From: Charulatha V <[email protected]>

Getting rid of ifdefs within the function by adding register offset intctrl
and associating OMAPXXXX_GPIO_INT_CONTROL in respective SoC specific files.

Signed-off-by: Charulatha V <[email protected]>
Signed-off-by: Tarun Kanti DebBarma <[email protected]>
---
 arch/arm/mach-omap1/gpio15xx.c         |   14 ++++
 arch/arm/mach-omap1/gpio16xx.c         |   14 ++++
 arch/arm/mach-omap1/gpio7xx.c          |   14 ++++
 arch/arm/mach-omap2/gpio.c             |    4 +
 arch/arm/plat-omap/include/plat/gpio.h |    3 +
 drivers/gpio/gpio_omap.c               |  125 +++++++-------------------------
 6 files changed, 77 insertions(+), 97 deletions(-)

diff --git a/arch/arm/mach-omap1/gpio15xx.c b/arch/arm/mach-omap1/gpio15xx.c
index b0bd21e..ceee046 100644
--- a/arch/arm/mach-omap1/gpio15xx.c
+++ b/arch/arm/mach-omap1/gpio15xx.c
@@ -46,6 +46,13 @@ static struct omap_gpio_reg_offs omap15xx_mpuio_regs = {
        .wkupstatus     = USHRT_MAX,
        .wkupclear      = USHRT_MAX,
        .wkupset        = USHRT_MAX,
+       .irqctrl        = OMAP_MPUIO_GPIO_INT_EDGE,
+       .edgectrl1      = USHRT_MAX,
+       .edgectrl2      = USHRT_MAX,
+       .leveldetect0   = USHRT_MAX,
+       .leveldetect1   = USHRT_MAX,
+       .risingdetect   = USHRT_MAX,
+       .fallingdetect  = USHRT_MAX,
 };
 
 static struct __initdata omap_gpio_platform_data omap15xx_mpu_gpio_config = {
@@ -91,6 +98,13 @@ static struct omap_gpio_reg_offs omap15xx_gpio_regs = {
        .wkupstatus     = USHRT_MAX,
        .wkupclear      = USHRT_MAX,
        .wkupset        = USHRT_MAX,
+       .irqctrl        = OMAP1510_GPIO_INT_CONTROL,
+       .edgectrl1      = USHRT_MAX,
+       .edgectrl2      = USHRT_MAX,
+       .leveldetect0   = USHRT_MAX,
+       .leveldetect1   = USHRT_MAX,
+       .risingdetect   = USHRT_MAX,
+       .fallingdetect  = USHRT_MAX,
 };
 
 static struct __initdata omap_gpio_platform_data omap15xx_gpio_config = {
diff --git a/arch/arm/mach-omap1/gpio16xx.c b/arch/arm/mach-omap1/gpio16xx.c
index 403437b..b2479c5 100644
--- a/arch/arm/mach-omap1/gpio16xx.c
+++ b/arch/arm/mach-omap1/gpio16xx.c
@@ -49,6 +49,13 @@ static struct omap_gpio_reg_offs omap16xx_mpuio_regs = {
        .wkupstatus     = USHRT_MAX,
        .wkupclear      = USHRT_MAX,
        .wkupset        = USHRT_MAX,
+       .irqctrl        = OMAP_MPUIO_GPIO_INT_EDGE,
+       .edgectrl1      = USHRT_MAX,
+       .edgectrl2      = USHRT_MAX,
+       .leveldetect0   = USHRT_MAX,
+       .leveldetect1   = USHRT_MAX,
+       .risingdetect   = USHRT_MAX,
+       .fallingdetect  = USHRT_MAX,
 };
 
 static struct __initdata omap_gpio_platform_data omap16xx_mpu_gpio_config = {
@@ -97,6 +104,13 @@ static struct omap_gpio_reg_offs omap16xx_gpio_regs = {
        .wkupstatus     = OMAP1610_GPIO_WAKEUPENABLE,
        .wkupclear      = OMAP1610_GPIO_CLEAR_WAKEUPENA,
        .wkupset        = OMAP1610_GPIO_SET_WAKEUPENA,
+       .irqctrl        = USHRT_MAX,
+       .edgectrl1      = OMAP1610_GPIO_EDGE_CTRL1,
+       .edgectrl2      = OMAP1610_GPIO_EDGE_CTRL2,
+       .leveldetect0   = USHRT_MAX,
+       .leveldetect1   = USHRT_MAX,
+       .risingdetect   = USHRT_MAX,
+       .fallingdetect  = USHRT_MAX,
 };
 
