return false;
}
-static void of_gpio_flags_quirks(struct device_node *np,
+static void of_gpio_flags_quirks(const struct device_node *np,
const char *propname,
enum of_gpio_flags *flags,
int index)
* value on the error condition. If @flags is not NULL the function also fills
* in flags for the GPIO.
*/
-static struct gpio_desc *of_get_named_gpiod_flags(struct device_node *np,
+static struct gpio_desc *of_get_named_gpiod_flags(const struct device_node *np,
const char *propname, int index, enum of_gpio_flags *flags)
{
struct of_phandle_args gpiospec;
return desc;
}
-int of_get_named_gpio_flags(struct device_node *np, const char *list_name,
+int of_get_named_gpio_flags(const struct device_node *np, const char *list_name,
int index, enum of_gpio_flags *flags)
{
struct gpio_desc *desc;
*
* In case of error an ERR_PTR() is returned.
*/
-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)
#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);
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)
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);
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)
return container_of(gc, struct of_mm_gpio_chip, gc);
}
-extern int of_get_named_gpio_flags(struct device_node *np,
+extern int of_get_named_gpio_flags(const struct device_node *np,
const char *list_name, int index, enum of_gpio_flags *flags);
extern int of_mm_gpiochip_add_data(struct device_node *np,
#include <linux/errno.h>
/* Drivers may not strictly depend on the GPIO support, so let them link. */
-static inline int of_get_named_gpio_flags(struct device_node *np,
+static inline int of_get_named_gpio_flags(const struct device_node *np,
const char *list_name, int index, enum of_gpio_flags *flags)
{
if (flags)
* The above example defines four GPIOs, two of which are not specified.
* This function will return '4'
*/
-static inline int of_gpio_named_count(struct device_node *np, const char* propname)
+static inline int of_gpio_named_count(const struct device_node *np,
+ const char *propname)
{
return of_count_phandle_with_args(np, propname, "#gpio-cells");
}
*
* Same as of_gpio_named_count, but hard coded to use the 'gpios' property
*/
-static inline int of_gpio_count(struct device_node *np)
+static inline int of_gpio_count(const struct device_node *np)
{
return of_gpio_named_count(np, "gpios");
}
-static inline int of_get_gpio_flags(struct device_node *np, int index,
+static inline int of_get_gpio_flags(const struct device_node *np, int index,
enum of_gpio_flags *flags)
{
return of_get_named_gpio_flags(np, "gpios", index, flags);
* Returns GPIO number to use with Linux generic GPIO API, or one of the errno
* value on the error condition.
*/
-static inline int of_get_named_gpio(struct device_node *np,
+static inline int of_get_named_gpio(const struct device_node *np,
const char *propname, int index)
{
return of_get_named_gpio_flags(np, propname, index, NULL);
* Returns GPIO number to use with Linux generic GPIO API, or one of the errno
* value on the error condition.
*/
-static inline int of_get_gpio(struct device_node *np, int index)
+static inline int of_get_gpio(const struct device_node *np, int index)
{
return of_get_gpio_flags(np, index, NULL);
}