| Message ID | 20210712194422.12405-3-prabhakar.mahadev-lad.rj@bp.renesas.com |
|---|---|
| State | New |
| Headers | show |
| Series | pin and gpio controller driver for Renesas RZ/G2L | expand |
Hi Prabhakar, On Mon, Jul 12, 2021 at 9:44 PM Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com> wrote: > > Add support for pin and gpio controller driver for RZ/G2L SoC. > > Based on a patch in the BSP by Hien Huynh <hien.huynh.px@renesas.com>. > > Signed-off-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com> > Reviewed-by: Biju Das <biju.das.jz@bp.renesas.com> Thanks for your patch! BTW, I assume GPIO interrupt handling needs another block on top, like on RZ/A using renesas,rza1-irqc? > --- a/drivers/pinctrl/renesas/Kconfig > +++ b/drivers/pinctrl/renesas/Kconfig > @@ -176,6 +176,17 @@ config PINCTRL_RZA2 > help > This selects GPIO and pinctrl driver for Renesas RZ/A2 platforms. > > +config PINCTRL_RZG2L > + bool "pin control support for RZ/G2L" > + depends on OF > + depends on ARCH_R9A07G044 || COMPILE_TEST > + select GPIOLIB > + select GENERIC_PINCTRL_GROUPS > + select GENERIC_PINMUX_FUNCTIONS > + select GENERIC_PINCONF > + help > + This selects GPIO and pinctrl driver for Renesas RZ/G2L platforms. > + > config PINCTRL_PFC_R8A77470 > bool "pin control support for RZ/G1C" if COMPILE_TEST > select PINCTRL_SH_PFC Do you want pin control for RZ/G2L to be optional (like RZ/A and RZ/N), or mandatory (like R-Car and RZ/G2[HMNE])? With the above, it is optional. > --- /dev/null > +++ b/drivers/pinctrl/renesas/pinctrl-rzg2l.c > +#define RZG2L_MULTIPLEXED_PIN_FUNCS (PIN_CFG_DRIVE_STRENGTH | \ > + PIN_CFG_SLEW_RATE | \ > + PIN_CFG_PULL_UP_DOWN | \ > + PIN_CFG_FILONOFF | \ > + PIN_CFG_FILNUM | \ > + PIN_CFG_FILCLKSEL) > + > +#define RZG2L_MULTIPLEXED_ETH_PIN_FUNCS(x) ((x) | \ > + PIN_CFG_FILONOFF | \ > + PIN_CFG_FILNUM | \ > + PIN_CFG_FILCLKSEL) s/MULTIPLEXED/MPXED/? Or MULTI? > + > +/* > + * n indicates number of pins in the port, a is the register index > + * and f is pin configuration capabilities supported. > + */ > +#define RZG2L_GPIO_PORT_PACK(n, a, f) (((n) << 28) | ((a) << 20) | (f)) > +#define RZG2L_GPIO_PORT_GET_PINCNT(x) ((((x) & ~GENMASK(28, 0)) >> 28) & 0x7) Can't the "& ~GENMASK(28, 0)" be dropped? > +#define RZG2L_GPIO_PORT_GET_INDEX(x) ((((x) & ~GENMASK(19, 0) & ~GENMASK(31, 28)) >> 20) & 0x7f) "& GENMASK(27, 20)"? > +#define RZG2L_GPIO_PORT_GET_CFGS(x) ((x) & ~GENMASK(31, 20)) "& GENMASK(19, 0)"? > + > +/* > + * BIT(31) indicates as dedicated pin, p is the register index while > + * referencing to SR/IEN/IOLH/FILxx registers, b is the register bits > + * (b * 8) and f is the pin configuration capabilities supported. > + */ > +#define RZG2L_DEDICIATED_PIN BIT(31) > +#define RZG2L_DEDICIATED_PIN_PACK(p, b, f) (RZG2L_DEDICIATED_PIN | \ > + ((p) << 24) | ((b) << 20) | (f)) > +#define RZG2L_DEDICIATED_PIN_GET_PORT(x) ((((x) & ~GENMASK(23, 0)) >> 24) & 0x7f) > +#define RZG2L_DEDICIATED_PIN_GET_BIT(x) ((((x) & ~GENMASK(19, 0)) >> 20) & 0x7) > +#define RZG2L_DEDICIATED_PIN_GET_CFGS(x) ((x) & ~GENMASK(31, 20)) DEDICATED? Or SINGLE (cfr. R-Car)? > + > +#define P(n) (0x0000 + 0x10 + (n)) > +#define PM(n) (0x0100 + 0x20 + (n) * 2) > +#define PMC(n) (0x0200 + 0x10 + (n)) > +#define PFC(n) (0x0400 + 0x40 + (n) * 4) > +#define PIN(n) (0x0800 + 0x10 + (n)) > +#define IEN(n) (0x1800 + (n) * 8) > +#define PWPR (0x3014) > +#define SD_CH(n) (0x3000 + (n) * 4) > + > +#define PVDD_1800 1 /* I/O domain voltage <= 1.8V */ > +#define PVDD_3300 0 /* I/O domain voltage >= 3.3V */ What's the meaning of the "<=" and ">=" in the comments? > + > +#define PWPR_B0WI BIT(7) /* Bit Write Disable */ > +#define PWPR_PFCWE BIT(6) /* PFC Register Write Enable */ > + > +#define PM_MASK 0x03 > +#define PVDD_MASK 0x01 > +#define PFC_MASK 0x07 > +#define IEN_MASK 0x01 > + > +#define PM_INPUT 0x1 > +#define PM_OUTPUT 0x2 > + > +#define RZG2L_PIN_ID_TO_PORT(id) ((id) / RZG2L_PINS_PER_PORT) > +#define RZG2L_PIN_ID_TO_PIN(id) ((id) % RZG2L_PINS_PER_PORT) > + > +struct rzg2l_dedicated_configs { > + const char *name; > + unsigned int config; u32? > +}; > + > +struct rzg2l_pinctrl_data { > + const char * const *port_pins; > + const unsigned int *port_pin_configs; u32, to match rzg2l_gpio_configs[] > + struct rzg2l_dedicated_configs *dedicated_pins; > + unsigned int n_port_pins; > + unsigned int n_dedicated_pins; > +}; > + > +struct rzg2l_pinctrl { > + struct pinctrl_dev *pctl; > + struct pinctrl_desc desc; > + struct pinctrl_pin_desc *pins; > + > + const struct rzg2l_pinctrl_data *data; > + void __iomem *base; > + struct device *dev; > + struct clk *clk; > + > + struct gpio_chip gpio_chip; > + struct pinctrl_gpio_range gpio_range; > + > + spinlock_t lock; > +}; > + > +static void rzg2l_pinctrl_set_pfc_mode(struct rzg2l_pinctrl *pctrl, > + u8 port, u8 pin, u8 func) > +{ > + unsigned long flags; > + u32 reg32; > + u16 reg16; > + u8 reg8; I think you can just use a single "u32 reg" for all register manipulation. > +static int rzg2l_dt_subnode_to_map(struct pinctrl_dev *pctldev, > + struct device_node *np, > + struct pinctrl_map **map, > + unsigned int *num_maps, > + unsigned int *index) > +{ > + struct rzg2l_pinctrl *pctrl = pinctrl_dev_get_drvdata(pctldev); > + unsigned long *configs = NULL; > + unsigned int idx = *index; > + struct property *pinmux; > + unsigned int nmaps = *num_maps; > + struct pinctrl_map *maps = *map; > + unsigned int num_pins; > + unsigned int num_configs; > + unsigned int num_pinmux = 0; > + unsigned int *pins, *psel_val; > + int i, ret, gsel, fsel; unsigned int i; > + const char **pin_fn; > + struct property *prop; > + const char *pin; [...] > + maps = krealloc(maps, sizeof(*maps) * nmaps, GFP_KERNEL); krealloc_array() > +static int rzg2l_pinctrl_pinconf_get(struct pinctrl_dev *pctldev, > + unsigned int _pin, > + unsigned long *config) > +{ > + struct rzg2l_pinctrl *pctrl = pinctrl_dev_get_drvdata(pctldev); > + enum pin_config_param param = pinconf_to_config_param(*config); > + const struct pinctrl_pin_desc *pin = &pctrl->desc.pins[_pin]; > + unsigned int *pin_data = pin->drv_data; > + unsigned int arg = 0; > + unsigned long flags; > + void __iomem *addr; > + u32 port = 0, reg; > + u32 cfg = 0; > + u8 bit = 0; > + > + if (!pin_data) > + return -EINVAL; > + > + if (*pin_data & RZG2L_DEDICIATED_PIN) { > + port = RZG2L_DEDICIATED_PIN_GET_PORT(*pin_data); > + cfg = RZG2L_DEDICIATED_PIN_GET_CFGS(*pin_data); > + bit = RZG2L_DEDICIATED_PIN_GET_BIT(*pin_data); > + } > + > + switch (param) { > + case PIN_CONFIG_INPUT_ENABLE: > + if (!(cfg & PIN_CFG_INPUT_ENABLE)) > + return -EINVAL; > + spin_lock_irqsave(&pctrl->lock, flags); > + /* handle _L/_H for 32-bit register read/write */ > + addr = pctrl->base + IEN(port) + ((bit > 3) ? 0x4 : 0x0); > + if (bit > 3) > + bit -= 4; You can combine the two identical tests, and get rid of the 3/4 difference, at the expense of 2 more lines: addr = pctrl->base + IEN(port); if (bit >= 4) { bit -= 4; addr += 4; } > + > + reg = readl(addr) & (IEN_MASK << (bit * 8)); > + arg = (reg >> (bit * 8)) & 0x1; > + spin_unlock_irqrestore(&pctrl->lock, flags); > + break; > + > + case PIN_CONFIG_POWER_SOURCE: > + if (!((cfg & PIN_CFG_IO_VOLTAGE_SD0) || (cfg & PIN_CFG_IO_VOLTAGE_SD1))) > + return -EINVAL; > + > + spin_lock_irqsave(&pctrl->lock, flags); > + addr = pctrl->base + ((cfg == PIN_CFG_IO_VOLTAGE_SD0) ? SD_CH(0) : SD_CH(1)); > + arg = (readl(addr) & PVDD_MASK) ? 1800 : 3300; > + spin_unlock_irqrestore(&pctrl->lock, flags); > + break; > + > + default: > + return -ENOTSUPP; EOPNOTSUPP (Checkpatch doesn't like this one, as it's only for NFSv3, apparently) > + } > + > + *config = pinconf_to_config_packed(param, arg); > + > + return 0; > +}; > + > +static int rzg2l_pinctrl_pinconf_set(struct pinctrl_dev *pctldev, > + unsigned int _pin, > + unsigned long *_configs, > + unsigned int num_configs) > +{ > + struct rzg2l_pinctrl *pctrl = pinctrl_dev_get_drvdata(pctldev); > + const struct pinctrl_pin_desc *pin = &pctrl->desc.pins[_pin]; > + unsigned int *pin_data = pin->drv_data; > + enum pin_config_param param; > + unsigned long flags; > + void __iomem *addr; > + u32 port = 0, reg; > + unsigned int i; > + u32 cfg = 0; > + u8 bit = 0; > + > + if (!pin_data) > + return -EINVAL; > + > + if (*pin_data & BIT(31)) { RZG2L_DEDICATED_PIN > + port = RZG2L_DEDICIATED_PIN_GET_PORT(*pin_data); > + cfg = RZG2L_DEDICIATED_PIN_GET_CFGS(*pin_data); > + bit = RZG2L_DEDICIATED_PIN_GET_BIT(*pin_data); > + } > + > + for (i = 0; i < num_configs; i++) { > + param = pinconf_to_config_param(_configs[i]); > + switch (param) { > + case PIN_CONFIG_INPUT_ENABLE: { > + unsigned int arg = > + pinconf_to_config_argument(_configs[i]); > + > + if (!(cfg & PIN_CFG_INPUT_ENABLE)) > + return -EINVAL; > + > + /* handle _L/_H for 32-bit register read/write */ > + addr = pctrl->base + IEN(port) + ((bit > 3) ? 0x4 : 0x0); > + if (bit > 3) > + bit -= 4; Same here as above. > + > + spin_lock_irqsave(&pctrl->lock, flags); > + reg = readl(addr) & ~(IEN_MASK << (bit * 8)); > + writel(reg | (arg << (bit * 8)), addr); > + spin_unlock_irqrestore(&pctrl->lock, flags); > + break; > + } > +static struct rzg2l_dedicated_configs rzg2l_dedicated_pins[] = { > + { "NMI", RZG2L_DEDICIATED_PIN_PACK(0x1, 0, (PIN_CFG_FILONOFF | > + PIN_CFG_FILNUM | > + PIN_CFG_FILCLKSEL)) }, I would put all PIN_CFG_* on a single line, for easier review. I.e. { "NMI", RZG2L_DEDICIATED_PIN_PACK(0x1, 0, (PIN_CFG_FILONOFF | PIN_CFG_FILNUM | PIN_CFG_FILCLKSEL)) }, > + { "TMS/SWDIO", RZG2L_DEDICIATED_PIN_PACK(0x2, 0, (PIN_CFG_SLEW_RATE | > + PIN_CFG_DRIVE_STRENGTH | > + PIN_CFG_INPUT_ENABLE))}, > + { "TDO", RZG2L_DEDICIATED_PIN_PACK(0x3, 0, (PIN_CFG_DRIVE_STRENGTH | > + PIN_CFG_SLEW_RATE | > + PIN_CFG_INPUT_ENABLE))}, > + { "AUDIO_CLK1", RZG2L_DEDICIATED_PIN_PACK(0x4, 0, PIN_CFG_INPUT_ENABLE)}, > + { "AUDIO_CLK2", RZG2L_DEDICIATED_PIN_PACK(0x4, 1, PIN_CFG_INPUT_ENABLE)}, > + { "SD0_CLK", RZG2L_DEDICIATED_PIN_PACK(0x6, 0, (PIN_CFG_DRIVE_STRENGTH | > + PIN_CFG_SLEW_RATE | > + PIN_CFG_IO_VOLTAGE_SD0))}, > + { "SD0_CMD", RZG2L_DEDICIATED_PIN_PACK(0x6, 1, (PIN_CFG_DRIVE_STRENGTH | > + PIN_CFG_SLEW_RATE | > + PIN_CFG_INPUT_ENABLE | > + PIN_CFG_IO_VOLTAGE_SD0))}, > + { "SD0_RST", RZG2L_DEDICIATED_PIN_PACK(0x6, 2, (PIN_CFG_DRIVE_STRENGTH | "SD0_RST#"? > + PIN_CFG_SLEW_RATE | > + PIN_CFG_IO_VOLTAGE_SD0))}, > + { "SD0_DATA0", RZG2L_DEDICIATED_PIN_PACK(0x7, 0, (PIN_CFG_DRIVE_STRENGTH | > + PIN_CFG_SLEW_RATE | > + PIN_CFG_INPUT_ENABLE | > + PIN_CFG_IO_VOLTAGE_SD0))}, > + { "SD0_DATA1", RZG2L_DEDICIATED_PIN_PACK(0x7, 1, (PIN_CFG_DRIVE_STRENGTH | > + PIN_CFG_SLEW_RATE | > + PIN_CFG_INPUT_ENABLE | > + PIN_CFG_IO_VOLTAGE_SD0))}, > + { "SD0_DATA2", RZG2L_DEDICIATED_PIN_PACK(0x7, 2, (PIN_CFG_DRIVE_STRENGTH | > + PIN_CFG_SLEW_RATE | > + PIN_CFG_INPUT_ENABLE | > + PIN_CFG_IO_VOLTAGE_SD0))}, > + { "SD0_DATA3", RZG2L_DEDICIATED_PIN_PACK(0x7, 3, (PIN_CFG_DRIVE_STRENGTH | > + PIN_CFG_SLEW_RATE | > + PIN_CFG_INPUT_ENABLE | > + PIN_CFG_IO_VOLTAGE_SD0))}, > + { "SD0_DATA4", RZG2L_DEDICIATED_PIN_PACK(0x7, 4, (PIN_CFG_DRIVE_STRENGTH | > + PIN_CFG_SLEW_RATE | > + PIN_CFG_INPUT_ENABLE | > + PIN_CFG_IO_VOLTAGE_SD0))}, > + { "SD0_DATA5", RZG2L_DEDICIATED_PIN_PACK(0x7, 5, (PIN_CFG_DRIVE_STRENGTH | > + PIN_CFG_SLEW_RATE | > + PIN_CFG_INPUT_ENABLE | > + PIN_CFG_IO_VOLTAGE_SD0))}, > + { "SD0_DATA6", RZG2L_DEDICIATED_PIN_PACK(0x7, 6, (PIN_CFG_DRIVE_STRENGTH | > + PIN_CFG_SLEW_RATE | > + PIN_CFG_INPUT_ENABLE | > + PIN_CFG_IO_VOLTAGE_SD0))}, > + { "SD0_DATA7", RZG2L_DEDICIATED_PIN_PACK(0x7, 7, (PIN_CFG_DRIVE_STRENGTH | > + PIN_CFG_SLEW_RATE | > + PIN_CFG_INPUT_ENABLE | > + PIN_CFG_IO_VOLTAGE_SD0))}, > + { "SD1_CLK", RZG2L_DEDICIATED_PIN_PACK(0x8, 0, (PIN_CFG_DRIVE_STRENGTH | > + PIN_CFG_SLEW_RATE | > + PIN_CFG_IO_VOLTAGE_SD1))}, > + { "SD1_CMD", RZG2L_DEDICIATED_PIN_PACK(0x8, 1, (PIN_CFG_DRIVE_STRENGTH | > + PIN_CFG_SLEW_RATE | > + PIN_CFG_INPUT_ENABLE | > + PIN_CFG_IO_VOLTAGE_SD1))}, > + { "SD1_DATA0", RZG2L_DEDICIATED_PIN_PACK(0x9, 0, (PIN_CFG_DRIVE_STRENGTH | > + PIN_CFG_SLEW_RATE | > + PIN_CFG_INPUT_ENABLE | > + PIN_CFG_IO_VOLTAGE_SD1))}, > + { "SD1_DATA1", RZG2L_DEDICIATED_PIN_PACK(0x9, 1, (PIN_CFG_DRIVE_STRENGTH | > + PIN_CFG_SLEW_RATE | > + PIN_CFG_INPUT_ENABLE | > + PIN_CFG_IO_VOLTAGE_SD1))}, > + { "SD1_DATA2", RZG2L_DEDICIATED_PIN_PACK(0x9, 2, (PIN_CFG_DRIVE_STRENGTH | > + PIN_CFG_SLEW_RATE | > + PIN_CFG_INPUT_ENABLE | > + PIN_CFG_IO_VOLTAGE_SD1))}, > + { "SD1_DATA3", RZG2L_DEDICIATED_PIN_PACK(0x9, 3, (PIN_CFG_DRIVE_STRENGTH | > + PIN_CFG_SLEW_RATE | > + PIN_CFG_INPUT_ENABLE | > + PIN_CFG_IO_VOLTAGE_SD1))}, > + { "QSPI0_SPCLK", RZG2L_DEDICIATED_PIN_PACK(0xa, 0, (PIN_CFG_DRIVE_STRENGTH | > + PIN_CFG_SLEW_RATE | > + PIN_CFG_IO_VOLTAGE_QSPI))}, > + { "QSPI0_IO0", RZG2L_DEDICIATED_PIN_PACK(0xa, 1, (PIN_CFG_DRIVE_STRENGTH | > + PIN_CFG_SLEW_RATE | > + PIN_CFG_IO_VOLTAGE_QSPI))}, > + { "QSPI0_IO1", RZG2L_DEDICIATED_PIN_PACK(0xa, 2, (PIN_CFG_DRIVE_STRENGTH | > + PIN_CFG_SLEW_RATE | > + PIN_CFG_IO_VOLTAGE_QSPI))}, > + { "QSPI0_IO2", RZG2L_DEDICIATED_PIN_PACK(0xa, 3, (PIN_CFG_DRIVE_STRENGTH | > + PIN_CFG_SLEW_RATE | > + PIN_CFG_IO_VOLTAGE_QSPI))}, > + { "QSPI0_IO3", RZG2L_DEDICIATED_PIN_PACK(0xa, 4, (PIN_CFG_DRIVE_STRENGTH | > + PIN_CFG_SLEW_RATE | > + PIN_CFG_IO_VOLTAGE_QSPI))}, > + { "QSPI0_SSL", RZG2L_DEDICIATED_PIN_PACK(0xa, 5, (PIN_CFG_DRIVE_STRENGTH | > + PIN_CFG_SLEW_RATE | > + PIN_CFG_IO_VOLTAGE_QSPI))}, > + { "QSPI1_SPCLK", RZG2L_DEDICIATED_PIN_PACK(0xb, 0, (PIN_CFG_DRIVE_STRENGTH | > + PIN_CFG_SLEW_RATE | > + PIN_CFG_IO_VOLTAGE_QSPI))}, > + { "QSPI1_IO0", RZG2L_DEDICIATED_PIN_PACK(0xb, 1, (PIN_CFG_DRIVE_STRENGTH | > + PIN_CFG_SLEW_RATE | > + PIN_CFG_IO_VOLTAGE_QSPI))}, > + { "QSPI1_1", RZG2L_DEDICIATED_PIN_PACK(0xb, 2, (PIN_CFG_DRIVE_STRENGTH | "QSPI1_IO1" (looks like a typo in the User's Manual) > + PIN_CFG_SLEW_RATE | > + PIN_CFG_IO_VOLTAGE_QSPI))}, > + { "QSPI1_IO2", RZG2L_DEDICIATED_PIN_PACK(0xb, 3, (PIN_CFG_DRIVE_STRENGTH | > + PIN_CFG_SLEW_RATE | > + PIN_CFG_IO_VOLTAGE_QSPI))}, > + { "QSPI1_IO3", RZG2L_DEDICIATED_PIN_PACK(0xb, 4, (PIN_CFG_DRIVE_STRENGTH | > + PIN_CFG_SLEW_RATE | > + PIN_CFG_IO_VOLTAGE_QSPI))}, > + { "QSPI1_SSL", RZG2L_DEDICIATED_PIN_PACK(0xb, 5, (PIN_CFG_DRIVE_STRENGTH | > + PIN_CFG_SLEW_RATE | > + PIN_CFG_IO_VOLTAGE_QSPI))}, > + { "QSPI_RESET", RZG2L_DEDICIATED_PIN_PACK(0xc, 0, (PIN_CFG_DRIVE_STRENGTH | "QSPI_RESET#"? > + PIN_CFG_SLEW_RATE | > + PIN_CFG_IO_VOLTAGE_QSPI))}, > + { "QSPI_WP", RZG2L_DEDICIATED_PIN_PACK(0xc, 1, (PIN_CFG_DRIVE_STRENGTH | "QSPI_WP#"? > + PIN_CFG_SLEW_RATE | > + PIN_CFG_IO_VOLTAGE_QSPI))}, > + { "QSPI_INT", RZG2L_DEDICIATED_PIN_PACK(0xc, 2, (PIN_CFG_DRIVE_STRENGTH | "QSPI_INT#"? This pin does not support drive strength. > + PIN_CFG_SLEW_RATE | > + PIN_CFG_IO_VOLTAGE_QSPI))}, > + { "WDTOVF_PERROUT", RZG2L_DEDICIATED_PIN_PACK(0xd, 0, (PIN_CFG_DRIVE_STRENGTH | "WDTOVF_PERROUT#"? > + PIN_CFG_SLEW_RATE))}, > + { "RIIC0_SDA", RZG2L_DEDICIATED_PIN_PACK(0xe, 0, PIN_CFG_INPUT_ENABLE)}, > + { "RIIC0_SCL", RZG2L_DEDICIATED_PIN_PACK(0xe, 1, PIN_CFG_INPUT_ENABLE)}, > + { "RIIC1_SDA", RZG2L_DEDICIATED_PIN_PACK(0xe, 2, PIN_CFG_INPUT_ENABLE)}, > + { "RIIC1_SCL", RZG2L_DEDICIATED_PIN_PACK(0xe, 3, PIN_CFG_INPUT_ENABLE)}, > +}; > +static int rzg2l_pinctrl_register(struct rzg2l_pinctrl *pctrl) > +{ > + struct pinctrl_pin_desc *pins; > + unsigned int *pin_data; u32, to match rzg2l_gpio_configs[] > + unsigned int i, j; > + int ret; > + > + pctrl->desc.name = DRV_NAME; > + pctrl->desc.npins = pctrl->data->n_port_pins + pctrl->data->n_dedicated_pins; > + pctrl->desc.pctlops = &rzg2l_pinctrl_pctlops; > + pctrl->desc.pmxops = &rzg2l_pinctrl_pmxops; > + pctrl->desc.confops = &rzg2l_pinctrl_confops; > + pctrl->desc.owner = THIS_MODULE; > + > + pins = devm_kcalloc(pctrl->dev, pctrl->desc.npins, sizeof(*pins), GFP_KERNEL); > + if (!pins) > + return -ENOMEM; > + > + pin_data = devm_kcalloc(pctrl->dev, pctrl->desc.npins, > + sizeof(unsigned int), GFP_KERNEL); sizeof(*pin_data) Gr{oetje,eeting}s, Geert -- Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@linux-m68k.org In personal conversations with technical people, I call myself a hacker. But when I'm talking to journalists I just say "programmer" or something like that. -- Linus Torvalds On Mon, Jul 12, 2021 at 9:44 PM Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com> wrote: > > Add support for pin and gpio controller driver for RZ/G2L SoC. > > Based on a patch in the BSP by Hien Huynh <hien.huynh.px@renesas.com>. > > Signed-off-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com> > Reviewed-by: Biju Das <biju.das.jz@bp.renesas.com> > --- > drivers/pinctrl/renesas/Kconfig | 11 + > drivers/pinctrl/renesas/Makefile | 1 + > drivers/pinctrl/renesas/pinctrl-rzg2l.c | 1196 +++++++++++++++++++++++ > 3 files changed, 1208 insertions(+) > create mode 100644 drivers/pinctrl/renesas/pinctrl-rzg2l.c > > diff --git a/drivers/pinctrl/renesas/Kconfig b/drivers/pinctrl/renesas/Kconfig > index 4b84a744ae87..16ce795460f2 100644 > --- a/drivers/pinctrl/renesas/Kconfig > +++ b/drivers/pinctrl/renesas/Kconfig > @@ -176,6 +176,17 @@ config PINCTRL_RZA2 > help > This selects GPIO and pinctrl driver for Renesas RZ/A2 platforms. > > +config PINCTRL_RZG2L > + bool "pin control support for RZ/G2L" > + depends on OF > + depends on ARCH_R9A07G044 || COMPILE_TEST > + select GPIOLIB > + select GENERIC_PINCTRL_GROUPS > + select GENERIC_PINMUX_FUNCTIONS > + select GENERIC_PINCONF > + help > + This selects GPIO and pinctrl driver for Renesas RZ/G2L platforms. > + > config PINCTRL_PFC_R8A77470 > bool "pin control support for RZ/G1C" if COMPILE_TEST > select PINCTRL_SH_PFC > diff --git a/drivers/pinctrl/renesas/Makefile b/drivers/pinctrl/renesas/Makefile > index 353563228dc2..7d9238a9ef57 100644 > --- a/drivers/pinctrl/renesas/Makefile > +++ b/drivers/pinctrl/renesas/Makefile > @@ -46,6 +46,7 @@ obj-$(CONFIG_PINCTRL_PFC_SHX3) += pfc-shx3.o > > obj-$(CONFIG_PINCTRL_RZA1) += pinctrl-rza1.o > obj-$(CONFIG_PINCTRL_RZA2) += pinctrl-rza2.o > +obj-$(CONFIG_PINCTRL_RZG2L) += pinctrl-rzg2l.o > obj-$(CONFIG_PINCTRL_RZN1) += pinctrl-rzn1.o > > ifeq ($(CONFIG_COMPILE_TEST),y) > diff --git a/drivers/pinctrl/renesas/pinctrl-rzg2l.c b/drivers/pinctrl/renesas/pinctrl-rzg2l.c > new file mode 100644 > index 000000000000..3e786f15d009 > --- /dev/null > +++ b/drivers/pinctrl/renesas/pinctrl-rzg2l.c > @@ -0,0 +1,1196 @@ > +// SPDX-License-Identifier: GPL-2.0 > +/* > + * Renesas RZ/G2L Pin Control and GPIO driver core > + * > + * Copyright (C) 2021 Renesas Electronics Corporation. > + */ > + > +#include <linux/bitops.h> > +#include <linux/clk.h> > +#include <linux/gpio/driver.h> > +#include <linux/io.h> > +#include <linux/module.h> > +#include <linux/of_device.h> > +#include <linux/pinctrl/pinconf-generic.h> > +#include <linux/pinctrl/pinconf.h> > +#include <linux/pinctrl/pinctrl.h> > +#include <linux/pinctrl/pinmux.h> > +#include <linux/spinlock.h> > + > +#include <dt-bindings/pinctrl/rzg2l-pinctrl.h> > + > +#include "../core.h" > +#include "../pinconf.h" > +#include "../pinmux.h" > + > +#define DRV_NAME "pinctrl-rzg2l" > + > +/* > + * Use 16 lower bits [15:0] for pin identifier > + * Use 16 higher bits [31:16] for pin mux function > + */ > +#define MUX_PIN_ID_MASK GENMASK(15, 0) > +#define MUX_FUNC_MASK GENMASK(31, 16) > +#define MUX_FUNC_OFFS 16 > +#define MUX_FUNC(pinconf) (((pinconf) & MUX_FUNC_MASK) >> MUX_FUNC_OFFS) > + > +/* PIN capabilities */ > +#define PIN_CFG_DRIVE_STRENGTH BIT(0) > +#define PIN_CFG_SLEW_RATE BIT(1) > +#define PIN_CFG_INPUT_ENABLE BIT(2) > +#define PIN_CFG_PULL_UP_DOWN BIT(3) > +#define PIN_CFG_IO_VOLTAGE_SD0 BIT(4) > +#define PIN_CFG_IO_VOLTAGE_SD1 BIT(5) > +#define PIN_CFG_IO_VOLTAGE_QSPI BIT(6) > +#define PIN_CFG_IO_VOLTAGE_ETH0 BIT(7) > +#define PIN_CFG_IO_VOLTAGE_ETH1 BIT(8) > +#define PIN_CFG_FILONOFF BIT(9) > +#define PIN_CFG_FILNUM BIT(10) > +#define PIN_CFG_FILCLKSEL BIT(11) > + > +#define RZG2L_MULTIPLEXED_PIN_FUNCS (PIN_CFG_DRIVE_STRENGTH | \ > + PIN_CFG_SLEW_RATE | \ > + PIN_CFG_PULL_UP_DOWN | \ > + PIN_CFG_FILONOFF | \ > + PIN_CFG_FILNUM | \ > + PIN_CFG_FILCLKSEL) > + > +#define RZG2L_MULTIPLEXED_ETH_PIN_FUNCS(x) ((x) | \ > + PIN_CFG_FILONOFF | \ > + PIN_CFG_FILNUM | \ > + PIN_CFG_FILCLKSEL) > + > +/* > + * n indicates number of pins in the port, a is the register index > + * and f is pin configuration capabilities supported. > + */ > +#define