 static struct __initdata omap_gpio_platform_data omap16xx_gpio1_config = {
diff --git a/arch/arm/mach-omap1/gpio7xx.c b/arch/arm/mach-omap1/gpio7xx.c
index d5a4aaf..ceac936 100644
--- a/arch/arm/mach-omap1/gpio7xx.c
+++ b/arch/arm/mach-omap1/gpio7xx.c
@@ -51,6 +51,13 @@ static struct omap_gpio_reg_offs omap7xx_mpuio_regs = {
        .wkupstatus     = USHRT_MAX,
        .wkupclear      = USHRT_MAX,
        .wkupset        = USHRT_MAX,
+       .irqctrl        = OMAP_MPUIO_GPIO_INT_EDGE / 2,
+       .edgectrl1      = USHRT_MAX,
+       .edgectrl2      = USHRT_MAX,
+       .leveldetect0   = USHRT_MAX,
+       .leveldetect1   = USHRT_MAX,
+       .risingdetect   = USHRT_MAX,
+       .fallingdetect  = USHRT_MAX,
 };
 
 static struct __initdata omap_gpio_platform_data omap7xx_mpu_gpio_config = {
@@ -96,6 +103,13 @@ static struct omap_gpio_reg_offs omap7xx_gpio_regs = {
        .wkupstatus     = USHRT_MAX,
        .wkupclear      = USHRT_MAX,
        .wkupset        = USHRT_MAX,
+       .irqctrl        = OMAP7XX_GPIO_INT_CONTROL,
+       .edgectrl1      = USHRT_MAX,
+       .edgectrl2      = USHRT_MAX,
+       .leveldetect0   = USHRT_MAX,
+       .leveldetect1   = USHRT_MAX,
+       .risingdetect   = USHRT_MAX,
+       .fallingdetect  = USHRT_MAX,
 };
 
 static struct __initdata omap_gpio_platform_data omap7xx_gpio1_config = {
diff --git a/arch/arm/mach-omap2/gpio.c b/arch/arm/mach-omap2/gpio.c
index fbedbbb..eda1846 100644
--- a/arch/arm/mach-omap2/gpio.c
+++ b/arch/arm/mach-omap2/gpio.c
@@ -92,6 +92,10 @@ static int omap2_gpio_dev_init(struct omap_hwmod *oh, void 
*unused)
                return -ENOMEM;
        }
 
+       pdata->regs->irqctrl = USHRT_MAX;
+       pdata->regs->edgectrl1 = USHRT_MAX;
+       pdata->regs->edgectrl2 = USHRT_MAX;
+
        switch (oh->class->rev) {
        case 0:
        case 1:
diff --git a/arch/arm/plat-omap/include/plat/gpio.h 
b/arch/arm/plat-omap/include/plat/gpio.h
index a341790..f82881c 100644
--- a/arch/arm/plat-omap/include/plat/gpio.h
+++ b/arch/arm/plat-omap/include/plat/gpio.h
@@ -197,6 +197,9 @@ struct omap_gpio_reg_offs {
        u16 wkupstatus;
        u16 wkupclear;
        u16 wkupset;
+       u16 irqctrl;
+       u16 edgectrl1;
+       u16 edgectrl2;
 
        bool irqenable_inv;
 };
diff --git a/drivers/gpio/gpio_omap.c b/drivers/gpio/gpio_omap.c
index 762d73c..ebeb16e 100644
--- a/drivers/gpio/gpio_omap.c
+++ b/drivers/gpio/gpio_omap.c
@@ -202,33 +202,20 @@ static void _set_gpio_debounce(struct gpio_bank *bank, 
unsigned gpio,
        __raw_writel(val, reg);
 }
 
-#ifdef CONFIG_ARCH_OMAP2PLUS
-static inline void set_24xx_gpio_triggering(struct gpio_bank *bank, int gpio,
+static inline void set_gpio_trigger(struct gpio_bank *bank, int gpio,
                                                int trigger)
 {
        void __iomem *base = bank->base;
        u32 gpio_bit = 1 << gpio;
-       u32 val;
 
