diff options
| author | David Lechner <[email protected]> | 2026-03-30 11:00:33 -0500 |
|---|---|---|
| committer | David Lechner <[email protected]> | 2026-04-07 10:47:04 -0500 |
| commit | 937884083ea8be579ac910cd9b9c69d15741aa12 (patch) | |
| tree | da797084158471834e47029901a8ee07dd00cfb5 | |
| parent | 6db02cfebf68f23e690517fe788fd628746d068b (diff) | |
pinctrl: mediatek: add handling for RSEL register
Add a new PINCTRL_PIN_REG_RSEL register type and a new function
mtk_pinconf_bias_set_pu_pd_rsel() to handle setting it.
Some MediaTek SoCs have a pin configuration register called RSEL that
sets the resistance value for bias pullup/pulldown.
Link: https://patch.msgid.link/[email protected]
Signed-off-by: David Lechner <[email protected]>
| -rw-r--r-- | drivers/pinctrl/mediatek/pinctrl-mtk-common.c | 14 | ||||
| -rw-r--r-- | drivers/pinctrl/mediatek/pinctrl-mtk-common.h | 3 |
2 files changed, 17 insertions, 0 deletions
diff --git a/drivers/pinctrl/mediatek/pinctrl-mtk-common.c b/drivers/pinctrl/mediatek/pinctrl-mtk-common.c index d152e216634..1028b8a93f5 100644 --- a/drivers/pinctrl/mediatek/pinctrl-mtk-common.c +++ b/drivers/pinctrl/mediatek/pinctrl-mtk-common.c @@ -450,6 +450,20 @@ int mtk_pinconf_bias_set_pupd_r1_r0(struct udevice *dev, u32 pin, bool disable, return 0; } +int mtk_pinconf_bias_set_pu_pd_rsel(struct udevice *dev, u32 pin, bool disable, + bool pullup, u32 val) +{ + int err; + + /* val is expected to be one of MTK_PULL_SET_RSEL_XXX */ + + err = mtk_pinconf_bias_set_pu_pd(dev, pin, disable, pullup, val); + if (err) + return err; + + return mtk_hw_set_value(dev, pin, PINCTRL_PIN_REG_RSEL, val & 0x7); +} + int mtk_pinconf_bias_set(struct udevice *dev, u32 pin, u32 arg, u32 val) { int err; diff --git a/drivers/pinctrl/mediatek/pinctrl-mtk-common.h b/drivers/pinctrl/mediatek/pinctrl-mtk-common.h index 58f13613633..1215fb7094b 100644 --- a/drivers/pinctrl/mediatek/pinctrl-mtk-common.h +++ b/drivers/pinctrl/mediatek/pinctrl-mtk-common.h @@ -67,6 +67,7 @@ enum { PINCTRL_PIN_REG_PUPD, PINCTRL_PIN_REG_R0, PINCTRL_PIN_REG_R1, + PINCTRL_PIN_REG_RSEL, PINCTRL_PIN_REG_MAX, }; @@ -253,6 +254,8 @@ 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_pu_pd_rsel(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, |