From patchwork Fri Jan 3 22:26:50 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Simon Glass X-Patchwork-Id: 239091 List-Id: U-Boot discussion From: sjg at chromium.org (Simon Glass) Date: Fri, 3 Jan 2020 15:26:50 -0700 Subject: [PATCH v2 19/19] i2c: Update drivers to use enum for speed In-Reply-To: <20200103222650.32592-1-sjg@chromium.org> References: <20200103222650.32592-1-sjg@chromium.org> Message-ID: <20200103152643.v2.19.I85a8952ec81d01e4f5ee433c9c62c814b2c87c34@changeid> Convert the obvious uses of i2c bus speeds to use the enum. Use livetree access for code changes. Signed-off-by: Simon Glass Reviewed-by: Heiko Schocher --- Changes in v2: None drivers/i2c/exynos_hs_i2c.c | 4 ++-- drivers/i2c/fsl_i2c.c | 3 ++- drivers/i2c/i2c-cdns.c | 2 +- drivers/i2c/i2c-uclass.c | 12 ++++++------ drivers/i2c/i2c-uniphier-f.c | 2 +- drivers/i2c/i2c-uniphier.c | 2 +- drivers/i2c/imx_lpi2c.c | 8 ++++---- drivers/i2c/mv_i2c.c | 4 ++-- drivers/i2c/mvtwsi.c | 5 +++-- drivers/i2c/omap24xx_i2c.c | 3 ++- drivers/i2c/rcar_i2c.c | 2 +- drivers/i2c/rcar_iic.c | 2 +- drivers/i2c/s3c24x0_i2c.c | 4 ++-- drivers/i2c/sandbox_i2c.c | 3 ++- 14 files changed, 30 insertions(+), 26 deletions(-) diff --git a/drivers/i2c/exynos_hs_i2c.c b/drivers/i2c/exynos_hs_i2c.c index a0821c9257..048272c6b5 100644 --- a/drivers/i2c/exynos_hs_i2c.c +++ b/drivers/i2c/exynos_hs_i2c.c @@ -527,8 +527,8 @@ static int s3c_i2c_ofdata_to_platdata(struct udevice *dev) i2c_bus->id = pinmux_decode_periph_id(blob, node); - i2c_bus->clock_frequency = fdtdec_get_int(blob, node, - "clock-frequency", 100000); + i2c_bus->clock_frequency = dev_read_u32_default(dev, "clock-frequency", + I2C_SPEED_STANDARD_RATE); i2c_bus->node = node; i2c_bus->bus_num = dev->seq; diff --git a/drivers/i2c/fsl_i2c.c b/drivers/i2c/fsl_i2c.c index bbbd6ef5bf..097c54388f 100644 --- a/drivers/i2c/fsl_i2c.c +++ b/drivers/i2c/fsl_i2c.c @@ -584,7 +584,8 @@ static int fsl_i2c_ofdata_to_platdata(struct udevice *bus) dev->index = dev_read_u32_default(bus, "cell-index", -1); dev->slaveadd = dev_read_u32_default(bus, "u-boot,i2c-slave-addr", 0x7f); - dev->speed = dev_read_u32_default(bus, "clock-frequency", 400000); + dev->speed = dev_read_u32_default(bus, "clock-frequency", + I2C_SPEED_FAST_RATE); if (!clk_get_by_index(bus, 0, &clock)) dev->i2c_clk = clk_get_rate(&clock); diff --git a/drivers/i2c/i2c-cdns.c b/drivers/i2c/i2c-cdns.c index ff3956d8c2..ac15da2c67 100644 --- a/drivers/i2c/i2c-cdns.c +++ b/drivers/i2c/i2c-cdns.c @@ -213,7 +213,7 @@ static int cdns_i2c_set_bus_speed(struct udevice *dev, unsigned int speed) unsigned long speed_p = speed; int ret = 0; - if (speed > 400000) { + if (speed > I2C_SPEED_FAST_RATE) { debug("%s, failed to set clock speed to %u\n", __func__, speed); return -EINVAL; diff --git a/drivers/i2c/i2c-uclass.c b/drivers/i2c/i2c-uclass.c index fe77e64619..2aa3efe8aa 100644 --- a/drivers/i2c/i2c-uclass.c +++ b/drivers/i2c/i2c-uclass.c @@ -641,7 +641,8 @@ static int i2c_post_probe(struct udevice *dev) #if CONFIG_IS_ENABLED(OF_CONTROL) && !CONFIG_IS_ENABLED(OF_PLATDATA) struct dm_i2c_bus *i2c = dev_get_uclass_priv(dev); - i2c->speed_hz = dev_read_u32_default(dev, "clock-frequency", 100000); + i2c->speed_hz = dev_read_u32_default(dev, "clock-frequency", + I2C_SPEED_STANDARD_RATE); return dm_i2c_set_bus_speed(dev, i2c->speed_hz); #else @@ -699,11 +700,10 @@ int i2c_uclass_init(struct uclass *class) return -ENOMEM; /* Get the last allocated alias. */ -#if CONFIG_IS_ENABLED(OF_CONTROL) - priv->max_id = dev_read_alias_highest_id("i2c"); -#else - priv->max_id = -1; -#endif + if (CONFIG_IS_ENABLED(OF_CONTROL) && !CONFIG_IS_ENABLED(OF_PLATDATA)) + priv->max_id = dev_read_alias_highest_id("i2c"); + else + priv->max_id = -1; debug("%s: highest alias id is %d\n", __func__, priv->max_id); diff --git a/drivers/i2c/i2c-uniphier-f.c b/drivers/i2c/i2c-uniphier-f.c index ced606bf36..62acd28e1b 100644 --- a/drivers/i2c/i2c-uniphier-f.c +++ b/drivers/i2c/i2c-uniphier-f.c @@ -281,7 +281,7 @@ static int uniphier_fi2c_set_bus_speed(struct udevice *bus, unsigned int speed) struct uniphier_fi2c_regs __iomem *regs = priv->regs; /* max supported frequency is 400 kHz */ - if (speed > 400000) + if (speed > I2C_SPEED_FAST_RATE) return -EINVAL; ret = uniphier_fi2c_check_bus_busy(priv); diff --git a/drivers/i2c/i2c-uniphier.c b/drivers/i2c/i2c-uniphier.c index e427415e7e..07a7e03033 100644 --- a/drivers/i2c/i2c-uniphier.c +++ b/drivers/i2c/i2c-uniphier.c @@ -177,7 +177,7 @@ static int uniphier_i2c_set_bus_speed(struct udevice *bus, unsigned int speed) struct uniphier_i2c_priv *priv = dev_get_priv(bus); /* max supported frequency is 400 kHz */ - if (speed > 400000) + if (speed > I2C_SPEED_FAST_RATE) return -EINVAL; /* bus reset: make sure the bus is idle when change the frequency */ diff --git a/drivers/i2c/imx_lpi2c.c b/drivers/i2c/imx_lpi2c.c index 2de99d019e..c9d3faa911 100644 --- a/drivers/i2c/imx_lpi2c.c +++ b/drivers/i2c/imx_lpi2c.c @@ -169,7 +169,7 @@ static int bus_i2c_start(struct udevice *bus, u8 addr, u8 dir) debug("i2c: start check busy bus: 0x%x\n", result); /* Try to init the lpi2c then check the bus busy again */ - bus_i2c_init(bus, 100000); + bus_i2c_init(bus, I2C_SPEED_STANDARD_RATE); result = imx_lpci2c_check_busy_bus(regs); if (result) { printf("i2c: Error check busy bus: 0x%x\n", result); @@ -388,13 +388,13 @@ static int imx_lpi2c_probe_chip(struct udevice *bus, u32 chip, result = bus_i2c_start(bus, chip, 0); if (result) { bus_i2c_stop(bus); - bus_i2c_init(bus, 100000); + bus_i2c_init(bus, I2C_SPEED_STANDARD_RATE); return result; } result = bus_i2c_stop(bus); if (result) - bus_i2c_init(bus, 100000); + bus_i2c_init(bus, I2C_SPEED_STANDARD_RATE); return result; } @@ -489,7 +489,7 @@ static int imx_lpi2c_probe(struct udevice *bus) return ret; } - ret = bus_i2c_init(bus, 100000); + ret = bus_i2c_init(bus, I2C_SPEED_STANDARD_RATE); if (ret < 0) return ret; diff --git a/drivers/i2c/mv_i2c.c b/drivers/i2c/mv_i2c.c index 8a56ef9a24..63665f0952 100644 --- a/drivers/i2c/mv_i2c.c +++ b/drivers/i2c/mv_i2c.c @@ -434,7 +434,7 @@ void i2c_init(int speed, int slaveaddr) base_glob = (struct mv_i2c *)CONFIG_MV_I2C_REG; #endif - if (speed > 100000) + if (speed > I2C_SPEED_STANDARD_RATE) val = ICR_FM; else val = ICR_SM; @@ -565,7 +565,7 @@ static int mv_i2c_set_bus_speed(struct