-       if (cpu_is_omap44xx()) {
-               MOD_REG_BIT(OMAP4_GPIO_LEVELDETECT0, gpio_bit,
+       MOD_REG_BIT(bank->regs->leveldetect0, gpio_bit,
                        trigger & IRQ_TYPE_LEVEL_LOW);
-               MOD_REG_BIT(OMAP4_GPIO_LEVELDETECT1, gpio_bit,
+       MOD_REG_BIT(bank->regs->leveldetect1, gpio_bit,
                        trigger & IRQ_TYPE_LEVEL_HIGH);
-               MOD_REG_BIT(OMAP4_GPIO_RISINGDETECT, gpio_bit,
+       MOD_REG_BIT(bank->regs->risingdetect, gpio_bit,
                        trigger & IRQ_TYPE_EDGE_RISING);
-               MOD_REG_BIT(OMAP4_GPIO_FALLINGDETECT, gpio_bit,
+       MOD_REG_BIT(bank->regs->fallingdetect, gpio_bit,
                        trigger & IRQ_TYPE_EDGE_FALLING);
-       } else {
-               MOD_REG_BIT(OMAP24XX_GPIO_LEVELDETECT0, gpio_bit,
-                       trigger & IRQ_TYPE_LEVEL_LOW);
-               MOD_REG_BIT(OMAP24XX_GPIO_LEVELDETECT1, gpio_bit,
-                       trigger & IRQ_TYPE_LEVEL_HIGH);
-               MOD_REG_BIT(OMAP24XX_GPIO_RISINGDETECT, gpio_bit,
-                       trigger & IRQ_TYPE_EDGE_RISING);
-               MOD_REG_BIT(OMAP24XX_GPIO_FALLINGDETECT, gpio_bit,
-                       trigger & IRQ_TYPE_EDGE_FALLING);
-       }
 
        if (likely(!(bank->non_wakeup_gpios & gpio_bit))) {
                /*
@@ -259,36 +246,16 @@ static inline void set_24xx_gpio_triggering(struct 
gpio_bank *bank, int gpio,
                __raw_readl(bank->base + bank->regs->leveldetect0) |
                __raw_readl(bank->base + bank->regs->leveldetect1);
 }
-#endif
 
-#ifdef CONFIG_ARCH_OMAP1
 /*
  * This only applies to chips that can't do both rising and falling edge
  * detection at once.  For all other chips, this function is a noop.
  */
 static void _toggle_gpio_edge_triggering(struct gpio_bank *bank, int gpio)
 {
-       void __iomem *reg = bank->base;
+       void __iomem *reg = bank->base + bank->regs->irqctrl;
        u32 l = 0;
 
-       switch (bank->method) {
-       case METHOD_MPUIO:
-               reg += OMAP_MPUIO_GPIO_INT_EDGE / bank->stride;
-               break;
-#ifdef CONFIG_ARCH_OMAP15XX
-       case METHOD_GPIO_1510:
-               reg += OMAP1510_GPIO_INT_CONTROL;
-               break;
-#endif
-#if defined(CONFIG_ARCH_OMAP730) || defined(CONFIG_ARCH_OMAP850)
-       case METHOD_GPIO_7XX:
-               reg += OMAP7XX_GPIO_INT_CONTROL;
-               break;
-#endif
-       default:
-               return;
-       }
-
        l = __raw_readl(reg);
        if ((l >> gpio) & 1)
                l &= ~(1 << gpio);
@@ -297,31 +264,18 @@ static void _toggle_gpio_edge_triggering(struct gpio_bank 
*bank, int gpio)
 
        __raw_writel(l, reg);
 }
-#endif
 
 static int _set_gpio_triggering(struct gpio_bank *bank, int gpio, int trigger)
 {
        void __iomem *reg = bank->base;
        u32 l = 0;
 
