diff options
| author | Paul Cercueil <paul@crapouillou.net> | 2019-11-19 18:52:10 +0300 |
|---|---|---|
| committer | Linus Walleij <linus.walleij@linaro.org> | 2019-11-21 17:09:47 +0300 |
| commit | 7009d046a60116a4066ee2c9b005b43f0972c9b2 (patch) | |
| tree | 944b7f48fe2db691e83f31ae4a0d227a4a741842 /drivers/pinctrl | |
| parent | 2635adb48bd517343a163ccc1f7ee126eb24bd90 (diff) | |
| download | linux-7009d046a60116a4066ee2c9b005b43f0972c9b2.tar.xz | |
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>
Diffstat (limited to 'drivers/pinctrl')
| -rw-r--r-- | drivers/pinctrl/pinctrl-ingenic.c | 23 |
1 files changed, 22 insertions, 1 deletions
diff --git a/drivers/pinctrl/pinctrl-ingenic.c b/drivers/pinctrl/pinctrl-ingenic.c index 06cae38f6daf..81a405e27d94 100644 --- a/drivers/pinctrl/pinctrl-ingenic.c +++ b/drivers/pinctrl/pinctrl-ingenic.c @@ -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(); } |