Merge tag 'gpio-for-linus' of git://git.secretlab.ca/git/linux-2.6

Pull GPIO driver changes from Grant Likely:
 "Lots of gpio changes, both to core code and drivers.

  Changes do touch architecture code to remove the need for separate
  arm/gpio.h includes in most architectures.

  Some new drivers are added, and a number of gpio drivers are converted
  to use irq_domains for gpio inputs used as interrupts.  Device tree
  support has been amended to allow multiple gpio_chips to use the same
  device tree node.

  Remaining changes are primarily bug fixes."

* tag 'gpio-for-linus' of git://git.secretlab.ca/git/linux-2.6: (33 commits)
  gpio/generic: initialize basic_mmio_gpio shadow variables properly
  gpiolib: Remove 'const' from data argument of gpiochip_find()
  gpio/rc5t583: add gpio driver for RICOH PMIC RC5T583
  gpiolib: quiet gpiochip_add boot message noise
  gpio: mpc8xxx: Prevent NULL pointer deref in demux handler
  gpio/lpc32xx: Add device tree support
  gpio: Adjust of_xlate API to support multiple GPIO chips
  gpiolib: Implement devm_gpio_request_one()
  gpio-mcp23s08: dbg_show: fix pullup configuration display
  Add support for TCA6424A
  gpio/omap: (re)fix wakeups on level-triggered GPIOs
  gpio/omap: fix broken context restore for non-OFF mode transitions
  gpio/omap: fix missing check in *_runtime_suspend()
  gpio/omap: remove cpu_is_omapxxxx() checks from *_runtime_resume()
  gpio/omap: remove suspend/resume callbacks
  gpio/omap: remove retrigger variable in gpio_irq_handler
  gpio/omap: remove saved_wakeup field from struct gpio_bank
  gpio/omap: remove suspend_wakeup field from struct gpio_bank
  gpio/omap: remove saved_fallingdetect, saved_risingdetect
  gpio/omap: remove virtual_irq_start variable
  ...

Conflicts:
	drivers/gpio/gpio-samsung.c

4 files changed, 66 insertions, 2 deletions

diff --git a/include/linux/basic_mmio_gpio.h b/include/linux/basic_mmio_gpio.h
index feb91219674..1c504ca5bdb 100644
--- a/include/linux/basic_mmio_gpio.h
+++ b/include/linux/basic_mmio_gpio.h
@@ -67,6 +67,10 @@ int bgpio_remove(struct bgpio_chip *bgc);
 int bgpio_init(struct bgpio_chip *bgc, struct device *dev,
                unsigned long sz, void __iomem *dat, void __iomem *set,
                void __iomem *clr, void __iomem *dirout, void __iomem *dirin,
-               bool big_endian);
+               unsigned long flags);
+
+#define BGPIOF_BIG_ENDIAN               BIT(0)
+#define BGPIOF_UNREADABLE_REG_SET       BIT(1) /* reg_set is unreadable */
+#define BGPIOF_UNREADABLE_REG_DIR       BIT(2) /* reg_dir is unreadable */
 
 #endif /* __BASIC_MMIO_GPIO_H */
diff --git a/include/linux/gpio.h b/include/linux/gpio.h
index 6155ecf192b..f07fc2d0815 100644
--- a/include/linux/gpio.h
+++ b/include/linux/gpio.h
@@ -1,6 +1,8 @@
 #ifndef __LINUX_GPIO_H
 #define __LINUX_GPIO_H
 
+#include <linux/errno.h>
+
 /* see Documentation/gpio.txt */
 
 /* make these flag values available regardless of GPIO kconfig options */
@@ -20,6 +22,11 @@
 /* Gpio pin is open source */
 #define GPIOF_OPEN_SOURCE       (1 << 3)
 
+#define GPIOF_EXPORT            (1 << 2)
+#define GPIOF_EXPORT_CHANGEABLE (1 << 3)
+#define GPIOF_EXPORT_DIR_FIXED  (GPIOF_EXPORT)
+#define GPIOF_EXPORT_DIR_CHANGEABLE (GPIOF_EXPORT | GPIOF_EXPORT_CHANGEABLE)
+
 /**
  * struct gpio - a structure describing a GPIO with configuration
  * @gpio:       the GPIO number
@@ -33,7 +40,39 @@ struct gpio {
 };
 
