[16/21] pinctrl: samsung: Add gs101 SoC pinctrl configuration

Message ID	20231005155618.700312-17-peter.griffin@linaro.org
State	New
Headers	show Return-Path: <linux-gpio-owner@vger.kernel.org> From: Peter Griffin <peter.griffin@linaro.org> To: robh+dt@kernel.org, krzysztof.kozlowski+dt@linaro.org, mturquette@baylibre.com, conor+dt@kernel.org, sboyd@kernel.org, tomasz.figa@gmail.com, s.nawrocki@samsung.com, linus.walleij@linaro.org, wim@linux-watchdog.org, linux@roeck-us.net, catalin.marinas@arm.com, will@kernel.org, arnd@arndb.de, olof@lixom.net, cw00.choi@samsung.com Cc: peter.griffin@linaro.org, tudor.ambarus@linaro.org, andre.draszik@linaro.org, semen.protsenko@linaro.org, soc@kernel.org, devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-samsung-soc@vger.kernel.org, linux-clk@vger.kernel.org, linux-gpio@vger.kernel.org, linux-watchdog@vger.kernel.org Subject: [PATCH 16/21] pinctrl: samsung: Add gs101 SoC pinctrl configuration Date: Thu, 5 Oct 2023 16:56:13 +0100 Message-ID: <20231005155618.700312-17-peter.griffin@linaro.org> In-Reply-To: <20231005155618.700312-1-peter.griffin@linaro.org> References: <20231005155618.700312-1-peter.griffin@linaro.org> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Precedence: bulk
Series	Add minimal Tensor/GS101 SoC support and Oriole/Pixel6 board \| expand [00/21] Add minimal Tensor/GS101 SoC support and Oriole/Pixel6 board [01/21] dt-bindings: interrupt-controller: Add gs101 interrupt controller [02/21] dt-bindings: soc: samsung: exynos-pmu: Add gs101 compatible [03/21] dt-bindings: clock: Add Google gs101 clock management unit bindings [04/21] dt-bindings: soc: google: exynos-sysreg: add dedicated SYSREG compatibles to GS101 [05/21] dt-bindings: watchdog: Document Google gs101 & gs201 watchdog bindings [06/21] dt-bindings: arm: google: Add bindings for Google ARM platforms [07/21] dt-bindings: pinctrl: samsung: add google,gs101-pinctrl compatible [08/21] dt-bindings: pinctrl: samsung: add gs101-wakeup-eint compatible [09/21] dt-bindings: clock: gs101: Add cmu_top clock indices [10/21] dt-bindings: clock: gs101: Add cmu_apm clock indices [11/21] dt-bindings: clock: gs101: Add cmu_misc clock indices [12/21] clk: samsung: clk-pll: Add support for pll_{0516,0517,518} [13/21] clk: samsung: clk-gs101: Add cmu_top registers, plls, mux and gates [14/21] clk: samsung: clk-gs101: add CMU_APM support [15/21] clk: google: gs101: Add support for CMU_MISC clock unit [16/21] pinctrl: samsung: Add gs101 SoC pinctrl configuration [17/21] watchdog: s3c2410_wdt: Add support for Google tensor SoCs [18/21] arm64: dts: google: Add initial Google gs101 SoC support [19/21] google/gs101: Add dt overlay for oriole board [20/21] arm64: defconfig: Enable Google Tensor SoC [21/21] MAINTAINERS: add entry for Google Tensor SoC