RZG2L_GPIO_PORT_PACK(n, a, f) (((n) << 28) | ((a) << 20) | (f)) > +#define RZG2L_GPIO_PORT_GET_PINCNT(x) ((((x) & ~GENMASK(28, 0)) >> 28) & 0x7) > +#define RZG2L_GPIO_PORT_GET_INDEX(x) ((((x) & ~GENMASK(19, 0) & ~GENMASK(31, 28)) >> 20) & 0x7f) > +#define RZG2L_GPIO_PORT_GET_CFGS(x) ((x) & ~GENMASK(31, 20)) > + > +/* > + * BIT(31) indicates as dedicated pin, p is the register index while > + * referencing to SR/IEN/IOLH/FILxx registers, b is the register bits > + * (b * 8) and f is the pin configuration capabilities supported. > + */ > +#define RZG2L_DEDICIATED_PIN BIT(31) > +#define RZG2L_DEDICIATED_PIN_PACK(p, b, f) (RZG2L_DEDICIATED_PIN | \ > + ((p) << 24) | ((b) << 20) | (f)) > +#define RZG2L_DEDICIATED_PIN_GET_PORT(x) ((((x) & ~GENMASK(23, 0)) >> 24) & 0x7f) > +#define RZG2L_DEDICIATED_PIN_GET_BIT(x) ((((x) & ~GENMASK(19, 0)) >> 20) & 0x7) > +#define RZG2L_DEDICIATED_PIN_GET_CFGS(x) ((x) & ~GENMASK(31, 20)) > + > +#define P(n) (0x0000 + 0x10 + (n)) > +#define PM(n) (0x0100 + 0x20 + (n) * 2) > +#define PMC(n) (0x0200 + 0x10 + (n)) > +#define PFC(n) (0x0400 + 0x40 + (n) * 4) > +#define PIN(n) (0x0800 + 0x10 + (n)) > +#define IEN(n) (0x1800 + (n) * 8) > +#define PWPR (0x3014) > +#define SD_CH(n) (0x3000 + (n) * 4) > + > +#define PVDD_1800 1 /* I/O domain voltage <= 1.8V */ > +#define PVDD_3300 0 /* I/O domain voltage >= 3.3V */ > + > +#define PWPR_B0WI BIT(7) /* Bit Write Disable */ > +#define PWPR_PFCWE BIT(6) /* PFC Register Write Enable */ > + > +#define PM_MASK 0x03 > +#define PVDD_MASK 0x01 > +#define PFC_MASK 0x07 > +#define IEN_MASK 0x01 > + > +#define PM_INPUT 0x1 > +#define PM_OUTPUT 0x2 > + > +#define RZG2L_PIN_ID_TO_PORT(id) ((id) / RZG2L_PINS_PER_PORT) > +#define RZG2L_PIN_ID_TO_PIN(id) ((id) % RZG2L_PINS_PER_PORT) > + > +struct rzg2l_dedicated_configs { > + const char *name; > + unsigned int config; > +}; > + > +struct rzg2l_pinctrl_data { > + const char * const *port_pins; > + const unsigned int *port_pin_configs; > + struct rzg2l_dedicated_configs *dedicated_pins; > + unsigned int n_port_pins; > + unsigned int n_dedicated_pins; > +}; > + > +struct rzg2l_pinctrl { > + struct pinctrl_dev *pctl; > + struct pinctrl_desc desc; > + struct pinctrl_pin_desc *pins; > + > + const struct rzg2l_pinctrl_data *data; > + void __iomem *base; > + struct device *dev; > + struct clk *clk; > + > + struct gpio_chip gpio_chip; > + struct pinctrl_gpio_range gpio_range; > + > + spinlock_t lock; > +}; > + > +static void rzg2l_pinctrl_set_pfc_mode(struct rzg2l_pinctrl *pctrl, > + u8 port, u8 pin, u8 func) > +{ > + unsigned long flags; > + u32 reg32; > + u16 reg16; > + u8 reg8; > + > + spin_lock_irqsave(&pctrl->lock, flags); > + > + /* Set pin to 'Non-use (Hi-Z input protection)' */ > + reg16 = readw(pctrl->base + PM(port)); > + reg16 &= ~(PM_MASK << (pin * 2)); > + writew(reg16, pctrl->base + PM(port)); > + > + /* Temporarily switch to GPIO mode with PMC register */ > + reg8 = readb(pctrl->base + PMC(port)); > + writeb(reg8 & ~BIT(pin), pctrl->base + PMC(port)); > + > + /* Set the PWPR register to allow PFC register to write */ > + writel(0x0, pctrl->base + PWPR); /* B0WI=0, PFCWE=0 */ > + writel(PWPR_PFCWE, pctrl->base + PWPR); /* B0WI=0, PFCWE=1 */ > + > + /* Select Pin function mode with PFC register */ > + reg32 = readl(pctrl->base + PFC(port)); > + reg32 &= ~(PFC_MASK << (pin * 4)); > + writel(reg32 | (func << (pin * 4)), pctrl->base + PFC(port)); > + > + /* Set the PWPR register to be write-protected */ > + writel(0x0, pctrl->base + PWPR); /* B0WI=0, PFCWE=0 */ > + writel(PWPR_B0WI, pctrl->base + PWPR); /* B0WI=1, PFCWE=0 */ > + > + /* Switch to Peripheral pin function with PMC register */ > + reg8 = readb(pctrl->base + PMC(port)); > + writeb(reg8 | BIT(pin), pctrl->base + PMC(port)); > + > + spin_unlock_irqrestore(&pctrl->lock, flags); > +}; > + > +static int rzg2l_pinctrl_set_mux(struct pinctrl_dev *pctldev, > + unsigned int func_selector, > + unsigned int group_selector) > +{ > + struct rzg2l_pinctrl *pctrl = pinctrl_dev_get_drvdata(pctldev); > + struct function_desc *func; > + unsigned int i, *psel_val; > + struct group_desc *group; > + unsigned long data; > + int *pins; > + > + func = pinmux_generic_get_function(pctldev, func_selector); > + if (!func) > + return -EINVAL; > + group = pinctrl_generic_get_group(pctldev, group_selector); > + if (!group) > + return -EINVAL; > + > + psel_val = func->data; > + pins = group->pins; > + data = (unsigned long)group->data; > + > + for (i = 0; i < group->num_pins; i++) { > + dev_dbg(pctrl->dev, "port:%u pin: %u PSEL:%u\n", > + RZG2L_PIN_ID_TO_PORT(pins[i]), RZG2L_PIN_ID_TO_PIN(pins[i]), > + psel_val[i]); > + rzg2l_pinctrl_set_pfc_mode(pctrl, RZG2L_PIN_ID_TO_PORT(pins[i]), > + RZG2L_PIN_ID_TO_PIN(pins[i]), psel_val[i]); > + } > + > + return 0; > +}; > + > +static int rzg2l_map_add_config(struct pinctrl_map *map, > + const char *group_or_pin, > + enum pinctrl_map_type type, > + unsigned long *configs, > + unsigned int num_configs) > +{ > + unsigned long *cfgs; > + > + cfgs = kmemdup(configs, num_configs * sizeof(*cfgs), > + GFP_KERNEL); > + if (!cfgs) > + return -ENOMEM; > + > + map->type = type; > + map->data.configs.group_or_pin = group_or_pin; > + map->data.configs.configs = cfgs; > + map->data.configs.num_configs = num_configs; > + > + return 0; > +} > + > +static int rzg2l_dt_subnode_to_map(struct pinctrl_dev *pctldev, > + struct device_node *np, > + struct pinctrl_map **map, > + unsigned int *num_maps, > + unsigned int *index) > +{ > + struct rzg2l_pinctrl *pctrl = pinctrl_dev_get_drvdata(pctldev); > + unsigned long *configs = NULL; > + unsigned int idx = *index; > + struct property *pinmux; > + unsigned int nmaps = *num_maps; > + struct pinctrl_map *maps = *map; > + unsigned int num_pins; > + unsigned int num_configs; > + unsigned int num_pinmux = 0; > + unsigned int *pins, *psel_val; > + int i, ret, gsel, fsel; > + const char **pin_fn; > + struct property *prop; > + const char *pin; > + > + pinmux = of_find_property(np, "pinmux", NULL); > + if (pinmux) > + num_pinmux = pinmux->length / sizeof(u32); > + > + ret = of_property_count_strings(np, "pins"); > + if (ret == -EINVAL) { > + num_pins = 0; > + } else if (ret < 0) { > + dev_err(pctrl->dev, "Invalid pins list in DT\n"); > + return ret; > + } else { > + num_pins = ret; > + } > + > + if (!num_pinmux && !num_pins) > + return 0; > + > + if (num_pinmux && num_pins) { > + dev_err(pctrl->dev, > + "DT node must contain either a pinmux or pins and not both\n"); > + return -EINVAL; > + } > + > + ret = pinconf_generic_parse_dt_config(np, NULL, &configs, &num_configs); > + if (ret < 0) > + return ret; > + > + if (num_pins && !num_configs) { > + dev_err(pctrl->dev, "DT node must contain a config\n"); > + ret = -ENODEV; > + goto done; > + } > + > + if (num_pinmux) > + nmaps += 1; > + > + if (num_pins) > + nmaps += num_pins; > + > + maps = krealloc(maps, sizeof(*maps) * nmaps, GFP_KERNEL); > + if (!maps) { > + ret = -ENOMEM; > + goto done; > + } > + > + *map = maps; > + *num_maps = nmaps; > + if (num_pins) { > + of_property_for_each_string(np, "pins", prop, pin) { > + ret = rzg2l_map_add_config(&maps[idx], pin, > + PIN_MAP_TYPE_CONFIGS_PIN, > + configs, num_configs); > + if (ret < 0) > + goto done; > + > + idx++; > + } > + ret = 0; > + goto done; > + } > + > + pins = devm_kcalloc(pctrl->dev, num_pinmux, sizeof(*pins), GFP_KERNEL); > + psel_val = devm_kcalloc(pctrl->dev, num_pinmux, sizeof(*psel_val), > + GFP_KERNEL); > + pin_fn = devm_kzalloc(pctrl->dev, sizeof(*pin_fn), GFP_KERNEL); > + if (!pins || !psel_val || !pin_fn) { > + ret = -ENOMEM; > + goto done; > + } > + > + /* Collect pin locations and mux settings from DT properties */ > + for (i = 0; i < num_pinmux; ++i) { > + u32 value; > + > + ret = of_property_read_u32_index(np, "pinmux", i, &value); > + if (ret) > + goto done; > + pins[i] = value & MUX_PIN_ID_MASK; > + psel_val[i] = MUX_FUNC(value); > + } > + > + /* Register a single pin group listing all the pins we read from DT */ > + gsel = pinctrl_generic_add_group(pctldev, np->name, pins, num_pinmux, NULL); > + if (gsel < 0) { > + ret = gsel; > + goto done; > + } > + > + /* > + * Register a single group function where the 'data' is an array PSEL > + * register values read from DT. > + */ > + pin_fn[0] = np->name; > + fsel = pinmux_generic_add_function(pctldev, np->name, pin_fn, 1, > + psel_val); > + if (fsel < 0) { > + ret = fsel; > + goto remove_group; > + } > + > + maps[idx].type = PIN_MAP_TYPE_MUX_GROUP; > + maps[idx].data.mux.group = np->name; > + maps[idx].data.mux.function = np->name; > + idx++; > + > + dev_dbg(pctrl->dev, "Parsed %pOF with %d pins\n", np, num_pinmux); > + ret = 0; > + goto done; > + > +remove_group: > + pinctrl_generic_remove_group(pctldev, gsel); > +done: > + *index = idx; > + kfree(configs); > + return ret; > +} > + > +static void rzg2l_dt_free_map(struct pinctrl_dev *pctldev, > + struct pinctrl_map *map, > + unsigned int num_maps) > +{ > + unsigned int i; > + > + if (!map) > + return; > + > + for (i = 0; i < num_maps; ++i) { > + if (map[i].type == PIN_MAP_TYPE_CONFIGS_GROUP || > + map[i].type == PIN_MAP_TYPE_CONFIGS_PIN) > + kfree(map[i].data.configs.configs); > + } > + kfree(map); > +} > + > +static int rzg2l_dt_node_to_map(struct pinctrl_dev *pctldev, > + struct device_node *np, > + struct pinctrl_map **map, > + unsigned int *num_maps) > +{ > + struct rzg2l_pinctrl *pctrl = pinctrl_dev_get_drvdata(pctldev); > + struct device_node *child; > + unsigned int index; > + int ret; > + > + *map = NULL; > + *num_maps = 0; > + index = 0; > + > + for_each_child_of_node(np, child) { > + ret = rzg2l_dt_subnode_to_map(pctldev, child, map, > + num_maps, &index); > + if (ret < 0) { > + of_node_put(child); > + goto done; > + } > + } > + > + if (*num_maps == 0) { > + ret = rzg2l_dt_subnode_to_map(pctldev, np, map, > + num_maps, &index); > + if (ret < 0) > + goto done; > + } > + > + if (*num_maps) > + return 0; > + > + dev_err(pctrl->dev, "no mapping found in node %pOF\n", np); > + ret = -EINVAL; > + > +done: > + if (ret < 0) > + rzg2l_dt_free_map(pctldev, *map, *num_maps); > + > + return ret; > +} > + > +static int rzg2l_pinctrl_pinconf_get(struct pinctrl_dev *pctldev, > + unsigned int _pin, > + unsigned long *config) > +{ > + struct rzg2l_pinctrl *pctrl = pinctrl_dev_get_drvdata(pctldev); > + enum pin_config_param param = pinconf_to_config_param(*config); > + const struct pinctrl_pin_desc *pin = &pctrl->desc.pins[_pin]; > + unsigned int *pin_data = pin->drv_data; > + unsigned int arg = 0; > + unsigned long flags; > + void __iomem *addr; > + u32 port = 0, reg; > + u32 cfg = 0; > + u8 bit = 0; > + > + if (!pin_data) > + return -EINVAL; > + > + if (*pin_data & RZG2L_DEDICIATED_PIN) { > + port = RZG2L_DEDICIATED_PIN_GET_PORT(*pin_data); > + cfg = RZG2L_DEDICIATED_PIN_GET_CFGS(*pin_data); > + bit = RZG2L_DEDICIATED_PIN_GET_BIT(*pin_data); > + } > + > + switch (param) { > + case PIN_CONFIG_INPUT_ENABLE: > + if (!(cfg & PIN_CFG_INPUT_ENABLE)) > + return -EINVAL; > + spin_lock_irqsave(&pctrl->lock, flags); > + /* handle _L/_H for 32-bit register read/write */ > + addr = pctrl->base + IEN(port) + ((bit > 3) ? 0x4 : 0x0); > + if (bit > 3) > + bit -= 4; > + > + reg = readl(addr) & (IEN_MASK << (bit * 8)); > + arg = (reg >> (bit * 8)) & 0x1; > + spin_unlock_irqrestore(&pctrl->lock, flags); > + break; > + > + case PIN_CONFIG_POWER_SOURCE: > + if (!((cfg & PIN_CFG_IO_VOLTAGE_SD0) || (cfg & PIN_CFG_IO_VOLTAGE_SD1))) > + return -EINVAL; > + > + spin_lock_irqsave(&pctrl->lock, flags); > + addr = pctrl->base + ((cfg == PIN_CFG_IO_VOLTAGE_SD0) ? SD_CH(0) : SD_CH(1)); > + arg = (readl(addr) & PVDD_MASK) ? 1800 : 3300; > + spin_unlock_irqrestore(&pctrl->lock, flags); > + break; > + > + default: > + return -ENOTSUPP; > + } > + > + *config = pinconf_to_config_packed(param, arg); > + > + return 0; > +}; > + > +static int rzg2l_pinctrl_pinconf_set(struct pinctrl_dev *pctldev, > + unsigned int _pin, > + unsigned long *_configs, > + unsigned int num_configs) > +{ > + struct rzg2l_pinctrl *pctrl = pinctrl_dev_get_drvdata(pctldev); > + const struct pinctrl_pin_desc *pin = &pctrl->desc.pins[_pin]; > + unsigned int *pin_data = pin->drv_data; > + enum pin_config_param param; > + unsigned long flags; > + void __iomem *addr; > + u32 port = 0, reg; > + unsigned int i; > + u32 cfg = 0; > + u8 bit = 0; > + > + if (!pin_data) > + return -EINVAL; > + > + if (*pin_data & BIT(31)) { > + port = RZG2L_DEDICIATED_PIN_GET_PORT(*pin_data); > + cfg = RZG2L_DEDICIATED_PIN_GET_CFGS(*pin_data); > + bit = RZG2L_DEDICIATED_PIN_GET_BIT(*pin_data); > + } > + > + for (i = 0; i < num_configs; i++) { > + param = pinconf_to_config_param(_configs[i]); > + switch (param) { > + case PIN_CONFIG_INPUT_ENABLE: { > + unsigned int arg = > + pinconf_to_config_argument(_configs[i]); > + > + if (!(cfg & PIN_CFG_INPUT_ENABLE)) > + return -EINVAL; > + > + /* handle _L/_H for 32-bit register read/write */ > + addr = pctrl->base + IEN(port) + ((bit > 3) ? 0x4 : 0x0); > + if (bit > 3) > + bit -= 4; > + > + spin_lock_irqsave(&pctrl->lock, flags); > + reg = readl(addr) & ~(IEN_MASK << (bit * 8)); > + writel(reg | (arg << (bit * 8)), addr); > + spin_unlock_irqrestore(&pctrl->lock, flags); > + break; > + } > + > + case PIN_CONFIG_POWER_SOURCE: { > + unsigned int mV = pinconf_to_config_argument(_configs[i]); > + > + if (mV != 1800 && mV != 3300) > + return -EINVAL; > + > + if (!(cfg & PIN_CFG_IO_VOLTAGE_SD0 || cfg & PIN_CFG_IO_VOLTAGE_SD1)) > + return -EINVAL; > + > + addr = pctrl->base + ((cfg == PIN_CFG_IO_VOLTAGE_SD0) ? > + SD_CH(0) : SD_CH(1)); > + spin_lock_irqsave(&pctrl->lock, flags); > + writel((mV == 1800) ? PVDD_1800 : PVDD_3300, addr); > + spin_unlock_irqrestore(&pctrl->lock, flags); > + break; > + } > + default: > + return -EOPNOTSUPP; > + } > + } > + > + return 0; > +} > + > +static int rzg2l_pinctrl_pinconf_group_set(struct pinctrl_dev *pctldev, > + unsigned int group, > + unsigned long *configs, > + unsigned int num_configs) > +{ > + const unsigned int *pins; > + unsigned int i, npins; > + int ret; > + > + ret = pinctrl_generic_get_group_pins(pctldev, group, &pins, &npins); > + if (ret) > + return ret; > + > + for (i = 0; i < npins; i++) { > + ret = rzg2l_pinctrl_pinconf_set(pctldev, pins[i], configs, > + num_configs); > + if (ret) > + return ret; > + } > + > + return 0; > +}; > + > +static int rzg2l_pinctrl_pinconf_group_get(struct pinctrl_dev *pctldev, > + unsigned int group, > + unsigned long *config) > +{ > + const unsigned int *pins; > + unsigned int i, npins, prev_config = 0; > + int ret; > + > + ret = pinctrl_generic_get_group_pins(pctldev, group, &pins, &npins); > + if (ret) > + return ret; > + > + for (i = 0; i < npins; i++) { > + ret = rzg2l_pinctrl_pinconf_get(pctldev, pins[i], config); > + if (ret) > + return ret; > + > + /* Check config matching between to pin */ > + if (i && prev_config != *config) > + return -EOPNOTSUPP; > + > + prev_config = *config; > + } > + > + return 0; > +}; > + > +static const struct pinctrl_ops rzg2l_pinctrl_pctlops = { > + .get_groups_count = pinctrl_generic_get_group_count, > + .get_group_name = pinctrl_generic_get_group_name, > + .get_group_pins = pinctrl_generic_get_group_pins, > + .dt_node_to_map = rzg2l_dt_node_to_map, > + .dt_free_map = rzg2l_dt_free_map, > +}; > + > +static const struct pinmux_ops rzg2l_pinctrl_pmxops = { > + .get_functions_count = pinmux_generic_get_function_count, > + .get_function_name = pinmux_generic_get_function_name, > + .get_function_groups = pinmux_generic_get_function_groups, > + .set_mux = rzg2l_pinctrl_set_mux, > + .strict = true, > +}; > + > +static const struct pinconf_ops rzg2l_pinctrl_confops = { > + .is_generic = true, > + .pin_config_get = rzg2l_pinctrl_pinconf_get, > + .pin_config_set = rzg2l_pinctrl_pinconf_set, > + .pin_config_group_set = rzg2l_pinctrl_pinconf_group_set, > + .pin_config_group_get = rzg2l_pinctrl_pinconf_group_get, > + .pin_config_config_dbg_show = pinconf_generic_dump_config, > +}; > + > +static int rzg2l_gpio_request(struct gpio_chip *chip, unsigned int offset) > +{ > + struct rzg2l_pinctrl *pctrl = gpiochip_get_data(chip); > + u32 port = RZG2L_PIN_ID_TO_PORT(offset); > + u8 bit = RZG2L_PIN_ID_TO_PIN(offset); > + unsigned long flags; > + u8 reg8; > + int ret; > + > + ret = pinctrl_gpio_request(chip->base + offset); > + if (ret) > + return ret; > + > + spin_lock_irqsave(&pctrl->lock, flags); > + > + /* Select GPIO mode in PMC Register */ > + reg8 = readb(pctrl->base + PMC(port)); > + reg8 &= ~BIT(bit); > + writeb(reg8, pctrl->base + PMC(port)); > + > + spin_unlock_irqrestore(&pctrl->lock, flags); > + > + return 0; > +} > + > +static void rzg2l_gpio_set_direction(struct rzg2l_pinctrl *pctrl, u32 port, > + u8 bit, bool output) > +{ > + unsigned long flags; > + u16 reg16; > + > + spin_lock_irqsave(&pctrl->lock, flags); > + > + reg16 = readw(pctrl->base + PM(port)); > + reg16 &= ~(PM_MASK << (bit * 2)); > + > + reg16 |= (output ? PM_OUTPUT : PM_INPUT) << (bit * 2); > + writew(reg16, pctrl->base + PM(port)); > + > + spin_unlock_irqrestore(&pctrl->lock, flags); > +} > + > +static int rzg2l_gpio_get_direction(struct gpio_chip *chip, unsigned int offset) > +{ > + struct rzg2l_pinctrl *pctrl = gpiochip_get_data(chip); > + u32 port = RZG2L_PIN_ID_TO_PORT(offset); > + u8 bit = RZG2L_PIN_ID_TO_PIN(offset); > + > + if (!(readb(pctrl->base + PMC(port)) & BIT(bit))) { > + u16 reg16; > + > + reg16 = readw(pctrl->base + PM(port)); > + reg16 = (reg16 >> (bit * 2)) & PM_MASK; > + if (reg16 == PM_OUTPUT) > + return GPIO_LINE_DIRECTION_OUT; > + } > + > + return GPIO_LINE_DIRECTION_IN; > +} > + > +static int rzg2l_gpio_direction_input(struct gpio_chip *chip, > + unsigned int offset) > +{ > + struct rzg2l_pinctrl *pctrl = gpiochip_get_data(chip); > + u32 port = RZG2L_PIN_ID_TO_PORT(offset); > + u8 bit = RZG2L_PIN_ID_TO_PIN(offset); > + > + rzg2l_gpio_set_direction(pctrl, port, bit, false); > + > + return 0; > +} > + > +static void rzg2l_gpio_set(struct gpio_chip *chip, unsigned int offset, > + int value) > +{ > + struct rzg2l_pinctrl *pctrl = gpiochip_get_data(chip); > + u32 port = RZG2L_PIN_ID_TO_PORT(offset); > + u8 bit = RZG2L_PIN_ID_TO_PIN(offset); > + unsigned long flags; > + u8 reg8; > + > + spin_lock_irqsave(&pctrl->lock, flags); > + > + reg8 = readb(pctrl->base + P(port)); > + > + if (value) > + writeb(reg8 | BIT(bit), pctrl->base + P(port)); > + else > + writeb(reg8 & ~BIT(bit), pctrl->base + P(port)); > + > + spin_unlock_irqrestore(&pctrl->lock, flags); > +} > + > +static int rzg2l_gpio_direction_output(struct gpio_chip *chip, > + unsigned int offset, int value) > +{ > + struct rzg2l_pinctrl *pctrl = gpiochip_get_data(chip); > + u32 port = RZG2L_PIN_ID_TO_PORT(offset); > + u8 bit = RZG2L_PIN_ID_TO_PIN(offset); > + > + rzg2l_gpio_set(chip, offset, value); > + rzg2l_gpio_set_direction(pctrl, port, bit, true); > + > + return 0; > +} > + > +static int rzg2l_gpio_get(struct gpio_chip *chip, unsigned int offset) > +{ > + struct rzg2l_pinctrl *pctrl = gpiochip_get_data(chip); > + u32 port = RZG2L_PIN_ID_TO_PORT(offset); > + u8 bit = RZG2L_PIN_ID_TO_PIN(offset); > + u16 reg16; > + > + reg16 = readw(pctrl->base + PM(port)); > + reg16 = (reg16 >> (bit * 2)) & PM_MASK; > + > + if (reg16 == PM_INPUT) > + return !!(readb(pctrl->base + PIN(port)) & BIT(bit)); > + else if (reg16 == PM_OUTPUT) > + return !!