udevice *bus, unsigned int speed) struct mv_i2c_priv *priv = dev_get_priv(bus); u32 val; - if (speed > 100000) + if (speed > I2C_SPEED_STANDARD_RATE) val = ICR_FM; else val = ICR_SM; diff --git a/drivers/i2c/mvtwsi.c b/drivers/i2c/mvtwsi.c index 0a2dafcec6..382cf4b304 100644 --- a/drivers/i2c/mvtwsi.c +++ b/drivers/i2c/mvtwsi.c @@ -805,8 +805,9 @@ static int mvtwsi_i2c_ofdata_to_platdata(struct udevice *bus) "cell-index", -1); dev->slaveadd = fdtdec_get_int(gd->fdt_blob, dev_of_offset(bus), "u-boot,i2c-slave-addr", 0x0); - dev->speed = fdtdec_get_int(gd->fdt_blob, dev_of_offset(bus), - "clock-frequency", 100000); + dev->speed = dev_read_u32_default(bus, "clock-frequency", + I2C_SPEED_STANDARD_RATE); + return 0; } diff --git a/drivers/i2c/omap24xx_i2c.c b/drivers/i2c/omap24xx_i2c.c index 7e6e3c4f81..6e7d24d727 100644 --- a/drivers/i2c/omap24xx_i2c.c +++ b/drivers/i2c/omap24xx_i2c.c @@ -1066,7 +1066,8 @@ static int omap_i2c_ofdata_to_platdata(struct udevice *bus) struct omap_i2c_platdata *plat = dev_get_platdata(bus); plat->base = devfdt_get_addr(bus); - plat->speed = dev_read_u32_default(bus, "clock-frequency", 100000); + plat->speed = dev_read_u32_default(bus, "clock-frequency", + I2C_SPEED_STANDARD_RATE); plat->ip_rev = dev_get_driver_data(bus); return 0; diff --git a/drivers/i2c/rcar_i2c.c b/drivers/i2c/rcar_i2c.c index 2ebae349ed..05d0dc6012 100644 --- a/drivers/i2c/rcar_i2c.c +++ b/drivers/i2c/rcar_i2c.c @@ -344,7 +344,7 @@ static int rcar_i2c_probe(struct udevice *dev) writel(0, priv->base + RCAR_I2C_ICMSR); writel(0, priv->base + RCAR_I2C_ICMAR); - ret = rcar_i2c_set_speed(dev, 100000); + ret = rcar_i2c_set_speed(dev, I2C_SPEED_STANDARD_RATE); if (ret) clk_disable(&priv->clk); diff --git a/drivers/i2c/rcar_iic.c b/drivers/i2c/rcar_iic.c index 9d45f547d1..2a82eb0b76 100644 --- a/drivers/i2c/rcar_iic.c +++ b/drivers/i2c/rcar_iic.c @@ -248,7 +248,7 @@ static int rcar_iic_probe(struct udevice *dev) rcar_iic_finish(dev); - return rcar_iic_set_speed(dev, 100000); + return rcar_iic_set_speed(dev, I2C_SPEED_STANDARD_RATE); } static const struct dm_i2c_ops rcar_iic_ops = { diff --git a/drivers/i2c/s3c24x0_i2c.c b/drivers/i2c/s3c24x0_i2c.c index ad0bc69fa3..612f5af168 100644 --- a/drivers/i2c/s3c24x0_i2c.c +++ b/drivers/i2c/s3c24x0_i2c.c @@ -313,8 +313,8 @@ static int s3c_i2c_ofdata_to_platdata(struct udevice *dev) i2c_bus->id = pinmux_decode_periph_id(blob, node); - i2c_bus->clock_frequency = fdtdec_get_int(blob, node, - "clock-frequency", 100000); + i2c_bus->clock_frequency = dev_read_u32_default(dev, "clock-frequency", + I2C_SPEED_STANDARD_RATE); i2c_bus->node = node; i2c_bus->bus_num = dev->seq; diff --git a/drivers/i2c/sandbox_i2c.c b/drivers/i2c/sandbox_i2c.c index 0dbbaa0c44..1a4521d5b8 100644 --- a/drivers/i2c/sandbox_i2c.c +++ b/drivers/i2c/sandbox_i2c.c @@ -72,7 +72,8 @@ static int sandbox_i2c_xfer(struct udevice *bus, struct i2c_msg *msg, * 400KHz for reads. */ is_read = nmsgs > 1; - if (i2c->speed_hz > (is_read ? 400000 : 100000)) { + if (i2c->speed_hz > (is_read ? I2C_SPEED_FAST_RATE : + I2C_SPEED_STANDARD_RATE)) { debug("%s: Max speed exceeded\n", __func__); return -EINVAL; }