From 11c43bb022b373d2fdb84950ebf1911362f3f010 Mon Sep 17 00:00:00 2001 From: Dmitry Torokhov Date: Wed, 11 Sep 2019 00:52:05 -0700 Subject: gpiolib: of: add a fallback for wlf,reset GPIO name The old Arizona binding did not use -gpio or -gpios suffix, so devm_gpiod_get() does not work for it. As it is the one of a few users of devm_gpiod_get_from_of_node() API that I want to remove, I'd rather have a small quirk in the gpiolib OF handler, and switch Arizona driver to devm_gpiod_get(). Signed-off-by: Dmitry Torokhov Link: https://lore.kernel.org/r/20190911075215.78047-2-dmitry.torokhov@gmail.com Signed-off-by: Linus Walleij --- drivers/gpio/gpiolib-of.c | 16 ++++++++++++++++ 1 file changed, 16 insertions(+) (limited to 'drivers') diff --git a/drivers/gpio/gpiolib-of.c b/drivers/gpio/gpiolib-of.c index d5b98b48eb5d..3b18240acb0a 100644 --- a/drivers/gpio/gpiolib-of.c +++ b/drivers/gpio/gpiolib-of.c @@ -438,6 +438,19 @@ static struct gpio_desc *of_find_regulator_gpio(struct device *dev, const char * return desc; } +static struct gpio_desc *of_find_arizona_gpio(struct device *dev, + const char *con_id, + enum of_gpio_flags *of_flags) +{ + if (!IS_ENABLED(CONFIG_MFD_ARIZONA)) + return ERR_PTR(-ENOENT); + + if (!con_id || strcmp(con_id, "wlf,reset")) + return ERR_PTR(-ENOENT); + + return of_get_named_gpiod_flags(dev->of_node, con_id, 0, of_flags); +} + struct gpio_desc *of_find_gpio(struct device *dev, const char *con_id, unsigned int idx, unsigned long *flags) { @@ -488,6 +501,9 @@ struct gpio_desc *of_find_gpio(struct device *dev, const char *con_id, if (IS_ERR(desc) && PTR_ERR(desc) != -EPROBE_DEFER) desc = of_find_regulator_gpio(dev, con_id, &of_flags); + if (IS_ERR(desc) && PTR_ERR(desc) == -ENOENT) + desc = of_find_arizona_gpio(dev, con_id, &of_flags); + if (IS_ERR(desc)) return desc; -- cgit v1.2.3