Merge tag 'gpio-v3.20-1' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-gpio

Pull GPIO changes from Linus Walleij:
 "This is the GPIO bulk changes for the v3.20 series:

  GPIOLIB core changes:
   - Create and use of_mm_gpiochip_remove() for removing memory-mapped
     OF GPIO chips
   - GPIO MMIO library suppports bgpio_set_multiple for switching
     several lines at once, a feature merged in the last cycle.

  New drivers:
   - New driver for the APM X-gene standby GPIO controller
   - New driver for the Fujitsu MB86S7x GPIO controller

  Cleanups:
   - Moved rcar driver to use gpiolib irqchip
   - Moxart converted to the GPIO MMIO library
   - GE driver converted to GPIO MMIO library
   - Move sx150x to irqdomain
   - Move max732x to irqdomain
   - Move vx855 to use managed resources
   - Move dwapb to use managed resources
   - Clean tc3589x from platform data
   - Clean stmpe driver to use device tree only probe

  New subtypes:
   - sx1506 support in the sx150x driver
   - Quark 1000 SoC support in the SCH driver
   - Support X86 in the Xilinx driver
   - Support PXA1928 in the PXA driver

  Extended drivers:
   - max732x supports device tree probe
   - sx150x supports device tree probe

  Various minor cleanups and bug fixes"

* tag 'gpio-v3.20-1' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-gpio: (61 commits)
  gpio: kconfig: replace PPC_OF with PPC
  gpio: pxa: add PXA1928 gpio type support
  dt/bindings: gpio: add compatible string for marvell,pxa1928-gpio
  gpio: pxa: remove mach IRQ includes
  gpio: max732x: use an inline function for container cast
  gpio: use sizeof() instead of hardcoded values
  gpio: max732x: add set_multiple function
  gpio: sch: Consolidate similar algorithms
  gpio: tz1090-pdc: Use resource_size to fix off-by-one resource size calculation
  gpio: ge: Convert to use devm_kstrdup
  gpio: correctly use const char * const
  gpio: sx150x: fixup OF support
  gpio: mpc8xxx: Use of_mm_gpiochip_remove
  gpio: Add Fujitsu MB86S7x GPIO driver
  gpio: mpc8xxx: Convert to platform device interface.
  gpio: zevio: Use of_mm_gpiochip_remove
  gpio: gpio-mm-lantiq: Use of_mm_gpiochip_remove
  gpio: gpio-mm-lantiq: Use of_property_read_u32
  gpio: gpio-mm-lantiq: Do not replicate code
  gpio :gpio-mm-lantiq: Use devm_kzalloc
  ...

1 files changed, 18 insertions, 5 deletions

diff --git a/drivers/gpio/gpio-mpc5200.c b/drivers/gpio/gpio-mpc5200.c
index 8ce6c9510035..4c542153e923 100644
--- a/drivers/gpio/gpio-mpc5200.c
+++ b/drivers/gpio/gpio-mpc5200.c
@@ -155,10 +155,12 @@ static int mpc52xx_wkup_gpiochip_probe(struct platform_device *ofdev)
 	struct gpio_chip *gc;
 	int ret;
 
-	chip = kzalloc(sizeof(*chip), GFP_KERNEL);
+	chip = devm_kzalloc(&ofdev->dev, sizeof(*chip), GFP_KERNEL);
 	if (!chip)
 		return -ENOMEM;
 
+	platform_set_drvdata(ofdev, chip);
+
 	gc = &chip->mmchip.gc;
 
 	gc->ngpio            = 8;
@@ -181,7 +183,11 @@ static int mpc52xx_wkup_gpiochip_probe(struct platform_device *ofdev)
 
 static int mpc52xx_gpiochip_remove(struct platform_device *ofdev)
 {
-	return -EBUSY;
+	struct mpc52xx_gpiochip *chip = platform_get_drvdata(ofdev);
+
+	of_mm_gpiochip_remove(&chip->mmchip);
+
+	return 0;
 }
 
 static const struct of_device_id mpc52xx_wkup_gpiochip_match[] = {
@@ -314,10 +320,12 @@ static int mpc52xx_simple_gpiochip_probe(struct platform_device *ofdev)
 	struct mpc52xx_gpio __iomem *regs;
 	int ret;
 
-	chip = kzalloc(sizeof(*chip), GFP_KERNEL);
+	chip = devm_kzalloc(&ofdev->dev, sizeof(*chip), GFP_KERNEL);
 	if (!chip)
 		return -ENOMEM;
 
+	platform_set_drvdata(ofdev, chip);
+
 	gc = &chip->mmchip.gc;
 
 	gc->ngpio            = 32;
@@ -363,11 +371,16 @@ static int __init mpc52xx_gpio_init(void)
 	return 0;
 }
 
-
 /* Make sure we get initialised before anyone else tries to use us */
 subsys_initcall(mpc52xx_gpio_init);
 
-/* No exit call at the moment as we cannot unregister of gpio chips */
+static void __exit mpc52xx_gpio_exit(void)
+{
+	platform_driver_unregister(&mpc52xx_wkup_gpiochip_driver);
+
+	platform_driver_unregister(&mpc52xx_simple_gpiochip_driver);
+}
+module_exit(mpc52xx_gpio_exit);
 
 MODULE_DESCRIPTION("Freescale MPC52xx gpio driver");
 MODULE_AUTHOR("Sascha Hauer <s.hauer@pengutronix.de");