* Dario Binacchi <dariobin@xxxxxxxxx> [210514 16:38]:
> It enables / disables the input buffer. As explained in the description
> of 'enum pin_config_param' this does not affect the pin's ability to
> drive output.
>
> Signed-off-by: Dario Binacchi <dariobin@xxxxxxxxx>
> ---
>
> drivers/pinctrl/pinctrl-single.c | 3 +++
> 1 file changed, 3 insertions(+)
>
> diff --git a/drivers/pinctrl/pinctrl-single.c b/drivers/pinctrl/pinctrl-single.c
> index 2c9c9835f375..4e7cdb9ee855 100644
> --- a/drivers/pinctrl/pinctrl-single.c
> +++ b/drivers/pinctrl/pinctrl-single.c
> @@ -534,6 +534,7 @@ static int pcs_pinconf_get(struct pinctrl_dev *pctldev,
> case PIN_CONFIG_DRIVE_STRENGTH:
> case PIN_CONFIG_SLEW_RATE:
> case PIN_CONFIG_MODE_LOW_POWER:
> + case PIN_CONFIG_INPUT_ENABLE:
> default:
> *config = data;
> break;
> @@ -572,6 +573,7 @@ static int pcs_pinconf_set(struct pinctrl_dev *pctldev,
> case PIN_CONFIG_DRIVE_STRENGTH:
> case PIN_CONFIG_SLEW_RATE:
> case PIN_CONFIG_MODE_LOW_POWER:
> + case PIN_CONFIG_INPUT_ENABLE:
> shift = ffs(func->conf[i].mask) - 1;
> data &= ~func->conf[i].mask;
> data |= (arg << shift) & func->conf[i].mask;
> @@ -918,6 +920,7 @@ static int pcs_parse_pinconf(struct pcs_device *pcs, struct device_node *np,
> static const struct pcs_conf_type prop2[] = {
> { "pinctrl-single,drive-strength", PIN_CONFIG_DRIVE_STRENGTH, },
> { "pinctrl-single,slew-rate", PIN_CONFIG_SLEW_RATE, },
> + { "pinctrl-single,input-enable", PIN_CONFIG_INPUT_ENABLE, },
> { "pinctrl-single,input-schmitt", PIN_CONFIG_INPUT_SCHMITT, },
> { "pinctrl-single,low-power-mode", PIN_CONFIG_MODE_LOW_POWER, },
> };
Looks OK to me if this works for Linus W. You need another patch to
update the binding though:
Documentation/devicetree/bindings/pinctrl/pincfg-node.yaml
Or if there is such a patch floating around, I was not in Cc :)
Regards,
Tony
