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gpio: regmap: Allow to provide init_valid_mask callback

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Allows to populate the gpio_regmap_config structure with
init_valid_mask() callback to set on the final gpio_chip structure.

Reviewed-by: Michael Walle <mwalle@kernel.org>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Reviewed-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
Signed-off-by: Mathieu Dubois-Briand <mathieu.dubois-briand@bootlin.com>
Link: https://lore.kernel.org/r/20250824-mdb-max7360-support-v14-6-435cfda2b1ea@bootlin.com
Signed-off-by: Lee Jones <lee@kernel.org>
This commit is contained in:
Mathieu Dubois-Briand 2025-08-24 13:57:25 +02:00 • committed by Lee Jones
parent 553b75d4bf
commit 0627b71fa5
2 changed files with 8 additions and 0 deletions
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1
drivers/gpio/gpio-regmap.c
View file

@ -261,6 +261,7 @@ 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->init_valid_mask = config->init_valid_mask;
chip->request = gpiochip_generic_request;
chip->free = gpiochip_generic_free;

7
include/linux/gpio/regmap.h
View file

@ -6,6 +6,7 @@
struct device;
struct fwnode_handle;
struct gpio_regmap;
struct gpio_chip;
struct irq_domain;
struct regmap;
@ -40,6 +41,8 @@ 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).
* @init_valid_mask: (Optional) Routine to initialize @valid_mask, to be used
* if not all GPIOs are valid.
* @regmap_irq_chip: (Optional) Pointer on an regmap_irq_chip structure. If
* set, a regmap-irq device will be created and the IRQ
* domain will be set accordingly.
@ -93,6 +96,10 @@ struct gpio_regmap_config {
unsigned int offset, unsigned int *reg,
unsigned int *mask);
int (*init_valid_mask)(struct gpio_chip *gc,
unsigned long *valid_mask,
unsigned int ngpios);
void *drvdata;
};