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

Signed-off-by: Álvaro Fernández Rojas <redacted>
---
 v3: introduce patch needed for properly parsing gpio-ranges.

 drivers/gpio/gpio-regmap.c  | 1 +
 include/linux/gpio/regmap.h | 3 +++
 2 files changed, 4 insertions(+)

diff --git a/drivers/gpio/gpio-regmap.c b/drivers/gpio/gpio-regmap.c
index 5412cb3b0b2a..752ccd780b7d 100644
--- a/drivers/gpio/gpio-regmap.c
+++ b/drivers/gpio/gpio-regmap.c

@@ -249,6 +249,7 @@ struct gpio_regmap *gpio_regmap_register(const

struct gpio_regmap_config *config

 	chip = &gpio->gpio_chip;
 	chip->parent = config->parent;
+	chip->of_node = config->of_node;

 	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..f6e638e32d2a 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 device_node;
 struct gpio_regmap;
 struct irq_domain;
 struct regmap;

@@ -14,6 +15,7 @@ struct regmap;
 /**
  * struct gpio_regmap_config - Description of a generic regmap 

gpio_chip.
  * @parent:		The parent device
+ * @of_node:		The device node

  * @regmap:		The regmap used to access the registers
  *			given, the name of the device is used
  * @label:		(Optional) Descriptive name for GPIO controller.

@@ -56,6 +58,7 @@ struct regmap;
  */
 struct gpio_regmap_config {
 	struct device *parent;
+	struct device_node *of_node;
 	struct regmap *regmap;

 	const char *label;