(readb(pctrl->base + P(port)) & BIT(bit)); > + else > + return -EINVAL; > +} > + > +static void rzg2l_gpio_free(struct gpio_chip *chip, unsigned int offset) > +{ > + pinctrl_gpio_free(chip->base + offset); > + > + /* > + * Set the GPIO as an input to ensure that the next GPIO request won't > + * drive the GPIO pin as an output. > + */ > + rzg2l_gpio_direction_input(chip, offset); > +} > + > +static const char * const rzg2l_gpio_names[] = { > + "P0_0", "P0_1", "P0_2", "P0_3", "P0_4", "P0_5", "P0_6", "P0_7", > + "P1_0", "P1_1", "P1_2", "P1_3", "P1_4", "P1_5", "P1_6", "P1_7", > + "P2_0", "P2_1", "P2_2", "P2_3", "P2_4", "P2_5", "P2_6", "P2_7", > + "P3_0", "P3_1", "P3_2", "P3_3", "P3_4", "P3_5", "P3_6", "P3_7", > + "P4_0", "P4_1", "P4_2", "P4_3", "P4_4", "P4_5", "P4_6", "P4_7", > + "P5_0", "P5_1", "P5_2", "P5_3", "P5_4", "P5_5", "P5_6", "P5_7", > + "P6_0", "P6_1", "P6_2", "P6_3", "P6_4", "P6_5", "P6_6", "P6_7", > + "P7_0", "P7_1", "P7_2", "P7_3", "P7_4", "P7_5", "P7_6", "P7_7", > + "P8_0", "P8_1", "P8_2", "P8_3", "P8_4", "P8_5", "P8_6", "P8_7", > + "P9_0", "P9_1", "P9_2", "P9_3", "P9_4", "P9_5", "P9_6", "P9_7", > + "P10_0", "P10_1", "P10_2", "P10_3", "P10_4", "P10_5", "P10_6", "P10_7", > + "P11_0", "P11_1", "P11_2", "P11_3", "P11_4", "P11_5", "P11_6", "P11_7", > + "P12_0", "P12_1", "P12_2", "P12_3", "P12_4", "P12_5", "P12_6", "P12_7", > + "P13_0", "P13_1", "P13_2", "P13_3", "P13_4", "P13_5", "P13_6", "P13_7", > + "P14_0", "P14_1", "P14_2", "P14_3", "P14_4", "P14_5", "P14_6", "P14_7", > + "P15_0", "P15_1", "P15_2", "P15_3", "P15_4", "P15_5", "P15_6", "P15_7", > + "P16_0", "P16_1", "P16_2", "P16_3", "P16_4", "P16_5", "P16_6", "P16_7", > + "P17_0", "P17_1", "P17_2", "P17_3", "P17_4", "P17_5", "P17_6", "P17_7", > + "P18_0", "P18_1", "P18_2", "P18_3", "P18_4", "P18_5", "P18_6", "P18_7", > + "P19_0", "P19_1", "P19_2", "P19_3", "P19_4", "P19_5", "P19_6", "P19_7", > + "P20_0", "P20_1", "P20_2", "P20_3", "P20_4", "P20_5", "P20_6", "P20_7", > + "P21_0", "P21_1", "P21_2", "P21_3", "P21_4", "P21_5", "P21_6", "P21_7", > + "P22_0", "P22_1", "P22_2", "P22_3", "P22_4", "P22_5", "P22_6", "P22_7", > + "P23_0", "P23_1", "P23_2", "P23_3", "P23_4", "P23_5", "P23_6", "P23_7", > + "P24_0", "P24_1", "P24_2", "P24_3", "P24_4", "P24_5", "P24_6", "P24_7", > + "P25_0", "P25_1", "P25_2", "P25_3", "P25_4", "P25_5", "P25_6", "P25_7", > + "P26_0", "P26_1", "P26_2", "P26_3", "P26_4", "P26_5", "P26_6", "P26_7", > + "P27_0", "P27_1", "P27_2", "P27_3", "P27_4", "P27_5", "P27_6", "P27_7", > + "P28_0", "P28_1", "P28_2", "P28_3", "P28_4", "P28_5", "P28_6", "P28_7", > + "P29_0", "P29_1", "P29_2", "P29_3", "P29_4", "P29_5", "P29_6", "P29_7", > + "P30_0", "P30_1", "P30_2", "P30_3", "P30_4", "P30_5", "P30_6", "P30_7", > + "P31_0", "P31_1", "P31_2", "P31_3", "P31_4", "P31_5", "P31_6", "P31_7", > + "P32_0", "P32_1", "P32_2", "P32_3", "P32_4", "P32_5", "P32_6", "P32_7", > + "P33_0", "P33_1", "P33_2", "P33_3", "P33_4", "P33_5", "P33_6", "P33_7", > + "P34_0", "P34_1", "P34_2", "P34_3", "P34_4", "P34_5", "P34_6", "P34_7", > + "P35_0", "P35_1", "P35_2", "P35_3", "P35_4", "P35_5", "P35_6", "P35_7", > + "P36_0", "P36_1", "P36_2", "P36_3", "P36_4", "P36_5", "P36_6", "P36_7", > + "P37_0", "P37_1", "P37_2", "P37_3", "P37_4", "P37_5", "P37_6", "P37_7", > + "P38_0", "P38_1", "P38_2", "P38_3", "P38_4", "P38_5", "P38_6", "P38_7", > + "P39_0", "P39_1", "P39_2", "P39_3", "P39_4", "P39_5", "P39_6", "P39_7", > + "P40_0", "P40_1", "P40_2", "P40_3", "P40_4", "P40_5", "P40_6", "P40_7", > + "P41_0", "P41_1", "P41_2", "P41_3", "P41_4", "P41_5", "P41_6", "P41_7", > + "P42_0", "P42_1", "P42_2", "P42_3", "P42_4", "P42_5", "P42_6", "P42_7", > + "P43_0", "P43_1", "P43_2", "P43_3", "P43_4", "P43_5", "P43_6", "P43_7", > + "P44_0", "P44_1", "P44_2", "P44_3", "P44_4", "P44_5", "P44_6", "P44_7", > + "P45_0", "P45_1", "P45_2", "P45_3", "P45_4", "P45_5", "P45_6", "P45_7", > + "P46_0", "P46_1", "P46_2", "P46_3", "P46_4", "P46_5", "P46_6", "P46_7", > + "P47_0", "P47_1", "P47_2", "P47_3", "P47_4", "P47_5", "P47_6", "P47_7", > + "P48_0", "P48_1", "P48_2", "P48_3", "P48_4", "P48_5", "P48_6", "P48_7", > +}; > + > +static const u32 rzg2l_gpio_configs[] = { > + RZG2L_GPIO_PORT_PACK(2, 0x10, RZG2L_MULTIPLEXED_PIN_FUNCS), > + RZG2L_GPIO_PORT_PACK(2, 0x11, RZG2L_MULTIPLEXED_PIN_FUNCS), > + RZG2L_GPIO_PORT_PACK(2, 0x12, RZG2L_MULTIPLEXED_PIN_FUNCS), > + RZG2L_GPIO_PORT_PACK(2, 0x13, RZG2L_MULTIPLEXED_PIN_FUNCS), > + RZG2L_GPIO_PORT_PACK(2, 0x14, RZG2L_MULTIPLEXED_PIN_FUNCS), > + RZG2L_GPIO_PORT_PACK(3, 0x15, RZG2L_MULTIPLEXED_PIN_FUNCS), > + RZG2L_GPIO_PORT_PACK(2, 0x16, RZG2L_MULTIPLEXED_PIN_FUNCS), > + RZG2L_GPIO_PORT_PACK(3, 0x17, RZG2L_MULTIPLEXED_PIN_FUNCS), > + RZG2L_GPIO_PORT_PACK(3, 0x18, RZG2L_MULTIPLEXED_PIN_FUNCS), > + RZG2L_GPIO_PORT_PACK(2, 0x19, RZG2L_MULTIPLEXED_PIN_FUNCS), > + RZG2L_GPIO_PORT_PACK(2, 0x1a, RZG2L_MULTIPLEXED_PIN_FUNCS), > + RZG2L_GPIO_PORT_PACK(2, 0x1b, RZG2L_MULTIPLEXED_PIN_FUNCS), > + RZG2L_GPIO_PORT_PACK(2, 0x1c, RZG2L_MULTIPLEXED_PIN_FUNCS), > + RZG2L_GPIO_PORT_PACK(3, 0x1d, RZG2L_MULTIPLEXED_PIN_FUNCS), > + RZG2L_GPIO_PORT_PACK(2, 0x1e, RZG2L_MULTIPLEXED_PIN_FUNCS), > + RZG2L_GPIO_PORT_PACK(2, 0x1f, RZG2L_MULTIPLEXED_PIN_FUNCS), > + RZG2L_GPIO_PORT_PACK(2, 0x20, RZG2L_MULTIPLEXED_PIN_FUNCS), > + RZG2L_GPIO_PORT_PACK(3, 0x22, RZG2L_MULTIPLEXED_PIN_FUNCS), > + RZG2L_GPIO_PORT_PACK(2, 0x22, RZG2L_MULTIPLEXED_PIN_FUNCS), > + RZG2L_GPIO_PORT_PACK(2, 0x23, RZG2L_MULTIPLEXED_PIN_FUNCS), > + RZG2L_GPIO_PORT_PACK(3, 0x24, RZG2L_MULTIPLEXED_ETH_PIN_FUNCS(PIN_CFG_IO_VOLTAGE_ETH0)), > + RZG2L_GPIO_PORT_PACK(2, 0x25, RZG2L_MULTIPLEXED_ETH_PIN_FUNCS(PIN_CFG_IO_VOLTAGE_ETH0)), > + RZG2L_GPIO_PORT_PACK(2, 0x26, RZG2L_MULTIPLEXED_ETH_PIN_FUNCS(PIN_CFG_IO_VOLTAGE_ETH0)), > + RZG2L_GPIO_PORT_PACK(2, 0x27, RZG2L_MULTIPLEXED_ETH_PIN_FUNCS(PIN_CFG_IO_VOLTAGE_ETH0)), > + RZG2L_GPIO_PORT_PACK(2, 0x28, RZG2L_MULTIPLEXED_ETH_PIN_FUNCS(PIN_CFG_IO_VOLTAGE_ETH0)), > + RZG2L_GPIO_PORT_PACK(2, 0x29, RZG2L_MULTIPLEXED_ETH_PIN_FUNCS(PIN_CFG_IO_VOLTAGE_ETH0)), > + RZG2L_GPIO_PORT_PACK(2, 0x2a, RZG2L_MULTIPLEXED_ETH_PIN_FUNCS(PIN_CFG_IO_VOLTAGE_ETH0)), > + RZG2L_GPIO_PORT_PACK(2, 0x2b, RZG2L_MULTIPLEXED_ETH_PIN_FUNCS(PIN_CFG_IO_VOLTAGE_ETH0)), > + RZG2L_GPIO_PORT_PACK(2, 0x2c, RZG2L_MULTIPLEXED_ETH_PIN_FUNCS(PIN_CFG_IO_VOLTAGE_ETH0)), > + RZG2L_GPIO_PORT_PACK(2, 0x2d, RZG2L_MULTIPLEXED_ETH_PIN_FUNCS(PIN_CFG_IO_VOLTAGE_ETH1)), > + RZG2L_GPIO_PORT_PACK(2, 0x2e, RZG2L_MULTIPLEXED_ETH_PIN_FUNCS(PIN_CFG_IO_VOLTAGE_ETH1)), > + RZG2L_GPIO_PORT_PACK(2, 0x2f, RZG2L_MULTIPLEXED_ETH_PIN_FUNCS(PIN_CFG_IO_VOLTAGE_ETH1)), > + RZG2L_GPIO_PORT_PACK(2, 0x30, RZG2L_MULTIPLEXED_ETH_PIN_FUNCS(PIN_CFG_IO_VOLTAGE_ETH1)), > + RZG2L_GPIO_PORT_PACK(2, 0x31, RZG2L_MULTIPLEXED_ETH_PIN_FUNCS(PIN_CFG_IO_VOLTAGE_ETH1)), > + RZG2L_GPIO_PORT_PACK(2, 0x32, RZG2L_MULTIPLEXED_ETH_PIN_FUNCS(PIN_CFG_IO_VOLTAGE_ETH1)), > + RZG2L_GPIO_PORT_PACK(2, 0x33, RZG2L_MULTIPLEXED_ETH_PIN_FUNCS(PIN_CFG_IO_VOLTAGE_ETH1)), > + RZG2L_GPIO_PORT_PACK(2, 0x34, RZG2L_MULTIPLEXED_ETH_PIN_FUNCS(PIN_CFG_IO_VOLTAGE_ETH1)), > + RZG2L_GPIO_PORT_PACK(3, 0x35, RZG2L_MULTIPLEXED_ETH_PIN_FUNCS(PIN_CFG_IO_VOLTAGE_ETH1)), > + RZG2L_GPIO_PORT_PACK(2, 0x36, RZG2L_MULTIPLEXED_PIN_FUNCS), > + RZG2L_GPIO_PORT_PACK(3, 0x37, RZG2L_MULTIPLEXED_PIN_FUNCS), > + RZG2L_GPIO_PORT_PACK(3, 0x38, RZG2L_MULTIPLEXED_PIN_FUNCS), > + RZG2L_GPIO_PORT_PACK(2, 0x39, RZG2L_MULTIPLEXED_PIN_FUNCS), > + RZG2L_GPIO_PORT_PACK(5, 0x3a, RZG2L_MULTIPLEXED_PIN_FUNCS), > + RZG2L_GPIO_PORT_PACK(4, 0x3b, RZG2L_MULTIPLEXED_PIN_FUNCS), > + RZG2L_GPIO_PORT_PACK(4, 0x3c, RZG2L_MULTIPLEXED_PIN_FUNCS), > + RZG2L_GPIO_PORT_PACK(4, 0x3d, RZG2L_MULTIPLEXED_PIN_FUNCS), > + RZG2L_GPIO_PORT_PACK(4, 0x3e, RZG2L_MULTIPLEXED_PIN_FUNCS), > + RZG2L_GPIO_PORT_PACK(4, 0x3f, RZG2L_MULTIPLEXED_PIN_FUNCS), > + RZG2L_GPIO_PORT_PACK(5, 0x40, RZG2L_MULTIPLEXED_PIN_FUNCS), > +}; > + > +static struct rzg2l_dedicated_configs rzg2l_dedicated_pins[] = { > + { "NMI", RZG2L_DEDICIATED_PIN_PACK(0x1, 0, (PIN_CFG_FILONOFF | > + PIN_CFG_FILNUM | > + PIN_CFG_FILCLKSEL)) }, > + { "TMS/SWDIO", RZG2L_DEDICIATED_PIN_PACK(0x2, 0, (PIN_CFG_SLEW_RATE | > + PIN_CFG_DRIVE_STRENGTH | > + PIN_CFG_INPUT_ENABLE))}, > + { "TDO", RZG2L_DEDICIATED_PIN_PACK(0x3, 0, (PIN_CFG_DRIVE_STRENGTH | > + PIN_CFG_SLEW_RATE | > + PIN_CFG_INPUT_ENABLE))}, > + { "AUDIO_CLK1", RZG2L_DEDICIATED_PIN_PACK(0x4, 0, PIN_CFG_INPUT_ENABLE)}, > + { "AUDIO_CLK2", RZG2L_DEDICIATED_PIN_PACK(0x4, 1, PIN_CFG_INPUT_ENABLE)}, > + { "SD0_CLK", RZG2L_DEDICIATED_PIN_PACK(0x6, 0, (PIN_CFG_DRIVE_STRENGTH | > + PIN_CFG_SLEW_RATE | > + PIN_CFG_IO_VOLTAGE_SD0))}, > + { "SD0_CMD", RZG2L_DEDICIATED_PIN_PACK(0x6, 1, (PIN_CFG_DRIVE_STRENGTH | > + PIN_CFG_SLEW_RATE | > + PIN_CFG_INPUT_ENABLE | > + PIN_CFG_IO_VOLTAGE_SD0))}, > + { "SD0_RST", RZG2L_DEDICIATED_PIN_PACK(0x6, 2, (PIN_CFG_DRIVE_STRENGTH | > + PIN_CFG_SLEW_RATE | > + PIN_CFG_IO_VOLTAGE_SD0))}, > + { "SD0_DATA0", RZG2L_DEDICIATED_PIN_PACK(0x7, 0, (PIN_CFG_DRIVE_STRENGTH | > + PIN_CFG_SLEW_RATE | > + PIN_CFG_INPUT_ENABLE | > + PIN_CFG_IO_VOLTAGE_SD0))}, > + { "SD0_DATA1", RZG2L_DEDICIATED_PIN_PACK(0x7, 1, (PIN_CFG_DRIVE_STRENGTH | > + PIN_CFG_SLEW_RATE | > + PIN_CFG_INPUT_ENABLE | > + PIN_CFG_IO_VOLTAGE_SD0))}, > + { "SD0_DATA2", RZG2L_DEDICIATED_PIN_PACK(0x7, 2, (PIN_CFG_DRIVE_STRENGTH | > + PIN_CFG_SLEW_RATE | > + PIN_CFG_INPUT_ENABLE | > + PIN_CFG_IO_VOLTAGE_SD0))}, > + { "SD0_DATA3", RZG2L_DEDICIATED_PIN_PACK(0x7, 3, (PIN_CFG_DRIVE_STRENGTH | > + PIN_CFG_SLEW_RATE | > + PIN_CFG_INPUT_ENABLE | > + PIN_CFG_IO_VOLTAGE_SD0))}, > + { "SD0_DATA4", RZG2L_DEDICIATED_PIN_PACK(0x7, 4, (PIN_CFG_DRIVE_STRENGTH | > + PIN_CFG_SLEW_RATE | > + PIN_CFG_INPUT_ENABLE | > + PIN_CFG_IO_VOLTAGE_SD0))}, > + { "SD0_DATA5", RZG2L_DEDICIATED_PIN_PACK(0x7, 5, (PIN_CFG_DRIVE_STRENGTH | > + PIN_CFG_SLEW_RATE | > + PIN_CFG_INPUT_ENABLE | > + PIN_CFG_IO_VOLTAGE_SD0))}, > + { "SD0_DATA6", RZG2L_DEDICIATED_PIN_PACK(0x7, 6, (PIN_CFG_DRIVE_STRENGTH | > + PIN_CFG_SLEW_RATE | > + PIN_CFG_INPUT_ENABLE | > + PIN_CFG_IO_VOLTAGE_SD0))}, > + { "SD0_DATA7", RZG2L_DEDICIATED_PIN_PACK(0x7, 7, (PIN_CFG_DRIVE_STRENGTH | > + PIN_CFG_SLEW_RATE | > + PIN_CFG_INPUT_ENABLE | > + PIN_CFG_IO_VOLTAGE_SD0))}, > + { "SD1_CLK", RZG2L_DEDICIATED_PIN_PACK(0x8, 0, (PIN_CFG_DRIVE_STRENGTH | > + PIN_CFG_SLEW_RATE | > + PIN_CFG_IO_VOLTAGE_SD1))}, > + { "SD1_CMD", RZG2L_DEDICIATED_PIN_PACK(0x8, 1, (PIN_CFG_DRIVE_STRENGTH | > + PIN_CFG_SLEW_RATE | > + PIN_CFG_INPUT_ENABLE | > + PIN_CFG_IO_VOLTAGE_SD1))}, > + { "SD1_DATA0", RZG2L_DEDICIATED_PIN_PACK(0x9, 0, (PIN_CFG_DRIVE_STRENGTH | > + PIN_CFG_SLEW_RATE | > + PIN_CFG_INPUT_ENABLE | > + PIN_CFG_IO_VOLTAGE_SD1))}, > + { "SD1_DATA1", RZG2L_DEDICIATED_PIN_PACK(0x9, 1, (PIN_CFG_DRIVE_STRENGTH | > + PIN_CFG_SLEW_RATE | > + PIN_CFG_INPUT_ENABLE | > + PIN_CFG_IO_VOLTAGE_SD1))}, > + { "SD1_DATA2", RZG2L_DEDICIATED_PIN_PACK(0x9, 2, (PIN_CFG_DRIVE_STRENGTH | > + PIN_CFG_SLEW_RATE | > + PIN_CFG_INPUT_ENABLE | > + PIN_CFG_IO_VOLTAGE_SD1))}, > + { "SD1_DATA3", RZG2L_DEDICIATED_PIN_PACK(0x9, 3, (PIN_CFG_DRIVE_STRENGTH | > + PIN_CFG_SLEW_RATE | > + PIN_CFG_INPUT_ENABLE | > + PIN_CFG_IO_VOLTAGE_SD1))}, > + { "QSPI0_SPCLK", RZG2L_DEDICIATED_PIN_PACK(0xa, 0, (PIN_CFG_DRIVE_STRENGTH | > + PIN_CFG_SLEW_RATE | > + PIN_CFG_IO_VOLTAGE_QSPI))}, > + { "QSPI0_IO0", RZG2L_DEDICIATED_PIN_PACK(0xa, 1, (PIN_CFG_DRIVE_STRENGTH | > + PIN_CFG_SLEW_RATE | > + PIN_CFG_IO_VOLTAGE_QSPI))}, > + { "QSPI0_IO1", RZG2L_DEDICIATED_PIN_PACK(0xa, 2, (PIN_CFG_DRIVE_STRENGTH | > + PIN_CFG_SLEW_RATE | > + PIN_CFG_IO_VOLTAGE_QSPI))}, > + { "QSPI0_IO2", RZG2L_DEDICIATED_PIN_PACK(0xa, 3, (PIN_CFG_DRIVE_STRENGTH | > + PIN_CFG_SLEW_RATE | > + PIN_CFG_IO_VOLTAGE_QSPI))}, > + { "QSPI0_IO3", RZG2L_DEDICIATED_PIN_PACK(0xa, 4, (PIN_CFG_DRIVE_STRENGTH | > + PIN_CFG_SLEW_RATE | > + PIN_CFG_IO_VOLTAGE_QSPI))}, > + { "QSPI0_SSL", RZG2L_DEDICIATED_PIN_PACK(0xa, 5, (PIN_CFG_DRIVE_STRENGTH | > + PIN_CFG_SLEW_RATE | > + PIN_CFG_IO_VOLTAGE_QSPI))}, > + { "QSPI1_SPCLK", RZG2L_DEDICIATED_PIN_PACK(0xb, 0, (PIN_CFG_DRIVE_STRENGTH | > + PIN_CFG_SLEW_RATE | > + PIN_CFG_IO_VOLTAGE_QSPI))}, > + { "QSPI1_IO0", RZG2L_DEDICIATED_PIN_PACK(0xb, 1, (PIN_CFG_DRIVE_STRENGTH | > + PIN_CFG_SLEW_RATE | > + PIN_CFG_IO_VOLTAGE_QSPI))}, > + { "QSPI1_1", RZG2L_DEDICIATED_PIN_PACK(0xb, 2, (PIN_CFG_DRIVE_STRENGTH | > + PIN_CFG_SLEW_RATE | > + PIN_CFG_IO_VOLTAGE_QSPI))}, > + { "QSPI1_IO2", RZG2L_DEDICIATED_PIN_PACK(0xb, 3, (PIN_CFG_DRIVE_STRENGTH | > + PIN_CFG_SLEW_RATE | > + PIN_CFG_IO_VOLTAGE_QSPI))}, > + { "QSPI1_IO3", RZG2L_DEDICIATED_PIN_PACK(0xb, 4, (PIN_CFG_DRIVE_STRENGTH | > + PIN_CFG_SLEW_RATE | > + PIN_CFG_IO_VOLTAGE_QSPI))}, > + { "QSPI1_SSL", RZG2L_DEDICIATED_PIN_PACK(0xb, 5, (PIN_CFG_DRIVE_STRENGTH | > + PIN_CFG_SLEW_RATE | > + PIN_CFG_IO_VOLTAGE_QSPI))}, > + { "QSPI_RESET", RZG2L_DEDICIATED_PIN_PACK(0xc, 0, (PIN_CFG_DRIVE_STRENGTH | > + PIN_CFG_SLEW_RATE | > + PIN_CFG_IO_VOLTAGE_QSPI))}, > + { "QSPI_WP", RZG2L_DEDICIATED_PIN_PACK(0xc, 1, (PIN_CFG_DRIVE_STRENGTH | > + PIN_CFG_SLEW_RATE | > + PIN_CFG_IO_VOLTAGE_QSPI))}, > + { "QSPI_INT", RZG2L_DEDICIATED_PIN_PACK(0xc, 2, (PIN_CFG_DRIVE_STRENGTH | > + PIN_CFG_SLEW_RATE | > + PIN_CFG_IO_VOLTAGE_QSPI))}, > + { "WDTOVF_PERROUT", RZG2L_DEDICIATED_PIN_PACK(0xd, 0, (PIN_CFG_DRIVE_STRENGTH | > + PIN_CFG_SLEW_RATE))}, > + { "RIIC0_SDA", RZG2L_DEDICIATED_PIN_PACK(0xe, 0, PIN_CFG_INPUT_ENABLE)}, > + { "RIIC0_SCL", RZG2L_DEDICIATED_PIN_PACK(0xe, 1, PIN_CFG_INPUT_ENABLE)}, > + { "RIIC1_SDA", RZG2L_DEDICIATED_PIN_PACK(0xe, 2, PIN_CFG_INPUT_ENABLE)}, > + { "RIIC1_SCL", RZG2L_DEDICIATED_PIN_PACK(0xe, 3, PIN_CFG_INPUT_ENABLE)}, > +}; > + > +static int rzg2l_gpio_register(struct rzg2l_pinctrl *pctrl) > +{ > + struct device_node *np = pctrl->dev->of_node; > + struct gpio_chip *chip = &pctrl->gpio_chip; > + const char *name = dev_name(pctrl->dev); > + struct of_phandle_args of_args; > + int ret; > + > + ret = of_parse_phandle_with_fixed_args(np, "gpio-ranges", 3, 0, &of_args); > + if (ret) { > + dev_err(pctrl->dev, "Unable to parse gpio-ranges\n"); > + return ret; > + } > + > + if (of_args.args[0] != 0 || of_args.args[1] != 0 || > + of_args.args[2] != ARRAY_SIZE(rzg2l_gpio_names)) { > + dev_err(pctrl->dev, "gpio-ranges does not match selected SOC\n"); > + return -EINVAL; > + } > + > + chip->names = rzg2l_gpio_names; > + chip->request = rzg2l_gpio_request; > + chip->free = rzg2l_gpio_free; > + chip->get_direction = rzg2l_gpio_get_direction; > + chip->direction_input = rzg2l_gpio_direction_input; > + chip->direction_output = rzg2l_gpio_direction_output; > + chip->get = rzg2l_gpio_get; > + chip->set = rzg2l_gpio_set; > + chip->label = name; > + chip->parent = pctrl->dev; > + chip->owner = THIS_MODULE; > + chip->base = -1; > + chip->ngpio = of_args.args[2]; > + > + pctrl->gpio_range.id = 0; > + pctrl->gpio_range.pin_base = 0; > + pctrl->gpio_range.base = 0; > + pctrl->gpio_range.npins = chip->ngpio; > + pctrl->gpio_range.name = chip->label; > + pctrl->gpio_range.gc = chip; > + ret = devm_gpiochip_add_data(pctrl->dev, chip, pctrl); > + if (ret) { > + dev_err(pctrl->dev, "failed to add GPIO controller\n"); > + return ret; > + } > + > + dev_dbg(pctrl->dev, "Registered gpio controller\n"); > + > + return 0; > +} > + > +static int rzg2l_pinctrl_register(struct rzg2l_pinctrl *pctrl) > +{ > + struct pinctrl_pin_desc *pins; > + unsigned int *pin_data; > + unsigned int i, j; > + int ret; > + > + pctrl->desc.name = DRV_NAME; > + pctrl->desc.npins = pctrl->data->n_port_pins + pctrl->data->n_dedicated_pins; > + pctrl->desc.pctlops = &rzg2l_pinctrl_pctlops; > + pctrl->desc.pmxops = &rzg2l_pinctrl_pmxops; > + pctrl->desc.confops = &rzg2l_pinctrl_confops; > + pctrl->desc.owner = THIS_MODULE; > + > + pins = devm_kcalloc(pctrl->dev, pctrl->desc.npins, sizeof(*pins), GFP_KERNEL); > + if (!pins) > + return -ENOMEM; > + > + pin_data = devm_kcalloc(pctrl->dev, pctrl->desc.npins, > + sizeof(unsigned int), GFP_KERNEL); > + if (!pin_data) > + return -ENOMEM; > + > + pctrl->pins = pins; > + pctrl->desc.pins = pins; > + > + for (i = 0, j = 0; i < pctrl->data->n_port_pins; i++) { > + pins[i].number = i; > + pins[i].name = pctrl->data->port_pins[i]; > + if (i && !(i % RZG2L_PINS_PER_PORT)) > + j++; > + pin_data[i] = pctrl->data->port_pin_configs[j]; > + pins[i].drv_data = &pin_data[i]; > + } > + > + for (i = 0; i < pctrl->data->n_dedicated_pins; i++) { > + unsigned int index = pctrl->data->n_port_pins + i; > + > + pins[index].number = index; > + pins[index].name = pctrl->data->dedicated_pins[i].name; > + pin_data[index] = pctrl->data->dedicated_pins[i].config; > + pins[index].drv_data = &pin_data[index]; > + } > + > + ret = devm_pinctrl_register_and_init(pctrl->dev, &pctrl->desc, pctrl, > + &pctrl->pctl); > + if (ret) { > + dev_err(pctrl->dev, "pinctrl registration failed\n"); > + return ret; > + } > + > + ret = pinctrl_enable(pctrl->pctl); > + if (ret) { > + dev_err(pctrl->dev, "pinctrl enable failed\n"); > + return ret; > + } > + > + ret = rzg2l_gpio_register(pctrl); > + if (ret) { > + dev_err(pctrl->dev, "failed to add GPIO chip: %i\n", ret); > + return ret; > + }; > + > + return 0; > +} > + > +static int rzg2l_pinctrl_probe(struct platform_device *pdev) > +{ > + struct rzg2l_pinctrl *pctrl; > + int ret; > + > + pctrl = devm_kzalloc(&pdev->dev, sizeof(*pctrl), GFP_KERNEL); > + if (!pctrl) > + return -ENOMEM; > + > + pctrl->dev = &pdev->dev; > + > + pctrl->data = of_device_get_match_data(&pdev->dev); > + if (!pctrl->data) > + return -EINVAL; > + > + pctrl->base = devm_platform_ioremap_resource(pdev, 0); > + if (IS_ERR(pctrl->base)) > + return PTR_ERR(pctrl->base); > + > + pctrl->clk = devm_clk_get(pctrl->dev, NULL); > + if (IS_ERR(pctrl->clk)) { > + ret = PTR_ERR(pctrl->clk); > + dev_err(pctrl->dev, "failed to get GPIO clk : %i\n", ret); > + return ret; > + }; > + > + spin_lock_init(&pctrl->lock); > + > + ret = rzg2l_pinctrl_register(pctrl); > + if (ret) > + return ret; > + > + ret = clk_prepare_enable(pctrl->clk); > + if (ret) { > + dev_err(pctrl->dev, "failed to enable GPIO clk: %i\n", ret); > + return ret; > + }; > + > + platform_set_drvdata(pdev, pctrl); > + > + dev_info(pctrl->dev, "%s support registered\n", DRV_NAME); > + return 0; > +} > + > +static struct rzg2l_pinctrl_data r9a07g044_data = { > + .port_pins = rzg2l_gpio_names, > + .port_pin_configs = rzg2l_gpio_configs, > + .dedicated_pins = rzg2l_dedicated_pins, > + .n_port_pins = ARRAY_SIZE(rzg2l_gpio_names), > + .n_dedicated_pins = ARRAY_SIZE(rzg2l_dedicated_pins), > +}; > + > +static const struct of_device_id rzg2l_pinctrl_of_table[] = { > + { > + .compatible = "renesas,r9a07g044-pinctrl", > + .data = &r9a07g044_data, > + }, > + { /* sentinel */ } > +}; > + > +static struct platform_driver rzg2l_pinctrl_driver = { > + .driver = { > + .name = DRV_NAME, > + .of_match_table = of_match_ptr(rzg2l_pinctrl_of_table), > + }, > + .probe = rzg2l_pinctrl_probe, > +}; > + > +static int __init rzg2l_pinctrl_init(void) > +{ > + return platform_driver_register(&rzg2l_pinctrl_driver); > +} > +core_initcall(rzg2l_pinctrl_init); > + > +MODULE_AUTHOR("Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>"); > +MODULE_DESCRIPTION("Pin and gpio controller driver for RZ/G2L family"); > +MODULE_LICENSE("GPL v2"); > -- > 2.17.1 > -- Gr{oetje,eeting}s, Geert -- Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@linux-m68k.org In personal conversations with technical people, I call myself a hacker. But when I'm talking to journalists I just say "programmer" or something like that. -- Linus Torvalds
