From 17c43f1a42135cdca28991658615323c2ca92e37 Mon Sep 17 00:00:00 2001 From: Simon Glass Date: Sun, 6 Mar 2016 19:27:51 -0700 Subject: 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 Reviewed-by: Bin Meng --- include/asm-generic/gpio.h | 10 +++++----- 1 file changed, 5 insertions(+), 5 deletions(-) (limited to 'include') 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_ */ -- cgit v1.2.3