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pinctrl/rockchip: support setting input-enable param 

commit 42d90a1e5c upstream.

Handle the PIN_CONFIG_INPUT_ENABLE param for configuring GPIOs as input.

Signed-off-by: Caleb Connolly <kc@postmarketos.org>
Link: https://lore.kernel.org/r/20220328005005.72492-3-kc@postmarketos.org
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Caleb Connolly 2022-03-28 01:50:03 +01:00 committed by Greg Kroah-Hartman
parent 986f5ea354
commit 1d63a9943e
1 changed files with 11 additions and 1 deletions
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12
drivers/pinctrl/pinctrl-rockchip.c
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@ -2144,7 +2144,7 @@ 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
@ -2196,6 +2196,16 @@ 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)