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path: root/drivers/gpio/gpio-omap.c
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Diffstat (limited to 'drivers/gpio/gpio-omap.c')
-rw-r--r--drivers/gpio/gpio-omap.c28
1 files changed, 15 insertions, 13 deletions
diff --git a/drivers/gpio/gpio-omap.c b/drivers/gpio/gpio-omap.c
index 6c51191da567..35bebde23e83 100644
--- a/drivers/gpio/gpio-omap.c
+++ b/drivers/gpio/gpio-omap.c
@@ -432,7 +432,6 @@ static inline void set_24xx_gpio_triggering(struct gpio_bank *bank, int gpio,
{
void __iomem *base = bank->base;
u32 gpio_bit = 1 << gpio;
- u32 val;
if (cpu_is_omap44xx()) {
MOD_REG_BIT(OMAP4_GPIO_LEVELDETECT0, gpio_bit,
@@ -455,15 +454,8 @@ static inline void set_24xx_gpio_triggering(struct gpio_bank *bank, int gpio,
}
if (likely(!(bank->non_wakeup_gpios & gpio_bit))) {
if (cpu_is_omap44xx()) {
- if (trigger != 0)
- __raw_writel(1 << gpio, bank->base+
- OMAP4_GPIO_IRQWAKEN0);
- else {
- val = __raw_readl(bank->base +
- OMAP4_GPIO_IRQWAKEN0);
- __raw_writel(val & (~(1 << gpio)), bank->base +
- OMAP4_GPIO_IRQWAKEN0);
- }
+ MOD_REG_BIT(OMAP4_GPIO_IRQWAKEN0, gpio_bit,
+ trigger != 0);
} else {
/*
* GPIO wakeup request can only be generated on edge
@@ -477,8 +469,9 @@ static inline void set_24xx_gpio_triggering(struct gpio_bank *bank, int gpio,
+ OMAP24XX_GPIO_CLEARWKUENA);
}
}
- /* This part needs to be executed always for OMAP34xx */
- if (cpu_is_omap34xx() || (bank->non_wakeup_gpios & gpio_bit)) {
+ /* This part needs to be executed always for OMAP{34xx, 44xx} */
+ if (cpu_is_omap34xx() || cpu_is_omap44xx() ||
+ (bank->non_wakeup_gpios & gpio_bit)) {
/*
* Log the edge gpio and manually trigger the IRQ
* after resume if the input level changes
@@ -1134,8 +1127,11 @@ static void gpio_irq_shutdown(struct irq_data *d)
{
unsigned int gpio = d->irq - IH_GPIO_BASE;
struct gpio_bank *bank = irq_data_get_irq_chip_data(d);
+ unsigned long flags;
+ spin_lock_irqsave(&bank->lock, flags);
_reset_gpio(bank, gpio);
+ spin_unlock_irqrestore(&bank->lock, flags);
}
static void gpio_ack_irq(struct irq_data *d)
@@ -1150,9 +1146,12 @@ static void gpio_mask_irq(struct irq_data *d)
{
unsigned int gpio = d->irq - IH_GPIO_BASE;
struct gpio_bank *bank = irq_data_get_irq_chip_data(d);
+ unsigned long flags;
+ spin_lock_irqsave(&bank->lock, flags);
_set_gpio_irqenable(bank, gpio, 0);
_set_gpio_triggering(bank, get_gpio_index(gpio), IRQ_TYPE_NONE);
+ spin_unlock_irqrestore(&bank->lock, flags);
}
static void gpio_unmask_irq(struct irq_data *d)
@@ -1161,7 +1160,9 @@ static void gpio_unmask_irq(struct irq_data *d)
struct gpio_bank *bank = irq_data_get_irq_chip_data(d);
unsigned int irq_mask = 1 << get_gpio_index(gpio);
u32 trigger = irqd_get_trigger_type(d);
+ unsigned long flags;
+ spin_lock_irqsave(&bank->lock, flags);
if (trigger)
_set_gpio_triggering(bank, get_gpio_index(gpio), trigger);
@@ -1173,6 +1174,7 @@ static void gpio_unmask_irq(struct irq_data *d)
}
_set_gpio_irqenable(bank, gpio, 1);
+ spin_unlock_irqrestore(&bank->lock, flags);
}
static struct irq_chip gpio_irq_chip = {
@@ -1524,7 +1526,7 @@ static void omap_gpio_mod_init(struct gpio_bank *bank, int id)
}
}
-static void __init omap_gpio_chip_init(struct gpio_bank *bank)
+static void __devinit omap_gpio_chip_init(struct gpio_bank *bank)
{
int j;
static int gpio;