Patch "gpiolib: make gpio_device_get() and gpio_device_put() public" has been added to the 6.6-stable tree

[Sasha Levin <sashal@xxxxxxxxxx>]

This is a note to let you know that I've just added the patch titled

    gpiolib: make gpio_device_get() and gpio_device_put() public

to the 6.6-stable tree which can be found at:
    http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary

The filename of the patch is:
     gpiolib-make-gpio_device_get-and-gpio_device_put-pub.patch
and it can be found in the queue-6.6 subdirectory.

If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.



commit 3e0d54c488f5855867efc728eef006d41f12c30f
Author: Bartosz Golaszewski <bartosz.golaszewski@xxxxxxxxxx>
Date:   Wed Sep 27 16:29:21 2023 +0200

    gpiolib: make gpio_device_get() and gpio_device_put() public
    
    [ Upstream commit 36aa129f221c9070afd8dff03154ab49702a5b1b ]
    
    In order to start migrating away from accessing struct gpio_chip by
    users other than their owners, let's first make the reference management
    functions for the opaque struct gpio_device public in the driver.h
    header.
    
    Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@xxxxxxxxxx>
    Reviewed-by: Linus Walleij <linus.walleij@xxxxxxxxxx>
    Reviewed-by: Andy Shevchenko <andriy.shevchenko@xxxxxxxxxxxxxxx>
    Stable-dep-of: 48e1b4d369cf ("gpiolib: remove the GPIO device from the list when it's unregistered")
    Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>

diff --git a/drivers/gpio/gpiolib.c b/drivers/gpio/gpiolib.c
index 40a0022ea719..c2b40d7138fa 100644
--- a/drivers/gpio/gpiolib.c
+++ b/drivers/gpio/gpiolib.c
@@ -1058,6 +1058,30 @@ static struct gpio_chip *find_chip_by_name(const char *name)
 	return gpiochip_find((void *)name, gpiochip_match_name);
 }
 
+/**
+ * gpio_device_get() - Increase the reference count of this GPIO device
+ * @gdev: GPIO device to increase the refcount for
+ *
+ * Returns:
+ * Pointer to @gdev.
+ */
+struct gpio_device *gpio_device_get(struct gpio_device *gdev)
+{
+	return to_gpio_device(get_device(&gdev->dev));
+}
+EXPORT_SYMBOL_GPL(gpio_device_get);
+
+/**
+ * gpio_device_put() - Decrease the reference count of this GPIO device and
+ *                     possibly free all resources associated with it.
+ * @gdev: GPIO device to decrease the reference count for
+ */
+void gpio_device_put(struct gpio_device *gdev)
+{
+	put_device(&gdev->dev);
+}
+EXPORT_SYMBOL_GPL(gpio_device_put);
+
 #ifdef CONFIG_GPIOLIB_IRQCHIP
 
 /*
diff --git a/drivers/gpio/gpiolib.h b/drivers/gpio/gpiolib.h
index a0a67569300b..aa1926083689 100644
--- a/drivers/gpio/gpiolib.h
+++ b/drivers/gpio/gpiolib.h
@@ -86,16 +86,6 @@ static inline struct gpio_device *to_gpio_device(struct device *dev)
 	return container_of(dev, struct gpio_device, dev);
 }
 
-static inline struct gpio_device *gpio_device_get(struct gpio_device *gdev)
-{
-	return to_gpio_device(get_device(&gdev->dev));
-}
-
-static inline void gpio_device_put(struct gpio_device *gdev)
-{
-	put_device(&gdev->dev);
-}
-
 /* gpio suffixes used for ACPI and device tree lookup */
 static __maybe_unused const char * const gpio_suffixes[] = { "gpios", "gpio" };
 
diff --git a/include/linux/gpio/driver.h b/include/linux/gpio/driver.h
index 4f0c5d62c8f3..64c214317a83 100644
--- a/include/linux/gpio/driver.h
+++ b/include/linux/gpio/driver.h
@@ -607,6 +607,9 @@ extern int devm_gpiochip_add_data_with_key(struct device *dev, struct gpio_chip
 extern struct gpio_chip *gpiochip_find(void *data,
 			      int (*match)(struct gpio_chip *gc, void *data));
 
+struct gpio_device *gpio_device_get(struct gpio_device *gdev);
+void gpio_device_put(struct gpio_device *gdev);
+
 bool gpiochip_line_is_irq(struct gpio_chip *gc, unsigned int offset);
 int gpiochip_reqres_irq(struct gpio_chip *gc, unsigned int offset);
 void gpiochip_relres_irq(struct gpio_chip *gc, unsigned int offset);