 #ifdef CONFIG_GENERIC_GPIO
+
+#ifdef CONFIG_ARCH_HAVE_CUSTOM_GPIO_H
 #include <asm/gpio.h>
+#else
+
+#include <asm-generic/gpio.h>
+
+static inline int gpio_get_value(unsigned int gpio)
+{
+        return __gpio_get_value(gpio);
+}
+
+static inline void gpio_set_value(unsigned int gpio, int value)
+{
+        __gpio_set_value(gpio, value);
+}
+
+static inline int gpio_cansleep(unsigned int gpio)
+{
+        return __gpio_cansleep(gpio);
+}
+
+static inline int gpio_to_irq(unsigned int gpio)
+{
+        return __gpio_to_irq(gpio);
+}
+
+static inline int irq_to_gpio(unsigned int irq)
+{
+        return -EINVAL;
+}
+
+#endif
 
 #else
 
@@ -55,12 +94,24 @@ static inline int gpio_request(unsigned gpio, const char *label)
         return -ENOSYS;
 }
 
+static inline int devm_gpio_request(struct device *dev, unsigned gpio,
+                                    const char *label)
+{
+        return -ENOSYS;
+}
+
 static inline int gpio_request_one(unsigned gpio,
                                         unsigned long flags, const char *label)
 {
         return -ENOSYS;
 }
 
+static inline int devm_gpio_request_one(struct device *dev, unsigned gpio,
+                                        unsigned long flags, const char *label)
+{
+        return -ENOSYS;
+}
+
 static inline int gpio_request_array(const struct gpio *array, size_t num)
 {
         return -ENOSYS;
@@ -74,6 +125,14 @@ static inline void gpio_free(unsigned gpio)
         WARN_ON(1);
 }
 
+static inline void devm_gpio_free(struct device *dev, unsigned gpio)
+{
+        might_sleep();
+
+        /* GPIO can never have been requested */
+        WARN_ON(1);
+}
+
 static inline void gpio_free_array(const struct gpio *array, size_t num)
 {
         might_sleep();
diff --git a/include/linux/mfd/rc5t583.h b/include/linux/mfd/rc5t583.h
index c42fe92a727..3661c59aa1e 100644
--- a/include/linux/mfd/rc5t583.h
+++ b/include/linux/mfd/rc5t583.h
@@ -292,6 +292,7 @@ struct rc5t583 {
  * rc5t583_platform_data: Platform data for ricoh rc5t583 pmu.
  * The board specific data is provided through this structure.
  * @irq_base: Irq base number on which this device registers their interrupts.
+ * @gpio_base: GPIO base from which gpio of this device will start.
  * @enable_shutdown: Enable shutdown through the input pin "shutdown".
  * @regulator_deepsleep_slot: The slot number on which device goes to sleep
  *              in device sleep mode.
@@ -303,6 +304,7 @@ struct rc5t583 {
 
 struct rc5t583_platform_data {
         int             irq_base;
+        int             gpio_base;
         bool            enable_shutdown;
         int             regulator_deepsleep_slot[RC5T583_REGULATOR_MAX];
         unsigned long   regulator_ext_pwr_control[RC5T583_REGULATOR_MAX];
diff --git a/include/linux/of_gpio.h b/include/linux/of_gpio.h
index 81733d12cbe..c454f579674 100644
--- a/include/linux/of_gpio.h
+++ b/include/linux/of_gpio.h
@@ -58,7 +58,6 @@ extern int of_mm_gpiochip_add(struct device_node *np,
 
 extern void of_gpiochip_add(struct gpio_chip *gc);
 extern void of_gpiochip_remove(struct gpio_chip *gc);
-extern struct gpio_chip *of_node_to_gpiochip(struct device_node *np);
 extern int of_gpio_simple_xlate(struct gpio_chip *gc,
                                 const struct of_phandle_args *gpiospec,
                                 u32 *flags);