Hi Geert, Thank you for the review. On Tue, Jul 20, 2021 at 3:57 PM Geert Uytterhoeven <geert@linux-m68k.org> wrote: > > Hi Prabhakar, > > On Mon, Jul 12, 2021 at 9:44 PM Lad Prabhakar > <prabhakar.mahadev-lad.rj@bp.renesas.com> wrote: > > > > Add support for pin and gpio controller driver for RZ/G2L SoC. > > > > Based on a patch in the BSP by Hien Huynh <hien.huynh.px@renesas.com>. > > > > Signed-off-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com> > > Reviewed-by: Biju Das <biju.das.jz@bp.renesas.com> > > Thanks for your patch! > > BTW, I assume GPIO interrupt handling needs another block on top, > like on RZ/A using renesas,rza1-irqc? > Yes, irq pin handling should be almost identical to renesas,rza1-irqc but the GPIO irq handling will be something which needs modelling. > > --- a/drivers/pinctrl/renesas/Kconfig > > +++ b/drivers/pinctrl/renesas/Kconfig > > @@ -176,6 +176,17 @@ config PINCTRL_RZA2 > > help > > This selects GPIO and pinctrl driver for Renesas RZ/A2 platforms. > > > > +config PINCTRL_RZG2L > > + bool "pin control support for RZ/G2L" > > + depends on OF > > + depends on ARCH_R9A07G044 || COMPILE_TEST > > + select GPIOLIB > > + select GENERIC_PINCTRL_GROUPS > > + select GENERIC_PINMUX_FUNCTIONS > > + select GENERIC_PINCONF > > + help > > + This selects GPIO and pinctrl driver for Renesas RZ/G2L platforms. > > + > > config PINCTRL_PFC_R8A77470 > > bool "pin control support for RZ/G1C" if COMPILE_TEST > > select PINCTRL_SH_PFC > > Do you want pin control for RZ/G2L to be optional (like RZ/A and RZ/N), > or mandatory (like R-Car and RZ/G2[HMNE])? > With the above, it is optional. > To keep in sync with RZ/G2 i'll replace it with below and add a line (select PINCTRL_RZG2L if ARCH_R9A07G044) in PINCTRL_RENESAS config PINCTRL_RZG2L bool "pin control support for RZ/G2L" if COMPILE_TEST depends on OF select GPIOLIB select GENERIC_PINCTRL_GROUPS select GENERIC_PINMUX_FUNCTIONS select GENERIC_PINCONF help This selects GPIO and pinctrl driver for Renesas RZ/G2L platforms. > > --- /dev/null > > +++ b/drivers/pinctrl/renesas/pinctrl-rzg2l.c > > > +#define RZG2L_MULTIPLEXED_PIN_FUNCS (PIN_CFG_DRIVE_STRENGTH | \ > > + PIN_CFG_SLEW_RATE | \ > > + PIN_CFG_PULL_UP_DOWN | \ > > + PIN_CFG_FILONOFF | \ > > + PIN_CFG_FILNUM | \ > > + PIN_CFG_FILCLKSEL) > > + > > +#define RZG2L_MULTIPLEXED_ETH_PIN_FUNCS(x) ((x) | \ > > + PIN_CFG_FILONOFF | \ > > + PIN_CFG_FILNUM | \ > > + PIN_CFG_FILCLKSEL) > > s/MULTIPLEXED/MPXED/? Or MULTI? > Will go with MULTI > > + > > +/* > > + * n indicates number of pins in the port, a is the register index > > + * and f is pin configuration capabilities supported. > > + */ > > +#define RZG2L_GPIO_PORT_PACK(n, a, f) (((n) << 28) | ((a) << 20) | (f)) > > +#define RZG2L_GPIO_PORT_GET_PINCNT(x) ((((x) & ~GENMASK(28, 0)) >> 28) & 0x7) > > Can't the "& ~GENMASK(28, 0)" be dropped? > agreed, dropped it. > > +#define RZG2L_GPIO_PORT_GET_INDEX(x) ((((x) & ~GENMASK(19, 0) & ~GENMASK(31, 28)) >> 20) & 0x7f) > > "& GENMASK(27, 20)"? > agreed, replaced it with the above. > > +#define RZG2L_GPIO_PORT_GET_CFGS(x) ((x) & ~GENMASK(31, 20)) > > "& GENMASK(19, 0)"? > agreed, replaced it with the above. > > + > > +/* > > + * BIT(31) indicates as dedicated pin, p is the register index while > > + * referencing to SR/IEN/IOLH/FILxx registers, b is the register bits > > + * (b * 8) and f is the pin configuration capabilities supported. > > + */ > > +#define RZG2L_DEDICIATED_PIN BIT(31) > > +#define RZG2L_DEDICIATED_PIN_PACK(p, b, f) (RZG2L_DEDICIATED_PIN | \ > > + ((p) << 24) | ((b) << 20) | (f)) > > +#define RZG2L_DEDICIATED_PIN_GET_PORT(x) ((((x) & ~GENMASK(23, 0)) >> 24) & 0x7f) > > +#define RZG2L_DEDICIATED_PIN_GET_BIT(x) ((((x) & ~GENMASK(19, 0)) >> 20) & 0x7) > > +#define RZG2L_DEDICIATED_PIN_GET_CFGS(x) ((x) & ~GENMASK(31, 20)) > > DEDICATED? Or SINGLE (cfr. R-Car)? > Agreed will go with SINGLE. and to be in sync will replace with the below: #define RZG2L_SINGLE_PIN_GET_PORT(x) (((x) >> 24) & 0x7f) #define RZG2L_SINGLE_PIN_GET_BIT(x) ((((x) & GENMASK(23, 20)) >> 20) & 0x7) #define RZG2L_SINGLE_PIN_GET_CFGS(x) ((x) & GENMASK(19, 0)) > > + > > +#define P(n) (0x0000 + 0x10 + (n)) > > +#define PM(n) (0x0100 + 0x20 + (n) * 2) > > +#define PMC(n) (0x0200 + 0x10 + (n)) > > +#define PFC(n) (0x0400 + 0x40 + (n) * 4) > > +#define PIN(n) (0x0800 + 0x10 + (n)) > > +#define IEN(n) (0x1800 + (n) * 8) > > +#define PWPR (0x3014) > > +#define SD_CH(n) (0x3000 + (n) * 4) > > + > > +#define PVDD_1800 1 /* I/O domain voltage <= 1.8V */ > > +#define PVDD_3300 0 /* I/O domain voltage >= 3.3V */ > > What's the meaning of the "<=" and ">=" in the comments? > That was just picked from the HW manual (page 3023). Said that it doesn't add much value so will drop the comment. > > + > > +#define PWPR_B0WI BIT(7) /* Bit Write Disable */ > > +#define PWPR_PFCWE BIT(6) /* PFC Register Write Enable */ > > + > > +#define PM_MASK 0x03 > > +#define PVDD_MASK 0x01 > > +#define PFC_MASK 0x07 > > +#define IEN_MASK 0x01 > > + > > +#define PM_INPUT 0x1 > > +#define PM_OUTPUT 0x2 > > + > > +#define RZG2L_PIN_ID_TO_PORT(id) ((id) / RZG2L_PINS_PER_PORT) > > +#define RZG2L_PIN_ID_TO_PIN(id) ((id) % RZG2L_PINS_PER_PORT) > > + > > +struct rzg2l_dedicated_configs { > > + const char *name; > > + unsigned int config; > > u32? > OK will replace it with u32. > > +}; > > + > > +struct rzg2l_pinctrl_data { > > + const char * const *port_pins; > > + const unsigned int *port_pin_configs; > > u32, to match rzg2l_gpio_configs[] > OK will replace it with u32. > > + struct rzg2l_dedicated_configs *dedicated_pins; > > + unsigned int n_port_pins; > > + unsigned int n_dedicated_pins; > > +}; > > + > > +struct rzg2l_pinctrl { > > + struct pinctrl_dev *pctl; > > + struct pinctrl_desc desc; > > + struct pinctrl_pin_desc *pins; > > + > > + const struct rzg2l_pinctrl_data *data; > > + void __iomem *base; > > + struct device *dev; > > + struct clk *clk; > > + > > + struct gpio_chip gpio_chip; > > + struct pinctrl_gpio_range gpio_range; > > + > > + spinlock_t lock; > > +}; > > + > > +static void rzg2l_pinctrl_set_pfc_mode(struct rzg2l_pinctrl *pctrl, > > + u8 port, u8 pin, u8 func) > > +{ > > + unsigned long flags; > > + u32 reg32; > > + u16 reg16; > > + u8 reg8; > > I think you can just use a single "u32 reg" for all register > manipulation. > OK will replace it with u32. > > +static int rzg2l_dt_subnode_to_map(struct pinctrl_dev *pctldev, > > + struct device_node *np, > > + struct pinctrl_map **map, > > + unsigned int *num_maps, > > + unsigned int *index) > > +{ > > + struct rzg2l_pinctrl *pctrl = pinctrl_dev_get_drvdata(pctldev); > > + unsigned long *configs = NULL; > > + unsigned int idx = *index; > > + struct property *pinmux; > > + unsigned int nmaps = *num_maps; > > + struct pinctrl_map *maps = *map; > > + unsigned int num_pins; > > + unsigned int num_configs; > > + unsigned int num_pinmux = 0; > > + unsigned int *pins, *psel_val; > > + int i, ret, gsel, fsel; > > unsigned int i; > Done. > > + const char **pin_fn; > > + struct property *prop; > > + const char *pin; > > [...] > > > + maps = krealloc(maps, sizeof(*maps) * nmaps, GFP_KERNEL); > > krealloc_array() > Agreed will replace it with krealloc_array(). > > +static int rzg2l_pinctrl_pinconf_get(struct pinctrl_dev *pctldev, > > + unsigned int _pin, > > + unsigned long *config) > > +{ > > + struct rzg2l_pinctrl *pctrl = pinctrl_dev_get_drvdata(pctldev); > > + enum pin_config_param param = pinconf_to_config_param(*config); > > + const struct pinctrl_pin_desc *pin = &pctrl->desc.pins[_pin]; > > + unsigned int *pin_data = pin->drv_data; > > + unsigned int arg = 0; > > + unsigned long flags; > > + void __iomem *addr; > > + u32 port = 0, reg; > > + u32 cfg = 0; > > + u8 bit = 0; > > + > > + if (!pin_data) > > + return -EINVAL; > > + > > + if (*pin_data & RZG2L_DEDICIATED_PIN) { > > + port = RZG2L_DEDICIATED_PIN_GET_PORT(*pin_data); > > + cfg = RZG2L_DEDICIATED_PIN_GET_CFGS(*pin_data); > > + bit = RZG2L_DEDICIATED_PIN_GET_BIT(*pin_data); > > + } > > + > > + switch (param) { > > + case PIN_CONFIG_INPUT_ENABLE: > > + if (!(cfg & PIN_CFG_INPUT_ENABLE)) > > + return -EINVAL; > > + spin_lock_irqsave(&pctrl->lock, flags); > > + /* handle _L/_H for 32-bit register read/write */ > > + addr = pctrl->base + IEN(port) + ((bit > 3) ? 0x4 : 0x0); > > + if (bit > 3) > > + bit -= 4; > > You can combine the two identical tests, and get rid of the 3/4 difference, > at the expense of 2 more lines: > > addr = pctrl->base + IEN(port); > if (bit >= 4) { > bit -= 4; > addr += 4; > } > Agreed will replace it with above. > > + > > + reg = readl(addr) & (IEN_MASK << (bit * 8)); > > + arg = (reg >> (bit * 8)) & 0x1; > > + spin_unlock_irqrestore(&pctrl->lock, flags); > > + break; > > + > > + case PIN_CONFIG_POWER_SOURCE: > > + if (!((cfg & PIN_CFG_IO_VOLTAGE_SD0) || (cfg & PIN_CFG_IO_VOLTAGE_SD1))) > > + return -EINVAL; > > + > > + spin_lock_irqsave(&pctrl->lock, flags); > > + addr = pctrl->base + ((cfg == PIN_CFG_IO_VOLTAGE_SD0) ? SD_CH(0) : SD_CH(1)); > > + arg = (readl(addr) & PVDD_MASK) ? 1800 : 3300; > > + spin_unlock_irqrestore(&pctrl->lock, flags); > > + break; > > + > > + default: > > + return -ENOTSUPP; > > EOPNOTSUPP > > (Checkpatch doesn't like this one, as it's only for NFSv3, apparently) > The pinctrl core checks for -ENOTSUPP (for example here https://elixir.bootlin.com/linux/latest/source/drivers/pinctrl/pinconf-generic.c#L75) > > + } > > + > > + *config = pinconf_to_config_packed(param, arg); > > + > > + return 0; > > +}; > > + > > +static int rzg2l_pinctrl_pinconf_set(struct pinctrl_dev *pctldev, > > + unsigned int _pin, > > + unsigned long *_configs, > > + unsigned int num_configs) > > +{ > > + struct rzg2l_pinctrl *pctrl = pinctrl_dev_get_drvdata(pctldev); > > + const struct pinctrl_pin_desc *pin = &pctrl->desc.pins[_pin]; > > + unsigned int *pin_data = pin->drv_data; > > + enum pin_config_param param; > > + unsigned long flags; > > + void __iomem *addr; > > + u32 port = 0, reg; > > + unsigned int i; > > + u32 cfg = 0; > > + u8 bit = 0; > > + > > + if (!pin_data) > > + return -EINVAL; > > + > > + if (*pin_data & BIT(31)) { > > RZG2L_DEDICATED_PIN > Agreed will use RZG2L_DEDICATED_PIN > > + port = RZG2L_DEDICIATED_PIN_GET_PORT(*pin_data); > > + cfg = RZG2L_DEDICIATED_PIN_GET_CFGS(*pin_data); > > + bit = RZG2L_DEDICIATED_PIN_GET_BIT(*pin_data); > > + } > > + > > + for (i = 0; i < num_configs; i++) { > > + param = pinconf_to_config_param(_configs[i]); > > + switch (param) { > > + case PIN_CONFIG_INPUT_ENABLE: { > > + unsigned int arg = > > + pinconf_to_config_argument(_configs[i]); > > + > > + if (!(cfg & PIN_CFG_INPUT_ENABLE)) > > + return -EINVAL; > > + > > + /* handle _L/_H for 32-bit register read/write */ > > + addr = pctrl->base + IEN(port) + ((bit > 3) ? 0x4 : 0x0); > > + if (bit > 3) > > + bit -= 4; > > Same here as above. > OK > > + > > + spin_lock_irqsave(&pctrl->lock, flags); > > + reg = readl(addr) & ~(IEN_MASK << (bit * 8)); > > + writel(reg | (arg << (bit * 8)), addr); > > + spin_unlock_irqrestore(&pctrl->lock, flags); > > + break; > > + } > > > > +static struct rzg2l_dedicated_configs rzg2l_dedicated_pins[] = { > > + { "NMI", RZG2L_DEDICIATED_PIN_PACK(0x1, 0, (PIN_CFG_FILONOFF | > > + PIN_CFG_FILNUM | > > + PIN_CFG_FILCLKSEL)) }, > > I would put all PIN_CFG_* on a single line, for easier review. I.e. > > { "NMI", RZG2L_DEDICIATED_PIN_PACK(0x1, 0, > (PIN_CFG_FILONOFF | PIN_CFG_FILNUM | > PIN_CFG_FILCLKSEL)) }, > > OK, I will do that. > > + { "TMS/SWDIO", RZG2L_DEDICIATED_PIN_PACK(0x2, 0, (PIN_CFG_SLEW_RATE | > > + PIN_CFG_DRIVE_STRENGTH | > > + PIN_CFG_INPUT_ENABLE))}, > > + { "TDO", RZG2L_DEDICIATED_PIN_PACK(0x3, 0, (PIN_CFG_DRIVE_STRENGTH | > > + PIN_CFG_SLEW_RATE | > > + PIN_CFG_INPUT_ENABLE))}, > > + { "AUDIO_CLK1", RZG2L_DEDICIATED_PIN_PACK(0x4, 0, PIN_CFG_INPUT_ENABLE)}, > > + { "AUDIO_CLK2", RZG2L_DEDICIATED_PIN_PACK(0x4, 1, PIN_CFG_INPUT_ENABLE)}, > > + { "SD0_CLK", RZG2L_DEDICIATED_PIN_PACK(0x6, 0, (PIN_CFG_DRIVE_STRENGTH | > > + PIN_CFG_SLEW_RATE | > > + PIN_CFG_IO_VOLTAGE_SD0))}, > > + { "SD0_CMD", RZG2L_DEDICIATED_PIN_PACK(0x6, 1, (PIN_CFG_DRIVE_STRENGTH | > > + PIN_CFG_SLEW_RATE | > > + PIN_CFG_INPUT_ENABLE | > > + PIN_CFG_IO_VOLTAGE_SD0))}, > > + { "SD0_RST", RZG2L_DEDICIATED_PIN_PACK(0x6, 2, (PIN_CFG_DRIVE_STRENGTH | > > "SD0_RST#"? > OK will add # > > + PIN_CFG_SLEW_RATE | > > + PIN_CFG_IO_VOLTAGE_SD0))}, > > + { "SD0_DATA0", RZG2L_DEDICIATED_PIN_PACK(0x7, 0, (PIN_CFG_DRIVE_STRENGTH | > > + PIN_CFG_SLEW_RATE | > > + PIN_CFG_INPUT_ENABLE | > > + PIN_CFG_IO_VOLTAGE_SD0))}, > > + { "SD0_DATA1", RZG2L_DEDICIATED_PIN_PACK(0x7, 1, (PIN_CFG_DRIVE_STRENGTH | > > + PIN_CFG_SLEW_RATE | > > + PIN_CFG_INPUT_ENABLE | > > + PIN_CFG_IO_VOLTAGE_SD0))}, > > + { "SD0_DATA2", RZG2L_DEDICIATED_PIN_PACK(0x7, 2, (PIN_CFG_DRIVE_STRENGTH | > > + PIN_CFG_SLEW_RATE | > > + PIN_CFG_INPUT_ENABLE | > > + PIN_CFG_IO_VOLTAGE_SD0))}, > > + { "SD0_DATA3", RZG2L_DEDICIATED_PIN_PACK(0x7, 3, (PIN_CFG_DRIVE_STRENGTH | > > + PIN_CFG_SLEW_RATE | > > + PIN_CFG_INPUT_ENABLE | > > + PIN_CFG_IO_VOLTAGE_SD0))}, > > + { "SD0_DATA4", RZG2L_DEDICIATED_PIN_PACK(0x7, 4, (PIN_CFG_DRIVE_STRENGTH | > > + PIN_CFG_SLEW_RATE | > > + PIN_CFG_INPUT_ENABLE | > > + PIN_CFG_IO_VOLTAGE_SD0))}, > > + { "SD0_DATA5", RZG2L_DEDICIATED_PIN_PACK(0x7, 5, (PIN_CFG_DRIVE_STRENGTH | > > + PIN_CFG_SLEW_RATE | > > + PIN_CFG_INPUT_ENABLE | > > + PIN_CFG_IO_VOLTAGE_SD0))}, > > + { "SD0_DATA6", RZG2L_DEDICIATED_PIN_PACK(0x7, 6, (PIN_CFG_DRIVE_STRENGTH | > > + PIN_CFG_SLEW_RATE | > > + PIN_CFG_INPUT_ENABLE | > > + PIN_CFG_IO_VOLTAGE_SD0))}, > > + { "SD0_DATA7", RZG2L_DEDICIATED_PIN_PACK(0x7, 7, (PIN_CFG_DRIVE_STRENGTH | > > + PIN_CFG_SLEW_RATE | > > + PIN_CFG_INPUT_ENABLE | > > + PIN_CFG_IO_VOLTAGE_SD0))}, > > + { "SD1_CLK", RZG2L_DEDICIATED_PIN_PACK(0x8, 0, (PIN_CFG_DRIVE_STRENGTH | > > + PIN_CFG_SLEW_RATE | > > + PIN_CFG_IO_VOLTAGE_SD1))}, > > + { "SD1_CMD", RZG2L_DEDICIATED_PIN_PACK(0x8, 1, (PIN_CFG_DRIVE_STRENGTH | > > + PIN_CFG_SLEW_RATE | > > + PIN_CFG_INPUT_ENABLE | > > + PIN_CFG_IO_VOLTAGE_SD1))}, > > + { "SD1_DATA0", RZG2L_DEDICIATED_PIN_PACK(0x9, 0, (PIN_CFG_DRIVE_STRENGTH | > > + PIN_CFG_SLEW_RATE | > > + PIN_CFG_INPUT_ENABLE | > > + PIN_CFG_IO_VOLTAGE_SD1))}, > > + { "SD1_DATA1", RZG2L_DEDICIATED_PIN_PACK(0x9, 1, (PIN_CFG_DRIVE_STRENGTH | > > + PIN_CFG_SLEW_RATE | > > + PIN_CFG_INPUT_ENABLE | > > + PIN_CFG_IO_VOLTAGE_SD1))}, > > + { "SD1_DATA2", RZG2L_DEDICIATED_PIN_PACK(0x9, 2, (PIN_CFG_DRIVE_STRENGTH | > > + PIN_CFG_SLEW_RATE | > > + PIN_CFG_INPUT_ENABLE | > > + PIN_CFG_IO_VOLTAGE_SD1))}, > > + { "SD1_DATA3", RZG2L_DEDICIATED_PIN_PACK(0x9, 3, (PIN_CFG_DRIVE_STRENGTH | > > + PIN_CFG_SLEW_RATE | > > + PIN_CFG_INPUT_ENABLE | > > + PIN_CFG_IO_VOLTAGE_SD1))}, > > + { "QSPI0_SPCLK", RZG2L_DEDICIATED_PIN_PACK(0xa, 0, (PIN_CFG_DRIVE_STRENGTH | > > + PIN_CFG_SLEW_RATE | > > + PIN_CFG_IO_VOLTAGE_QSPI))}, > > + { "QSPI0_IO0", RZG2L_DEDICIATED_PIN_PACK(0xa, 1, (PIN_CFG_DRIVE_STRENGTH | > > + PIN_CFG_SLEW_RATE | > > + PIN_CFG_IO_VOLTAGE_QSPI))}, > > + { "QSPI0_IO1", RZG2L_DEDICIATED_PIN_PACK(0xa, 2, (PIN_CFG_DRIVE_STRENGTH | > > + PIN_CFG_SLEW_RATE | > > + PIN_CFG_IO_VOLTAGE_QSPI))}, > > + { "QSPI0_IO2", RZG2L_DEDICIATED_PIN_PACK(0xa, 3, (PIN_CFG_DRIVE_STRENGTH | > > + PIN_CFG_SLEW_RATE | > > + PIN_CFG_IO_VOLTAGE_QSPI))}, > > + { "QSPI0_IO3", RZG2L_DEDICIATED_PIN_PACK(0xa, 4, (PIN_CFG_DRIVE_STRENGTH | > > + PIN_CFG_SLEW_RATE | > > + PIN_CFG_IO_VOLTAGE_QSPI))}, > > + { "QSPI0_SSL", RZG2L_DEDICIATED_PIN_PACK(0xa, 5, (PIN_CFG_DRIVE_STRENGTH | > > + PIN_CFG_SLEW_RATE | > > + PIN_CFG_IO_VOLTAGE_QSPI))}, > > + { "QSPI1_SPCLK", RZG2L_DEDICIATED_PIN_PACK(0xb, 0, (PIN_CFG_DRIVE_STRENGTH | > > + PIN_CFG_SLEW_RATE | > > + PIN_CFG_IO_VOLTAGE_QSPI))}, > > + { "QSPI1_IO0", RZG2L_DEDICIATED_PIN_PACK(0xb, 1, (PIN_CFG_DRIVE_STRENGTH | > > + PIN_CFG_SLEW_RATE | > > + PIN_CFG_IO_VOLTAGE_QSPI))}, > > + { "QSPI1_1", RZG2L_DEDICIATED_PIN_PACK(0xb, 2, (PIN_CFG_DRIVE_STRENGTH | > > "QSPI1_IO1" (looks like a typo in the User's Manual) > Yes will replace it with QSPI1_IO1 (next version of HW manual should have QSPI1_IO1) > > + PIN_CFG_SLEW_RATE | > > + PIN_CFG_IO_VOLTAGE_QSPI))}, > > + { "QSPI1_IO2", RZG2L_DEDICIATED_PIN_PACK(0xb, 3, (PIN_CFG_DRIVE_STRENGTH | > > + PIN_CFG_SLEW_RATE | > > + PIN_CFG_IO_VOLTAGE_QSPI))}, > > + { "QSPI1_IO3", RZG2L_DEDICIATED_PIN_PACK(0xb, 4, (PIN_CFG_DRIVE_STRENGTH | > > + PIN_CFG_SLEW_RATE | > > + PIN_CFG_IO_VOLTAGE_QSPI))}, > > + { "QSPI1_SSL", RZG2L_DEDICIATED_PIN_PACK(0xb, 5, (PIN_CFG_DRIVE_STRENGTH | > > + PIN_CFG_SLEW_RATE | > > + PIN_CFG_IO_VOLTAGE_QSPI))}, > > + { "QSPI_RESET", RZG2L_DEDICIATED_PIN_PACK(0xc, 0, (PIN_CFG_DRIVE_STRENGTH | > > "QSPI_RESET#"? > OK will add # > > + PIN_CFG_SLEW_RATE | > > + PIN_CFG_IO_VOLTAGE_QSPI))}, > > + { "QSPI_WP", RZG2L_DEDICIATED_PIN_PACK(0xc, 1, (PIN_CFG_DRIVE_STRENGTH | > > "QSPI_WP#"? > OK will add # > > + PIN_CFG_SLEW_RATE | > > + PIN_CFG_IO_VOLTAGE_QSPI))}, > > + { "QSPI_INT", RZG2L_DEDICIATED_PIN_PACK(0xc, 2, (PIN_CFG_DRIVE_STRENGTH | > > "QSPI_INT#"? > > This pin does not support drive strength. > Oops, I will drop that. > > + PIN_CFG_SLEW_RATE | > > + PIN_CFG_IO_VOLTAGE_QSPI))}, > > + { "WDTOVF_PERROUT", RZG2L_DEDICIATED_PIN_PACK(0xd, 0, (PIN_CFG_DRIVE_STRENGTH | > > "WDTOVF_PERROUT#"? > > > + PIN_CFG_SLEW_RATE))}, > > + { "RIIC0_SDA", RZG2L_DEDICIATED_PIN_PACK(0xe, 0, PIN_CFG_INPUT_ENABLE)}, > > + { "RIIC0_SCL", RZG2L_DEDICIATED_PIN_PACK(0xe, 1, PIN_CFG_INPUT_ENABLE)}, > > + { "RIIC1_SDA", RZG2L_DEDICIATED_PIN_PACK(0xe, 2, PIN_CFG_INPUT_ENABLE)}, > > + { "RIIC1_SCL", RZG2L_DEDICIATED_PIN_PACK(0xe, 3, PIN_CFG_INPUT_ENABLE)}, > > +}; > > > +static int rzg2l_pinctrl_register(struct rzg2l_pinctrl *pctrl) > > +{ > > + struct pinctrl_pin_desc *pins; > > + unsigned int *pin_data; > > u32, to match rzg2l_gpio_configs[] > agreed. > > + unsigned int i, j; > > + int ret; > > + > > + pctrl->desc.name = DRV_NAME; > > + pctrl->desc.npins = pctrl->data->n_port_pins + pctrl->data->n_dedicated_pins; > > + pctrl->desc.pctlops = &rzg2l_pinctrl_pctlops; > > + pctrl->desc.pmxops = &rzg2l_pinctrl_pmxops; > > + pctrl->desc.confops = &rzg2l_pinctrl_confops; > > + pctrl->desc.owner = THIS_MODULE; > > + > > + pins = devm_kcalloc(pctrl->dev, pctrl->desc.npins, sizeof(*pins), GFP_KERNEL); > > + if (!pins) > > + return -ENOMEM; > > + > > + pin_data = devm_kcalloc(pctrl->dev, pctrl->desc.npins, > > + sizeof(unsigned int), GFP_KERNEL); > > sizeof(*pin_data) > Agreed. Cheers, Prabhakar > > Gr{oetje,eeting}s, > > Geert > > -- > Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@linux-m68k.org > > In personal conversations with technical people, I call myself a hacker. But > when I'm talking to journalists I just say "programmer" or something like that. > -- Linus Torvalds > > > On Mon, Jul 12, 2021 at 9:44 PM Lad Prabhakar > <prabhakar.mahadev-lad.rj@bp.renesas.com> wrote: > > > > Add support for pin and gpio controller driver for RZ/G2L SoC. > > > > Based on a patch in the BSP by Hien Huynh <hien.huynh.px@renesas.com>. > > > > Signed-off-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com> > > Reviewed-by: Biju Das <biju.das.jz@bp.renesas.com> > > --- > > drivers/pinctrl/renesas/Kconfig | 11 + > > drivers/pinctrl/renesas/Makefile | 1 + > > drivers/pinctrl/renesas/pinctrl-rzg2l.c | 1196 +++++++++++++++++++++++ > > 3 files changed, 1208 insertions(+) > > create mode 100644 drivers/pinctrl/renesas/pinctrl-rzg2l.c > > > > diff --git a/drivers/pinctrl/renesas/Kconfig b/drivers/pinctrl/renesas/Kconfig > > index 4b84a744ae87..16ce795460f2 100644 > > --- a/drivers/pinctrl/renesas/Kconfig > > +++ b/drivers/pinctrl/renesas/Kconfig > > @@ -176,6 +176,17 @@ config PINCTRL_RZA2 > > help > > This selects GPIO and pinctrl driver for Renesas RZ/A2 platforms. > > > > +config PINCTRL_RZG2L > > + bool "pin control support for RZ/G2L" > > + depends on OF > > + depends on ARCH_R9A07G044 || COMPILE_TEST > > + select GPIOLIB > > + select GENERIC_PINCTRL_GROUPS > > + select GENERIC_PINMUX_FUNCTIONS > > + select GENERIC_PINCONF > > + help > > + This selects GPIO and pinctrl driver for Renesas RZ/G2L platforms. > > + > > config PINCTRL_PFC_R8A77470 > > bool "pin control support for RZ/G1C" if COMPILE_TEST > > select PINCTRL_SH_PFC > > diff --git a/drivers/pinctrl/renesas/Makefile b/drivers/pinctrl/renesas/Makefile > > index 353563228dc2..7d9238a9ef57 100644 > > --- a/drivers/pinctrl/renesas/Makefile > > +++ b/drivers/pinctrl/renesas/Makefile > > @@ -46,6 +46,7 @@ obj-$(CONFIG_PINCTRL_PFC_SHX3) += pfc-shx3.o > > > > obj-$(CONFIG_PINCTRL_RZA1) += pinctrl-rza1.o > > obj-$(CONFIG_PINCTRL_RZA2) += pinctrl-rza2.o > > +obj-$(CONFIG_PINCTRL_RZG2L) += pinctrl-rzg2l.o > > obj-$(CONFIG_PINCTRL_RZN1) += pinctrl-rzn1.o > > > > ifeq ($(CONFIG_COMPILE_TEST),y) > > diff --git a/drivers/pinctrl/renesas/pinctrl-rzg2l.c b/drivers/pinctrl/renesas/pinctrl-rzg2l.c > > new file mode 100644 > > index 000000000000..3e786f15d009 > > --- /dev/null > > +++ b/drivers/pinctrl/renesas/pinctrl-rzg2l.c > > @@ -0,0 +1,1196 @@ > > +// SPDX-License-Identifier: GPL-2.0 > > +/* > > + * Renesas RZ/G2L Pin Control and GPIO driver core > > + * > > + * Copyright (C) 2021 Renesas Electronics Corporation. > > + */ > > + > > +#include <linux/bitops.h> > > +#include <linux/clk.h> > > +#include <linux/gpio/driver.h> > > +#include <linux/io.h> > > +#include <linux/module.h> > > +#include <linux/of_device.h> > > +#include <linux/pinctrl/pinconf-generic.h> > > +#include <linux/pinctrl/pinconf.h> > > +#include <linux/pinctrl/pinctrl.h> > > +#include <linux/pinctrl/pinmux.h> > > +#include <linux/spinlock.h> > > + > > +#include <dt-bindings/pinctrl/rzg2l-pinctrl.h> > > + > > +#include "../core.h" > > +#include "../pinconf.h" > > +#include "../pinmux.h" > > + > > +#define DRV_NAME "pinctrl-rzg2l" > > + > > +/* > > + * Use 16 lower bits [15:0] for pin identifier > > + * Use 16 higher bits [31:16] for pin mux function > > + */ > > +#define MUX_PIN_ID_MASK GENMASK(15, 0) > > +#define MUX_FUNC_MASK GENMASK(31, 16) > > +#define MUX_FUNC_OFFS 16 > > +#define MUX_FUNC(pinconf) (((pinconf) & MUX_FUNC_MASK) >> MUX_FUNC_OFFS) > > + > > +/* PIN capabilities */ > > +#define PIN_CFG_DRIVE_STRENGTH BIT(0) > > +#define PIN_CFG_SLEW_RATE BIT(1) > > +#define PIN_CFG_INPUT_ENABLE BIT(2) > > +#define PIN_CFG_PULL_UP_DOWN BIT(3) > > +#define