diff --git a/drivers/pinctrl/samsung/pinctrl-exynos-arm64.c b/drivers/pinctrl/samsung/pinctrl-exynos-arm64.c index cb965cf93705..ae681725db26 100644 --- a/drivers/pinctrl/samsung/pinctrl-exynos-arm64.c +++ b/drivers/pinctrl/samsung/pinctrl-exynos-arm64.c @@ -796,3 +796,166 @@ const struct samsung_pinctrl_of_match_data fsd_of_data __initconst = { .ctrl = fsd_pin_ctrl, .num_ctrl = ARRAY_SIZE(fsd_pin_ctrl), }; + +/* + * bank type for non-alive type + * (CON bit field: 4, DAT bit field: 1, PUD bit field: 4, DRV bit field: 4) + * (CONPDN bit field: 2, PUDPDN bit field: 4) + */ +static struct samsung_pin_bank_type bank_type_6 = { + .fld_width = { 4, 1, 4, 4, 2, 4, }, + .reg_offset = { 0x00, 0x04, 0x08, 0x0c, 0x10, 0x14, }, +}; + +/* + * bank type for alive type + * (CON bit field: 4, DAT bit field: 1, PUD bit field: 4, DRV bit field: 4) + */ +static const struct samsung_pin_bank_type bank_type_7 = { + .fld_width = { 4, 1, 4, 4, }, + .reg_offset = { 0x00, 0x04, 0x08, 0x0c, }, +}; + +/* pin banks of gs101 pin-controller (ALIVE) */ +static const struct samsung_pin_bank_data gs101_pin_alive[] = { + EXYNOS9_PIN_BANK_EINTW(bank_type_7, 8, 0x0, "gpa0", 0x00, 0x00, FLT_SELECTABLE), + EXYNOS9_PIN_BANK_EINTW(bank_type_7, 7, 0x20, "gpa1", 0x04, 0x08, FLT_SELECTABLE), + EXYNOS9_PIN_BANK_EINTW(bank_type_7, 5, 0x40, "gpa2", 0x08, 0x10, FLT_SELECTABLE), + EXYNOS9_PIN_BANK_EINTW(bank_type_7, 4, 0x60, "gpa3", 0x0c, 0x18, FLT_SELECTABLE), + EXYNOS9_PIN_BANK_EINTW(bank_type_7, 4, 0x80, "gpa4", 0x10, 0x1c, FLT_SELECTABLE), + EXYNOS9_PIN_BANK_EINTW(bank_type_7, 7, 0xa0, "gpa5", 0x14, 0x20, FLT_SELECTABLE), + EXYNOS9_PIN_BANK_EINTW(bank_type_7, 8, 0xc0, "gpa9", 0x18, 0x28, FLT_SELECTABLE), + EXYNOS9_PIN_BANK_EINTW(bank_type_7, 2, 0xe0, "gpa10", 0x1c, 0x30, FLT_SELECTABLE), +}; + +/* pin banks of gs101 pin-controller (FAR_ALIVE) */ +static const struct samsung_pin_bank_data gs101_pin_far_alive[] = { + EXYNOS9_PIN_BANK_EINTW(bank_type_7, 8, 0x0, "gpa6", 0x00, 0x00, FLT_SELECTABLE), + EXYNOS9_PIN_BANK_EINTW(bank_type_7, 4, 0x20, "gpa7", 0x04, 0x08, FLT_SELECTABLE), + EXYNOS9_PIN_BANK_EINTW(bank_type_7, 8, 0x40, "gpa8", 0x08, 0x0c, FLT_SELECTABLE), + EXYNOS9_PIN_BANK_EINTW(bank_type_7, 2, 0x60, "gpa11", 0x0c, 0x14, FLT_SELECTABLE), +}; + +/* pin banks of gs101 pin-controller (GSACORE) */ +static const struct samsung_pin_bank_data gs101_pin_gsacore[] = { + EXYNOS9_PIN_BANK_EINTG(bank_type_6, 2, 0x0, "gps0", 0x00, 0x00, FLT_DEFAULT), + EXYNOS9_PIN_BANK_EINTG(bank_type_6, 8, 0x20, "gps1", 0x04, 0x04, FLT_DEFAULT), + EXYNOS9_PIN_BANK_EINTG(bank_type_6, 3, 0x40, "gps2", 0x08, 0x0c, FLT_DEFAULT), +}; + +/* pin banks of gs101 pin-controller (GSACTRL) */ +static const struct samsung_pin_bank_data gs101_pin_gsactrl[] = { + EXYNOS9_PIN_BANK_EINTW(bank_type_7, 6, 0x0, "gps3", 0x00, 0x00, FLT_DEFAULT), +}; + +/* pin banks of gs101 pin-controller (PERIC0) */ +static const struct samsung_pin_bank_data gs101_pin_peric0[] = { + EXYNOS9_PIN_BANK_EINTG(bank_type_6, 5, 