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From d46bf9ec4596654f36245e3b14765bcb422be6ad Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?=C3=81lvaro=20Fern=C3=A1ndez=20Rojas?= <noltari@gmail.com>
Date: Wed, 24 Mar 2021 09:19:03 +0100
Subject: [PATCH 02/22] gpio: regmap: set gpio_chip of_node
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit
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>
---
drivers/gpio/gpio-regmap.c | 5 +++++
include/linux/gpio/regmap.h | 4 ++++
2 files changed, 9 insertions(+)
--- a/drivers/gpio/gpio-regmap.c
+++ b/drivers/gpio/gpio-regmap.c
@@ -254,6 +254,11 @@ struct gpio_regmap *gpio_regmap_register
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
--- 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;
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