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gpio: regmap: set gpio_chip of_node

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This is needed for properly registering GPIO regmap as a child of a regmap
pin controller.

Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com>
Reviewed-by: Michael Walle <michael@walle.cc>
Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com>
Acked-by: Bartosz Golaszewski <bgolaszewski@baylibre.com>
Link: https://lore.kernel.org/r/20210324081923.20379-3-noltari@gmail.com
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
This commit is contained in:
Álvaro Fernández Rojas 2021-03-24 09:19:03 +01:00 committed by Linus Walleij
parent 9c7d24693d
commit d46bf9ec45
2 changed files with 9 additions and 0 deletions
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5
drivers/gpio/gpio-regmap.c
View File

@ -254,6 +254,11 @@ struct gpio_regmap *gpio_regmap_register(const struct gpio_regmap_config *config
chip->names = config->names;
chip->label = config->label ?: dev_name(config->parent);
#if defined(CONFIG_OF_GPIO)
/* gpiolib will use of_node of the parent if chip->of_node is NULL */
chip->of_node = to_of_node(config->fwnode);
#endif /* CONFIG_OF_GPIO */
/*
* If our regmap is fast_io we should probably set can_sleep to false.
* Right now, the regmap doesn't save this property, nor is there any

4
include/linux/gpio/regmap.h
View File

@ -4,6 +4,7 @@
#define _LINUX_GPIO_REGMAP_H
struct device;
struct fwnode_handle;
struct gpio_regmap;
struct irq_domain;
struct regmap;
@ -16,6 +17,8 @@ struct regmap;
* @parent: The parent device
* @regmap: The regmap used to access the registers
* given, the name of the device is used
* @fwnode: (Optional) The firmware node.
* If not given, the fwnode of the parent is used.
* @label: (Optional) Descriptive name for GPIO controller.
* If not given, the name of the device is used.
* @ngpio: Number of GPIOs
@ -57,6 +60,7 @@ struct regmap;
struct gpio_regmap_config {
struct device *parent;
struct regmap *regmap;
struct fwnode_handle *fwnode;
const char *label;
int ngpio;