0x0, "gpp0", 0x00, 0x00, FLT_DEFAULT), + EXYNOS9_PIN_BANK_EINTG(bank_type_6, 4, 0x20, "gpp1", 0x04, 0x08, FLT_DEFAULT), + EXYNOS9_PIN_BANK_EINTG(bank_type_6, 4, 0x40, "gpp2", 0x08, 0x0c, FLT_DEFAULT), + EXYNOS9_PIN_BANK_EINTG(bank_type_6, 2, 0x60, "gpp3", 0x0c, 0x10, FLT_DEFAULT), + EXYNOS9_PIN_BANK_EINTG(bank_type_6, 4, 0x80, "gpp4", 0x10, 0x14, FLT_DEFAULT), + EXYNOS9_PIN_BANK_EINTG(bank_type_6, 2, 0xa0, "gpp5", 0x14, 0x18, FLT_DEFAULT), + EXYNOS9_PIN_BANK_EINTG(bank_type_6, 4, 0xc0, "gpp6", 0x18, 0x1c, FLT_DEFAULT), + EXYNOS9_PIN_BANK_EINTG(bank_type_6, 2, 0xe0, "gpp7", 0x1c, 0x20, FLT_DEFAULT), + EXYNOS9_PIN_BANK_EINTG(bank_type_6, 4, 0x100, "gpp8", 0x20, 0x24, FLT_DEFAULT), + EXYNOS9_PIN_BANK_EINTG(bank_type_6, 2, 0x120, "gpp9", 0x24, 0x28, FLT_DEFAULT), + EXYNOS9_PIN_BANK_EINTG(bank_type_6, 4, 0x140, "gpp10", 0x28, 0x2c, FLT_DEFAULT), + EXYNOS9_PIN_BANK_EINTG(bank_type_6, 2, 0x160, "gpp11", 0x2c, 0x30, FLT_DEFAULT), + EXYNOS9_PIN_BANK_EINTG(bank_type_6, 4, 0x180, "gpp12", 0x30, 0x34, FLT_DEFAULT), + EXYNOS9_PIN_BANK_EINTG(bank_type_6, 2, 0x1a0, "gpp13", 0x34, 0x38, FLT_DEFAULT), + EXYNOS9_PIN_BANK_EINTG(bank_type_6, 4, 0x1c0, "gpp14", 0x38, 0x3c, FLT_DEFAULT), + EXYNOS9_PIN_BANK_EINTG(bank_type_6, 2, 0x1e0, "gpp15", 0x3c, 0x40, FLT_DEFAULT), + EXYNOS9_PIN_BANK_EINTG(bank_type_6, 4, 0x200, "gpp16", 0x40, 0x44, FLT_DEFAULT), + EXYNOS9_PIN_BANK_EINTG(bank_type_6, 2, 0x220, "gpp17", 0x44, 0x48, FLT_DEFAULT), + EXYNOS9_PIN_BANK_EINTG(bank_type_6, 4, 0x240, "gpp18", 0x48, 0x4c, FLT_DEFAULT), + EXYNOS9_PIN_BANK_EINTG(bank_type_6, 4, 0x260, "gpp19", 0x4c, 0x50, FLT_DEFAULT), +}; + +/* pin banks of gs101 pin-controller (PERIC1) */ +static const struct samsung_pin_bank_data gs101_pin_peric1[] = { + EXYNOS9_PIN_BANK_EINTG(bank_type_6, 8, 0x0, "gpp20", 0x00, 0x00, FLT_DEFAULT), + EXYNOS9_PIN_BANK_EINTG(bank_type_6, 4, 0x20, "gpp21", 0x04, 0x08, FLT_DEFAULT), + EXYNOS9_PIN_BANK_EINTG(bank_type_6, 2, 0x40, "gpp22", 0x08, 0x0c, FLT_DEFAULT), + EXYNOS9_PIN_BANK_EINTG(bank_type_6, 8, 0x60, "gpp23", 0x0c, 0x10, FLT_DEFAULT), + EXYNOS9_PIN_BANK_EINTG(bank_type_6, 4, 0x80, "gpp24", 0x10, 0x18, FLT_DEFAULT), + EXYNOS9_PIN_BANK_EINTG(bank_type_6, 4, 0xa0, "gpp25", 0x14, 0x1c, FLT_DEFAULT), + EXYNOS9_PIN_BANK_EINTG(bank_type_6, 5, 0xc0, "gpp26", 0x18, 0x20, FLT_DEFAULT), + EXYNOS9_PIN_BANK_EINTG(bank_type_6, 4, 0xe0, "gpp27", 0x1c, 0x28, FLT_DEFAULT), +}; + +/* pin banks of gs101 pin-controller (HSI1) */ +static const struct samsung_pin_bank_data gs101_pin_hsi1[] = { + EXYNOS9_PIN_BANK_EINTG(bank_type_6, 6, 0x0, "gph0", 0x00, 0x00, FLT_DEFAULT), + EXYNOS9_PIN_BANK_EINTG(bank_type_6, 7, 0x20, "gph1", 0x04, 0x08, FLT_DEFAULT), +}; + +/* pin banks of gs101 pin-controller (HSI2) */ +static const struct samsung_pin_bank_data gs101_pin_hsi2[] = { + EXYNOS9_PIN_BANK_EINTG(bank_type_6, 6, 0x0, "gph2", 0x00, 0x00, FLT_DEFAULT), + EXYNOS9_PIN_BANK_EINTG(bank_type_6, 