PIN_CFG_IO_VOLTAGE_SD0 BIT(4) > > +#define PIN_CFG_IO_VOLTAGE_SD1 BIT(5) > > +#define PIN_CFG_IO_VOLTAGE_QSPI BIT(6) > > +#define PIN_CFG_IO_VOLTAGE_ETH0 BIT(7) > > +#define PIN_CFG_IO_VOLTAGE_ETH1 BIT(8) > > +#define PIN_CFG_FILONOFF BIT(9) > > +#define PIN_CFG_FILNUM BIT(10) > > +#define PIN_CFG_FILCLKSEL BIT(11) > > + > > +#define RZG2L_MULTIPLEXED_PIN_FUNCS (PIN_CFG_DRIVE_STRENGTH | \ > > + PIN_CFG_SLEW_RATE | \ > > + PIN_CFG_PULL_UP_DOWN | \ > > + PIN_CFG_FILONOFF | \ > > + PIN_CFG_FILNUM | \ > > + PIN_CFG_FILCLKSEL) > > + > > +#define RZG2L_MULTIPLEXED_ETH_PIN_FUNCS(x) ((x) | \ > > + PIN_CFG_FILONOFF | \ > > + PIN_CFG_FILNUM | \ > > + PIN_CFG_FILCLKSEL) > > + > > +/* > > + * n indicates number of pins in the port, a is the register index > > + * and f is pin configuration capabilities supported. > > + */ > > +#define RZG2L_GPIO_PORT_PACK(n, a, f) (((n) << 28) | ((a) << 20) | (f)) > > +#define RZG2L_GPIO_PORT_GET_PINCNT(x) ((((x) & ~GENMASK(28, 0)) >> 28) & 0x7) > > +#define RZG2L_GPIO_PORT_GET_INDEX(x) ((((x) & ~GENMASK(19, 0) & ~GENMASK(31, 28)) >> 20) & 0x7f) > > +#define RZG2L_GPIO_PORT_GET_CFGS(x) ((x) & ~GENMASK(31, 20)) > > + > > +/* > > + * BIT(31) indicates as dedicated pin, p is the register index while > > + * referencing to SR/IEN/IOLH/FILxx registers, b is the register bits > > + * (b * 8) and f is the pin configuration capabilities supported. > > + */ > > +#define RZG2L_DEDICIATED_PIN BIT(31) > > +#define RZG2L_DEDICIATED_PIN_PACK(p, b, f) (RZG2L_DEDICIATED_PIN | \ > > + ((p) << 24) | ((b) << 20) | (f)) > > +#define RZG2L_DEDICIATED_PIN_GET_PORT(x) ((((x) & ~GENMASK(23, 0)) >> 24) & 0x7f) > > +#define RZG2L_DEDICIATED_PIN_GET_BIT(x) ((((x) & ~GENMASK(19, 0)) >> 20) & 0x7) > > +#define RZG2L_DEDICIATED_PIN_GET_CFGS(x) ((x) & ~GENMASK(31, 20)) > > + > > +#define P(n) (0x0000 + 0x10 + (n)) > > +#define PM(n) (0x0100 + 0x20 + (n) * 2) > > +#define PMC(n) (0x0200 + 0x10 + (n)) > > +#define PFC(n) (0x0400 + 0x40 + (n) * 4) > > +#define PIN(n) (0x0800 + 0x10 + (n)) > > +#define IEN(n) (0x1800 + (n) * 8) > > +#define PWPR (0x3014) > > +#define SD_CH(n) (0x3000 + (n) * 4) > > + > > +#define PVDD_1800 1 /* I/O domain voltage <= 1.8V */ > > +#define PVDD_3300 0 /* I/O domain voltage >= 3.3V */ > > + > > +#define PWPR_B0WI BIT(7) /* Bit Write Disable */ > > +#define PWPR_PFCWE BIT(6) /* PFC Register Write Enable */ > > + > > +#define PM_MASK 0x03 > > +#define PVDD_MASK 0x01 > > +#define PFC_MASK 0x07 > > +#define IEN_MASK 0x01 > > + > > +#define PM_INPUT 0x1 > > +#define PM_OUTPUT 0x2 > > + > > +#define RZG2L_PIN_ID_TO_PORT(id) ((id) / RZG2L_PINS_PER_PORT) > > +#define RZG2L_PIN_ID_TO_PIN(id) ((id) % RZG2L_PINS_PER_PORT) > > + > > +struct rzg2l_dedicated_configs { > > + const char *name; > > + unsigned int config; > > +}; > > + > > +struct rzg2l_pinctrl_data { > > + const char * const *port_pins; > > + const unsigned int *port_pin_configs; > > + struct rzg2l_dedicated_configs *dedicated_pins; > > + unsigned int n_port_pins; > > + unsigned int n_dedicated_pins; > > +}; > > + > > +struct rzg2l_pinctrl { > > + struct pinctrl_dev *pctl; > > + struct pinctrl_desc desc; > > + struct pinctrl_pin_desc *pins; > > + > > + const struct rzg2l_pinctrl_data *data; > > + void __iomem *base; > > + struct device *dev; > > + struct clk *clk; > > + > > + struct gpio_chip gpio_chip; > > + struct pinctrl_gpio_range gpio_range; > > + > > + spinlock_t lock; > > +}; > > + > > +static void rzg2l_pinctrl_set_pfc_mode(struct rzg2l_pinctrl *pctrl, > > + u8 port, u8 pin, u8 func) > > +{ > > + unsigned long flags; > > + u32 reg32; > > + u16 reg16; > > + u8 reg8; > > + > > + spin_lock_irqsave(&pctrl->lock, flags); > > + > > + /* Set pin to 'Non-use (Hi-Z input protection)' */ > > + reg16 = readw(pctrl->base + PM(port)); > > + reg16 &= ~(PM_MASK << (pin * 2)); > > + writew(reg16, pctrl->base + PM(port)); > > + > > + /* Temporarily switch to GPIO mode with PMC register */ > > + reg8 = readb(pctrl->base + PMC(port)); > > + writeb(reg8 & ~BIT(pin), pctrl->base + PMC(port)); > > + > > + /* Set the PWPR register to allow PFC register to write */ > > + writel(0x0, pctrl->base + PWPR); /* B0WI=0, PFCWE=0 */ > > + writel(PWPR_PFCWE, pctrl->base + PWPR); /* B0WI=0, PFCWE=1 */ > > + > > + /* Select Pin function mode with PFC register */ > > + reg32 = readl(pctrl->base + PFC(port)); > > + reg32 &= ~(PFC_MASK << (pin * 4)); > > + writel(reg32 | (func << (pin * 4)), pctrl->base + PFC(port)); > > + > > + /* Set the PWPR register to be write-protected */ > > + writel(0x0, pctrl->base + PWPR); /* B0WI=0, PFCWE=0 */ > > + writel(PWPR_B0WI, pctrl->base + PWPR); /* B0WI=1, PFCWE=0 */ > > + > > + /* Switch to Peripheral pin function with PMC register */ > > + reg8 = readb(pctrl->base + PMC(port)); > > + writeb(reg8 | BIT(pin), pctrl->base + PMC(port)); > > + > > + spin_unlock_irqrestore(&pctrl->lock, flags); > > +}; > > + > > +static int rzg2l_pinctrl_set_mux(struct pinctrl_dev *pctldev, > > + unsigned int func_selector, > > + unsigned int group_selector) > > +{ > > + struct rzg2l_pinctrl *pctrl = pinctrl_dev_get_drvdata(pctldev); > > + struct function_desc *func; > > + unsigned int i, *psel_val; > > + struct group_desc *group; > > + unsigned long data; > > + int *pins; > > + > > + func = pinmux_generic_get_function(pctldev, func_selector); > > + if (!func) > > + return -EINVAL; > > + group = pinctrl_generic_get_group(pctldev, group_selector); > > + if (!group) > > + return -EINVAL; > > + > > + psel_val = func->data; > > + pins = group->pins; > > + data = (unsigned long)group->data; > > + > > + for (i = 0; i < group->num_pins; i++) { > > + dev_dbg(pctrl->dev, "port:%u pin: %u PSEL:%u\n", > > + RZG2L_PIN_ID_TO_PORT(pins[i]), RZG2L_PIN_ID_TO_PIN(pins[i]), > > + psel_val[i]); > > + rzg2l_pinctrl_set_pfc_mode(pctrl, RZG2L_PIN_ID_TO_PORT(pins[i]), > > + RZG2L_PIN_ID_TO_PIN(pins[i]), psel_val[i]); > > + } > > + > > + return 0; > > +}; > > + > > +static int rzg2l_map_add_config(struct pinctrl_map *map, > > + const char *group_or_pin, > > + enum pinctrl_map_type type, > > + unsigned long *configs, > > + unsigned int num_configs) > > +{ > > + unsigned long *cfgs; > > + > > + cfgs = kmemdup(configs, num_configs * sizeof(*cfgs), > > + GFP_KERNEL); > > + if (!cfgs) > > + return -ENOMEM; > > + > > + map->type = type; > > + map->data.configs.group_or_pin = group_or_pin; > > + map->data.configs.configs = cfgs; > > + map->data.configs.num_configs = num_configs; > > + > > + return 0; > > +} > > + > > +static int rzg2l_dt_subnode_to_map(struct pinctrl_dev *pctldev, > > + struct device_node *np, > > + struct pinctrl_map **map, > > + unsigned int *num_maps, > > + unsigned int *index) > > +{ > > + struct rzg2l_pinctrl *pctrl = pinctrl_dev_get_drvdata(pctldev); > > + unsigned long *configs = NULL; > > + unsigned int idx = *index; > > + struct property *pinmux; > > + unsigned int nmaps = *num_maps; > > + struct pinctrl_map *maps = *map; > > + unsigned int num_pins; > > + unsigned int num_configs; > > + unsigned int num_pinmux = 0; > > + unsigned int *pins, *psel_val; > > + int i, ret, gsel, fsel; > > + const char **pin_fn; > > + struct property *prop; > > + const char *pin; > > + > > + pinmux = of_find_property(np, "pinmux", NULL); > > + if (pinmux) > > + num_pinmux = pinmux->length / sizeof(u32); > > + > > + ret = of_property_count_strings(np, "pins"); > > + if (ret == -EINVAL) { > > + num_pins = 0; > > + } else if (ret < 0) { > > + dev_err(pctrl->dev, "Invalid pins list in DT\n"); > > + return ret; > > + } else { > > + num_pins = ret; > > + } > > + > > + if (!num_pinmux && !num_pins) > > + return 0; > > + > > + if (num_pinmux && num_pins) { > > + dev_err(pctrl->dev, > > + "DT node must contain either a pinmux or pins and not both\n"); > > + return -EINVAL; > > + } > > + > > + ret = pinconf_generic_parse_dt_config(np, NULL, &configs, &num_configs); > > + if (ret < 0) > > + return ret; > > + > > + if (num_pins && !num_configs) { > > + dev_err(pctrl->dev, "DT node must contain a config\n"); > > + ret = -ENODEV; > > + goto done; > > + } > > + > > + if (num_pinmux) > > + nmaps += 1; > > + > > + if (num_pins) > > + nmaps += num_pins; > > + > > + maps = krealloc(maps, sizeof(*maps) * nmaps, GFP_KERNEL); > > + if (!maps) { > > + ret = -ENOMEM; > > + goto done; > > + } > > + > > + *map = maps; > > + *num_maps = nmaps; > > + if (num_pins) { > > + of_property_for_each_string(np, "pins", prop, pin) { > > + ret = rzg2l_map_add_config(&maps[idx], pin, > > + PIN_MAP_TYPE_CONFIGS_PIN, > > + configs, num_configs); > > + if (ret < 0) > > + goto done; > > + > > + idx++; > > + } > > + ret = 0; > > + goto done; > > + } > > + > > + pins = devm_kcalloc(pctrl->dev, num_pinmux, sizeof(*pins), GFP_KERNEL); > > + psel_val = devm_kcalloc(pctrl->dev, num_pinmux, sizeof(*psel_val), > > + GFP_KERNEL); > > + pin_fn = devm_kzalloc(pctrl->dev, sizeof(*pin_fn), GFP_KERNEL); > > + if (!pins || !psel_val || !pin_fn) { > > + ret = -ENOMEM; > > + goto done; > > + } > > + > > + /* Collect pin locations and mux settings from DT properties */ > > + for (i = 0; i < num_pinmux; ++i) { > > + u32 value; > > + > > + ret = of_property_read_u32_index(np, "pinmux", i, &value); > > + if (ret) > > + goto done; > > + pins[i] = value & MUX_PIN_ID_MASK; > > + psel_val[i] = MUX_FUNC(value); > > + } > > + > > + /* Register a single pin group listing all the pins we read from DT */ > > + gsel = pinctrl_generic_add_group(pctldev, np->name, pins, num_pinmux, NULL); > > + if (gsel < 0) { > > + ret = gsel; > > + goto done; > > + } > > + > > + /* > > + * Register a single group function where the 'data' is an array PSEL > > + * register values read from DT. > > + */ > > + pin_fn[0] = np->name; > > + fsel = pinmux_generic_add_function(pctldev, np->name, pin_fn, 1, > > + psel_val); > > + if (fsel < 0) { > > + ret = fsel; > > + goto remove_group; > > + } > > + > > + maps[idx].type = PIN_MAP_TYPE_MUX_GROUP; > > + maps[idx].data.mux.group = np->name; > > + maps[idx].data.mux.function = np->name; > > + idx++; > > + > > + dev_dbg(pctrl->dev, "Parsed %pOF with %d pins\n", np, num_pinmux); > > + ret = 0; > > + goto done; > > + > > +remove_group: > > + pinctrl_generic_remove_group(pctldev, gsel); > > +done: > > + *index = idx; > > + kfree(configs); > > + return ret; > > +} > > + > > +static void rzg2l_dt_free_map(struct pinctrl_dev *pctldev, > > + struct pinctrl_map *map, > > + unsigned int num_maps) > > +{ > > + unsigned int i; > > + > > + if (!map) > > + return; > > + > > + for (i = 0; i < num_maps; ++i) { > > + if (map[i].type == PIN_MAP_TYPE_CONFIGS_GROUP || > > + map[i].type == PIN_MAP_TYPE_CONFIGS_PIN) > > + kfree(map[i].data.configs.configs); > > + } > > + kfree(map); > > +} > > + > > +static int rzg2l_dt_node_to_map(struct pinctrl_dev *pctldev, > > + struct device_node *np, > > + struct pinctrl_map **map, > > + unsigned int *num_maps) > > +{ > > + struct rzg2l_pinctrl *pctrl = pinctrl_dev_get_drvdata(pctldev); > > + struct device_node *child; > > + unsigned int index; > > + int ret; > > + > > + *map = NULL; > > + *num_maps = 0; > > + index = 0; > > + > > + for_each_child_of_node(np, child) { > > + ret = rzg2l_dt_subnode_to_map(pctldev, child, map, > > + num_maps, &index); > > + if (ret < 0) { > > + of_node_put(child); > > + goto done; > > + } > > + } > > + > > + if (*num_maps == 0) { > > + ret = rzg2l_dt_subnode_to_map(pctldev, np, map, > > + num_maps, &index); > > + if (ret < 0) > > + goto done; > > + } > > + > > + if (*num_maps) > > + return 0; > > + > > + dev_err(pctrl->dev, "no mapping found in node %pOF\n", np); > > + ret = -EINVAL; > > + > > +done: > > + if (ret < 0) > > + rzg2l_dt_free_map(pctldev, *map, *num_maps); > > + > > + return ret; > > +} > > + > > +static int rzg2l_pinctrl_pinconf_get(struct pinctrl_dev *pctldev, > > + unsigned int _pin, > > + unsigned long *config) > > +{ > > + struct rzg2l_pinctrl *pctrl = pinctrl_dev_get_drvdata(pctldev); > > + enum pin_config_param param = pinconf_to_config_param(*config); > > + const struct pinctrl_pin_desc *pin = &pctrl->desc.pins[_pin]; > > + unsigned int *pin_data = pin->drv_data; > > + unsigned int arg = 0; > > + unsigned long flags; > > + void __iomem *addr; > > + u32 port = 0, reg; > > + u32 cfg = 0; > > + u8 bit = 0; > > + > > + if (!pin_data) > > + return -EINVAL; > > + > > + if (*pin_data & RZG2L_DEDICIATED_PIN) { > > + port = RZG2L_DEDICIATED_PIN_GET_PORT(*pin_data); > > + cfg = RZG2L_DEDICIATED_PIN_GET_CFGS(*pin_data); > > + bit = RZG2L_DEDICIATED_PIN_GET_BIT(*pin_data); > > + } > > + > > + switch (param) { > > + case PIN_CONFIG_INPUT_ENABLE: > > + if (!(cfg & PIN_CFG_INPUT_ENABLE)) > > + return -EINVAL; > > + spin_lock_irqsave(&pctrl->lock, flags); > > + /* handle _L/_H for 32-bit register read/write */ > > + addr = pctrl->base + IEN(port) + ((bit > 3) ? 0x4 : 0x0); > > + if (bit > 3) > > + bit -= 4; > > + > > + reg = readl(addr) & (IEN_MASK << (bit * 8)); > > + arg = (reg >> (bit * 8)) & 0x1; > > + spin_unlock_irqrestore(&pctrl->lock, flags); > > + break; > > + > > + case PIN_CONFIG_POWER_SOURCE: > > + if (!((cfg & PIN_CFG_IO_VOLTAGE_SD0) || (cfg & PIN_CFG_IO_VOLTAGE_SD1))) > > + return -EINVAL; > > + > > + spin_lock_irqsave(&pctrl->lock, flags); > > + addr = pctrl->base + ((cfg == PIN_CFG_IO_VOLTAGE_SD0) ? SD_CH(0) : SD_CH(1)); > > + arg = (readl(addr) & PVDD_MASK) ? 1800 : 3300; > > + spin_unlock_irqrestore(&pctrl->lock, flags); > > + break; > > + > > + default: > > + return -ENOTSUPP; > > + } > > + > > + *config = pinconf_to_config_packed(param, arg); > > + > > + return 0; > > +}; > > + > > +static int rzg2l_pinctrl_pinconf_set(struct pinctrl_dev *pctldev, > > + unsigned int _pin, > > + unsigned long *_configs, > > + unsigned int num_configs) > > +{ > > + struct rzg2l_pinctrl *pctrl = pinctrl_dev_get_drvdata(pctldev); > > + const struct pinctrl_pin_desc *pin = &pctrl->desc.pins[_pin]; > > + unsigned int *pin_data = pin->drv_data; > > + enum pin_config_param param; > > + unsigned long flags; > > + void __iomem *addr; > > + u32 port = 0, reg; > > + unsigned int i; > > + u32 cfg = 0; > > + u8 bit = 0; > > + > > + if (!pin_data) > > + return -EINVAL; > > + > > + if (*pin_data & BIT(31)) { > > + port = RZG2L_DEDICIATED_PIN_GET_PORT(*pin_data); > > + cfg = RZG2L_DEDICIATED_PIN_GET_CFGS(*pin_data); > > + bit = RZG2L_DEDICIATED_PIN_GET_BIT(*pin_data); > > + } > > + > > + for (i = 0; i < num_configs; i++) { > > + param = pinconf_to_config_param(_configs[i]); > > + switch (param) { > > + case PIN_CONFIG_INPUT_ENABLE: { > > + unsigned int arg = > > + pinconf_to_config_argument(_configs[i]); > > + > > + if (!(cfg & PIN_CFG_INPUT_ENABLE)) > > + return -EINVAL; > > + > > + /* handle _L/_H for 32-bit register read/write */ > > + addr = pctrl->base + IEN(port) + ((bit > 3) ? 0x4 : 0x0); > > + if (bit > 3) > > + bit -= 4; > > + > > + spin_lock_irqsave(&pctrl->lock, flags); > > + reg = readl(addr) & ~(IEN_MASK << (bit * 8)); > > + writel(reg | (arg << (bit * 8)), addr); > > + spin_unlock_irqrestore(&pctrl->lock, flags); > > + break; > > + } > > + > > + case PIN_CONFIG_POWER_SOURCE: { > > + unsigned int mV = pinconf_to_config_argument(_configs[i]); > > + > > + if (mV != 1800 && mV != 3300) > > + return -EINVAL; > > + > > + if (!(cfg & PIN_CFG_IO_VOLTAGE_SD0 || cfg & PIN_CFG_IO_VOLTAGE_SD1)) > > + return -EINVAL; > > + > > + addr = pctrl->base + ((cfg == PIN_CFG_IO_VOLTAGE_SD0) ? > > + SD_CH(0) : SD_CH(1)); > > + spin_lock_irqsave(&pctrl->lock, flags); > > + writel((mV == 1800) ? PVDD_1800 : PVDD_3300, addr); > > + spin_unlock_irqrestore(&pctrl->lock, flags); > > + break; > > + } > > + default: > > + return -EOPNOTSUPP; > > + } > > + } > > + > > + return 0; > > +} > > + > > +static int rzg2l_pinctrl_pinconf_group_set(struct pinctrl_dev *pctldev, > > + unsigned int group, > > + unsigned long *configs, > > + unsigned int num_configs) > > +{ > > + const unsigned int *pins; > > + unsigned int i, npins; > > + int ret; > > + > > + ret = pinctrl_generic_get_group_pins(pctldev, group, &pins, &npins); > > + if (ret) > > + return ret; > > + > > + for (i = 0; i < npins; i++) { > > + ret = rzg2l_pinctrl_pinconf_set(pctldev, pins[i], configs, > > + num_configs); > > + if (ret) > > + return ret; > > + } > > + > > + return 0; > > +}; > > + > > +static int rzg2l_pinctrl_pinconf_group_get(struct pinctrl_dev *pctldev, > > + unsigned int group, > > + unsigned long *config) > > +{ > > + const unsigned int *pins; > > + unsigned int i, npins, prev_config = 0; > > + int ret; > > + > > + ret = pinctrl_generic_get_group_pins(pctldev, group, &pins, &npins); > > + if (ret) > > + return ret; > > + > > + for (i = 0; i < npins; i++) { > > + ret = rzg2l_pinctrl_pinconf_get(pctldev, pins[i], config); > > + if (ret) > > + return ret; > > + > > + /* Check config matching between to pin */ > > + if (i && prev_config != *config) > > + return -EOPNOTSUPP; > > + > > + prev_config = *config; > > + } > > + > > + return 0; > > +}; > > + > > +static const struct pinctrl_ops rzg2l_pinctrl_pctlops = { > > + .get_groups_count = pinctrl_generic_get_group_count, > > + .get_group_name = pinctrl_generic_get_group_name, > > + .get_group_pins = pinctrl_generic_get_group_pins, > > + .dt_node_to_map = rzg2l_dt_node_to_map, > > + .dt_free_map = rzg2l_dt_free_map, > > +}; > > + > > +static const struct pinmux_ops rzg2l_pinctrl_pmxops = { > > + .get_functions_count = pinmux_generic_get_function_count, > > + .get_function_name = pinmux_generic_get_function_name, > > + .get_function_groups = pinmux_generic_get_function_groups, > > + .set_mux = rzg2l_pinctrl_set_mux, > > + .strict = true, > > +}; > > + > > +static const struct pinconf_ops rzg2l_pinctrl_confops = { > > + .is_generic = true, > > + .pin_config_get = rzg2l_pinctrl_pinconf_get, > > + .pin_config_set = rzg2l_pinctrl_pinconf_set, > > + .pin_config_group_set = rzg2l_pinctrl_pinconf_group_set, > > + .pin_config_group_get = rzg2l_pinctrl_pinconf_group_get, > > + .pin_config_config_dbg_show = pinconf_generic_dump_config, > > +}; > > + > > +static int rzg2l_gpio_request(struct gpio_chip *chip, unsigned int offset) > > +{ > > + struct rzg2l_pinctrl *pctrl = gpiochip_get_data(chip); > > + u32 port = RZG2L_PIN_ID_TO_PORT(offset); > > + u8 bit = RZG2L_PIN_ID_TO_PIN(offset); > > + unsigned long flags; > > + u8 reg8; > > + int ret; > > + > > + ret = pinctrl_gpio_request(chip->base + offset); > > + if (ret) > > + return ret; > > + > > + spin_lock_irqsave(&pctrl->lock, flags); > > + > > + /* Select GPIO mode in PMC Register */ > > + reg8 = readb(pctrl->base + PMC(port)); > > + reg8 &= ~BIT(bit); > > + writeb(reg8, pctrl->base + PMC(port)); > > + > > + spin_unlock_irqrestore(&pctrl->lock, flags); > > + > > + return 0; > > +} > > + > > +static void rzg2l_gpio_set_direction(struct rzg2l_pinctrl *pctrl, u32 port, > > + u8 bit, bool output) > > +{ > > + unsigned long flags; > > + u16 reg16; > > + > > + spin_lock_irqsave(&pctrl->lock, flags); > > + > > + reg16 = readw(pctrl->base + PM(port)); > > + reg16 &= ~(PM_MASK << (bit * 2)); > > + > > + reg16 |= (output ? PM_OUTPUT : PM_INPUT) << (bit * 2); > > + writew(reg16, pctrl->base + PM(port)); > > + > > + spin_unlock_irqrestore(&pctrl->lock, flags); > > +} > > + > > +static int rzg2l_gpio_get_direction(struct gpio_chip *chip, unsigned int offset) > > +{ > > + struct rzg2l_pinctrl *pctrl = gpiochip_get_data(chip); > > + u32 port = RZG2L_PIN_ID_TO_PORT(offset); > > + u8 bit = RZG2L_PIN_ID_TO_PIN(offset); > > + > > + if (!