From 2956b5d94a76b596fa5057c2b3ca915cb27d7652 Mon Sep 17 00:00:00 2001 From: Mika Westerberg Date: Mon, 23 Jan 2017 15:34:34 +0300 Subject: pinctrl / gpio: Introduce .set_config() callback for GPIO chips Currently we already have two pin configuration related callbacks available for GPIO chips .set_single_ended() and .set_debounce(). In future we expect to have even more, which does not scale well if we need to add yet another callback to the GPIO chip structure for each possible configuration parameter. Better solution is to reuse what we already have available in the generic pinconf. To support this, we introduce a new .set_config() callback for GPIO chips. The callback takes a single packed pin configuration value as parameter. This can then be extended easily beyond what is currently supported by just adding new types to the generic pinconf enum. If the GPIO driver is backed up by a pinctrl driver the GPIO driver can just assign gpiochip_generic_config() (introduced in this patch) to .set_config and that will take care configuration requests are directed to the pinctrl driver. We then convert the existing drivers over .set_config() and finally remove the .set_single_ended() and .set_debounce() callbacks. Suggested-by: Linus Walleij Signed-off-by: Mika Westerberg Reviewed-by: Andy Shevchenko Signed-off-by: Linus Walleij --- drivers/gpio/gpio-wcove.c | 13 ++++++------- 1 file changed, 6 insertions(+), 7 deletions(-) (limited to 'drivers/gpio/gpio-wcove.c') diff --git a/drivers/gpio/gpio-wcove.c b/drivers/gpio/gpio-wcove.c index 34baee5b1dd6..97613de5304e 100644 --- a/drivers/gpio/gpio-wcove.c +++ b/drivers/gpio/gpio-wcove.c @@ -202,17 +202,16 @@ static void wcove_gpio_set(struct gpio_chip *chip, regmap_update_bits(wg->regmap, to_reg(gpio, CTRL_OUT), 1, 0); } -static int wcove_gpio_set_single_ended(struct gpio_chip *chip, - unsigned int gpio, - enum single_ended_mode mode) +static int wcove_gpio_set_config(struct gpio_chip *chip, unsigned int gpio, + unsigned long config) { struct wcove_gpio *wg = gpiochip_get_data(chip); - switch (mode) { - case LINE_MODE_OPEN_DRAIN: + switch (pinconf_to_config_param(config)) { + case PIN_CONFIG_DRIVE_OPEN_DRAIN: return regmap_update_bits(wg->regmap, to_reg(gpio, CTRL_OUT), CTLO_DRV_MASK, CTLO_DRV_OD); - case LINE_MODE_PUSH_PULL: + case PIN_CONFIG_DRIVE_PUSH_PULL: return regmap_update_bits(wg->regmap, to_reg(gpio, CTRL_OUT), CTLO_DRV_MASK, CTLO_DRV_CMOS); default: @@ -411,7 +410,7 @@ static int wcove_gpio_probe(struct platform_device *pdev) wg->chip.get_direction = wcove_gpio_get_direction; wg->chip.get = wcove_gpio_get; wg->chip.set = wcove_gpio_set; - wg->chip.set_single_ended = wcove_gpio_set_single_ended, + wg->chip.set_config = wcove_gpio_set_config, wg->chip.base = -1; wg->chip.ngpio = WCOVE_VGPIO_NUM; wg->chip.can_sleep = true; -- cgit 1.4.1