diff options
| author | Drew Fustini <drew@beagleboard.org> | 2020-07-15 23:37:38 +0200 |
|---|---|---|
| committer | Linus Walleij <linus.walleij@linaro.org> | 2020-07-16 10:28:56 +0200 |
| commit | 40e30d26d909af89de2dcd0b4abdd27c47ac2235 (patch) | |
| tree | 55cfe806e51c4ac7d5fe85b3617372702d5faaf1 | |
| parent | 89b060a01b533a02fdb0dbb6810b5ca64cb33e5e (diff) | |
| download | lwn-40e30d26d909af89de2dcd0b4abdd27c47ac2235.tar.gz lwn-40e30d26d909af89de2dcd0b4abdd27c47ac2235.zip | |
gpio: omap: handle pin config bias flags
Modify omap_gpio_set_config() to handle pin config bias flags by calling
gpiochip_generic_config().
The pin group for the gpio line must have the corresponding pinconf
properties:
PIN_CONFIG_BIAS_PULL_UP requires "pinctrl-single,bias-pullup"
PIN_CONFIG_BIAS_PULL_DOWN requires "pinctrl-single,bias-pulldown"
This is necessary for pcs_pinconf_set() to find the requested bias
parameter in the PIN_MAP_TYPE_CONFIGS_GROUP pinctrl map.
Signed-off-by: Drew Fustini <drew@beagleboard.org>
Acked-by: Grygorii Strashko <grygorii.strashko@ti.com>
Acked-by: Tony Lindgren <tony@atomide.com>
Link: https://lore.kernel.org/r/20200715213738.1640030-1-drew@beagleboard.org
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
| -rw-r--r-- | drivers/gpio/gpio-omap.c | 17 |
1 files changed, 13 insertions, 4 deletions
diff --git a/drivers/gpio/gpio-omap.c b/drivers/gpio/gpio-omap.c index b8e2ecc3eade..eba303cff7cb 100644 --- a/drivers/gpio/gpio-omap.c +++ b/drivers/gpio/gpio-omap.c @@ -896,12 +896,21 @@ static int omap_gpio_set_config(struct gpio_chip *chip, unsigned offset, unsigned long config) { u32 debounce; + int ret = -ENOTSUPP; - if (pinconf_to_config_param(config) != PIN_CONFIG_INPUT_DEBOUNCE) - return -ENOTSUPP; + if ((pinconf_to_config_param(config) == PIN_CONFIG_BIAS_DISABLE) || + (pinconf_to_config_param(config) == PIN_CONFIG_BIAS_PULL_UP) || + (pinconf_to_config_param(config) == PIN_CONFIG_BIAS_PULL_DOWN)) + { + ret = gpiochip_generic_config(chip, offset, config); + } + else if (pinconf_to_config_param(config) == PIN_CONFIG_INPUT_DEBOUNCE) + { + debounce = pinconf_to_config_argument(config); + ret = omap_gpio_debounce(chip, offset, debounce); + } - debounce = pinconf_to_config_argument(config); - return omap_gpio_debounce(chip, offset, debounce); + return ret; } static void omap_gpio_set(struct gpio_chip *chip, unsigned offset, int value) |