gpio/gpiolib-of: Create of_mm_gpiochip_remove
Create counterpart of of_mm_gpiochip_add(). This way the modules that
can be removable do not duplicate the cleanup code.
Suggested-by: Alexandre Courbot <gnurou@gmail.com>
Signed-off-by: Ricardo Ribalda Delgado <ricardo.ribalda@gmail.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
diff --git a/drivers/gpio/gpiolib-of.c b/drivers/gpio/gpiolib-of.c
index 604dbe6..3e2c6af 100644
--- a/drivers/gpio/gpiolib-of.c
+++ b/drivers/gpio/gpiolib-of.c
@@ -204,6 +204,23 @@
}
EXPORT_SYMBOL(of_mm_gpiochip_add);
+/**
+ * of_mm_gpiochip_remove - Remove memory mapped GPIO chip (bank)
+ * @mm_gc: pointer to the of_mm_gpio_chip allocated structure
+ */
+void of_mm_gpiochip_remove(struct of_mm_gpio_chip *mm_gc)
+{
+ struct gpio_chip *gc = &mm_gc->gc;
+
+ if (!mm_gc)
+ return;
+
+ gpiochip_remove(gc);
+ iounmap(mm_gc->regs);
+ kfree(gc->label);
+}
+EXPORT_SYMBOL(of_mm_gpiochip_remove);
+
#ifdef CONFIG_PINCTRL
static void of_gpiochip_add_pin_range(struct gpio_chip *chip)
{
diff --git a/include/linux/of_gpio.h b/include/linux/of_gpio.h
index 38fc050..69dbe31 100644
--- a/include/linux/of_gpio.h
+++ b/include/linux/of_gpio.h
@@ -52,6 +52,7 @@
extern int of_mm_gpiochip_add(struct device_node *np,
struct of_mm_gpio_chip *mm_gc);
+extern void of_mm_gpiochip_remove(struct of_mm_gpio_chip *mm_gc);
extern void of_gpiochip_add(struct gpio_chip *gc);
extern void of_gpiochip_remove(struct gpio_chip *gc);