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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: Paul Cercueil <paul@crapouillou.net>
Link: https://lore.kernel.org/r/20191119155211.102527-1-paul@crapouillou.net
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
This commit is contained in:
Paul Cercueil 2019-11-19 16:52:10 +01:00 committed by Linus Walleij
parent 2635adb48b
commit 7009d046a6
1 changed files with 22 additions and 1 deletions
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23
drivers/pinctrl/pinctrl-ingenic.c
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@ -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();
}