(readb(pctrl->base + PMC(port)) & BIT(bit))) { > > + u16 reg16; > > + > > + reg16 = readw(pctrl->base + PM(port)); > > + reg16 = (reg16 >> (bit * 2)) & PM_MASK; > > + if (reg16 == PM_OUTPUT) > > + return GPIO_LINE_DIRECTION_OUT; > > + } > > + > > + return GPIO_LINE_DIRECTION_IN; > > +} > > + > > +static int rzg2l_gpio_direction_input(struct gpio_chip *chip, > > + unsigned int offset) > > +{ > > + struct rzg2l_pinctrl *pctrl = gpiochip_get_data(chip); > > + u32 port = RZG2L_PIN_ID_TO_PORT(offset); > > + u8 bit = RZG2L_PIN_ID_TO_PIN(offset); > > + > > + rzg2l_gpio_set_direction(pctrl, port, bit, false); > > + > > + return 0; > > +} > > + > > +static void rzg2l_gpio_set(struct gpio_chip *chip, unsigned int offset, > > + int value) > > +{ > > + struct rzg2l_pinctrl *pctrl = gpiochip_get_data(chip); > > + u32 port = RZG2L_PIN_ID_TO_PORT(offset); > > + u8 bit = RZG2L_PIN_ID_TO_PIN(offset); > > + unsigned long flags; > > + u8 reg8; > > + > > + spin_lock_irqsave(&pctrl->lock, flags); > > + > > + reg8 = readb(pctrl->base + P(port)); > > + > > + if (value) > > + writeb(reg8 | BIT(bit), pctrl->base + P(port)); > > + else > > + writeb(reg8 & ~BIT(bit), pctrl->base + P(port)); > > + > > + spin_unlock_irqrestore(&pctrl->lock, flags); > > +} > > + > > +static int rzg2l_gpio_direction_output(struct gpio_chip *chip, > > + unsigned int offset, int value) > > +{ > > + struct rzg2l_pinctrl *pctrl = gpiochip_get_data(chip); > > + u32 port = RZG2L_PIN_ID_TO_PORT(offset); > > + u8 bit = RZG2L_PIN_ID_TO_PIN(offset); > > + > > + rzg2l_gpio_set(chip, offset, value); > > + rzg2l_gpio_set_direction(pctrl, port, bit, true); > > + > > + return 0; > > +} > > + > > +static int rzg2l_gpio_get(struct gpio_chip *chip, unsigned int offset) > > +{ > > + struct rzg2l_pinctrl *pctrl = gpiochip_get_data(chip); > > + u32 port = RZG2L_PIN_ID_TO_PORT(offset); > > + u8 bit = RZG2L_PIN_ID_TO_PIN(offset); > > + u16 reg16; > > + > > + reg16 = readw(pctrl->base + PM(port)); > > + reg16 = (reg16 >> (bit * 2)) & PM_MASK; > > + > > + if (reg16 == PM_INPUT) > > + return !!(readb(pctrl->base + PIN(port)) & BIT(bit)); > > + else if (reg16 == PM_OUTPUT) > > + return !!(readb(pctrl->base + P(port)) & BIT(bit)); > > + else > > + return -EINVAL; > > +} > > + > > +static void rzg2l_gpio_free(struct gpio_chip *chip, unsigned int offset) > > +{ > > + pinctrl_gpio_free(chip->base + offset); > > + > > + /* > > + * Set the GPIO as an input to ensure that the next GPIO request won't > > + * drive the GPIO pin as an output. > > + */ > > + rzg2l_gpio_direction_input(chip, offset); > > +} > > + > > +static const char * const rzg2l_gpio_names[] = { > > + "P0_0", "P0_1", "P0_2", "P0_3", "P0_4", "P0_5", "P0_6", "P0_7", > > + "P1_0", "P1_1", "P1_2", "P1_3", "P1_4", "P1_5", "P1_6", "P1_7", > > + "P2_0", "P2_1", "P2_2", "P2_3", "P2_4", "P2_5", "P2_6", "P2_7", > > + "P3_0", "P3_1", "P3_2", "P3_3", "P3_4", "P3_5", "P3_6", "P3_7", > > + "P4_0", "P4_1", "P4_2", "P4_3", "P4_4", "P4_5", "P4_6", "P4_7", > > + "P5_0", "P5_1", "P5_2", "P5_3", "P5_4", "P5_5", "P5_6", "P5_7", > > + "P6_0", "P6_1", "P6_2", "P6_3", "P6_4", "P6_5", "P6_6", "P6_7", > > + "P7_0", "P7_1", "P7_2", "P7_3", "P7_4", "P7_5", "P7_6", "P7_7", > > + "P8_0", "P8_1", "P8_2", "P8_3", "P8_4", "P8_5", "P8_6", "P8_7", > > + "P9_0", "P9_1", "P9_2", "P9_3", "P9_4", "P9_5", "P9_6", "P9_7", > > + "P10_0", "P10_1", "P10_2", "P10_3", "P10_4", "P10_5", "P10_6", "P10_7", > > + "P11_0", "P11_1", "P11_2", "P11_3", "P11_4", "P11_5", "P11_6", "P11_7", > > + "P12_0", "P12_1", "P12_2", "P12_3", "P12_4", "P12_5", "P12_6", "P12_7", > > + "P13_0", "P13_1", "P13_2", "P13_3", "P13_4", "P13_5", "P13_6", "P13_7", > > + "P14_0", "P14_1", "P14_2", "P14_3", "P14_4", "P14_5", "P14_6", "P14_7", > > + "P15_0", "P15_1", "P15_2", "P15_3", "P15_4", "P15_5", "P15_6", "P15_7", > > + "P16_0", "P16_1", "P16_2", "P16_3", "P16_4", "P16_5", "P16_6", "P16_7", > > + "P17_0", "P17_1", "P17_2", "P17_3", "P17_4", "P17_5", "P17_6", "P17_7", > > + "P18_0", "P18_1", "P18_2", "P18_3", "P18_4", "P18_5", "P18_6", "P18_7", > > + "P19_0", "P19_1", "P19_2", "P19_3", "P19_4", "P19_5", "P19_6", "P19_7", > > + "P20_0", "P20_1", "P20_2", "P20_3", "P20_4", "P20_5", "P20_6", "P20_7", > > + "P21_0", "P21_1", "P21_2", "P21_3", "P21_4", "P21_5", "P21_6", "P21_7", > > + "P22_0", "P22_1", "P22_2", "P22_3", "P22_4", "P22_5", "P22_6", "P22_7", > > + "P23_0", "P23_1", "P23_2", "P23_3", "P23_4", "P23_5", "P23_6", "P23_7", > > + "P24_0", "P24_1", "P24_2", "P24_3", "P24_4", "P24_5", "P24_6", "P24_7", > > + "P25_0", "P25_1", "P25_2", "P25_3", "P25_4", "P25_5", "P25_6", "P25_7", > > + "P26_0", "P26_1", "P26_2", "P26_3", "P26_4", "P26_5", "P26_6", "P26_7", > > + "P27_0", "P27_1", "P27_2", "P27_3", "P27_4", "P27_5", "P27_6", "P27_7", > > + "P28_0", "P28_1", "P28_2", "P28_3", "P28_4", "P28_5", "P28_6", "P28_7", > > + "P29_0", "P29_1", "P29_2", "P29_3", "P29_4", "P29_5", "P29_6", "P29_7", > > + "P30_0", "P30_1", "P30_2", "P30_3", "P30_4", "P30_5", "P30_6", "P30_7", > > + "P31_0", "P31_1", "P31_2", "P31_3", "P31_4", "P31_5", "P31_6", "P31_7", > > + "P32_0", "P32_1", "P32_2", "P32_3", "P32_4", "P32_5", "P32_6", "P32_7", > > + "P33_0", "P33_1", "P33_2", "P33_3", "P33_4", "P33_5", "P33_6", "P33_7", > > + "P34_0", "P34_1", "P34_2", "P34_3", "P34_4", "P34_5", "P34_6", "P34_7", > > + "P35_0", "P35_1", "P35_2", "P35_3", "P35_4", "P35_5", "P35_6", "P35_7", > > + "P36_0", "P36_1", "P36_2", "P36_3", "P36_4", "P36_5", "P36_6", "P36_7", > > + "P37_0", "P37_1", "P37_2", "P37_3", "P37_4", "P37_5", "P37_6", "P37_7", > > + "P38_0", "P38_1", "P38_2", "P38_3", "P38_4", "P38_5", "P38_6", "P38_7", > > + "P39_0", "P39_1", "P39_2", "P39_3", "P39_4", "P39_5", "P39_6", "P39_7", > > + "P40_0", "P40_1", "P40_2", "P40_3", "P40_4", "P40_5", "P40_6", "P40_7", > > + "P41_0", "P41_1", "P41_2", "P41_3", "P41_4", "P41_5", "P41_6", "P41_7", > > + "P42_0", "P42_1", "P42_2", "P42_3", "P42_4", "P42_5", "P42_6", "P42_7", > > + "P43_0", "P43_1", "P43_2", "P43_3", "P43_4", "P43_5", "P43_6", "P43_7", > > + "P44_0", "P44_1", "P44_2", "P44_3", "P44_4", "P44_5", "P44_6", "P44_7", > > + "P45_0", "P45_1", "P45_2", "P45_3", "P45_4", "P45_5", "P45_6", "P45_7", > > + "P46_0", "P46_1", "P46_2", "P46_3", "P46_4", "P46_5", "P46_6", "P46_7", > > + "P47_0", "P47_1", "P47_2", "P47_3", "P47_4", "P47_5", "P47_6", "P47_7", > > + "P48_0", "P48_1", "P48_2", "P48_3", "P48_4", "P48_5", "P48_6", "P48_7", > > +}; > > + > > +static const u32 rzg2l_gpio_configs[] = { > > + RZG2L_GPIO_PORT_PACK(2, 0x10, RZG2L_MULTIPLEXED_PIN_FUNCS), > > + RZG2L_GPIO_PORT_PACK(2, 0x11, RZG2L_MULTIPLEXED_PIN_FUNCS), > > + RZG2L_GPIO_PORT_PACK(2, 0x12, RZG2L_MULTIPLEXED_PIN_FUNCS), > > + RZG2L_GPIO_PORT_PACK(2, 0x13, RZG2L_MULTIPLEXED_PIN_FUNCS), > > + RZG2L_GPIO_PORT_PACK(2, 0x14, RZG2L_MULTIPLEXED_PIN_FUNCS), > > + RZG2L_GPIO_PORT_PACK(3, 0x15, RZG2L_MULTIPLEXED_PIN_FUNCS), > > + RZG2L_GPIO_PORT_PACK(2, 0x16, RZG2L_MULTIPLEXED_PIN_FUNCS), > > + RZG2L_GPIO_PORT_PACK(3, 0x17, RZG2L_MULTIPLEXED_PIN_FUNCS), > > + RZG2L_GPIO_PORT_PACK(3, 0x18, RZG2L_MULTIPLEXED_PIN_FUNCS), > > + RZG2L_GPIO_PORT_PACK(2, 0x19, RZG2L_MULTIPLEXED_PIN_FUNCS), > > + RZG2L_GPIO_PORT_PACK(2, 0x1a, RZG2L_MULTIPLEXED_PIN_FUNCS), > > + RZG2L_GPIO_PORT_PACK(2, 0x1b, RZG2L_MULTIPLEXED_PIN_FUNCS), > > + RZG2L_GPIO_PORT_PACK(2, 0x1c, RZG2L_MULTIPLEXED_PIN_FUNCS), > > + RZG2L_GPIO_PORT_PACK(3, 0x1d, RZG2L_MULTIPLEXED_PIN_FUNCS), > > + RZG2L_GPIO_PORT_PACK(2, 0x1e, RZG2L_MULTIPLEXED_PIN_FUNCS), > > + RZG2L_GPIO_PORT_PACK(2, 0x1f, RZG2L_MULTIPLEXED_PIN_FUNCS), > > + RZG2L_GPIO_PORT_PACK(2, 0x20, RZG2L_MULTIPLEXED_PIN_FUNCS), > > + RZG2L_GPIO_PORT_PACK(3, 0x22, RZG2L_MULTIPLEXED_PIN_FUNCS), > > + RZG2L_GPIO_PORT_PACK(2, 0x22, RZG2L_MULTIPLEXED_PIN_FUNCS), > > + RZG2L_GPIO_PORT_PACK(2, 0x23, RZG2L_MULTIPLEXED_PIN_FUNCS), > > + RZG2L_GPIO_PORT_PACK(3, 0x24, RZG2L_MULTIPLEXED_ETH_PIN_FUNCS(PIN_CFG_IO_VOLTAGE_ETH0)), > > + RZG2L_GPIO_PORT_PACK(2, 0x25, RZG2L_MULTIPLEXED_ETH_PIN_FUNCS(PIN_CFG_IO_VOLTAGE_ETH0)), > > + RZG2L_GPIO_PORT_PACK(2, 0x26, RZG2L_MULTIPLEXED_ETH_PIN_FUNCS(PIN_CFG_IO_VOLTAGE_ETH0)), > > + RZG2L_GPIO_PORT_PACK(2, 0x27, RZG2L_MULTIPLEXED_ETH_PIN_FUNCS(PIN_CFG_IO_VOLTAGE_ETH0)), > > + RZG2L_GPIO_PORT_PACK(2, 0x28, RZG2L_MULTIPLEXED_ETH_PIN_FUNCS(PIN_CFG_IO_VOLTAGE_ETH0)), > > + RZG2L_GPIO_PORT_PACK(2, 0x29, RZG2L_MULTIPLEXED_ETH_PIN_FUNCS(PIN_CFG_IO_VOLTAGE_ETH0)), > > + RZG2L_GPIO_PORT_PACK(2, 0x2a, RZG2L_MULTIPLEXED_ETH_PIN_FUNCS(PIN_CFG_IO_VOLTAGE_ETH0)), > > + RZG2L_GPIO_PORT_PACK(2, 0x2b, RZG2L_MULTIPLEXED_ETH_PIN_FUNCS(PIN_CFG_IO_VOLTAGE_ETH0)), > > + RZG2L_GPIO_PORT_PACK(2, 0x2c, RZG2L_MULTIPLEXED_ETH_PIN_FUNCS(PIN_CFG_IO_VOLTAGE_ETH0)), > > + RZG2L_GPIO_PORT_PACK(2, 0x2d, RZG2L_MULTIPLEXED_ETH_PIN_FUNCS(PIN_CFG_IO_VOLTAGE_ETH1)), > > + RZG2L_GPIO_PORT_PACK(2, 0x2e, RZG2L_MULTIPLEXED_ETH_PIN_FUNCS(PIN_CFG_IO_VOLTAGE_ETH1)), > > + RZG2L_GPIO_PORT_PACK(2, 0x2f, RZG2L_MULTIPLEXED_ETH_PIN_FUNCS(PIN_CFG_IO_VOLTAGE_ETH1)), > > + RZG2L_GPIO_PORT_PACK(2, 0x30, RZG2L_MULTIPLEXED_ETH_PIN_FUNCS(PIN_CFG_IO_VOLTAGE_ETH1)), > > + RZG2L_GPIO_PORT_PACK(2, 0x31, RZG2L_MULTIPLEXED_ETH_PIN_FUNCS(PIN_CFG_IO_VOLTAGE_ETH1)), > > + RZG2L_GPIO_PORT_PACK(2, 0x32, RZG2L_MULTIPLEXED_ETH_PIN_FUNCS(PIN_CFG_IO_VOLTAGE_ETH1)), > > + RZG2L_GPIO_PORT_PACK(2, 0x33, RZG2L_MULTIPLEXED_ETH_PIN_FUNCS(PIN_CFG_IO_VOLTAGE_ETH1)), > > + RZG2L_GPIO_PORT_PACK(2, 0x34, RZG2L_MULTIPLEXED_ETH_PIN_FUNCS(PIN_CFG_IO_VOLTAGE_ETH1)), > > + RZG2L_GPIO_PORT_PACK(3, 0x35, RZG2L_MULTIPLEXED_ETH_PIN_FUNCS(PIN_CFG_IO_VOLTAGE_ETH1)), > > + RZG2L_GPIO_PORT_PACK(2, 0x36, RZG2L_MULTIPLEXED_PIN_FUNCS), > > + RZG2L_GPIO_PORT_PACK(3, 0x37, RZG2L_MULTIPLEXED_PIN_FUNCS), > > + RZG2L_GPIO_PORT_PACK(3, 0x38, RZG2L_MULTIPLEXED_PIN_FUNCS), > > + RZG2L_GPIO_PORT_PACK(2, 0x39, RZG2L_MULTIPLEXED_PIN_FUNCS), > > + RZG2L_GPIO_PORT_PACK(5, 0x3a, RZG2L_MULTIPLEXED_PIN_FUNCS), > > + RZG2L_GPIO_PORT_PACK(4, 0x3b, RZG2L_MULTIPLEXED_PIN_FUNCS), > > + RZG2L_GPIO_PORT_PACK(4, 0x3c, RZG2L_MULTIPLEXED_PIN_FUNCS), > > + RZG2L_GPIO_PORT_PACK(4, 0x3d, RZG2L_MULTIPLEXED_PIN_FUNCS), > > + RZG2L_GPIO_PORT_PACK(4, 0x3e, RZG2L_MULTIPLEXED_PIN_FUNCS), > > + RZG2L_GPIO_PORT_PACK(4, 0x3f, RZG2L_MULTIPLEXED_PIN_FUNCS), > > + RZG2L_GPIO_PORT_PACK(5, 0x40, RZG2L_MULTIPLEXED_PIN_FUNCS), > > +}; > > + > > +static struct rzg2l_dedicated_configs rzg2l_dedicated_pins[] = { > > + { "NMI", RZG2L_DEDICIATED_PIN_PACK(0x1, 0, (PIN_CFG_FILONOFF | > > + PIN_CFG_FILNUM | > > + PIN_CFG_FILCLKSEL)) }, > > + { "TMS/SWDIO", RZG2L_DEDICIATED_PIN_PACK(0x2, 0, (PIN_CFG_SLEW_RATE | > > + PIN_CFG_DRIVE_STRENGTH | > > + PIN_CFG_INPUT_ENABLE))}, > > + { "TDO", RZG2L_DEDICIATED_PIN_PACK(0x3, 0, (PIN_CFG_DRIVE_STRENGTH | > > + PIN_CFG_SLEW_RATE | > > + PIN_CFG_INPUT_ENABLE))}, > > + { "AUDIO_CLK1", RZG2L_DEDICIATED_PIN_PACK(0x4, 0, PIN_CFG_INPUT_ENABLE)}, > > + { "AUDIO_CLK2", RZG2L_DEDICIATED_PIN_PACK(0x4, 1, PIN_CFG_INPUT_ENABLE)}, > > + { "SD0_CLK", RZG2L_DEDICIATED_PIN_PACK(0x6, 0, (PIN_CFG_DRIVE_STRENGTH | > > + PIN_CFG_SLEW_RATE | > > + PIN_CFG_IO_VOLTAGE_SD0))}, > > + { "SD0_CMD", RZG2L_DEDICIATED_PIN_PACK(0x6, 1, (PIN_CFG_DRIVE_STRENGTH | > > + PIN_CFG_SLEW_RATE | > > + PIN_CFG_INPUT_ENABLE | > > + PIN_CFG_IO_VOLTAGE_SD0))}, > > + { "SD0_RST", RZG2L_DEDICIATED_PIN_PACK(0x6, 2, (PIN_CFG_DRIVE_STRENGTH | > > + PIN_CFG_SLEW_RATE | > > + PIN_CFG_IO_VOLTAGE_SD0))}, > > + { "SD0_DATA0", RZG2L_DEDICIATED_PIN_PACK(0x7, 0, (PIN_CFG_DRIVE_STRENGTH | > > + PIN_CFG_SLEW_RATE | > > + PIN_CFG_INPUT_ENABLE | > > + PIN_CFG_IO_VOLTAGE_SD0))}, > > + { "SD0_DATA1", RZG2L_DEDICIATED_PIN_PACK(0x7, 1, (PIN_CFG_DRIVE_STRENGTH | > > + PIN_CFG_SLEW_RATE | > > + PIN_CFG_INPUT_ENABLE | > > + PIN_CFG_IO_VOLTAGE_SD0))}, > > + { "SD0_DATA2", RZG2L_DEDICIATED_PIN_PACK(0x7, 2, (PIN_CFG_DRIVE_STRENGTH | > > + PIN_CFG_SLEW_RATE | > > + PIN_CFG_INPUT_ENABLE | > > + PIN_CFG_IO_VOLTAGE_SD0))}, > > + { "SD0_DATA3", RZG2L_DEDICIATED_PIN_PACK(0x7, 3, (PIN_CFG_DRIVE_STRENGTH | > > + PIN_CFG_SLEW_RATE | > > + PIN_CFG_INPUT_ENABLE | > > + PIN_CFG_IO_VOLTAGE_SD0))}, > > + { "SD0_DATA4", RZG2L_DEDICIATED_PIN_PACK(0x7, 4, (PIN_CFG_DRIVE_STRENGTH | > > + PIN_CFG_SLEW_RATE | > > + PIN_CFG_INPUT_ENABLE | > > + PIN_CFG_IO_VOLTAGE_SD0))}, > > + { "SD0_DATA5", RZG2L_DEDICIATED_PIN_PACK(0x7, 5, (PIN_CFG_DRIVE_STRENGTH | > > + PIN_CFG_SLEW_RATE | > > + PIN_CFG_INPUT_ENABLE | > > + PIN_CFG_IO_VOLTAGE_SD0))}, > > + { "SD0_DATA6", RZG2L_DEDICIATED_PIN_PACK(0x7, 6, (PIN_CFG_DRIVE_STRENGTH | > > + PIN_CFG_SLEW_RATE | > > + PIN_CFG_INPUT_ENABLE | > > + PIN_CFG_IO_VOLTAGE_SD0))}, > > + { "SD0_DATA7", RZG2L_DEDICIATED_PIN_PACK(0x7, 7, (PIN_CFG_DRIVE_STRENGTH | > > + PIN_CFG_SLEW_RATE | > > + PIN_CFG_INPUT_ENABLE | > > + PIN_CFG_IO_VOLTAGE_SD0))}, > > + { "SD1_CLK", RZG2L_DEDICIATED_PIN_PACK(0x8, 0, (PIN_CFG_DRIVE_STRENGTH | > > + PIN_CFG_SLEW_RATE | > > + PIN_CFG_IO_VOLTAGE_SD1))}, > > + { "SD1_CMD", RZG2L_DEDICIATED_PIN_PACK(0x8, 1, (PIN_CFG_DRIVE_STRENGTH | > > + PIN_CFG_SLEW_RATE | > > + PIN_CFG_INPUT_ENABLE | > > + PIN_CFG_IO_VOLTAGE_SD1))}, > > + { "SD1_DATA0", RZG2L_DEDICIATED_PIN_PACK(0x9, 0, (PIN_CFG_DRIVE_STRENGTH | > > + PIN_CFG_SLEW_RATE | > > + PIN_CFG_INPUT_ENABLE | > > + PIN_CFG_IO_VOLTAGE_SD1))}, > > + { "SD1_DATA1", RZG2L_DEDICIATED_PIN_PACK(0x9, 1, (PIN_CFG_DRIVE_STRENGTH | > > + PIN_CFG_SLEW_RATE | > > + PIN_CFG_INPUT_ENABLE | > > + PIN_CFG_IO_VOLTAGE_SD1))}, > > + { "SD1_DATA2", RZG2L_DEDICIATED_PIN_PACK(0x9, 2, (PIN_CFG_DRIVE_STRENGTH | > > + PIN_CFG_SLEW_RATE | > > + PIN_CFG_INPUT_ENABLE | > > + PIN_CFG_IO_VOLTAGE_SD1))}, > > + { "SD1_DATA3", RZG2L_DEDICIATED_PIN_PACK(0x9, 3, (PIN_CFG_DRIVE_STRENGTH | > > + PIN_CFG_SLEW_RATE | > > + PIN_CFG_INPUT_ENABLE | > > + PIN_CFG_IO_VOLTAGE_SD1))}, > > + { "QSPI0_SPCLK", RZG2L_DEDICIATED_PIN_PACK(0xa, 0, (PIN_CFG_DRIVE_STRENGTH | > > + PIN_CFG_SLEW_RATE | > > + PIN_CFG_IO_VOLTAGE_QSPI))}, > > + { "QSPI0_IO0", RZG2L_DEDICIATED_PIN_PACK(0xa, 1, (PIN_CFG_DRIVE_STRENGTH | > > + PIN_CFG_SLEW_RATE | > > + PIN_CFG_IO_VOLTAGE_QSPI))}, > > + { "QSPI0_IO1", RZG2L_DEDICIATED_PIN_PACK(0xa, 2, (PIN_CFG_DRIVE_STRENGTH | > > + PIN_CFG_SLEW_RATE | > > + PIN_CFG_IO_VOLTAGE_QSPI))}, > > + { "QSPI0_IO2", RZG2L_DEDICIATED_PIN_PACK(0xa, 3, (PIN_CFG_DRIVE_STRENGTH | > > + PIN_CFG_SLEW_RATE | > > + PIN_CFG_IO_VOLTAGE_QSPI))}, > > + { "QSPI0_IO3", RZG2L_DEDICIATED_PIN_PACK(0xa, 4, (PIN_CFG_DRIVE_STRENGTH | > > + PIN_CFG_SLEW_RATE | > > + PIN_CFG_IO_VOLTAGE_QSPI))}, > > + { "QSPI0_SSL", RZG2L_DEDICIATED_PIN_PACK(0xa, 5, (PIN_CFG_DRIVE_STRENGTH | > > + PIN_CFG_SLEW_RATE | > > + PIN_CFG_IO_VOLTAGE_QSPI))}, > > + { "QSPI1_SPCLK", RZG2L_DEDICIATED_PIN_PACK(0xb, 0, (PIN_CFG_DRIVE_STRENGTH | > > + PIN_CFG_SLEW_RATE | > > + PIN_CFG_IO_VOLTAGE_QSPI))}, > > + { "QSPI1_IO0", RZG2L_DEDICIATED_PIN_PACK(0xb, 1, (PIN_CFG_DRIVE_STRENGTH | > > + PIN_CFG_SLEW_RATE | > > + PIN_CFG_IO_VOLTAGE_QSPI))}, > > + { "QSPI1_1", RZG2L_DEDICIATED_PIN_PACK(0xb, 2, (PIN_CFG_DRIVE_STRENGTH | > > + PIN_CFG_SLEW_RATE | > > + PIN_CFG_IO_VOLTAGE_QSPI))}, > > + { "QSPI1_IO2", RZG2L_DEDICIATED_PIN_PACK(0xb, 3, (PIN_CFG_DRIVE_STRENGTH | > > + PIN_CFG_SLEW_RATE | > > + PIN_CFG_IO_VOLTAGE_QSPI))}, > > + { "QSPI1_IO3", RZG2L_DEDICIATED_PIN_PACK(0xb, 4, (PIN_CFG_DRIVE_STRENGTH | > > + PIN_CFG_SLEW_RATE | > > + PIN_CFG_IO_VOLTAGE_QSPI))}, > > + { "QSPI1_SSL", RZG2L_DEDICIATED_PIN_PACK(0xb, 5, (PIN_CFG_DRIVE_STRENGTH | > > + PIN_CFG_SLEW_RATE | > > + PIN_CFG_IO_VOLTAGE_QSPI))}, > > + { "QSPI_RESET", RZG2L_DEDICIATED_PIN_PACK(0xc, 0, (PIN_CFG_DRIVE_STRENGTH | > > + PIN_CFG_SLEW_RATE | > > + PIN_CFG_IO_VOLTAGE_QSPI))}, > > + { "QSPI_WP", RZG2L_DEDICIATED_PIN_PACK(0xc, 1, (PIN_CFG_DRIVE_STRENGTH | > > + PIN_CFG_SLEW_RATE | > > + PIN_CFG_IO_VOLTAGE_QSPI))}, > > + { "QSPI_INT", RZG2L_DEDICIATED_PIN_PACK(0xc, 2, (PIN_CFG_DRIVE_STRENGTH | > > + PIN_CFG_SLEW_RATE | > > + PIN_CFG_IO_VOLTAGE_QSPI))}, > > + { "WDTOVF_PERROUT", RZG2L_DEDICIATED_PIN_PACK(0xd, 0, (PIN_CFG_DRIVE_STRENGTH | > > + PIN_CFG_SLEW_RATE))}, > > + { "RIIC0_SDA", RZG2L_DEDICIATED_PIN_PACK(0xe, 0, PIN_CFG_INPUT_ENABLE)}, > > + { "RIIC0_SCL", RZG2L_DEDICIATED_PIN_PACK(0xe, 1, PIN_CFG_INPUT_ENABLE)}, > > + { "RIIC1_SDA", RZG2L_DEDICIATED_PIN_PACK(0xe, 2, PIN_CFG_INPUT_ENABLE)}, > > + { "RIIC1_SCL", RZG2L_DEDICIATED_PIN_PACK(0xe, 3, PIN_CFG_INPUT_ENABLE)}, > > +}; > > + > > +static int rzg2l_gpio_register(struct rzg2l_pinctrl *pctrl) > > +{ > > + struct device_node *np = pctrl->dev->of_node; > > + struct gpio_chip *chip = &pctrl->gpio_chip; > > + const char *name = dev_name(pctrl->dev); > > + struct of_phandle_args of_args; > > + int ret; > > + > > + ret = of_parse_phandle_with_fixed_args(np, "gpio-ranges", 3, 0, &of_args); > > + if (ret) { > > + dev_err(pctrl->dev, "Unable to parse gpio-ranges\n"); > > + return ret; > > + } > > + > > + if (of_args.args[0] != 0 || of_args.args[1] != 0 || > > + of_args.args[2] != ARRAY_SIZE(rzg2l_gpio_names)) { > > + dev_err(pctrl->dev, "gpio-ranges does not match selected SOC\n"); > > + return -EINVAL; > > + } > > + > > + chip->names = rzg2l_gpio_names; > > + chip->request = rzg2l_gpio_request; > > + chip->free = rzg2l_gpio_free; > > + chip->get_direction = rzg2l_gpio_get_direction; > > + chip->direction_input = rzg2l_gpio_direction_input; > > + chip->direction_output = rzg2l_gpio_direction_output; > > + chip->get = rzg2l_gpio_get; > > + chip->set = rzg2l_gpio_set; > > + chip->label = name; > > + chip->parent = pctrl->dev; > > + chip->owner = THIS_MODULE; > > + chip->base = -1; > > + chip->ngpio = of_args.args[2]; > > + > > + pctrl->gpio_range.id = 0; > > + pctrl->gpio_range.pin_base = 0; > > + pctrl->gpio_range.base = 0; > > + pctrl->gpio_range.npins = chip->ngpio; > > + pctrl->gpio_range.name = chip->label; > > + pctrl->gpio_range.gc = chip; > > + ret = devm_gpiochip_add_data(pctrl->dev, chip, pctrl); > > + if (ret) { > > + dev_err(pctrl->dev, "failed to add GPIO controller\n"); > > + return ret; > > + } > > + > > + dev_dbg(pctrl->dev, "Registered gpio controller\n"); > > + > > + return 0; > > +} > > + > > +static int rzg2l_pinctrl_register(struct rzg2l_pinctrl *pctrl) > > +{ > > + struct pinctrl_pin_desc *pins; > > + unsigned int *pin_data; > > + unsigned int i, j; > > + int ret; > > + > > + pctrl->desc.name = DRV_NAME; > > + pctrl->desc.npins = pctrl->data->n_port_pins + pctrl->data->n_dedicated_pins; > > + pctrl->desc.pctlops = &rzg2l_pinctrl_pctlops; > > + pctrl->desc.pmxops = &rzg2l_pinctrl_pmxops; > > + pctrl->desc.confops = &rzg2l_pinctrl_confops; > > + pctrl->desc.owner = THIS_MODULE; > > + > > + pins = devm_kcalloc(pctrl->dev, pctrl->desc.npins, sizeof(*pins), GFP_KERNEL); > > + if (!pins) > > + return -ENOMEM; > > + > > + pin_data = devm_kcalloc(pctrl->dev, pctrl->desc.npins, > > + sizeof(unsigned int), GFP_KERNEL); > > + if (!pin_data) > > + return -ENOMEM; > > + > > + pctrl->pins = pins; > > + pctrl->desc.pins = pins; > > + > > + for (i = 0, j = 0; i < pctrl->data->n_port_pins; i++) { > > + pins[i].number = i; > > + pins[i].name = pctrl->data->port_pins[i]; > > + if (i && !(i % RZG2L_PINS_PER_PORT)) > > + j++; > > + pin_data[i] = pctrl->data->port_pin_configs[j]; > > + pins[i].drv_data = &pin_data[i]; > > + } > > + > > + for (i = 0; i < pctrl->data->n_dedicated_pins; i++) { > > + unsigned int index = pctrl->data->n_port_pins + i; > > + > > + pins[index].number = index; > > + pins[index].name = pctrl->data->dedicated_pins[i].name; > > + pin_data[index] = pctrl->data->dedicated_pins[i].config; > > + pins[index].drv_data = &pin_data[index]; > > + } > > + > > + ret = devm_pinctrl_register_and_init(pctrl->dev, &pctrl->desc, pctrl, > > + &pctrl->pctl); > > + if (ret) { > > + dev_err(pctrl->dev, "pinctrl registration failed\n"); > > + return ret; > > + } > > + > > + ret = pinctrl_enable(pctrl->pctl); > > + if (ret) { > > + dev_err(pctrl->dev, "pinctrl enable failed\n"); > > + return ret; > > + } > > + > > + ret = rzg2l_gpio_register(pctrl); > > + if (ret) { > > + dev_err(pctrl->dev, "failed to add GPIO chip: %i\n", ret); > > + return ret; > > + }; > > + > > + return 0; > > +} > > + > > +static int rzg2l_pinctrl_probe(struct platform_device *pdev) > > +{ > > + struct rzg2l_pinctrl *pctrl; > > + int ret; > > + > > + pctrl = devm_kzalloc(&pdev->dev, sizeof(*pctrl), GFP_KERNEL); > > + if (!pctrl) > > + return -ENOMEM; > > + > > + pctrl->dev = &pdev->dev; > > + > > + pctrl->data = of_device_get_match_data(&pdev->dev); > > + if (!pctrl->data) > > + return -EINVAL; > > + > > + pctrl->base = devm_platform_ioremap_resource(pdev, 0); > > + if (IS_ERR(pctrl->base)) > > + return PTR_ERR(pctrl->base); > > + > > + pctrl->clk = devm_clk_get(pctrl->dev, NULL); > > + if (IS_ERR(pctrl->clk)) { > > + ret = PTR_ERR(pctrl->clk); > > + dev_err(pctrl->dev, "failed to get GPIO clk : %i\n", ret); > > + return ret; > > + }; > > + > > + spin_lock_init(&pctrl->lock); > > + > > + ret = rzg2l_pinctrl_register(pctrl); > > + if (ret) > > + return ret; > > + > > + ret = clk_prepare_enable(pctrl->clk); > > + if (ret) { > > + dev_err(pctrl->dev, "failed to enable GPIO clk: %i\n", ret); > > + return ret; > > + }; > > + > > + platform_set_drvdata(pdev, pctrl); > > + > > + dev_info(pctrl->dev, "%s support registered\n", DRV_NAME); > > + return 0; > > +} > > + > > +static struct rzg2l_pinctrl_data r9a07g044_data = { > > + .port_pins = rzg2l_gpio_names, > > + .port_pin_configs = rzg2l_gpio_configs, > > + .dedicated_pins = rzg2l_dedicated_pins, > > + .n_port_pins = ARRAY_SIZE(rzg2l_gpio_names), > > + .n_dedicated_pins = ARRAY_SIZE(rzg2l_dedicated_pins), > > +}; > > + > > +static const struct of_device_id rzg2l_pinctrl_of_table[] = { > > + { > > + .compatible = "renesas,r9a07g044-pinctrl", > > + .data = &r9a07g044_data, > > + }, > > + { /* sentinel */ } > > +}; > > + > > +static struct platform_driver rzg2l_pinctrl_driver = { > > + .driver = { > > + .name = DRV_NAME, > > + .of_match_table = of_match_ptr(rzg2l_pinctrl_of_table), > > + }, > > + .probe = rzg2l_pinctrl_probe, > > +}; > > + > > +static int __init rzg2l_pinctrl_init(void) > > +{ > > + return platform_driver_register(&rzg2l_pinctrl_driver); > > +} > > +core_initcall(rzg2l_pinctrl_init); > > + > > +MODULE_AUTHOR("Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>"); > > +MODULE_DESCRIPTION("Pin and gpio controller driver for RZ/G2L family"); > > +MODULE_LICENSE("GPL v2"); > > -- > > 2.17.1 > > > > > -- > Gr{oetje,eeting}s, > > Geert > > -- > Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@linux-m68k.org > > In personal conversations with technical people, I call myself a hacker. But > when I'm talking to journalists I just say "programmer" or something like that. > -- Linus Torvalds
