diff options
| author | Dmitry Torokhov <dmitry.torokhov@gmail.com> | 2019-09-12 20:22:39 -0700 |
|---|---|---|
| committer | Linus Walleij <linus.walleij@linaro.org> | 2019-10-03 12:04:28 +0200 |
| commit | 13949fa9daa91a60c7cfef40755f7611cc2cf653 (patch) | |
| tree | 443c771cc46b00b469441305f0ca4a00cfb2672f /drivers/gpio/gpiolib-devres.c | |
| parent | 2d2f116d69c127099553afe0d87cf9c0bbe2759e (diff) | |
gpiolib: introduce fwnode_gpiod_get_index()
This introduces fwnode_gpiod_get_index() that iterates through common gpio
suffixes when trying to locate a GPIO within a given firmware node.
We also switch devm_fwnode_gpiod_get_index() to call
fwnode_gpiod_get_index() instead of iterating through GPIO suffixes on
its own.
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Link: https://lore.kernel.org/r/20190913032240.50333-3-dmitry.torokhov@gmail.com
Reviewed-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Diffstat (limited to 'drivers/gpio/gpiolib-devres.c')
| -rw-r--r-- | drivers/gpio/gpiolib-devres.c | 16 |
1 files changed, 1 insertions, 15 deletions
diff --git a/drivers/gpio/gpiolib-devres.c b/drivers/gpio/gpiolib-devres.c index 9a0475c87f95..4421be09b960 100644 --- a/drivers/gpio/gpiolib-devres.c +++ b/drivers/gpio/gpiolib-devres.c @@ -205,29 +205,15 @@ struct gpio_desc *devm_fwnode_gpiod_get_index(struct device *dev, enum gpiod_flags flags, const char *label) { - char prop_name[32]; /* 32 is max size of property name */ struct gpio_desc **dr; struct gpio_desc *desc; - unsigned int i; dr = devres_alloc(devm_gpiod_release, sizeof(struct gpio_desc *), GFP_KERNEL); if (!dr) return ERR_PTR(-ENOMEM); - 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 = fwnode_get_named_gpiod(fwnode, prop_name, index, flags, - label); - if (!IS_ERR(desc) || (PTR_ERR(desc) != -ENOENT)) - break; - } + desc = fwnode_gpiod_get_index(fwnode, con_id, index, flags, label); if (IS_ERR(desc)) { devres_free(dr); return desc; |