There are many pins in a SoCs, and different pin may belong to different "io_type", For example: some pins of MT7622 belongs to "io_type A", the other belongs to "io_type B", and pinctrl "V0" means handle pinconf via "io_type A" or "io_type B", so SoCs that contain "io_type A" and "io_type B" pins, use "V0" in pinctrl driver.
This patch separates the implementation of register operations (e.g: "bias-pull-up/down", "driving" and "input-enable") into different functions, and lets the original V0/V1 ops to call the new functions.
Signed-off-by: Sam Shih sam.shih@mediatek.com --- drivers/pinctrl/mediatek/pinctrl-mtk-common.c | 126 +++++++++++++----- drivers/pinctrl/mediatek/pinctrl-mtk-common.h | 18 +++ 2 files changed, 114 insertions(+), 30 deletions(-)
diff --git a/drivers/pinctrl/mediatek/pinctrl-mtk-common.c b/drivers/pinctrl/mediatek/pinctrl-mtk-common.c index a9cedda164..4ae328699e 100644 --- a/drivers/pinctrl/mediatek/pinctrl-mtk-common.c +++ b/drivers/pinctrl/mediatek/pinctrl-mtk-common.c @@ -308,13 +308,31 @@ static const struct pinconf_param mtk_conf_params[] = { { "drive-strength", PIN_CONFIG_DRIVE_STRENGTH, 0 }, };
+int mtk_pinconf_bias_set_v0(struct udevice *dev, u32 pin, bool disable, + bool pullup, u32 val) +{ + return mtk_pinconf_bias_set_pu_pd(dev, pin, disable, pullup, val); +}
-int mtk_pinconf_bias_set_v0(struct udevice *dev, u32 pin, u32 arg, u32 val) +int mtk_pinconf_bias_set_v1(struct udevice *dev, u32 pin, bool disable, + bool pullup, u32 val) { - int err, disable, pullup; + int err;
- disable = (arg == PIN_CONFIG_BIAS_DISABLE); - pullup = (arg == PIN_CONFIG_BIAS_PULL_UP); + /* try pupd_r1_r0 if pullen_pullsel return error */ + err = mtk_pinconf_bias_set_pullen_pullsel(dev, pin, disable, pullup, + val); + if (err) + return mtk_pinconf_bias_set_pupd_r1_r0(dev, pin, disable, + pullup, val); + + return err; +} + +int mtk_pinconf_bias_set_pu_pd(struct udevice *dev, u32 pin, bool disable, + bool pullup, u32 val) +{ + int err;
if (disable) { err = mtk_hw_set_value(dev, pin, PINCTRL_PIN_REG_PU, 0); @@ -323,7 +341,6 @@ int mtk_pinconf_bias_set_v0(struct udevice *dev, u32 pin, u32 arg, u32 val) err = mtk_hw_set_value(dev, pin, PINCTRL_PIN_REG_PD, 0); if (err) return err; - } else { err = mtk_hw_set_value(dev, pin, PINCTRL_PIN_REG_PU, pullup); if (err) @@ -336,14 +353,10 @@ int mtk_pinconf_bias_set_v0(struct udevice *dev, u32 pin, u32 arg, u32 val) return 0; }
-int mtk_pinconf_bias_set_v1(struct udevice *dev, u32 pin, u32 arg, u32 val) +int mtk_pinconf_bias_set_pullen_pullsel(struct udevice *dev, u32 pin, + bool disable, bool pullup, u32 val) { - int err, disable, pullup, r0, r1; - - disable = (arg == PIN_CONFIG_BIAS_DISABLE); - pullup = (arg == PIN_CONFIG_BIAS_PULL_UP); - r0 = !!(val & 1); - r1 = !!(val & 2); + int err;
if (disable) { err = mtk_hw_set_value(dev, pin, PINCTRL_PIN_REG_PULLEN, 0); @@ -359,16 +372,53 @@ int mtk_pinconf_bias_set_v1(struct udevice *dev, u32 pin, u32 arg, u32 val) return err; }
- /* Also set PUPD/R0/R1 if the pin has them */ - err = mtk_hw_set_value(dev, pin, PINCTRL_PIN_REG_PUPD, !pullup); - if (err != -EINVAL) { - mtk_hw_set_value(dev, pin, PINCTRL_PIN_REG_R0, r0); - mtk_hw_set_value(dev, pin, PINCTRL_PIN_REG_R1, r1); + return 0; +} + +int mtk_pinconf_bias_set_pupd_r1_r0(struct udevice *dev, u32 pin, bool disable, + bool pullup, u32 val) +{ + int err, r0, r1; + + r0 = !!(val & 1); + r1 = !!(val & 2); + + if (disable) { + pullup = 0; + r0 = 0; + r1 = 0; }
+ /* MTK HW PUPD bit: 1 for pull-down, 0 for pull-up */ + err = mtk_hw_set_value(dev, pin, PINCTRL_PIN_REG_PUPD, !pullup); + if (err) + return err; + + /* Also set PUPD/R0/R1 if the pin has them */ + mtk_hw_set_value(dev, pin, PINCTRL_PIN_REG_R0, r0); + mtk_hw_set_value(dev, pin, PINCTRL_PIN_REG_R1, r1); + return 0; }
