[PATCH v8 02/22] gpio: regmap: set gpio_chip of_node
From: Álvaro Fernández Rojas <hidden>
Date: 2021-03-17 14:38:58
Also in:
linux-devicetree, linux-gpio, lkml
Subsystem:
gpio regmap, gpio subsystem, the rest · Maintainers:
Michael Walle, Linus Walleij, Bartosz Golaszewski, Linus Torvalds
This is needed for properly registering GPIO regmap as a child of a regmap pin controller. Signed-off-by: Álvaro Fernández Rojas <redacted> Reviewed-by: Michael Walle <redacted> Reviewed-by: Andy Shevchenko <redacted> --- v8: no changes v7: add gpio-regmap.c comment v6: add comment and simplify of_node assignment v5: switch to fwnode v4: fix documentation v3: introduce patch needed for properly parsing gpio-range drivers/gpio/gpio-regmap.c | 2 ++ include/linux/gpio/regmap.h | 4 ++++ 2 files changed, 6 insertions(+)
diff --git a/drivers/gpio/gpio-regmap.c b/drivers/gpio/gpio-regmap.c
index 5412cb3b0b2a..2215d712da08 100644
--- a/drivers/gpio/gpio-regmap.c
+++ b/drivers/gpio/gpio-regmap.c@@ -249,6 +249,8 @@ struct gpio_regmap *gpio_regmap_register(const struct gpio_regmap_config *config chip = &gpio->gpio_chip; chip->parent = config->parent; + /* gpiolib will use of_node of the parent if chip->of_node is NULL */ + chip->of_node = to_of_node(config->fwnode); chip->base = -1; chip->ngpio = config->ngpio; chip->names = config->names;
diff --git a/include/linux/gpio/regmap.h b/include/linux/gpio/regmap.h
index ad76f3d0a6ba..334dd928042b 100644
--- a/include/linux/gpio/regmap.h
+++ b/include/linux/gpio/regmap.h@@ -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;
--
2.20.1
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