Commit 7009d046 authored by Paul Cercueil's avatar Paul Cercueil Committed by Linus Walleij
Browse files

pinctrl: ingenic: Handle PIN_CONFIG_OUTPUT config 



This makes the driver support the 'output-low' and 'output-high'
devicetree properties in gpio-hog sub-nodes.

Signed-off-by: default avatarPaul Cercueil <paul@crapouillou.net>
Link: https://lore.kernel.org/r/20191119155211.102527-1-paul@crapouillou.net


Signed-off-by: default avatarLinus Walleij <linus.walleij@linaro.org>
parent 2635adb4

drivers/pinctrl/pinctrl-ingenic.c

+22 −1
Original line number Diff line number Diff line
@@ -1801,19 +1801,30 @@ static void ingenic_set_bias(struct ingenic_pinctrl *jzpc, 
		ingenic_config_pin(jzpc, pin, JZ4740_GPIO_PULL_DIS, !enabled);

}



static void ingenic_set_output_level(struct ingenic_pinctrl *jzpc,

				     unsigned int pin, bool high)

{

	if (jzpc->version >= ID_JZ4770)

		ingenic_config_pin(jzpc, pin, JZ4760_GPIO_PAT0, high);

	else

		ingenic_config_pin(jzpc, pin, JZ4740_GPIO_DATA, high);

}



static int ingenic_pinconf_set(struct pinctrl_dev *pctldev, unsigned int pin,

		unsigned long *configs, unsigned int num_configs)

{

	struct ingenic_pinctrl *jzpc = pinctrl_dev_get_drvdata(pctldev);

	unsigned int idx = pin % PINS_PER_GPIO_CHIP;

	unsigned int offt = pin / PINS_PER_GPIO_CHIP;

	unsigned int cfg;

	unsigned int cfg, arg;

	int ret;



	for (cfg = 0; cfg < num_configs; cfg++) {

		switch (pinconf_to_config_param(configs[cfg])) {

		case PIN_CONFIG_BIAS_DISABLE:

		case PIN_CONFIG_BIAS_PULL_UP:

		case PIN_CONFIG_BIAS_PULL_DOWN:

		case PIN_CONFIG_OUTPUT:

			continue;

		default:

			return -ENOTSUPP;
@@ -1821,6 +1832,8 @@ static int ingenic_pinconf_set(struct pinctrl_dev *pctldev, unsigned int pin, 
	}



	for (cfg = 0; cfg < num_configs; cfg++) {

		arg = pinconf_to_config_argument(configs[cfg]);



		switch (pinconf_to_config_param(configs[cfg])) {

		case PIN_CONFIG_BIAS_DISABLE:

			dev_dbg(jzpc->dev, "disable pull-over for pin P%c%u\n",
@@ -1844,6 +1857,14 @@ static int ingenic_pinconf_set(struct pinctrl_dev *pctldev, unsigned int pin, 
			ingenic_set_bias(jzpc, pin, true);

			break;



		case PIN_CONFIG_OUTPUT:

			ret = pinctrl_gpio_direction_output(pin);

			if (ret)

				return ret;



			ingenic_set_output_level(jzpc, pin, arg);

			break;



		default:

			unreachable();

		}

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