Commit 8c987eb1 authored by Dario Binacchi's avatar Dario Binacchi Committed by Linus Walleij
Browse files

pinctrl: single: config: enable the pin's input 



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: default avatarDario Binacchi <dariobin@libero.it>
Acked-by: default avatarTony Lindgren <tony@atomide.com>
Link: https://lore.kernel.org/r/20210602150420.18202-1-dariobin@libero.it


Signed-off-by: default avatarLinus Walleij <linus.walleij@linaro.org>
parent 375eede3

drivers/pinctrl/pinctrl-single.c

+3 −0
Original line number Diff line number Diff line
@@ -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, },

	};