On Sat, Oct 26, 2024 at 4:06 AM Nícolas F. R. A. Prado
<nfraprado@xxxxxxxxxxxxx> wrote:
>
> Currently the set_config callback in the gpio_chip registered by the
> pinctrl_paris driver only supports configuring a single parameter on
> specific pins (the input debounce of the EINT controller, on pins that
> support it), even though many other configurations are already
> implemented and available through the pinctrl API for configuration of
> pins by the Devicetree and other drivers.
>
> Expose all configurations currently implemented through the GPIO API so
> they can also be set from userspace, which is particularly useful to
> allow testing them from userspace.
>
> Signed-off-by: Nícolas F. R. A. Prado <nfraprado@xxxxxxxxxxxxx>
Reviewed-by: Chen-Yu Tsai <wenst@xxxxxxxxxxxx>
> ---
> drivers/pinctrl/mediatek/pinctrl-paris.c | 26 +++++++++++++-------------
> 1 file changed, 13 insertions(+), 13 deletions(-)
>
> diff --git a/drivers/pinctrl/mediatek/pinctrl-paris.c b/drivers/pinctrl/mediatek/pinctrl-paris.c
> index 87e958d827bf939aa6006794287698be4936f25e..c9455de266a447ab7f5446c1511bef0ef9c9128e 100644
> --- a/drivers/pinctrl/mediatek/pinctrl-paris.c
> +++ b/drivers/pinctrl/mediatek/pinctrl-paris.c
> @@ -255,10 +255,9 @@ static int mtk_pinconf_get(struct pinctrl_dev *pctldev,
> return err;
> }
>
> -static int mtk_pinconf_set(struct pinctrl_dev *pctldev, unsigned int pin,
> - enum pin_config_param param, u32 arg)
> +static int mtk_paris_pin_config_set(struct mtk_pinctrl *hw, unsigned int pin,
> + enum pin_config_param param, u32 arg)
> {
> - struct mtk_pinctrl *hw = pinctrl_dev_get_drvdata(pctldev);
> const struct mtk_pin_desc *desc;
> int err = -ENOTSUPP;
> u32 reg;
> @@ -795,9 +794,9 @@ static int mtk_pconf_group_set(struct pinctrl_dev *pctldev, unsigned group,
> int i, ret;
>
> for (i = 0; i < num_configs; i++) {
> - ret = mtk_pinconf_set(pctldev, grp->pin,
> - pinconf_to_config_param(configs[i]),
> - pinconf_to_config_argument(configs[i]));
> + ret = mtk_paris_pin_config_set(hw, grp->pin,
> + pinconf_to_config_param(configs[i]),
> + pinconf_to_config_argument(configs[i]));
> if (ret < 0)
> return ret;
>
> @@ -937,18 +936,19 @@ static int mtk_gpio_set_config(struct gpio_chip *chip, unsigned int offset,
> {
> struct mtk_pinctrl *hw = gpiochip_get_data(chip);
> const struct mtk_pin_desc *desc;
> - u32 debounce;
> + enum pin_config_param param = pinconf_to_config_param(config);
> + u32 arg = pinconf_to_config_argument(config);
>
> desc = (const struct mtk_pin_desc *)&hw->soc->pins[offset];
>
> - if (!hw->eint ||
> - pinconf_to_config_param(config) != PIN_CONFIG_INPUT_DEBOUNCE ||
> - desc->eint.eint_n == EINT_NA)
> - return -ENOTSUPP;
> + if (param == PIN_CONFIG_INPUT_DEBOUNCE) {
> + if (!hw->eint || desc->eint.eint_n == EINT_NA)
> + return -ENOTSUPP;
>
> - debounce = pinconf_to_config_argument(config);
> + return mtk_eint_set_debounce(hw->eint, desc->eint.eint_n, arg);
> + }
>
> - return mtk_eint_set_debounce(hw->eint, desc->eint.eint_n, debounce);
> + return mtk_paris_pin_config_set(hw, offset, param, arg);
> }
>
> static int mtk_build_gpiochip(struct mtk_pinctrl *hw)
>
> --
> 2.47.0
>
>