diff --git a/drivers/pinctrl/renesas/Kconfig b/drivers/pinctrl/renesas/Kconfig index 4b84a744ae87..16ce795460f2 100644 --- a/drivers/pinctrl/renesas/Kconfig +++ b/drivers/pinctrl/renesas/Kconfig @@ -176,6 +176,17 @@ config PINCTRL_RZA2 help This selects GPIO and pinctrl driver for Renesas RZ/A2 platforms. +config PINCTRL_RZG2L + bool "pin control support for RZ/G2L" + depends on OF + depends on ARCH_R9A07G044 || COMPILE_TEST + select GPIOLIB + select GENERIC_PINCTRL_GROUPS + select GENERIC_PINMUX_FUNCTIONS + select GENERIC_PINCONF + help + This selects GPIO and pinctrl driver for Renesas RZ/G2L platforms. + config PINCTRL_PFC_R8A77470 bool "pin control support for RZ/G1C" if COMPILE_TEST select PINCTRL_SH_PFC diff --git a/drivers/pinctrl/renesas/Makefile b/drivers/pinctrl/renesas/Makefile index 353563228dc2..7d9238a9ef57 100644 --- a/drivers/pinctrl/renesas/Makefile +++ b/drivers/pinctrl/renesas/Makefile @@ -46,6 +46,7 @@ obj-$(CONFIG_PINCTRL_PFC_SHX3) += pfc-shx3.o obj-$(CONFIG_PINCTRL_RZA1) += pinctrl-rza1.o obj-$(CONFIG_PINCTRL_RZA2) += pinctrl-rza2.o +obj-$(CONFIG_PINCTRL_RZG2L) += pinctrl-rzg2l.o obj-$(CONFIG_PINCTRL_RZN1) += pinctrl-rzn1.o ifeq ($(CONFIG_COMPILE_TEST),y) diff --git a/drivers/pinctrl/renesas/pinctrl-rzg2l.c b/drivers/pinctrl/renesas/pinctrl-rzg2l.c new file mode 100644 index 000000000000..3e786f15d009 --- /dev/null +++ b/drivers/pinctrl/renesas/pinctrl-rzg2l.c @@ -0,0 +1,1196 @@ +// SPDX-License-Identifier: GPL-2.0 +/* + * Renesas RZ/G2L Pin Control and GPIO driver core + * + * Copyright (C) 2021 Renesas Electronics Corporation. + */ + +#include <linux/bitops.h> +#include <linux/clk.h> +#include <linux/gpio/driver.h> +#include <linux/io.h> +#include <linux/module.h> +#include <linux/of_device.h> +#include <linux/pinctrl/pinconf-generic.h> +#include <linux/pinctrl/pinconf.h> +#include <linux/pinctrl/pinctrl.h> +#include <linux/pinctrl/pinmux.h> +#include <linux/spinlock.h> + +#include <dt-bindings/pinctrl/rzg2l-pinctrl.h> + +#include "../core.h" +#include "../pinconf.h" +#include "../pinmux.h" + +#define DRV_NAME "pinctrl-rzg2l" + +/* + * Use 16 lower bits [15:0] for pin identifier + * Use 16 higher bits [31:16] for pin mux function + */ +#define MUX_PIN_ID_MASK GENMASK(15, 0) +#define MUX_FUNC_MASK GENMASK(31, 16) +#define MUX_FUNC_OFFS 16 +#define MUX_FUNC(pinconf) (((pinconf) & MUX_FUNC_MASK) >> MUX_FUNC_OFFS) + +/* PIN capabilities */ +#define PIN_CFG_DRIVE_STRENGTH BIT(0) +#define PIN_CFG_SLEW_RATE BIT(1) +#define PIN_CFG_INPUT_ENABLE BIT(2) +#define PIN_CFG_PULL_UP_DOWN BIT(3) +#define PIN_CFG_IO_VOLTAGE_SD0 BIT(4) +#define PIN_CFG_IO_VOLTAGE_SD1 BIT(5) +#define PIN_CFG_IO_VOLTAGE_QSPI BIT(6) +#define PIN_CFG_IO_VOLTAGE_ETH0 BIT(7) +#define PIN_CFG_IO_VOLTAGE_ETH1 BIT(8) +#define PIN_CFG_FILONOFF BIT(9) +#define PIN_CFG_FILNUM BIT(10) +#define PIN_CFG_FILCLKSEL BIT(11) + +#define RZG2L_MULTIPLEXED_PIN_FUNCS (PIN_CFG_DRIVE_STRENGTH | \ + PIN_CFG_SLEW_RATE | \ + PIN_CFG_PULL_UP_DOWN | \ + PIN_CFG_FILONOFF | \ + PIN_CFG_FILNUM | \ + PIN_CFG_FILCLKSEL) + +#define RZG2L_MULTIPLEXED_ETH_PIN_FUNCS(x) ((x) | \ + PIN_CFG_FILONOFF | \ + PIN_CFG_FILNUM | \ + PIN_CFG_FILCLKSEL) + +/* + * n indicates number of pins in the port, a is the register index + * and f is pin configuration capabilities supported. + */ +#define RZG2L_GPIO_PORT_PACK(n, a, f) (((n) << 28) | ((a) << 20) | (f)) +#define RZG2L_GPIO_PORT_GET_PINCNT(x) ((((x) & ~GENMASK(28, 0)) >> 28) & 0x7) +#define RZG2L_GPIO_PORT_GET_INDEX(x) ((((x) & ~GENMASK(19, 0) & ~GENMASK(31, 28)) >> 20) & 0x7f) +#define RZG2L_GPIO_PORT_GET_CFGS(x) ((x) & ~GENMASK(31, 20)) + +/* + * BIT(31) indicates as dedicated pin, p is the register index while + * referencing to SR/IEN/IOLH/FILxx registers, b is the register bits + * (b * 8) and f is the pin configuration capabilities supported. + */ +#define RZG2L_DEDICIATED_PIN BIT(31) +#define RZG2L_DEDICIATED_PIN_PACK(p, b, f) (RZG2L_DEDICIATED_PIN | \ + ((p) << 24) | ((b) << 20) | (f)) +#define RZG2L_DEDICIATED_PIN_GET_PORT(x) ((((x) & ~GENMASK(23, 0)) >> 24) & 0x7f) +#define RZG2L_DEDICIATED_PIN_GET_BIT(x) ((((x) & ~GENMASK(19, 0)) >> 20) & 0x7) +#define RZG2L_DEDICIATED_PIN_GET_CFGS(x) ((x) & ~GENMASK(31, 20)) + +#define P(n) (0x0000 + 0x10 + (n)) +#define PM(n) (0x0100 + 0x20 + (n) * 2) +#define PMC(n) (0x0200 + 0x10 + (n)) +#define PFC(n) (0x0400 + 0x40 + (n) * 4) +#define PIN(n) (0x0800 + 0x10 + (n)) +#define IEN(n) (0x1800 + (n) * 8) +#define PWPR (0x3014) +#define SD_CH(n) (0x3000 + (n) * 4) + +#define PVDD_1800 1 /* I/O domain voltage <= 1.8V */ +#define PVDD_3300 0 /* I/O domain voltage >= 3.3V */ + +#define PWPR_B0WI BIT(7) /* Bit Write Disable */ +#define PWPR_PFCWE BIT(6) /* PFC Register Write Enable */ + +#define PM_MASK 0x03 +#define PVDD_MASK 0x01 +#define PFC_MASK 0x07 +#define IEN_MASK 0x01 + +#define PM_INPUT 0x1 +#define PM_OUTPUT 0x2 + +#define RZG2L_PIN_ID_TO_PORT(id) ((id) / RZG2L_PINS_PER_PORT) +#define RZG2L_PIN_ID_TO_PIN(id) ((id) % RZG2L_PINS_PER_PORT) + +struct rzg2l_dedicated_configs { + const char *name; + unsigned int config; +}; + +struct rzg2l_pinctrl_data { + const char * const *port_pins; + const unsigned int *port_pin_configs; + struct rzg2l_dedicated_configs *dedicated_pins; + unsigned int n_port_pins; + unsigned int n_dedicated_pins; +}; + +struct rzg2l_pinctrl { + struct pinctrl_dev *pctl; + struct pinctrl_desc desc; + struct pinctrl_pin_desc *pins; + + const struct rzg2l_pinctrl_data *data; + void __iomem *base; + struct device *dev; + struct clk *clk; + + struct gpio_chip gpio_chip; + struct pinctrl_gpio_range gpio_range; + + spinlock_t lock; +}; + +static void rzg2l_pinctrl_set_pfc_mode(struct rzg2l_pinctrl *pctrl, + u8 port, u8 pin, u8 func) +{ + unsigned long flags; + u32 reg32; + u16 reg16; + u8 reg8; + + spin_lock_irqsave(&pctrl->lock, flags); + + /* Set pin to 'Non-use (Hi-Z input protection)' */ + reg16 = readw(pctrl->base + PM(port)); + reg16 &= ~(PM_MASK << (pin * 2)); + writew(reg16, pctrl->base + PM(port)); + + /* Temporarily switch to GPIO mode with PMC register */ + reg8 = readb(pctrl->base + PMC(port)); + writeb(reg8 & ~BIT(pin), pctrl->base + PMC(port)); + + /* Set the PWPR register to allow PFC register to write */ + writel(0x0, pctrl->base + PWPR); /* B0WI=0, PFCWE=0 */ + writel(PWPR_PFCWE, pctrl->base + PWPR); /* B0WI=0, PFCWE=1 */ + + /* Select Pin function mode with PFC register */ + reg32 = readl(pctrl->base + PFC(port)); + reg32 &= ~(PFC_MASK << (pin * 4)); + writel(reg32 | (func << (pin * 4)), pctrl->base + PFC(port)); + + /* Set the PWPR register to be write-protected */ + writel(0x0, pctrl->base + PWPR); /* B0WI=0, PFCWE=0 */ + writel(PWPR_B0WI, pctrl->base + PWPR); /* B0WI=1, PFCWE=0 */ + + /* Switch to Peripheral pin function with PMC register */ + reg8 = readb(pctrl->base + PMC(port)); + writeb(reg8 | BIT(pin), pctrl->base + PMC(port)); + + spin_unlock_irqrestore(&pctrl->lock, flags); +}; + +static int rzg2l_pinctrl_set_mux(struct pinctrl_dev *pctldev, + unsigned int func_selector, + unsigned int group_selector) +{ + struct rzg2l_pinctrl *pctrl = pinctrl_dev_get_drvdata(pctldev); + struct function_desc *func; + unsigned int i, *psel_val; + struct group_desc *group; + unsigned long data; + int *pins; + + func = pinmux_generic_get_function(pctldev, func_selector); + if (!func) + return -EINVAL; + group = pinctrl_generic_get_group(pctldev, group_selector); + if (!group) + return -EINVAL; + + psel_val = func->data; + pins = group->pins; + data = (unsigned long)group->data; + + for (i = 0; i < group->num_pins; i++) { + dev_dbg(pctrl->dev, "port:%u pin: %u PSEL:%u\n", + RZG2L_PIN_ID_TO_PORT(pins[i]), RZG2L_PIN_ID_TO_PIN(pins[i]), + psel_val[i]); + rzg2l_pinctrl_set_pfc_mode(pctrl, RZG2L_PIN_ID_TO_PORT(pins[i]), + RZG2L_PIN_ID_TO_PIN(pins[i]), psel_val[i]); + } + + return 0; +}; + +static int rzg2l_map_add_config(struct pinctrl_map *map, + const char *group_or_pin, + enum pinctrl_map_type type, + unsigned long *configs, + unsigned int num_configs) +{ + unsigned long *cfgs; + + cfgs = kmemdup(configs, num_configs * sizeof(*cfgs), + GFP_KERNEL); + if (!cfgs) + return -ENOMEM; + + map->type = type; + map->data.configs.group_or_pin = group_or_pin; + map->data.configs.configs = cfgs; + map->data.configs.num_configs = num_configs; + + return 0; +} + +static int rzg2l_dt_subnode_to_map(struct pinctrl_dev *pctldev, + struct device_node *np, + struct pinctrl_map **map, + unsigned int *num_maps, + unsigned int *index) +{ + struct rzg2l_pinctrl *pctrl = pinctrl_dev_get_drvdata(pctldev); + unsigned long *configs = NULL; + unsigned int idx = *index; + struct property *pinmux; + unsigned int nmaps = *num_maps; + struct pinctrl_map *maps = *map; + unsigned int num_pins; + unsigned int num_configs; + unsigned int num_pinmux = 0; + unsigned int *pins, *psel_val; + int i, ret, gsel, fsel; + const char **pin_fn; + struct property *prop; + const char *pin; + + pinmux = of_find_property(np, "pinmux", NULL); + if (pinmux) + num_pinmux = pinmux->length / sizeof(u32); + + ret = of_property_count_strings(np, "pins"); + if (ret == -EINVAL) { + num_pins = 0; + } else if (ret < 0) { + dev_err(pctrl->dev, "Invalid pins list in DT\n"); + return ret; + } else { + num_pins = ret; + } + + if (!num_pinmux && !num_pins) + return 0; + + if (num_pinmux && num_pins) { + dev_err(pctrl->dev, + "DT node must contain either a pinmux or pins and not both\n"); + return -EINVAL; + } + + ret = pinconf_generic_parse_dt_config(np, NULL, &configs, &num_configs); + if (ret < 0) + return ret; + + if (num_pins && !num_configs) { + dev_err(pctrl->dev, "DT node must contain a config\n"); + ret = -ENODEV; + goto done; + } + + if (num_pinmux) + nmaps += 1; + + if (num_pins) + nmaps += num_pins; + + maps = krealloc(maps, sizeof(*maps) * nmaps, GFP_KERNEL); + if (!maps) { + ret = -ENOMEM; + goto done; + } + + *map = maps; + *num_maps = nmaps; + if (num_pins) { + of_property_for_each_string(np, "pins", prop, pin) { + ret = rzg2l_map_add_config(&maps[idx], pin, + PIN_MAP_TYPE_CONFIGS_PIN, + configs, num_configs); + if (ret < 0) + goto done; + + idx++; + } + ret = 0; + goto done; + } + + pins = devm_kcalloc(pctrl->dev, num_pinmux, sizeof(*pins), GFP_KERNEL); + psel_val = devm_kcalloc(pctrl->dev, num_pinmux, sizeof(*psel_val), + GFP_KERNEL); + pin_fn = devm_kzalloc(pctrl->dev, sizeof(*pin_fn), GFP_KERNEL); + if (!pins || !psel_val || !pin_fn) { + ret = -ENOMEM; + goto done; + } + + /* Collect pin locations and mux settings from DT properties */ + for (i = 0; i < num_pinmux; ++i) { + u32 value; + + ret = of_property_read_u32_index(np, "pinmux", i, &value); + if (ret) + goto done; + pins[i] = value & MUX_PIN_ID_MASK; + psel_val[i] = MUX_FUNC(value); + } + + /* Register a single pin group listing all the pins we read from DT */ + gsel = pinctrl_generic_add_group(pctldev, np->name, pins, num_pinmux, NULL); + if (gsel < 0) { + ret = gsel; + goto done; + } + + /* + * Register a single group function where the 'data' is an array PSEL + * register values read from DT. + */ + pin_fn[0] = np->name; + fsel = pinmux_generic_add_function(pctldev, np->name, pin_fn, 1, + psel_val); + if (fsel < 0) { + ret = fsel; + goto remove_group; + } + + maps[idx].type = PIN_MAP_TYPE_MUX_GROUP; + maps[idx].data.mux.group = np->name; + maps[idx].data.mux.function = np->name; + idx++; + + dev_dbg(pctrl->dev, "Parsed %pOF with %d pins\n", np, num_pinmux); + ret = 0; + goto done; + +remove_group: + pinctrl_generic_remove_group(pctldev, gsel); +done: + *index = idx; + kfree(configs); + return ret; +} + +static void rzg2l_dt_free_map(struct pinctrl_dev *pctldev, + struct pinctrl_map *map, + unsigned int num_maps) +{ + unsigned int i; + + if (!map) + return; + + for (i = 0; i < num_maps; ++i) { + if (map[i].type == PIN_MAP_TYPE_CONFIGS_GROUP || + map[i].type == PIN_MAP_TYPE_CONFIGS_PIN) + kfree(map[i].data.configs.configs); + } + kfree(map); +} + +static int rzg2l_dt_node_to_map(struct pinctrl_dev *pctldev, + struct device_node *np, + struct pinctrl_map **map, + unsigned int *num_maps) +{ + struct rzg2l_pinctrl *pctrl = pinctrl_dev_get_drvdata(pctldev); + struct device_node *child; + unsigned int index; + int ret; + + *map = NULL; + *num_maps = 0; + index = 0; + + for_each_child_of_node(np, child) { + ret = rzg2l_dt_subnode_to_map(pctldev, child, map, + num_maps, &index); + if (ret < 0) { + of_node_put(child); + goto done; + } + } + + if (*num_maps == 0) { + ret = rzg2l_dt_subnode_to_map(pctldev, np, map, + num_maps, &index); + if (ret < 0) + goto done; + } + + if (*num_maps) + return 0; + + dev_err(pctrl->dev, "no mapping found in node %pOF\n", np); + ret = -EINVAL; + +done: + if (ret < 0) + rzg2l_dt_free_map(pctldev, *map, *num_maps); + + return ret; +} + +static int rzg2l_pinctrl_pinconf_get(struct pinctrl_dev *pctldev, + unsigned int _pin, + unsigned long *config) +{ + struct rzg2l_pinctrl *pctrl = pinctrl_dev_get_drvdata(pctldev); + enum pin_config_param param = pinconf_to_config_param(*config); + const struct pinctrl_pin_desc *pin = &pctrl->desc.pins[_pin]; + unsigned int *pin_data = pin->drv_data; + unsigned int arg = 0; + unsigned long flags; + void __iomem *addr; + u32 port = 0, reg; + u32 cfg = 0; + u8 bit = 0; + + if (!pin_data) + return -EINVAL; + + if (*pin_data & RZG2L_DEDICIATED_PIN) { + port = RZG2L_DEDICIATED_PIN_GET_PORT(*pin_data); + cfg = RZG2L_DEDICIATED_PIN_GET_CFGS(*pin_data); + bit = RZG2L_DEDICIATED_PIN_GET_BIT(*pin_data); + } + + switch (param) { + case PIN_CONFIG_INPUT_ENABLE: + if (!(cfg & PIN_CFG_INPUT_ENABLE)) + return -EINVAL; + spin_lock_irqsave(&pctrl->lock, flags); + /* handle _L/_H for 32-bit register read/write */ + addr = pctrl->base + IEN(port) + ((bit > 3) ? 0x4 : 0x0); + if (bit > 3) + bit -= 4; + + reg = readl(addr) & (IEN_MASK << (bit * 8)); + arg = (reg >> (bit * 8)) & 0x1; + spin_unlock_irqrestore(&pctrl->lock, flags); + break; + + case PIN_CONFIG_POWER_SOURCE: + if (!((cfg & PIN_CFG_IO_VOLTAGE_SD0) || (cfg & PIN_CFG_IO_VOLTAGE_SD1))) + return -EINVAL; + + spin_lock_irqsave(&pctrl->lock, flags); + addr = pctrl->base + ((cfg == PIN_CFG_IO_VOLTAGE_SD0) ? SD_CH(0) : SD_CH(1)); + arg = (readl(addr) & PVDD_MASK) ? 1800 : 3300; + spin_unlock_irqrestore(&pctrl->lock, flags); + break; + + default: + return -ENOTSUPP; + } + + *config = pinconf_to_config_packed(param, arg); + + return 0; +}; + +static int rzg2l_pinctrl_pinconf_set(struct pinctrl_dev *pctldev, + unsigned int _pin, + unsigned long *_configs, + unsigned int num_configs) +{ + struct rzg2l_pinctrl *pctrl = pinctrl_dev_get_drvdata(pctldev); + const struct pinctrl_pin_desc *pin = &pctrl->desc.pins[_pin]; + unsigned int *pin_data = pin->drv_data; + enum pin_config_param param; + unsigned long flags; + void __iomem *addr; + u32 port = 0, reg; + unsigned int i; + u32 cfg = 0; + u8 bit = 0; + + if (!pin_data) + return -EINVAL; + + if (*pin_data & BIT(31)) { + port = RZG2L_DEDICIATED_PIN_GET_PORT(*pin_data); + cfg = RZG2L_DEDICIATED_PIN_GET_CFGS(*pin_data); + bit = RZG2L_DEDICIATED_PIN_GET_BIT(*pin_data); + } + + for (i = 0; i < num_configs; i++) { + param = pinconf_to_config_param(_configs[i]); + switch (param) { + case PIN_CONFIG_INPUT_ENABLE: { + unsigned int arg = + pinconf_to_config_argument(_configs[i]); + + if (!(cfg & PIN_CFG_INPUT_ENABLE)) + return -EINVAL; + + /* handle _L/_H for 32-bit register read/write */ + addr = pctrl->base + IEN(port) + ((bit > 3) ? 0x4 : 0x0); + if (bit > 3) + bit -= 4; + + spin_lock_irqsave(&pctrl->lock, flags); + reg = readl(addr) & ~(IEN_MASK << (bit * 8)); + writel(reg | (arg << (bit * 8)), addr); + spin_unlock_irqrestore(&pctrl->lock, flags); + break; + } + + case PIN_CONFIG_POWER_SOURCE: { + unsigned int mV = pinconf_to_config_argument(_configs[i]); + + if (mV != 1800 && mV != 3300) + return -EINVAL; + + if (!(cfg & PIN_CFG_IO_VOLTAGE_SD0 || cfg & PIN_CFG_IO_VOLTAGE_SD1)) + return -EINVAL; + + addr = pctrl->base + ((cfg == PIN_CFG_IO_VOLTAGE_SD0) ? + SD_CH(0) : SD_CH(1)); + spin_lock_irqsave(&pctrl->lock, flags); + writel((mV == 1800) ? PVDD_1800 : PVDD_3300, addr); + spin_unlock_irqrestore(&pctrl->lock, flags); + break; + } + default: + return -EOPNOTSUPP; + } + } + + return 0; +} + +static int rzg2l_pinctrl_pinconf_group_set(struct pinctrl_dev *pctldev, + unsigned int group, + unsigned long *configs, + unsigned int num_configs) +{ + const unsigned int *pins; + unsigned int i, npins; + int ret; + + ret = pinctrl_generic_get_group_pins(pctldev, group, &pins, &npins); + if (ret) + return ret; + + for (i = 0; i < npins; i++) { + ret = rzg2l_pinctrl_pinconf_set(pctldev, pins[i], configs, + num_configs); + if (ret) + return ret; + } + + return 0; +}; + +static int rzg2l_pinctrl_pinconf_group_get(struct pinctrl_dev *pctldev, + unsigned int group, + unsigned long *config) +{ + const unsigned int *pins; + unsigned int i, npins, prev_config = 0; + int ret; + + ret = pinctrl_generic_get_group_pins(pctldev, group, &pins, &npins); + if (ret) + return ret; + + for (i = 0; i < npins; i++) { + ret = rzg2l_pinctrl_pinconf_get(pctldev, pins[i], config); + if (ret) + return ret; + + /* Check config matching between to pin */ + if (i && prev_config != *config) + return -EOPNOTSUPP; + + prev_config = *config; + } + + return 0; +}; + +static const struct pinctrl_ops rzg2l_pinctrl_pctlops = { + .get_groups_count = pinctrl_generic_get_group_count, + .get_group_name = pinctrl_generic_get_group_name, + .get_group_pins = pinctrl_generic_get_group_pins, + .dt_node_to_map = rzg2l_dt_node_to_map, + .dt_free_map = rzg2l_dt_free_map, +}; + +static const struct pinmux_ops rzg2l_pinctrl_pmxops = { + .get_functions_count = pinmux_generic_get_function_count, + .get_function_name = pinmux_generic_get_function_name, + .get_function_groups = pinmux_generic_get_function_groups, + .set_mux = rzg2l_pinctrl_set_mux, + .strict = true, +}; + +static const struct pinconf_ops rzg2l_pinctrl_confops = { + .is_generic = true, + .pin_config_get = rzg2l_pinctrl_pinconf_get, + .pin_config_set = rzg2l_pinctrl_pinconf_set, + .pin_config_group_set = rzg2l_pinctrl_pinconf_group_set, + .pin_config_group_get = rzg2l_pinctrl_pinconf_group_get, + .pin_config_config_dbg_show = pinconf_generic_dump_config, +}; + +static int rzg2l_gpio_request(struct gpio_chip *chip, unsigned int offset) +{ + struct rzg2l_pinctrl *pctrl = gpiochip_get_data(chip); + u32 port = RZG2L_PIN_ID_TO_PORT(offset); + u8 bit = RZG2L_PIN_ID_TO_PIN(offset); + unsigned long flags; + u8 reg8; + int ret; + + ret = pinctrl_gpio_request(chip->base + offset); + if (ret) + return ret; + + spin_lock_irqsave(&pctrl->lock, flags); + + /* Select GPIO mode in PMC Register */ + reg8 = readb(pctrl->base + PMC(port)); + reg8 &= ~BIT(bit); + writeb(reg8, pctrl->base + PMC(port)); + + spin_unlock_irqrestore(&pctrl->lock, flags); + + return 0; +} + +static void rzg2l_gpio_set_direction(struct rzg2l_pinctrl *pctrl, u32 port, + u8 bit, bool output) +{ + unsigned long flags; + u16 reg16; + + spin_lock_irqsave(&pctrl->lock, flags); + + reg16 = readw(pctrl->base + PM(port)); + reg16 &= ~(PM_MASK << (bit * 2)); + + reg16 |= (output ? PM_OUTPUT : PM_INPUT) << (bit * 2); + writew(reg16, pctrl->base + PM(port)); + + spin_unlock_irqrestore(&pctrl->lock, flags); +} + +static int rzg2l_gpio_get_direction(struct gpio_chip *chip, unsigned int offset) +{ + struct rzg2l_pinctrl *pctrl = gpiochip_get_data(chip); + u32 port = RZG2L_PIN_ID_TO_PORT(offset); + u8 bit = RZG2L_PIN_ID_TO_PIN(offset); + + if (!