2, 0x20, "gph3", 0x04, 0x08, FLT_DEFAULT), + EXYNOS9_PIN_BANK_EINTG(bank_type_6, 6, 0x40, "gph4", 0x08, 0x0c, FLT_DEFAULT), +}; + +static const struct samsung_pin_ctrl gs101_pin_ctrl[] __initconst = { + { + /* pin banks of gs101 pin-controller (ALIVE) */ + .pin_banks = gs101_pin_alive, + .nr_banks = ARRAY_SIZE(gs101_pin_alive), + .eint_gpio_init = exynos_eint_gpio_init, + .eint_wkup_init = exynos_eint_wkup_init, + .suspend = exynos_pinctrl_suspend, + .resume = exynos_pinctrl_resume, + }, { + /* pin banks of gs101 pin-controller (FAR_ALIVE) */ + .pin_banks = gs101_pin_far_alive, + .nr_banks = ARRAY_SIZE(gs101_pin_far_alive), + .eint_gpio_init = exynos_eint_gpio_init, + .eint_wkup_init = exynos_eint_wkup_init, + .suspend = exynos_pinctrl_suspend, + .resume = exynos_pinctrl_resume, + }, { + /* pin banks of gs101 pin-controller (GSACORE) */ + .pin_banks = gs101_pin_gsacore, + .nr_banks = ARRAY_SIZE(gs101_pin_gsacore), + .eint_gpio_init = exynos_eint_gpio_init, + }, { + /* pin banks of gs101 pin-controller (GSACTRL) */ + .pin_banks = gs101_pin_gsactrl, + .nr_banks = ARRAY_SIZE(gs101_pin_gsactrl), + .eint_gpio_init = exynos_eint_gpio_init, + }, { + /* pin banks of gs101 pin-controller (PERIC0) */ + .pin_banks = gs101_pin_peric0, + .nr_banks = ARRAY_SIZE(gs101_pin_peric0), + .eint_gpio_init = exynos_eint_gpio_init, + .suspend = exynos_pinctrl_suspend, + .resume = exynos_pinctrl_resume, + }, { + /* pin banks of gs101 pin-controller (PERIC1) */ + .pin_banks = gs101_pin_peric1, + .nr_banks = ARRAY_SIZE(gs101_pin_peric1), + .eint_gpio_init = exynos_eint_gpio_init, + .suspend = exynos_pinctrl_suspend, + .resume = exynos_pinctrl_resume, + }, { + /* pin banks of gs101 pin-controller (HSI1) */ + .pin_banks = gs101_pin_hsi1, + .nr_banks = ARRAY_SIZE(gs101_pin_hsi1), + .eint_gpio_init = exynos_eint_gpio_init, + .suspend = exynos_pinctrl_suspend, + .resume = exynos_pinctrl_resume, + }, { + /* pin banks of gs101 pin-controller (HSI2) */ + .pin_banks = gs101_pin_hsi2, + .nr_banks = ARRAY_SIZE(gs101_pin_hsi2), + .eint_gpio_init = exynos_eint_gpio_init, + .suspend = exynos_pinctrl_suspend, + .resume = exynos_pinctrl_resume, + }, +}; + +const struct samsung_pinctrl_of_match_data gs101_of_data __initconst = { + .ctrl = gs101_pin_ctrl, + .num_ctrl = ARRAY_SIZE(gs101_pin_ctrl), +}; diff --git a/drivers/pinctrl/samsung/pinctrl-exynos.c b/drivers/pinctrl/samsung/pinctrl-exynos.c index a8212fc126bf..0c6c3312abb7 100644 --- a/drivers/pinctrl/samsung/pinctrl-exynos.c +++ b/drivers/pinctrl/samsung/pinctrl-exynos.c @@ -269,6 +269,50 @@ struct exynos_eint_gpio_save { u32 eint_mask; }; +static void exynos_eint_flt_config(int sel, int width, + struct samsung_pinctrl_drv_data *d, + struct samsung_pin_bank *bank) +{ + unsigned int flt_reg, flt_con = 0; + unsigned int val, shift; + int i; + int loop_cnt; + + flt_con |= EXYNOS_FLTCON_EN; + + if (sel) + flt_con |= EXYNOS_FLTCON_SEL_DIGITAL; + + flt_con |= EXYNOS_FLTCON_WIDTH(width); + + flt_reg = EXYNOS_GPIO_EFLTCON_OFFSET + bank->fltcon_offset; + + if (bank->nr_pins > EXYNOS_FLTCON_NR_PIN) + /* + * if nr_pins > 4, we should set FLTCON0 register fully. + * (pin0 ~ 3). So loop 4 times in case of FLTCON0. + */ + loop_cnt = 4; + else + loop_cnt = bank->nr_pins; + + val = readl(d->virt_base + flt_reg); + + for (i = 0; i < loop_cnt; i++) { + shift = i * EXYNOS_FLTCON_LEN; + val &= ~(EXYNOS_FLTCON_MASK << shift); + val |= (flt_con << shift); + } + + writel(val, d->virt_base + flt_reg); + + /* if nr_pins > 4, we should also set FLTCON1 register like FLTCON0. + * (pin4 ~ ) + */ + if (bank->nr_pins > EXYNOS_FLTCON_NR_PIN) + writel(val, d->virt_base + flt_reg + 0x4); +} + /* * exynos_eint_gpio_init() - setup handling of external gpio interrupts. * @d: driver data of samsung pinctrl driver. @@ -321,6 +365,10 @@ __init int exynos_eint_gpio_init(struct samsung_pinctrl_drv_data *d) goto err_domains; } + /* Set Delay Analog Filter */ + if (bank->fltcon_type != FLT_DEFAULT) + exynos_eint_flt_config(EXYNOS_FLTCON_SEL_DELAY, + 0, d, bank); } return 0; @@ -555,6 +603,11 @@ __init int exynos_eint_wkup_init(struct samsung_pinctrl_drv_data *d) if (bank->eint_type != EINT_TYPE_WKUP) continue; + /* Set Digital Filter */ + if (bank->fltcon_type != FLT_DEFAULT) + exynos_eint_flt_config(EXYNOS_FLTCON_SEL_DIGITAL, + 0, d, bank); + bank->irq_chip = devm_kmemdup(dev, irq_chip, sizeof(*irq_chip), GFP_KERNEL); if (!bank->irq_chip) { @@ -658,6 +711,7 @@ static void exynos_pinctrl_suspend_bank( void exynos_pinctrl_suspend(struct samsung_pinctrl_drv_data *drvdata) { struct samsung_pin_bank *bank = drvdata->pin_banks; + struct samsung_pinctrl_drv_data *d = bank->drvdata; struct exynos_irq_chip *irq_chip = NULL; int i; @@ -665,6 +719,10 @@ void exynos_pinctrl_suspend(struct samsung_pinctrl_drv_data *drvdata) if (bank->eint_type == EINT_TYPE_GPIO) exynos_pinctrl_suspend_bank(drvdata, bank); else if (bank->eint_type == EINT_TYPE_WKUP) { + /* Setting Delay (Analog) Filter */ + if (bank->fltcon_type != FLT_DEFAULT) + exynos_eint_flt_config(EXYNOS_FLTCON_SEL_DELAY, + 0, d, bank); if (!irq_chip) { irq_chip = bank->irq_chip; irq_chip->set_eint_wakeup_mask(drvdata, @@ -707,11 +765,19 @@ static void exynos_pinctrl_resume_bank( void exynos_pinctrl_resume(struct samsung_pinctrl_drv_data *drvdata) { struct samsung_pin_bank *bank = drvdata->pin_banks; + struct samsung_pinctrl_drv_data *d = bank->drvdata; int i; for (i = 0; i < drvdata->nr_banks; ++i, ++bank) - if (bank->eint_type == EINT_TYPE_GPIO) + if (bank->eint_type == EINT_TYPE_GPIO) { exynos_pinctrl_resume_bank(drvdata, bank); + } else if (bank->eint_type == EINT_TYPE_WKUP || + bank->eint_type == EINT_TYPE_WKUP_MUX) { + /* Set Digital Filter */ + if (bank->fltcon_type != FLT_DEFAULT) + exynos_eint_flt_config(EXYNOS_FLTCON_SEL_DIGITAL, + 