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gpiolib: constify passed device_node pointer

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Several gpiolib functions receive pointer to struct device_node which is
later passed to OF functions.  These OF functions accept already pointer
to const, so gpiolib can follow similar approach to indicate they are
not modifying the struct device_node.

Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com>
Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Bartosz Golaszewski <bgolaszewski@baylibre.com>
This commit is contained in:
Krzysztof Kozlowski
2021-07-28 16:42:28 +02:00
committed by Bartosz Golaszewski
parent a065d5615f
commit e6ae9a833e
4 changed files with 17 additions and 16 deletions
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8
include/linux/gpio/consumer.h
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@@ -609,7 +609,7 @@ struct gpio_desc *devm_fwnode_get_gpiod_from_child(struct device *dev,
#if IS_ENABLED(CONFIG_GPIOLIB) && IS_ENABLED(CONFIG_OF_GPIO)
struct device_node;
struct gpio_desc *gpiod_get_from_of_node(struct device_node *node,
struct gpio_desc *gpiod_get_from_of_node(const struct device_node *node,
const char *propname, int index,
enum gpiod_flags dflags,
const char *label);
@@ -619,7 +619,7 @@ struct gpio_desc *gpiod_get_from_of_node(struct device_node *node,
struct device_node;
static inline
struct gpio_desc *gpiod_get_from_of_node(struct device_node *node,
struct gpio_desc *gpiod_get_from_of_node(const struct device_node *node,
const char *propname, int index,
enum gpiod_flags dflags,
const char *label)
@@ -633,7 +633,7 @@ struct gpio_desc *gpiod_get_from_of_node(struct device_node *node,
struct device_node;
struct gpio_desc *devm_gpiod_get_from_of_node(struct device *dev,
struct device_node *node,
const struct device_node *node,
const char *propname, int index,
enum gpiod_flags dflags,
const char *label);
@@ -644,7 +644,7 @@ struct device_node;
static inline
struct gpio_desc *devm_gpiod_get_from_of_node(struct device *dev,
struct device_node *node,
const struct device_node *node,
const char *propname, int index,
enum gpiod_flags dflags,
const char *label)