Merge git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6

[pandora-kernel.git] / arch / arm / plat-omap / gpio.c

diff --git a/arch/arm/plat-omap/gpio.c b/arch/arm/plat-omap/gpio.c
index 7fd89ba..9298bc0 100644 (file)
--- a/arch/arm/plat-omap/gpio.c
+++ b/arch/arm/plat-omap/gpio.c
@@ -476,14 +476,12 @@ static void _set_gpio_dataout(struct gpio_bank *bank, int gpio, int enable)
        __raw_writel(l, reg);
 }
 
-static int __omap_get_gpio_datain(int gpio)
+static int _get_gpio_datain(struct gpio_bank *bank, int gpio)
 {
-       struct gpio_bank *bank;
        void __iomem *reg;
 
        if (check_gpio(gpio) < 0)
                return -EINVAL;
-       bank = get_gpio_bank(gpio);
        reg = bank->base;
        switch (bank->method) {
 #ifdef CONFIG_ARCH_OMAP1
@@ -524,6 +522,53 @@ static int __omap_get_gpio_datain(int gpio)
                        & (1 << get_gpio_index(gpio))) != 0;
 }
 
+static int _get_gpio_dataout(struct gpio_bank *bank, int gpio)
+{
+       void __iomem *reg;
+
+       if (check_gpio(gpio) < 0)
+               return -EINVAL;
+       reg = bank->base;
+
+       switch (bank->method) {
+#ifdef CONFIG_ARCH_OMAP1
+       case METHOD_MPUIO:
+               reg += OMAP_MPUIO_OUTPUT;
+               break;
+#endif
+#ifdef CONFIG_ARCH_OMAP15XX
+       case METHOD_GPIO_1510:
+               reg += OMAP1510_GPIO_DATA_OUTPUT;
+               break;
+#endif
+#ifdef CONFIG_ARCH_OMAP16XX
+       case METHOD_GPIO_1610:
+               reg += OMAP1610_GPIO_DATAOUT;
+               break;
+#endif
+#ifdef CONFIG_ARCH_OMAP730
+       case METHOD_GPIO_730:
+               reg += OMAP730_GPIO_DATA_OUTPUT;
+               break;
+#endif
+#ifdef CONFIG_ARCH_OMAP850
+       case METHOD_GPIO_850:
+               reg += OMAP850_GPIO_DATA_OUTPUT;
+               break;
+#endif
+#if defined(CONFIG_ARCH_OMAP24XX) || defined(CONFIG_ARCH_OMAP34XX) || \
+               defined(CONFIG_ARCH_OMAP4)
+       case METHOD_GPIO_24XX:
+               reg += OMAP24XX_GPIO_DATAOUT;
+               break;
+#endif
+       default:
+               return -EINVAL;
+       }
+
+       return (__raw_readl(reg) & (1 << get_gpio_index(gpio))) != 0;
+}
+
 #define MOD_REG_BIT(reg, bit_mask, set)        \
 do {   \
        int l = __raw_readl(base + reg); \
@@ -1189,6 +1234,7 @@ static void gpio_mask_irq(unsigned int irq)
        struct gpio_bank *bank = get_irq_chip_data(irq);
 
        _set_gpio_irqenable(bank, gpio, 0);
+       _set_gpio_triggering(bank, get_gpio_index(gpio), IRQ_TYPE_NONE);
 }
 
 static void gpio_unmask_irq(unsigned int irq)
@@ -1196,6 +1242,11 @@ static void gpio_unmask_irq(unsigned int irq)
        unsigned int gpio = irq - IH_GPIO_BASE;
        struct gpio_bank *bank = get_irq_chip_data(irq);
        unsigned int irq_mask = 1 << get_gpio_index(gpio);
+       struct irq_desc *desc = irq_to_desc(irq);
+       u32 trigger = desc->status & IRQ_TYPE_SENSE_MASK;
+
+       if (trigger)
+               _set_gpio_triggering(bank, get_gpio_index(gpio), trigger);
 