-       switch (bank->method) {
-#ifdef CONFIG_ARCH_OMAP1
-       case METHOD_MPUIO:
-               reg += OMAP_MPUIO_GPIO_INT_EDGE / bank->stride;
-               l = __raw_readl(reg);
-               if ((trigger & IRQ_TYPE_SENSE_MASK) == IRQ_TYPE_EDGE_BOTH)
-                       bank->toggle_mask |= 1 << gpio;
-               if (trigger & IRQ_TYPE_EDGE_RISING)
-                       l |= 1 << gpio;
-               else if (trigger & IRQ_TYPE_EDGE_FALLING)
-                       l &= ~(1 << gpio);
-               else
-                       goto bad;
-               break;
-#endif
-#ifdef CONFIG_ARCH_OMAP15XX
-       case METHOD_GPIO_1510:
-               reg += OMAP1510_GPIO_INT_CONTROL;
+       if ((bank->regs->leveldetect0 != USHRT_MAX) &&
+                       (bank->regs->wkupstatus != USHRT_MAX)) {
+               set_gpio_trigger(bank, gpio, trigger);
+       } else if (bank->regs->irqctrl != USHRT_MAX) {
+               reg += bank->regs->irqctrl;
+
                l = __raw_readl(reg);
                if ((trigger & IRQ_TYPE_SENSE_MASK) == IRQ_TYPE_EDGE_BOTH)
                        bank->toggle_mask |= 1 << gpio;
@@ -330,15 +284,16 @@ static int _set_gpio_triggering(struct gpio_bank *bank, 
int gpio, int trigger)
                else if (trigger & IRQ_TYPE_EDGE_FALLING)
                        l &= ~(1 << gpio);
                else
-                       goto bad;
-               break;
-#endif
-#ifdef CONFIG_ARCH_OMAP16XX
-       case METHOD_GPIO_1610:
+                       return -EINVAL;
+
+               __raw_writel(l, reg);
+
+       } else if (bank->regs->edgectrl1 != USHRT_MAX) {
                if (gpio & 0x08)
-                       reg += OMAP1610_GPIO_EDGE_CTRL2;
+                       reg += bank->regs->edgectrl2;
                else
-                       reg += OMAP1610_GPIO_EDGE_CTRL1;
+                       reg += bank->regs->edgectrl1;
+
                gpio &= 0x07;
                l = __raw_readl(reg);
                l &= ~(3 << (gpio << 1));
@@ -346,40 +301,17 @@ static int _set_gpio_triggering(struct gpio_bank *bank, 
int gpio, int trigger)
                        l |= 2 << (gpio << 1);
                if (trigger & IRQ_TYPE_EDGE_FALLING)
                        l |= 1 << (gpio << 1);
+
                if (trigger)
                        /* Enable wake-up during idle for dynamic tick */
-                       __raw_writel(1 << gpio, bank->base + 
OMAP1610_GPIO_SET_WAKEUPENA);
-               else
-                       __raw_writel(1 << gpio, bank->base + 
OMAP1610_GPIO_CLEAR_WAKEUPENA);
-               break;
-#endif
-#if defined(CONFIG_ARCH_OMAP730) || defined(CONFIG_ARCH_OMAP850)
-       case METHOD_GPIO_7XX:
-               reg += OMAP7XX_GPIO_INT_CONTROL;
-               l = __raw_readl(reg);
-               if ((trigger & IRQ_TYPE_SENSE_MASK) == IRQ_TYPE_EDGE_BOTH)
-                       bank->toggle_mask |= 1 << gpio;
-               if (trigger & IRQ_TYPE_EDGE_RISING)
-                       l |= 1 << gpio;
-               else if (trigger & IRQ_TYPE_EDGE_FALLING)
-                       l &= ~(1 << gpio);
+                       __raw_writel(1 << gpio, bank->wake_set);
                else
-                       goto bad;
-               break;
-#endif
-#ifdef CONFIG_ARCH_OMAP2PLUS
-       case METHOD_GPIO_24XX:
-       case METHOD_GPIO_44XX:
-               set_24xx_gpio_triggering(bank, gpio, trigger);
-               return 0;
-#endif
-       default:
-               goto bad;
+                       __raw_writel(1 << gpio, bank->wake_clear);
+
+               __raw_writel(l, reg);
        }
-       __raw_writel(l, reg);
+
        return 0;
-bad:
-       return -EINVAL;
 }
 
 static int gpio_irq_type(struct irq_data *d, unsigned type)
@@ -678,7 +610,6 @@ static void gpio_irq_handler(unsigned int irq, struct 
irq_desc *desc)
                        if (!(isr & 1))
                                continue;
 
-#ifdef CONFIG_ARCH_OMAP1
                        /*
                         * Some chips can't respond to both rising and falling
                         * at the same time.  If this irq was requested with
@@ -686,9 +617,9 @@ static void gpio_irq_handler(unsigned int irq, struct 
irq_desc *desc)
                         * to respond to the IRQ for the opposite direction.
                         * This will be indicated in the bank toggle_mask.
                         */
-                       if (bank->toggle_mask & (1 << gpio_index))
+                       if ((bank->regs->irqctrl != USHRT_MAX) &&
+                                       (bank->toggle_mask & (1 << gpio_index)))
                                _toggle_gpio_edge_triggering(bank, gpio_index);
-#endif
 
                        generic_handle_irq(gpio_irq);
                }
-- 
1.6.0.4

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