0, d, bank); + } } static void exynos_retention_enable(struct samsung_pinctrl_drv_data *drvdata) diff --git a/drivers/pinctrl/samsung/pinctrl-exynos.h b/drivers/pinctrl/samsung/pinctrl-exynos.h index 7bd6d82c9f36..aafd8f9f52f8 100644 --- a/drivers/pinctrl/samsung/pinctrl-exynos.h +++ b/drivers/pinctrl/samsung/pinctrl-exynos.h @@ -16,6 +16,8 @@ #ifndef __PINCTRL_SAMSUNG_EXYNOS_H #define __PINCTRL_SAMSUNG_EXYNOS_H +#include <linux/bitfield.h> + /* Values for the pin CON register */ #define EXYNOS_PIN_CON_FUNC_EINT 0xf @@ -50,6 +52,14 @@ #define EXYNOS_EINT_MAX_PER_BANK 8 #define EXYNOS_EINT_NR_WKUP_EINT +/* EINT filter configuration */ +#define EXYNOS_FLTCON_EN BIT(7) +#define EXYNOS_FLTCON_SEL_DIGITAL BIT(6) +#define EXYNOS_FLTCON_SEL_DELAY 0 +#define EXYNOS_FLTCON_WIDTH(x) ((x) & 0x3f) +#define EXYNOS_FLTCON_MASK 0xFF +#define EXYNOS_FLTCON_LEN 8 +#define EXYNOS_FLTCON_NR_PIN 4 #define EXYNOS_PIN_BANK_EINTN(pins, reg, id) \ { \ @@ -140,6 +150,40 @@ .name = id \ } +#define EXYNOS9_PIN_BANK_EINTN(types, pins, reg, id) \ + { \ + .type = &types, \ + .pctl_offset = reg, \ + .nr_pins = pins, \ + .eint_type = EINT_TYPE_NONE, \ + .fltcon_type = FLT_DEFAULT \ + .name = id \ + } + +#define EXYNOS9_PIN_BANK_EINTG(types, pins, reg, id, offs, fltcon_offs, fltcontype) \ + { \ + .type = &types, \ + .pctl_offset = reg, \ + .nr_pins = pins, \ + .eint_type = EINT_TYPE_GPIO, \ + .eint_offset = offs, \ + .fltcon_type = fltcontype, \ + .fltcon_offset = fltcon_offs, \ + .name = id \ + } + +#define EXYNOS9_PIN_BANK_EINTW(types, pins, reg, id, offs, fltcon_offs, fltcontype) \ + { \ + .type = &types, \ + .pctl_offset = reg, \ + .nr_pins = pins, \ + .eint_type = EINT_TYPE_WKUP, \ + .eint_offset = offs, \ + .fltcon_type = fltcontype, \ + .fltcon_offset = fltcon_offs, \ + .name = id \ + } + /** * struct exynos_weint_data: irq specific data for all the wakeup interrupts * generated by the external wakeup interrupt controller. diff --git a/drivers/pinctrl/samsung/pinctrl-samsung.c b/drivers/pinctrl/samsung/pinctrl-samsung.c index e54847040b4a..12176f98440d 100644 --- a/drivers/pinctrl/samsung/pinctrl-samsung.c +++ b/drivers/pinctrl/samsung/pinctrl-samsung.c @@ -1104,6 +1104,8 @@ samsung_pinctrl_get_soc_data(struct samsung_pinctrl_drv_data *d, bank->eint_func = bdata->eint_func; bank->eint_type = bdata->eint_type; bank->eint_mask = bdata->eint_mask; + bank->fltcon_type = bdata->fltcon_type; + bank->fltcon_offset = bdata->fltcon_offset; bank->eint_offset = bdata->eint_offset; bank->name = bdata->name; @@ -1319,6 +1321,8 @@ static const struct of_device_id samsung_pinctrl_dt_match[] = { .data = &exynosautov9_of_data }, { .compatible = "tesla,fsd-pinctrl", .data = &fsd_of_data }, + { .compatible = "google,gs101-pinctrl", + .data = &gs101_of_data }, #endif #ifdef CONFIG_PINCTRL_S3C64XX { .compatible = "samsung,s3c64xx-pinctrl", diff --git a/drivers/pinctrl/samsung/pinctrl-samsung.h