+int mtk_pinconf_bias_set(struct udevice *dev, u32 pin, u32 arg, u32 val) +{ + int err; + struct mtk_pinctrl_priv *priv = dev_get_priv(dev); + int rev = priv->soc->rev; + bool disable, pullup; + + disable = (arg == PIN_CONFIG_BIAS_DISABLE); + pullup = (arg == PIN_CONFIG_BIAS_PULL_UP); + + if (rev == MTK_PINCTRL_V0) + err = mtk_pinconf_bias_set_v0(dev, pin, disable, pullup, val); + else + err = mtk_pinconf_bias_set_v1(dev, pin, disable, pullup, val); + + return err; +} + int mtk_pinconf_input_enable_v1(struct udevice *dev, u32 pin, u32 arg) { int err; @@ -379,6 +429,18 @@ int mtk_pinconf_input_enable_v1(struct udevice *dev, u32 pin, u32 arg) err = mtk_hw_set_value(dev, pin, PINCTRL_PIN_REG_DIR, 0); if (err) return err; + + return 0; +} + +int mtk_pinconf_input_enable(struct udevice *dev, u32 pin, u32 arg) +{ + struct mtk_pinctrl_priv *priv = dev_get_priv(dev); + int rev = priv->soc->rev; + + if (rev == MTK_PINCTRL_V1) + return mtk_pinconf_input_enable_v1(dev, pin, arg); + return 0; }
@@ -410,7 +472,6 @@ int mtk_pinconf_drive_set_v0(struct udevice *dev, u32 pin, u32 arg) return 0; }
- int mtk_pinconf_drive_set_v1(struct udevice *dev, u32 pin, u32 arg) { struct mtk_pinctrl_priv *priv = dev_get_priv(dev); @@ -429,21 +490,30 @@ int mtk_pinconf_drive_set_v1(struct udevice *dev, u32 pin, u32 arg) return 0; }
+int mtk_pinconf_drive_set(struct udevice *dev, u32 pin, u32 arg) +{ + int err; + struct mtk_pinctrl_priv *priv = dev_get_priv(dev); + int rev = priv->soc->rev; + + if (rev == MTK_PINCTRL_V0) + err = mtk_pinconf_drive_set_v0(dev, pin, arg); + else + err = mtk_pinconf_drive_set_v1(dev, pin, arg); + + return err; +} + static int mtk_pinconf_set(struct udevice *dev, unsigned int pin, unsigned int param, unsigned int arg) { int err = 0; - struct mtk_pinctrl_priv *priv = dev_get_priv(dev); - int rev = priv->soc->rev;
switch (param) { case PIN_CONFIG_BIAS_DISABLE: case PIN_CONFIG_BIAS_PULL_UP: case PIN_CONFIG_BIAS_PULL_DOWN: - if (rev == MTK_PINCTRL_V0) - err = mtk_pinconf_bias_set_v0(dev, pin, param, arg); - else - err = mtk_pinconf_bias_set_v1(dev, pin, param, arg); + err = mtk_pinconf_bias_set(dev, pin, param, arg); if (err) goto err; break; @@ -456,8 +526,7 @@ static int mtk_pinconf_set(struct udevice *dev, unsigned int pin, goto err; break; case PIN_CONFIG_INPUT_ENABLE: - if (rev == MTK_PINCTRL_V1) - err = mtk_pinconf_input_enable_v1(dev, pin, param); + err = mtk_pinconf_input_enable(dev, pin, param); if (err) goto err; break; @@ -486,10 +555,7 @@ static int mtk_pinconf_set(struct udevice *dev, unsigned int pin, goto err; break; case PIN_CONFIG_DRIVE_STRENGTH: - if (rev == MTK_PINCTRL_V0) - err = mtk_pinconf_drive_set_v0(dev, pin, arg); - else - err = mtk_pinconf_drive_set_v1(dev, pin, arg); + err = mtk_pinconf_drive_set(dev, pin, arg); if (err) goto err; break; diff --git a/drivers/pinctrl/mediatek/pinctrl-mtk-common.h b/drivers/pinctrl/mediatek/pinctrl-mtk-common.h index 5e51a9a90c..735fb6fef8 100644 --- a/drivers/pinctrl/mediatek/pinctrl-mtk-common.h +++ b/drivers/pinctrl/mediatek/pinctrl-mtk-common.h @@ -192,4 +192,22 @@ void mtk_rmw(struct udevice *dev, u32 reg, u32 mask, u32 set); int mtk_pinctrl_common_probe(struct udevice *dev, struct mtk_pinctrl_soc *soc);
+#if CONFIG_IS_ENABLED(PINCONF) + +int mtk_pinconf_bias_set_pu_pd(struct udevice *dev, u32 pin, bool disable, + bool pullup, u32 val); +int mtk_pinconf_bias_set_pullen_pullsel(struct udevice *dev, u32 pin, + bool disable, bool pullup, u32 val); +int mtk_pinconf_bias_set_pupd_r1_r0(struct udevice *dev, u32 pin, bool disable, + bool pullup, u32 val); +int mtk_pinconf_bias_set_v0(struct udevice *dev, u32 pin, bool disable, + bool pullup, u32 val); +int mtk_pinconf_bias_set_v1(struct udevice *dev, u32 pin, bool disable, + bool pullup, u32 val); +int mtk_pinconf_input_enable_v1(struct udevice *dev, u32 pin, u32 arg); +int mtk_pinconf_drive_set_v0(struct udevice *dev, u32 pin, u32 arg); +int mtk_pinconf_drive_set_v1(struct udevice *dev, u32 pin, u32 arg); + +#endif + #endif /* __PINCTRL_MEDIATEK_H__ */