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Subject[PATCH 2/4] pinctrl/rockchip: support setting input-enable param
Date
Handle the PIN_CONFIG_INPUT_ENABLE param for configuring GPIOs as input.

Signed-off-by: Caleb Connolly <kc@postmarketos.org>
---
drivers/pinctrl/pinctrl-rockchip.c | 12 +++++++++++-
1 file changed, 11 insertions(+), 1 deletion(-)

diff --git a/drivers/pinctrl/pinctrl-rockchip.c b/drivers/pinctrl/pinctrl-rockchip.c
index d54fc1cdf609..9d50d9756bb9 100644
--- a/drivers/pinctrl/pinctrl-rockchip.c
+++ b/drivers/pinctrl/pinctrl-rockchip.c
@@ -2129,7 +2129,7 @@ static int rockchip_pinconf_set(struct pinctrl_dev *pctldev, unsigned int pin,
param = pinconf_to_config_param(configs[i]);
arg = pinconf_to_config_argument(configs[i]);

- if (param == (PIN_CONFIG_OUTPUT | PIN_CONFIG_INPUT_ENABLE)) {
+ if (param == PIN_CONFIG_OUTPUT || param == PIN_CONFIG_INPUT_ENABLE) {
/*
* Check for gpio driver not being probed yet.
* The lock makes sure that either gpio-probe has completed
@@ -2181,6 +2181,16 @@ static int rockchip_pinconf_set(struct pinctrl_dev *pctldev, unsigned int pin,
if (rc)
return rc;
break;
+ case PIN_CONFIG_INPUT_ENABLE:
+ rc = rockchip_set_mux(bank, pin - bank->pin_base,
+ RK_FUNC_GPIO);
+ if (rc != RK_FUNC_GPIO)
+ return -EINVAL;
+
+ rc = gpio->direction_input(gpio, pin - bank->pin_base);
+ if (rc)
+ return rc;
+ break;
case PIN_CONFIG_DRIVE_STRENGTH:
/* rk3288 is the first with per-pin drive-strength */
if (!info->ctrl->drv_calc_reg)
--
2.35.1
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