b/drivers/pinctrl/samsung/pinctrl-samsung.h index 9af93e3d8d9f..e62e909fb10d 100644 --- a/drivers/pinctrl/samsung/pinctrl-samsung.h +++ b/drivers/pinctrl/samsung/pinctrl-samsung.h @@ -82,6 +82,21 @@ enum eint_type { EINT_TYPE_WKUP_MUX, }; +/** + * enum fltcon_type - filter selection + * @FLT_DEFAULT: filter not selectable, default digital filter + * @FLT_SELECT: filter selectable (digital or delay) + * + * Some banks on some SoCs (gs101 and possibly others) have a selectable + * filter on alive banks of 'delay/analog' or 'digital'. If the filter + * selection is not available then the default filter is used (digital). + */ + +enum fltcon_type { + FLT_DEFAULT, + FLT_SELECTABLE, +}; + /* maximum length of a pin in pin descriptor (example: "gpa0-0") */ #define PIN_NAME_LENGTH 10 @@ -122,6 +137,8 @@ struct samsung_pin_bank_type { * @eint_type: type of the external interrupt supported by the bank. * @eint_mask: bit mask of pins which support EINT function. * @eint_offset: SoC-specific EINT register or interrupt offset of bank. + * @fltcon_type: whether the filter (delay/digital) is selectable + * @fltcon_offset: SoC-specific EINT filter control register offset of bank. * @name: name to be prefixed for each pin in this pin bank. */ struct samsung_pin_bank_data { @@ -133,6 +150,8 @@ struct samsung_pin_bank_data { enum eint_type eint_type; u32 eint_mask; u32 eint_offset; + enum fltcon_type fltcon_type; + u32 fltcon_offset; const char *name; }; @@ -147,6 +166,8 @@ struct samsung_pin_bank_data { * @eint_type: type of the external interrupt supported by the bank. * @eint_mask: bit mask of pins which support EINT function. * @eint_offset: SoC-specific EINT register or interrupt offset of bank. + * @fltcon_type: whether the filter (delay/digital) is selectable + * @fltcon_offset: SoC-specific EINT filter control register offset of bank. * @name: name to be prefixed for each pin in this pin bank. * @pin_base: starting pin number of the bank. * @soc_priv: per-bank private data for SoC-specific code. @@ -169,6 +190,8 @@ struct samsung_pin_bank { enum eint_type eint_type; u32 eint_mask; u32 eint_offset; + enum fltcon_type fltcon_type; + u32 fltcon_offset; const char *name; u32 pin_base; @@ -351,6 +374,7 @@ extern const struct samsung_pinctrl_of_match_data exynos7885_of_data; extern const struct samsung_pinctrl_of_match_data exynos850_of_data; extern const struct samsung_pinctrl_of_match_data exynosautov9_of_data; extern const struct samsung_pinctrl_of_match_data fsd_of_data; +extern const struct samsung_pinctrl_of_match_data gs101_of_data; extern const struct samsung_pinctrl_of_match_data s3c64xx_of_data; extern const struct samsung_pinctrl_of_match_data s3c2412_of_data; extern const struct samsung_pinctrl_of_match_data s3c2416_of_data;

[16/21] pinctrl: samsung: Add gs101 SoC pinctrl configuration

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