@@ -261,6 +261,8 @@ struct gpio_regmap *gpio_regmap_register(const struct gpio_regmap_config *config
chip->names = config->names;
chip->label = config->label ?: dev_name(config->parent);
chip->can_sleep = regmap_might_sleep(config->regmap);
+ chip->request = config->request;
+ chip->free = config->free;
chip->request = gpiochip_generic_request;
chip->free = gpiochip_generic_free;
@@ -6,6 +6,7 @@
struct device;
struct fwnode_handle;
struct gpio_regmap;
+struct gpio_chip;
struct irq_domain;
struct regmap;
@@ -40,6 +41,10 @@ struct regmap;
* @drvdata: (Optional) Pointer to driver specific data which is
* not used by gpio-remap but is provided "as is" to the
* driver callback(s).
+ * @request: (Optional) Hook for chip-specific activation, such as
+ * enabling module power and clock
+ * @free: (Optional) Hook for chip-specific deactivation, such as
+ * disabling module power and clock
*
* The ->reg_mask_xlate translates a given base address and GPIO offset to
* register and mask pair. The base address is one of the given register
@@ -83,6 +88,8 @@ struct gpio_regmap_config {
unsigned int *mask);
void *drvdata;
+ int (*request)(struct gpio_chip *gc, unsigned int offset);
+ void (*free)(struct gpio_chip *gc, unsigned int offset);
};
struct gpio_regmap *gpio_regmap_register(const struct gpio_regmap_config *config);
Allows to populate the gpio_regmap_config structure with request() and free() callbacks to set on the final gpio_chip structure. Signed-off-by: Mathieu Dubois-Briand <mathieu.dubois-briand@bootlin.com> --- drivers/gpio/gpio-regmap.c | 2 ++ include/linux/gpio/regmap.h | 7 +++++++ 2 files changed, 9 insertions(+)