diff options
| author | Linus Walleij <linus.walleij@linaro.org> | 2016-10-03 10:09:40 +0200 |
|---|---|---|
| committer | Linus Walleij <linus.walleij@linaro.org> | 2016-10-03 15:27:05 +0200 |
| commit | ea713bc450054aed3114da74bf76cfda64b698d0 (patch) | |
| tree | 5846b9332fb38171a22be90fbfbcf31255080427 /drivers/gpio/gpiolib.c | |
| parent | 3085a4a459c91b7e8647d25b38b975c334e78c8c (diff) | |
| download | linux-ea713bc450054aed3114da74bf76cfda64b698d0.tar.bz2 | |
gpio: OF: separation of concerns
The generic GPIO library directly implement code for of_find_gpio()
which is only used with CONFIG_OF and causes compilation problems
on archs that do not even have stubs for OF functions, especially
on UM that does not implement any IO remap functions.
Move the function to gpiolib-of.c, implement a static inline stub
in gpiolib.h returning PTR_ERR(-ENOENT) if CONFIG_OF_GPIO is not
set and be done with it.
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Diffstat (limited to 'drivers/gpio/gpiolib.c')
| -rw-r--r-- | drivers/gpio/gpiolib.c | 39 |
1 files changed, 0 insertions, 39 deletions
diff --git a/drivers/gpio/gpiolib.c b/drivers/gpio/gpiolib.c index 19a665f8d455..5404cdcfed19 100644 --- a/drivers/gpio/gpiolib.c +++ b/drivers/gpio/gpiolib.c @@ -2883,45 +2883,6 @@ void gpiod_remove_lookup_table(struct gpiod_lookup_table *table) mutex_unlock(&gpio_lookup_lock); } -static struct gpio_desc *of_find_gpio(struct device *dev, const char *con_id, - unsigned int idx, - enum gpio_lookup_flags *flags) -{ - char prop_name[32]; /* 32 is max size of property name */ - enum of_gpio_flags of_flags; - struct gpio_desc *desc; - unsigned int i; - - for (i = 0; i < ARRAY_SIZE(gpio_suffixes); i++) { - if (con_id) - snprintf(prop_name, sizeof(prop_name), "%s-%s", con_id, - gpio_suffixes[i]); - else - snprintf(prop_name, sizeof(prop_name), "%s", - gpio_suffixes[i]); - - desc = of_get_named_gpiod_flags(dev->of_node, prop_name, idx, - &of_flags); - if (!IS_ERR(desc) || (PTR_ERR(desc) != -ENOENT)) - break; - } - - if (IS_ERR(desc)) - return desc; - - if (of_flags & OF_GPIO_ACTIVE_LOW) - *flags |= GPIO_ACTIVE_LOW; - - if (of_flags & OF_GPIO_SINGLE_ENDED) { - if (of_flags & OF_GPIO_ACTIVE_LOW) - *flags |= GPIO_OPEN_DRAIN; - else - *flags |= GPIO_OPEN_SOURCE; - } - - return desc; -} - static struct gpio_desc *acpi_find_gpio(struct device *dev, const char *con_id, unsigned int idx, |