diff options
| author | Thierry Reding <treding@nvidia.com> | 2014-04-23 17:28:09 +0200 |
|---|---|---|
| committer | Marcel Ziswiler <marcel.ziswiler@toradex.com> | 2015-09-18 08:42:53 +0200 |
| commit | 2b49ca9ad7d17d1964382c94652907366b73e88e (patch) | |
| tree | a7b318ca36acc5793c425295e4249e6a30a81d26 /drivers | |
| parent | 8f99bd636b41b26b3a08f55cfe14ce523ab5a6a4 (diff) | |
gpio: of: Allow -gpio suffix for property names
Many bindings use the -gpio suffix in property names. Support this in
addition to the -gpios suffix when requesting GPIOs using the new
descriptor-based API.
Signed-off-by: Thierry Reding <treding@nvidia.com>
Acked-by: Alexandre Courbot <acourbot@nvidia.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
(cherry picked from commit dd34c37aa3e81715a1ed8da61fa438072428e188)
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/gpio/gpiolib.c | 18 |
1 files changed, 12 insertions, 6 deletions
diff --git a/drivers/gpio/gpiolib.c b/drivers/gpio/gpiolib.c index 50c4922fe53a..d0ca0a3348dd 100644 --- a/drivers/gpio/gpiolib.c +++ b/drivers/gpio/gpiolib.c @@ -2289,17 +2289,23 @@ static struct gpio_desc *of_find_gpio(struct device *dev, const char *con_id, unsigned int idx, enum gpio_lookup_flags *flags) { + static const char *suffixes[] = { "gpios", "gpio" }; char prop_name[32]; /* 32 is max size of property name */ enum of_gpio_flags of_flags; struct gpio_desc *desc; + unsigned int i; - if (con_id) - snprintf(prop_name, 32, "%s-gpios", con_id); - else - snprintf(prop_name, 32, "gpios"); + for (i = 0; i < ARRAY_SIZE(suffixes); i++) { + if (con_id) + snprintf(prop_name, 32, "%s-%s", con_id, suffixes[i]); + else + snprintf(prop_name, 32, "%s", suffixes[i]); - desc = of_get_named_gpiod_flags(dev->of_node, prop_name, idx, - &of_flags); + desc = of_get_named_gpiod_flags(dev->of_node, prop_name, idx, + &of_flags); + if (!IS_ERR(desc)) + break; + } if (IS_ERR(desc)) return desc; |