        /* For level-triggered GPIOs, the clearing must be done after
         * the HW source is cleared, thus after the handler has run */
@@ -1350,9 +1401,49 @@ static int gpio_input(struct gpio_chip *chip, unsigned offset)
        return 0;
 }
 
+static int gpio_is_input(struct gpio_bank *bank, int mask)
+{
+       void __iomem *reg = bank->base;
+
+       switch (bank->method) {
+       case METHOD_MPUIO:
+               reg += OMAP_MPUIO_IO_CNTL;
+               break;
+       case METHOD_GPIO_1510:
+               reg += OMAP1510_GPIO_DIR_CONTROL;
+               break;
+       case METHOD_GPIO_1610:
+               reg += OMAP1610_GPIO_DIRECTION;
+               break;
+       case METHOD_GPIO_730:
+               reg += OMAP730_GPIO_DIR_CONTROL;
+               break;
+       case METHOD_GPIO_850:
+               reg += OMAP850_GPIO_DIR_CONTROL;
+               break;
+       case METHOD_GPIO_24XX:
+               reg += OMAP24XX_GPIO_OE;
+               break;
+       }
+       return __raw_readl(reg) & mask;
+}
+
 static int gpio_get(struct gpio_chip *chip, unsigned offset)
 {
-       return __omap_get_gpio_datain(chip->base + offset);
+       struct gpio_bank *bank;
+       void __iomem *reg;
+       int gpio;
+       u32 mask;
+
+       gpio = chip->base + offset;
+       bank = get_gpio_bank(gpio);
+       reg = bank->base;
+       mask = 1 << get_gpio_index(gpio);
+
+       if (gpio_is_input(bank, mask))
+               return _get_gpio_datain(bank, gpio);
+       else
+               return _get_gpio_dataout(bank, gpio);
 }
 
 static int gpio_output(struct gpio_chip *chip, unsigned offset, int value)
@@ -1585,6 +1676,7 @@ static int __init _omap_gpio_init(void)
                        __raw_writel(0x00000000, bank->base + OMAP24XX_GPIO_IRQENABLE1);
                        __raw_writel(0xffffffff, bank->base + OMAP24XX_GPIO_IRQSTATUS1);
                        __raw_writew(0x0015, bank->base + OMAP24XX_GPIO_SYSCONFIG);
+                       __raw_writel(0x00000000, bank->base + OMAP24XX_GPIO_DEBOUNCE_EN);
 
                        /* Initialize interface clock ungated, module enabled */
                        __raw_writel(0, bank->base + OMAP24XX_GPIO_CTRL);
@@ -1885,34 +1977,6 @@ arch_initcall(omap_gpio_sysinit);
 #include <linux/debugfs.h>
 #include <linux/seq_file.h>
 
-static int gpio_is_input(struct gpio_bank *bank, int mask)
-{
-       void __iomem *reg = bank->base;
-
-       switch (bank->method) {
-       case METHOD_MPUIO:
-               reg += OMAP_MPUIO_IO_CNTL;
-               break;
-       case METHOD_GPIO_1510:
-               reg += OMAP1510_GPIO_DIR_CONTROL;
-               break;
-       case METHOD_GPIO_1610:
-               reg += OMAP1610_GPIO_DIRECTION;
-               break;
-       case METHOD_GPIO_730:
-               reg += OMAP730_GPIO_DIR_CONTROL;
-               break;
-       case METHOD_GPIO_850:
-               reg += OMAP850_GPIO_DIR_CONTROL;
-               break;
-       case METHOD_GPIO_24XX:
-               reg += OMAP24XX_GPIO_OE;
-               break;
-       }
-       return __raw_readl(reg) & mask;
-}
-
-
 static int dbg_gpio_show(struct seq_file *s, void *unused)
 {
        unsigned        i, j, gpio;