diff options
| author | Simon Glass <sjg@chromium.org> | 2016-03-06 19:27:51 -0700 |
|---|---|---|
| committer | Bin Meng <bmeng.cn@gmail.com> | 2016-03-17 10:27:22 +0800 |
| commit | 17c43f1a42135cdca28991658615323c2ca92e37 (patch) | |
| tree | c431d3eded5445758fe6c95853749a5e6d01da5f /include/asm-generic/gpio.h | |
| parent | bbf2478026c0addfff000f31cc1b5639cbff52cb (diff) | |
gpio: Use const where possible
Some functions do not change the struct gpio_desc parameter. Update these to
use const so this is clear.
Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
Diffstat (limited to 'include/asm-generic/gpio.h')
| -rw-r--r-- | include/asm-generic/gpio.h | 10 |
1 files changed, 5 insertions, 5 deletions
diff --git a/include/asm-generic/gpio.h b/include/asm-generic/gpio.h index 059f33906e..68b5f0b3c2 100644 --- a/include/asm-generic/gpio.h +++ b/include/asm-generic/gpio.h @@ -133,7 +133,7 @@ struct gpio_desc { * previously returned by gpio_request_by_name() * @return true if valid, false if not */ -static inline bool dm_gpio_is_valid(struct gpio_desc *desc) +static inline bool dm_gpio_is_valid(const struct gpio_desc *desc) { return desc->dev != NULL; } @@ -369,7 +369,7 @@ int gpio_get_values_as_int(const int *gpio_list); * @count: Number of GPIOs * @return resulting integer value, or -ve on error */ -int dm_gpio_get_values_as_int(struct gpio_desc *desc_list, int count); +int dm_gpio_get_values_as_int(const struct gpio_desc *desc_list, int count); /** * gpio_claim_vector() - claim a number of GPIOs for input @@ -536,9 +536,9 @@ int gpio_free_list_nodev(struct gpio_desc *desc, int count); * previously returned by gpio_request_by_name() * @return GPIO value (0 for inactive, 1 for active) or -ve on error */ -int dm_gpio_get_value(struct gpio_desc *desc); +int dm_gpio_get_value(const struct gpio_desc *desc); -int dm_gpio_set_value(struct gpio_desc *desc, int value); +int dm_gpio_set_value(const struct gpio_desc *desc, int value); /** * dm_gpio_set_dir() - Set the direction for a GPIO @@ -577,6 +577,6 @@ int dm_gpio_set_dir_flags(struct gpio_desc *desc, ulong flags); * previously returned by gpio_request_by_name() * @return GPIO number, or -ve if not found */ -int gpio_get_number(struct gpio_desc *desc); +int gpio_get_number(const struct gpio_desc *desc); #endif /* _ASM_GENERIC_GPIO_H_ */ |