Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/linville/wirel...

[pandora-kernel.git] / arch / arm / plat-samsung / include / plat / gpio-core.h

diff --git a/arch/arm/plat-samsung/include/plat/gpio-core.h b/arch/arm/plat-samsung/include/plat/gpio-core.h
index e358c7d..13a22b8 100644 (file)
--- a/arch/arm/plat-samsung/include/plat/gpio-core.h
+++ b/arch/arm/plat-samsung/include/plat/gpio-core.h
@@ -43,6 +43,8 @@ struct s3c_gpio_cfg;
  * struct s3c_gpio_chip - wrapper for specific implementation of gpio
  * @chip: The chip structure to be exported via gpiolib.
  * @base: The base pointer to the gpio configuration registers.
+ * @group: The group register number for gpio interrupt support.
+ * @irq_base: The base irq number.
  * @config: special function and pull-resistor control information.
  * @lock: Lock for exclusive access to this gpio bank.
  * @pm_save: Save information for suspend/resume support.
@@ -63,6 +65,8 @@ struct s3c_gpio_chip {
        struct s3c_gpio_cfg     *config;
        struct s3c_gpio_pm      *pm;
        void __iomem            *base;
+       int                     irq_base;
+       int                     group;
        spinlock_t               lock;
 #ifdef CONFIG_PM
        u32                     pm_save[4];
@@ -118,6 +122,17 @@ extern void samsung_gpiolib_add_4bit2_chips(struct s3c_gpio_chip *chip,
 extern void samsung_gpiolib_add_4bit(struct s3c_gpio_chip *chip);
 extern void samsung_gpiolib_add_4bit2(struct s3c_gpio_chip *chip);
 
+
+/**
+ * samsung_gpiolib_to_irq - convert gpio pin to irq number
+ * @chip: The gpio chip that the pin belongs to.
+ * @offset: The offset of the pin in the chip.
+ *
+ * This helper returns the irq number calculated from the chip->irq_base and
+ * the provided offset.
+ */
+extern int samsung_gpiolib_to_irq(struct gpio_chip *chip, unsigned int offset);
+
 /* exported for core SoC support to change */
 extern struct s3c_gpio_cfg s3c24xx_gpiocfg_default;