Merge tag 'gpio-fixes-v3.6-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-gpio

Pull gpio fixes from Linus Walleij:
 - Fix a resource leak in the SCH driver
 - Fix the register address calculation in the MSIC driver
 - Fix the PXA driver's devicetree functions
 - Delete redundant shadow variable leftovers in the MXC driver
 - Specify the GPIO base for the device tree probe in the MXC driver
 - Add a modalias for the i.MX driver
 - Fix off-by-one bug in the Samsung driver
 - Fix erroneous errorpath in the Langwell driver

* tag 'gpio-fixes-v3.6-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-gpio:
  drivers/gpio/gpio-langwell.c: fix error return code
  gpio: samsung: Fix off-by-one bug in gpio addresses
  ARM: dts: imx: add alias for gpio
  gpio/mxc: specify gpio base for device tree probe
  gpio/mxc: remove redundant shadow variables initialization
  GPIO: gpio-pxa: fix devicetree functions
  gpio: msic: Fix calculating register address in msic_gpio_to_oreg()
  gpio-sch: Fix leak of resource

1 files changed, 26 insertions, 0 deletions

diff --git a/drivers/gpio/gpio-pxa.c b/drivers/gpio/gpio-pxa.c
index 58a6a63a6ece..793767b0962a 100644
--- a/drivers/gpio/gpio-pxa.c
+++ b/drivers/gpio/gpio-pxa.c
@@ -62,6 +62,7 @@ int pxa_last_gpio;
 
 #ifdef CONFIG_OF
 static struct irq_domain *domain;
+static struct device_node *pxa_gpio_of_node;
 #endif
 
 struct pxa_gpio_chip {
@@ -277,6 +278,24 @@ static void pxa_gpio_set(struct gpio_chip *chip, unsigned offset, int value)
 				(value ? GPSR_OFFSET : GPCR_OFFSET));
 }
 
+#ifdef CONFIG_OF_GPIO
+static int pxa_gpio_of_xlate(struct gpio_chip *gc,
+			     const struct of_phandle_args *gpiospec,
+			     u32 *flags)
+{
+	if (gpiospec->args[0] > pxa_last_gpio)
+		return -EINVAL;
+
+	if (gc != &pxa_gpio_chips[gpiospec->args[0] / 32].chip)
+		return -EINVAL;
+
+	if (flags)
+		*flags = gpiospec->args[1];
+
+	return gpiospec->args[0] % 32;
+}
+#endif
+
 static int __devinit pxa_init_gpio_chip(int gpio_end,
 					int (*set_wake)(unsigned int, unsigned int))
 {
@@ -304,6 +323,11 @@ static int __devinit pxa_init_gpio_chip(int gpio_end,
 		c->get = pxa_gpio_get;
 		c->set = pxa_gpio_set;
 		c->to_irq = pxa_gpio_to_irq;
+#ifdef CONFIG_OF_GPIO
+		c->of_node = pxa_gpio_of_node;
+		c->of_xlate = pxa_gpio_of_xlate;
+		c->of_gpio_n_cells = 2;
+#endif
 
 		/* number of GPIOs on last bank may be less than 32 */
 		c->ngpio = (gpio + 31 > gpio_end) ? (gpio_end - gpio + 1) : 32;
@@ -505,6 +529,7 @@ static int pxa_irq_domain_map(struct irq_domain *d, unsigned int irq,
 
 const struct irq_domain_ops pxa_irq_domain_ops = {
 	.map	= pxa_irq_domain_map,
+	.xlate	= irq_domain_xlate_twocell,
 };
 
 #ifdef CONFIG_OF
@@ -545,6 +570,7 @@ static int __devinit pxa_gpio_probe_dt(struct platform_device *pdev)
 	}
 	domain = irq_domain_add_legacy(np, nr_gpios, irq_base, 0,
 				       &pxa_irq_domain_ops, NULL);
+	pxa_gpio_of_node = np;
 	return 0;
 err:
 	iounmap(gpio_reg_base);