(readb(pctrl->base + PMC(port)) & BIT(bit))) { + u16 reg16; + + reg16 = readw(pctrl->base + PM(port)); + reg16 = (reg16 >> (bit * 2)) & PM_MASK; + if (reg16 == PM_OUTPUT) + return GPIO_LINE_DIRECTION_OUT; + } + + return GPIO_LINE_DIRECTION_IN; +} + +static int rzg2l_gpio_direction_input(struct gpio_chip *chip, + unsigned int offset) +{ + struct rzg2l_pinctrl *pctrl = gpiochip_get_data(chip); + u32 port = RZG2L_PIN_ID_TO_PORT(offset); + u8 bit = RZG2L_PIN_ID_TO_PIN(offset); + + rzg2l_gpio_set_direction(pctrl, port, bit, false); + + return 0; +} + +static void rzg2l_gpio_set(struct gpio_chip *chip, unsigned int offset, + int value) +{ + struct rzg2l_pinctrl *pctrl = gpiochip_get_data(chip); + u32 port = RZG2L_PIN_ID_TO_PORT(offset); + u8 bit = RZG2L_PIN_ID_TO_PIN(offset); + unsigned long flags; + u8 reg8; + + spin_lock_irqsave(&pctrl->lock, flags); + + reg8 = readb(pctrl->base + P(port)); + + if (value) + writeb(reg8 | BIT(bit), pctrl->base + P(port)); + else + writeb(reg8 & ~BIT(bit), pctrl->base + P(port)); + + spin_unlock_irqrestore(&pctrl->lock, flags); +} + +static int rzg2l_gpio_direction_output(struct gpio_chip *chip, + unsigned int offset, int value) +{ + struct rzg2l_pinctrl *pctrl = gpiochip_get_data(chip); + u32 port = RZG2L_PIN_ID_TO_PORT(offset); + u8 bit = RZG2L_PIN_ID_TO_PIN(offset); + + rzg2l_gpio_set(chip, offset, value); + rzg2l_gpio_set_direction(pctrl, port, bit, true); + + return 0; +} + +static int rzg2l_gpio_get(struct gpio_chip *chip, unsigned int offset) +{ + struct rzg2l_pinctrl *pctrl = gpiochip_get_data(chip); + u32 port = RZG2L_PIN_ID_TO_PORT(offset); + u8 bit = RZG2L_PIN_ID_TO_PIN(offset); + u16 reg16; + + reg16 = readw(pctrl->base + PM(port)); + reg16 = (reg16 >> (bit * 2)) & PM_MASK; + + if (reg16 == PM_INPUT) + return !!(readb(pctrl->base + PIN(port)) & BIT(bit)); + else if (reg16 == PM_OUTPUT) + return !!(readb(pctrl->base + P(port)) & BIT(bit)); + else + return -EINVAL; +} + +static void rzg2l_gpio_free(struct gpio_chip *chip, unsigned int offset) +{ + pinctrl_gpio_free(chip->base + offset); + + /* + * Set the GPIO as an input to ensure that the next GPIO request won't + * drive the GPIO pin as an output. + */ + rzg2l_gpio_direction_input(chip, offset); +} + +static const char * const rzg2l_gpio_names[] = { + "P0_0", "P0_1", "P0_2", "P0_3", "P0_4", "P0_5", "P0_6", "P0_7", + "P1_0", "P1_1", "P1_2", "P1_3", "P1_4", "P1_5", "P1_6", "P1_7", + "P2_0", "P2_1", "P2_2", "P2_3", "P2_4", "P2_5", "P2_6", "P2_7", + "P3_0", "P3_1", "P3_2", "P3_3", "P3_4", "P3_5", "P3_6", "P3_7", + "P4_0", "P4_1", "P4_2", "P4_3", "P4_4", "P4_5", "P4_6", "P4_7", + "P5_0", "P5_1", "P5_2", "P5_3", "P5_4", "P5_5", "P5_6", "P5_7", + "P6_0", "P6_1", "P6_2", "P6_3", "P6_4", "P6_5", "P6_6", "P6_7", + "P7_0", "P7_1", "P7_2", "P7_3", "P7_4", "P7_5", "P7_6", "P7_7", + "P8_0", "P8_1", "P8_2", "P8_3", "P8_4", "P8_5", "P8_6", "P8_7", + "P9_0", "P9_1", "P9_2", "P9_3", "P9_4", "P9_5", "P9_6", "P9_7", + "P10_0", "P10_1", "P10_2", "P10_3", "P10_4", "P10_5", "P10_6", "P10_7", + "P11_0", "P11_1", "P11_2", "P11_3", "P11_4", "P11_5", "P11_6", "P11_7", + "P12_0", "P12_1", "P12_2", "P12_3", "P12_4", "P12_5", "P12_6", "P12_7", + "P13_0", "P13_1", "P13_2", "P13_3", "P13_4", "P13_5", "P13_6", "P13_7", + "P14_0", "P14_1", "P14_2", "P14_3", "P14_4", "P14_5", "P14_6", "P14_7", + "P15_0", "P15_1", "P15_2", "P15_3", "P15_4", "P15_5", "P15_6", "P15_7", + "P16_0", "P16_1", "P16_2", "P16_3", "P16_4", "P16_5", "P16_6", "P16_7", + "P17_0", "P17_1", "P17_2", "P17_3", "P17_4", "P17_5", "P17_6", "P17_7", + "P18_0", "P18_1", "P18_2", "P18_3", "P18_4", "P18_5", "P18_6", "P18_7", + "P19_0", "P19_1", "P19_2", "P19_3", "P19_4", "P19_5", "P19_6", "P19_7", + "P20_0", "P20_1", "P20_2", "P20_3", "P20_4", "P20_5", "P20_6", "P20_7", + "P21_0", "P21_1", "P21_2", "P21_3", "P21_4", "P21_5", "P21_6", "P21_7", + "P22_0", "P22_1", "P22_2", "P22_3", "P22_4", "P22_5", "P22_6", "P22_7", + "P23_0", "P23_1", "P23_2", "P23_3", "P23_4", "P23_5", "P23_6", "P23_7", + "P24_0", "P24_1", "P24_2", "P24_3", "P24_4", "P24_5", "P24_6", "P24_7", + "P25_0", "P25_1", "P25_2", "P25_3", "P25_4", "P25_5", "P25_6", "P25_7", + "P26_0", "P26_1", "P26_2", "P26_3", "P26_4", "P26_5", "P26_6", "P26_7", + "P27_0", "P27_1", "P27_2", "P27_3", "P27_4", "P27_5", "P27_6", "P27_7", + "P28_0", "P28_1", "P28_2", "P28_3", "P28_4", "P28_5", "P28_6", "P28_7", + "P29_0", "P29_1", "P29_2", "P29_3", "P29_4", "P29_5", "P29_6", "P29_7", + "P30_0", "P30_1", "P30_2", "P30_3", "P30_4", "P30_5", "P30_6", "P30_7", + "P31_0", "P31_1", "P31_2", "P31_3", "P31_4", "P31_5", "P31_6", "P31_7", + "P32_0", "P32_1", "P32_2", "P32_3", "P32_4", "P32_5", "P32_6", "P32_7", + "P33_0", "P33_1", "P33_2", "P33_3", "P33_4", "P33_5", "P33_6", "P33_7", + "P34_0", "P34_1", "P34_2", "P34_3", "P34_4", "P34_5", "P34_6", "P34_7", + "P35_0", "P35_1", "P35_2", "P35_3", "P35_4", "P35_5", "P35_6", "P35_7", + "P36_0", "P36_1", "P36_2", "P36_3", "P36_4", "P36_5", "P36_6", "P36_7", + "P37_0", "P37_1", "P37_2", "P37_3", "P37_4", "P37_5", "P37_6", "P37_7", + "P38_0", "P38_1", "P38_2", "P38_3", "P38_4", "P38_5", "P38_6", "P38_7", + "P39_0", "P39_1", "P39_2", "P39_3", "P39_4", "P39_5", "P39_6", "P39_7", + "P40_0", "P40_1", "P40_2", "P40_3", "P40_4", "P40_5", "P40_6", "P40_7", + "P41_0", "P41_1", "P41_2", "P41_3", "P41_4", "P41_5", "P41_6", "P41_7", + "P42_0", "P42_1", "P42_2", "P42_3", "P42_4", "P42_5", "P42_6", "P42_7", + "P43_0", "P43_1", "P43_2", "P43_3", "P43_4", "P43_5", "P43_6", "P43_7", + "P44_0", "P44_1", "P44_2", "P44_3", "P44_4", "P44_5", "P44_6", "P44_7", + "P45_0", "P45_1", "P45_2", "P45_3", "P45_4", "P45_5", "P45_6", "P45_7", + "P46_0", "P46_1", "P46_2", "P46_3", "P46_4", "P46_5", "P46_6", "P46_7", + "P47_0", "P47_1", "P47_2", "P47_3", "P47_4", "P47_5", "P47_6", "P47_7", + "P48_0", "P48_1", "P48_2", "P48_3", "P48_4", "P48_5", "P48_6", "P48_7", +}; + +static const u32 rzg2l_gpio_configs[] = { + RZG2L_GPIO_PORT_PACK(2, 0x10, RZG2L_MULTIPLEXED_PIN_FUNCS), + RZG2L_GPIO_PORT_PACK(2, 0x11, RZG2L_MULTIPLEXED_PIN_FUNCS), + RZG2L_GPIO_PORT_PACK(2, 0x12, RZG2L_MULTIPLEXED_PIN_FUNCS), + RZG2L_GPIO_PORT_PACK(2, 0x13, RZG2L_MULTIPLEXED_PIN_FUNCS), + RZG2L_GPIO_PORT_PACK(2, 0x14, RZG2L_MULTIPLEXED_PIN_FUNCS), + RZG2L_GPIO_PORT_PACK(3, 0x15, RZG2L_MULTIPLEXED_PIN_FUNCS), + RZG2L_GPIO_PORT_PACK(2, 0x16, RZG2L_MULTIPLEXED_PIN_FUNCS), + RZG2L_GPIO_PORT_PACK(3, 0x17, RZG2L_MULTIPLEXED_PIN_FUNCS), + RZG2L_GPIO_PORT_PACK(3, 0x18, RZG2L_MULTIPLEXED_PIN_FUNCS), + RZG2L_GPIO_PORT_PACK(2, 0x19, RZG2L_MULTIPLEXED_PIN_FUNCS), + RZG2L_GPIO_PORT_PACK(2, 0x1a, RZG2L_MULTIPLEXED_PIN_FUNCS), + RZG2L_GPIO_PORT_PACK(2, 0x1b, RZG2L_MULTIPLEXED_PIN_FUNCS), + RZG2L_GPIO_PORT_PACK(2, 0x1c, RZG2L_MULTIPLEXED_PIN_FUNCS), + RZG2L_GPIO_PORT_PACK(3, 0x1d, RZG2L_MULTIPLEXED_PIN_FUNCS), + RZG2L_GPIO_PORT_PACK(2, 0x1e, RZG2L_MULTIPLEXED_PIN_FUNCS), + RZG2L_GPIO_PORT_PACK(2, 0x1f, RZG2L_MULTIPLEXED_PIN_FUNCS), + RZG2L_GPIO_PORT_PACK(2, 0x20, RZG2L_MULTIPLEXED_PIN_FUNCS), + RZG2L_GPIO_PORT_PACK(3, 0x22, RZG2L_MULTIPLEXED_PIN_FUNCS), + RZG2L_GPIO_PORT_PACK(2, 0x22, RZG2L_MULTIPLEXED_PIN_FUNCS), + RZG2L_GPIO_PORT_PACK(2, 0x23, RZG2L_MULTIPLEXED_PIN_FUNCS), + RZG2L_GPIO_PORT_PACK(3, 0x24, RZG2L_MULTIPLEXED_ETH_PIN_FUNCS(PIN_CFG_IO_VOLTAGE_ETH0)), + RZG2L_GPIO_PORT_PACK(2, 0x25, RZG2L_MULTIPLEXED_ETH_PIN_FUNCS(PIN_CFG_IO_VOLTAGE_ETH0)), + RZG2L_GPIO_PORT_PACK(2, 0x26, RZG2L_MULTIPLEXED_ETH_PIN_FUNCS(PIN_CFG_IO_VOLTAGE_ETH0)), + RZG2L_GPIO_PORT_PACK(2, 0x27, RZG2L_MULTIPLEXED_ETH_PIN_FUNCS(PIN_CFG_IO_VOLTAGE_ETH0)), + RZG2L_GPIO_PORT_PACK(2, 0x28, RZG2L_MULTIPLEXED_ETH_PIN_FUNCS(PIN_CFG_IO_VOLTAGE_ETH0)), + RZG2L_GPIO_PORT_PACK(2, 0x29, RZG2L_MULTIPLEXED_ETH_PIN_FUNCS(PIN_CFG_IO_VOLTAGE_ETH0)), + RZG2L_GPIO_PORT_PACK(2, 0x2a, RZG2L_MULTIPLEXED_ETH_PIN_FUNCS(PIN_CFG_IO_VOLTAGE_ETH0)), + RZG2L_GPIO_PORT_PACK(2, 0x2b, RZG2L_MULTIPLEXED_ETH_PIN_FUNCS(PIN_CFG_IO_VOLTAGE_ETH0)), + RZG2L_GPIO_PORT_PACK(2, 0x2c, RZG2L_MULTIPLEXED_ETH_PIN_FUNCS(PIN_CFG_IO_VOLTAGE_ETH0)), + RZG2L_GPIO_PORT_PACK(2, 0x2d, RZG2L_MULTIPLEXED_ETH_PIN_FUNCS(PIN_CFG_IO_VOLTAGE_ETH1)), + RZG2L_GPIO_PORT_PACK(2, 0x2e, RZG2L_MULTIPLEXED_ETH_PIN_FUNCS(PIN_CFG_IO_VOLTAGE_ETH1)), + RZG2L_GPIO_PORT_PACK(2, 0x2f, RZG2L_MULTIPLEXED_ETH_PIN_FUNCS(PIN_CFG_IO_VOLTAGE_ETH1)), + RZG2L_GPIO_PORT_PACK(2, 0x30, RZG2L_MULTIPLEXED_ETH_PIN_FUNCS(PIN_CFG_IO_VOLTAGE_ETH1)), + RZG2L_GPIO_PORT_PACK(2, 0x31, RZG2L_MULTIPLEXED_ETH_PIN_FUNCS(PIN_CFG_IO_VOLTAGE_ETH1)), + RZG2L_GPIO_PORT_PACK(2, 0x32, RZG2L_MULTIPLEXED_ETH_PIN_FUNCS(PIN_CFG_IO_VOLTAGE_ETH1)), + RZG2L_GPIO_PORT_PACK(2, 0x33, RZG2L_MULTIPLEXED_ETH_PIN_FUNCS(PIN_CFG_IO_VOLTAGE_ETH1)), + RZG2L_GPIO_PORT_PACK(2, 0x34, RZG2L_MULTIPLEXED_ETH_PIN_FUNCS(PIN_CFG_IO_VOLTAGE_ETH1)), + RZG2L_GPIO_PORT_PACK(3, 0x35, RZG2L_MULTIPLEXED_ETH_PIN_FUNCS(PIN_CFG_IO_VOLTAGE_ETH1)), + RZG2L_GPIO_PORT_PACK(2, 0x36, RZG2L_MULTIPLEXED_PIN_FUNCS), + RZG2L_GPIO_PORT_PACK(3, 0x37, RZG2L_MULTIPLEXED_PIN_FUNCS), + RZG2L_GPIO_PORT_PACK(3, 0x38, RZG2L_MULTIPLEXED_PIN_FUNCS), + RZG2L_GPIO_PORT_PACK(2, 0x39, RZG2L_MULTIPLEXED_PIN_FUNCS), + RZG2L_GPIO_PORT_PACK(5, 0x3a, RZG2L_MULTIPLEXED_PIN_FUNCS), + RZG2L_GPIO_PORT_PACK(4, 0x3b, RZG2L_MULTIPLEXED_PIN_FUNCS), + RZG2L_GPIO_PORT_PACK(4, 0x3c, RZG2L_MULTIPLEXED_PIN_FUNCS), + RZG2L_GPIO_PORT_PACK(4, 0x3d, RZG2L_MULTIPLEXED_PIN_FUNCS), + RZG2L_GPIO_PORT_PACK(4, 0x3e, RZG2L_MULTIPLEXED_PIN_FUNCS), + RZG2L_GPIO_PORT_PACK(4, 0x3f, RZG2L_MULTIPLEXED_PIN_FUNCS), + RZG2L_GPIO_PORT_PACK(5, 0x40, RZG2L_MULTIPLEXED_PIN_FUNCS), +}; + +static struct rzg2l_dedicated_configs rzg2l_dedicated_pins[] = { + { "NMI", RZG2L_DEDICIATED_PIN_PACK(0x1, 0, (PIN_CFG_FILONOFF | + PIN_CFG_FILNUM | + PIN_CFG_FILCLKSEL)) }, + { "TMS/SWDIO", RZG2L_DEDICIATED_PIN_PACK(0x2, 0, (PIN_CFG_SLEW_RATE | + PIN_CFG_DRIVE_STRENGTH | + PIN_CFG_INPUT_ENABLE))}, + { "TDO", RZG2L_DEDICIATED_PIN_PACK(0x3, 0, (PIN_CFG_DRIVE_STRENGTH | + PIN_CFG_SLEW_RATE | + PIN_CFG_INPUT_ENABLE))}, + { "AUDIO_CLK1", RZG2L_DEDICIATED_PIN_PACK(0x4, 0, PIN_CFG_INPUT_ENABLE)}, + { "AUDIO_CLK2", RZG2L_DEDICIATED_PIN_PACK(0x4, 1, PIN_CFG_INPUT_ENABLE)}, + { "SD0_CLK", RZG2L_DEDICIATED_PIN_PACK(0x6, 0, (PIN_CFG_DRIVE_STRENGTH | + PIN_CFG_SLEW_RATE | + PIN_CFG_IO_VOLTAGE_SD0))}, + { "SD0_CMD", RZG2L_DEDICIATED_PIN_PACK(0x6, 1, (PIN_CFG_DRIVE_STRENGTH | + PIN_CFG_SLEW_RATE | + PIN_CFG_INPUT_ENABLE | + PIN_CFG_IO_VOLTAGE_SD0))}, + { "SD0_RST", RZG2L_DEDICIATED_PIN_PACK(0x6, 2, (PIN_CFG_DRIVE_STRENGTH | + PIN_CFG_SLEW_RATE | + PIN_CFG_IO_VOLTAGE_SD0))}, + { "SD0_DATA0", RZG2L_DEDICIATED_PIN_PACK(0x7, 0, (PIN_CFG_DRIVE_STRENGTH | + PIN_CFG_SLEW_RATE | + PIN_CFG_INPUT_ENABLE | + PIN_CFG_IO_VOLTAGE_SD0))}, + { "SD0_DATA1", RZG2L_DEDICIATED_PIN_PACK(0x7, 1, (PIN_CFG_DRIVE_STRENGTH | + PIN_CFG_SLEW_RATE | + PIN_CFG_INPUT_ENABLE | + PIN_CFG_IO_VOLTAGE_SD0))}, + { "SD0_DATA2", RZG2L_DEDICIATED_PIN_PACK(0x7, 2, (PIN_CFG_DRIVE_STRENGTH | + PIN_CFG_SLEW_RATE | + PIN_CFG_INPUT_ENABLE | + PIN_CFG_IO_VOLTAGE_SD0))}, + { "SD0_DATA3", RZG2L_DEDICIATED_PIN_PACK(0x7, 3, (PIN_CFG_DRIVE_STRENGTH | + PIN_CFG_SLEW_RATE | + PIN_CFG_INPUT_ENABLE | + PIN_CFG_IO_VOLTAGE_SD0))}, + { "SD0_DATA4", RZG2L_DEDICIATED_PIN_PACK(0x7, 4, (PIN_CFG_DRIVE_STRENGTH | + PIN_CFG_SLEW_RATE | + PIN_CFG_INPUT_ENABLE | + PIN_CFG_IO_VOLTAGE_SD0))}, + { "SD0_DATA5", RZG2L_DEDICIATED_PIN_PACK(0x7, 5, (PIN_CFG_DRIVE_STRENGTH | + PIN_CFG_SLEW_RATE | + PIN_CFG_INPUT_ENABLE | + PIN_CFG_IO_VOLTAGE_SD0))}, + { "SD0_DATA6", RZG2L_DEDICIATED_PIN_PACK(0x7, 6, (PIN_CFG_DRIVE_STRENGTH | + PIN_CFG_SLEW_RATE | + PIN_CFG_INPUT_ENABLE | + PIN_CFG_IO_VOLTAGE_SD0))}, + { "SD0_DATA7", RZG2L_DEDICIATED_PIN_PACK(0x7, 7, (PIN_CFG_DRIVE_STRENGTH | + PIN_CFG_SLEW_RATE | + PIN_CFG_INPUT_ENABLE | + PIN_CFG_IO_VOLTAGE_SD0))}, + { "SD1_CLK", RZG2L_DEDICIATED_PIN_PACK(0x8, 0, (PIN_CFG_DRIVE_STRENGTH | + PIN_CFG_SLEW_RATE | + PIN_CFG_IO_VOLTAGE_SD1))}, + { "SD1_CMD", RZG2L_DEDICIATED_PIN_PACK(0x8, 1, (PIN_CFG_DRIVE_STRENGTH | + PIN_CFG_SLEW_RATE | + PIN_CFG_INPUT_ENABLE | + PIN_CFG_IO_VOLTAGE_SD1))}, + { "SD1_DATA0", RZG2L_DEDICIATED_PIN_PACK(0x9, 0, (PIN_CFG_DRIVE_STRENGTH | + PIN_CFG_SLEW_RATE | + PIN_CFG_INPUT_ENABLE | + PIN_CFG_IO_VOLTAGE_SD1))}, + { "SD1_DATA1", RZG2L_DEDICIATED_PIN_PACK(0x9, 1, (PIN_CFG_DRIVE_STRENGTH | + PIN_CFG_SLEW_RATE | + PIN_CFG_INPUT_ENABLE | + PIN_CFG_IO_VOLTAGE_SD1))}, + { "SD1_DATA2", RZG2L_DEDICIATED_PIN_PACK(0x9, 2, (PIN_CFG_DRIVE_STRENGTH | + PIN_CFG_SLEW_RATE | + PIN_CFG_INPUT_ENABLE | + PIN_CFG_IO_VOLTAGE_SD1))}, + { "SD1_DATA3", RZG2L_DEDICIATED_PIN_PACK(0x9, 3, (PIN_CFG_DRIVE_STRENGTH | + PIN_CFG_SLEW_RATE | + PIN_CFG_INPUT_ENABLE | + PIN_CFG_IO_VOLTAGE_SD1))}, + { "QSPI0_SPCLK", RZG2L_DEDICIATED_PIN_PACK(0xa, 0, (PIN_CFG_DRIVE_STRENGTH | + PIN_CFG_SLEW_RATE | + PIN_CFG_IO_VOLTAGE_QSPI))}, + { "QSPI0_IO0", RZG2L_DEDICIATED_PIN_PACK(0xa, 1, (PIN_CFG_DRIVE_STRENGTH | + PIN_CFG_SLEW_RATE | + PIN_CFG_IO_VOLTAGE_QSPI))}, + { "QSPI0_IO1", RZG2L_DEDICIATED_PIN_PACK(0xa, 2, (PIN_CFG_DRIVE_STRENGTH | + PIN_CFG_SLEW_RATE | + PIN_CFG_IO_VOLTAGE_QSPI))}, + { "QSPI0_IO2", RZG2L_DEDICIATED_PIN_PACK(0xa, 3, (PIN_CFG_DRIVE_STRENGTH | + PIN_CFG_SLEW_RATE | + PIN_CFG_IO_VOLTAGE_QSPI))}, + { "QSPI0_IO3", RZG2L_DEDICIATED_PIN_PACK(0xa, 4, (PIN_CFG_DRIVE_STRENGTH | + PIN_CFG_SLEW_RATE | + PIN_CFG_IO_VOLTAGE_QSPI))}, + { "QSPI0_SSL", RZG2L_DEDICIATED_PIN_PACK(0xa, 5, (PIN_CFG_DRIVE_STRENGTH | + PIN_CFG_SLEW_RATE | + PIN_CFG_IO_VOLTAGE_QSPI))}, + { "QSPI1_SPCLK", RZG2L_DEDICIATED_PIN_PACK(0xb, 0, (PIN_CFG_DRIVE_STRENGTH | + PIN_CFG_SLEW_RATE | + PIN_CFG_IO_VOLTAGE_QSPI))}, + { "QSPI1_IO0", RZG2L_DEDICIATED_PIN_PACK(0xb, 1, (PIN_CFG_DRIVE_STRENGTH | + PIN_CFG_SLEW_RATE | + PIN_CFG_IO_VOLTAGE_QSPI))}, + { "QSPI1_1", RZG2L_DEDICIATED_PIN_PACK(0xb, 2, (PIN_CFG_DRIVE_STRENGTH | + PIN_CFG_SLEW_RATE | + PIN_CFG_IO_VOLTAGE_QSPI))}, + { "QSPI1_IO2", RZG2L_DEDICIATED_PIN_PACK(0xb, 3, (PIN_CFG_DRIVE_STRENGTH | + PIN_CFG_SLEW_RATE | + PIN_CFG_IO_VOLTAGE_QSPI))}, + { "QSPI1_IO3", RZG2L_DEDICIATED_PIN_PACK(0xb, 4, (PIN_CFG_DRIVE_STRENGTH | + PIN_CFG_SLEW_RATE | + PIN_CFG_IO_VOLTAGE_QSPI))}, + { "QSPI1_SSL", RZG2L_DEDICIATED_PIN_PACK(0xb, 5, (PIN_CFG_DRIVE_STRENGTH | + PIN_CFG_SLEW_RATE | + PIN_CFG_IO_VOLTAGE_QSPI))}, + { "QSPI_RESET", RZG2L_DEDICIATED_PIN_PACK(0xc, 0, (PIN_CFG_DRIVE_STRENGTH | + PIN_CFG_SLEW_RATE | + PIN_CFG_IO_VOLTAGE_QSPI))}, + { "QSPI_WP", RZG2L_DEDICIATED_PIN_PACK(0xc, 1, (PIN_CFG_DRIVE_STRENGTH | + PIN_CFG_SLEW_RATE | + PIN_CFG_IO_VOLTAGE_QSPI))}, + { "QSPI_INT", RZG2L_DEDICIATED_PIN_PACK(0xc, 2, (PIN_CFG_DRIVE_STRENGTH | + PIN_CFG_SLEW_RATE | + PIN_CFG_IO_VOLTAGE_QSPI))}, + { "WDTOVF_PERROUT", RZG2L_DEDICIATED_PIN_PACK(0xd, 0, (PIN_CFG_DRIVE_STRENGTH | + PIN_CFG_SLEW_RATE))}, + { "RIIC0_SDA", RZG2L_DEDICIATED_PIN_PACK(0xe, 0, PIN_CFG_INPUT_ENABLE)}, + { "RIIC0_SCL", RZG2L_DEDICIATED_PIN_PACK(0xe, 1, PIN_CFG_INPUT_ENABLE)}, + { "RIIC1_SDA", RZG2L_DEDICIATED_PIN_PACK(0xe, 2, PIN_CFG_INPUT_ENABLE)}, + { "RIIC1_SCL", RZG2L_DEDICIATED_PIN_PACK(0xe, 3, PIN_CFG_INPUT_ENABLE)}, +}; + +static int rzg2l_gpio_register(struct rzg2l_pinctrl *pctrl) +{ + struct device_node *np = pctrl->dev->of_node; + struct gpio_chip *chip = &pctrl->gpio_chip; + const char *name = dev_name(pctrl->dev); + struct of_phandle_args of_args; + int ret; + + ret = of_parse_phandle_with_fixed_args(np, "gpio-ranges", 3, 0, &of_args); + if (ret) { + dev_err(pctrl->dev, "Unable to parse gpio-ranges\n"); + return ret; + } + + if (of_args.args[0] != 0 || of_args.args[1] != 0 || + of_args.args[2] != ARRAY_SIZE(rzg2l_gpio_names)) { + dev_err(pctrl->dev, "gpio-ranges does not match selected SOC\n"); + return -EINVAL; + } + + chip->names = rzg2l_gpio_names; + chip->request = rzg2l_gpio_request; + chip->free = rzg2l_gpio_free; + chip->get_direction = rzg2l_gpio_get_direction; + chip->direction_input = rzg2l_gpio_direction_input; + chip->direction_output = rzg2l_gpio_direction_output; + chip->get = rzg2l_gpio_get; + chip->set = rzg2l_gpio_set; + chip->label = name; + chip->parent = pctrl->dev; + chip->owner = THIS_MODULE; + chip->base = -1; + chip->ngpio = of_args.args[2]; + + pctrl->gpio_range.id = 0; + pctrl->gpio_range.pin_base = 0; + pctrl->gpio_range.base = 0; + pctrl->gpio_range.npins = chip->ngpio; + pctrl->gpio_range.name = chip->label; + pctrl->gpio_range.gc = chip; + ret = devm_gpiochip_add_data(pctrl->dev, chip, pctrl); + if (ret) { + dev_err(pctrl->dev, "failed to add GPIO controller\n"); + return ret; + } + + dev_dbg(pctrl->dev, "Registered gpio controller\n"); + + return 0; +} + +static int rzg2l_pinctrl_register(struct rzg2l_pinctrl *pctrl) +{ + struct pinctrl_pin_desc *pins; + unsigned int *pin_data; + unsigned int i, j; + int ret; + + pctrl->desc.name = DRV_NAME; + pctrl->desc.npins = pctrl->data->n_port_pins + pctrl->data->n_dedicated_pins; + pctrl->desc.pctlops = &rzg2l_pinctrl_pctlops; + pctrl->desc.pmxops = &rzg2l_pinctrl_pmxops; + pctrl->desc.confops = &rzg2l_pinctrl_confops; + pctrl->desc.owner = THIS_MODULE; + + pins = devm_kcalloc(pctrl->dev, pctrl->desc.npins, sizeof(*pins), GFP_KERNEL); + if (!pins) + return -ENOMEM; + + pin_data = devm_kcalloc(pctrl->dev, pctrl->desc.npins, + sizeof(unsigned int), GFP_KERNEL); + if (!pin_data) + return -ENOMEM; + + pctrl->pins = pins; + pctrl->desc.pins = pins; + + for (i = 0, j = 0; i < pctrl->data->n_port_pins; i++) { + pins[i].number = i; + pins[i].name = pctrl->data->port_pins[i]; + if (i && !(i % RZG2L_PINS_PER_PORT)) + j++; + pin_data[i] = pctrl->data->port_pin_configs[j]; + pins[i].drv_data = &pin_data[i]; + } + + for (i = 0; i < pctrl->data->n_dedicated_pins; i++) { + unsigned int index = pctrl->data->n_port_pins + i; + + pins[index].number = index; + pins[index].name = pctrl->data->dedicated_pins[i].name; + pin_data[index] = pctrl->data->dedicated_pins[i].config; + pins[index].drv_data = &pin_data[index]; + } + + ret = devm_pinctrl_register_and_init(pctrl->dev, &pctrl->desc, pctrl, + &pctrl->pctl); + if (ret) { + dev_err(pctrl->dev, "pinctrl registration failed\n"); + return ret; + } + + ret = pinctrl_enable(pctrl->pctl); + if (ret) { + dev_err(pctrl->dev, "pinctrl enable failed\n"); + return ret; + } + + ret = rzg2l_gpio_register(pctrl); + if (ret) { + dev_err(pctrl->dev, "failed to add GPIO chip: %i\n", ret); + return ret; + }; + + return 0; +} + +static int rzg2l_pinctrl_probe(struct platform_device *pdev) +{ + struct rzg2l_pinctrl *pctrl; + int ret; + + pctrl = devm_kzalloc(&pdev->dev, sizeof(*pctrl), GFP_KERNEL); + if (!pctrl) + return -ENOMEM; + + pctrl->dev = &pdev->dev; + + pctrl->data = of_device_get_match_data(&pdev->dev); + if (!pctrl->data) + return -EINVAL; + + pctrl->base = devm_platform_ioremap_resource(pdev, 0); + if (IS_ERR(pctrl->base)) + return PTR_ERR(pctrl->base); + + pctrl->clk = devm_clk_get(pctrl->dev, NULL); + if (IS_ERR(pctrl->clk)) { + ret = PTR_ERR(pctrl->clk); + dev_err(pctrl->dev, "failed to get GPIO clk : %i\n", ret); + return ret; + }; + + spin_lock_init(&pctrl->lock); + + ret = rzg2l_pinctrl_register(pctrl); + if (ret) + return ret; + + ret = clk_prepare_enable(pctrl->clk); + if (ret) { + dev_err(pctrl->dev, "failed to enable GPIO clk: %i\n", ret); + return ret; + }; + + platform_set_drvdata(pdev, pctrl); + + dev_info(pctrl->dev, "%s support registered\n", DRV_NAME); + return 0; +} + +static struct rzg2l_pinctrl_data r9a07g044_data = { + .port_pins = rzg2l_gpio_names, + .port_pin_configs = rzg2l_gpio_configs, + .dedicated_pins = rzg2l_dedicated_pins, + .n_port_pins = ARRAY_SIZE(rzg2l_gpio_names), + .n_dedicated_pins = ARRAY_SIZE(rzg2l_dedicated_pins), +}; + +static const struct of_device_id rzg2l_pinctrl_of_table[] = { + { + .compatible = "renesas,r9a07g044-pinctrl", + .data = &r9a07g044_data, + }, + { /* sentinel */ } +}; + +static struct platform_driver rzg2l_pinctrl_driver = { + .driver = { + .name = DRV_NAME, + .of_match_table = of_match_ptr(rzg2l_pinctrl_of_table), + }, + .probe = rzg2l_pinctrl_probe, +}; + +static int __init rzg2l_pinctrl_init(void) +{ + return platform_driver_register(&rzg2l_pinctrl_driver); +} +core_initcall(rzg2l_pinctrl_init); + +MODULE_AUTHOR("Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>"); +MODULE_DESCRIPTION("Pin and gpio controller driver for RZ/G2L family"); +MODULE_LICENSE("GPL v2");