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arm: davinci: Cleanup irq chip code

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Make use of the new functionality which ensures that irq_set_type is
called with the chip masked. Unmask is only done when the interrupt is
not disabled.

Retrieve the trigger type from irq_data in unmask

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
This commit is contained in:
Thomas Gleixner 2011-03-24 12:47:04 +01:00
parent d1735a2ebd
commit 5093aec872
1 changed files with 4 additions and 13 deletions
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17
arch/arm/mach-davinci/gpio.c
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@ -218,7 +218,7 @@ static void gpio_irq_enable(struct irq_data *d)
{
struct davinci_gpio_regs __iomem *g = irq2regs(d->irq);
u32 mask = (u32) irq_data_get_irq_data(d);
unsigned status = irq_desc[d->irq].status;
unsigned status = irqd_get_trigger_type(d);
status &= IRQ_TYPE_EDGE_FALLING | IRQ_TYPE_EDGE_RISING;
if (!status)
@ -238,16 +238,6 @@ static int gpio_irq_type(struct irq_data *d, unsigned trigger)
if (trigger & ~(IRQ_TYPE_EDGE_FALLING | IRQ_TYPE_EDGE_RISING))
return -EINVAL;
irq_desc[d->irq].status &= ~IRQ_TYPE_SENSE_MASK;
irq_desc[d->irq].status |= trigger;
/* don't enable the IRQ if it's currently disabled */
if (irq_desc[d->irq].depth == 0) {
__raw_writel(mask, (trigger & IRQ_TYPE_EDGE_FALLING)
? &g->set_falling : &g->clr_falling);
__raw_writel(mask, (trigger & IRQ_TYPE_EDGE_RISING)
? &g->set_rising : &g->clr_rising);
}
return 0;
}
@ -256,6 +246,7 @@ static struct irq_chip gpio_irqchip = {
.irq_enable = gpio_irq_enable,
.irq_disable = gpio_irq_disable,
.irq_set_type = gpio_irq_type,
.flags = IRQCHIP_SET_TYPE_MASKED,
};
static void
@ -395,7 +386,7 @@ static int __init davinci_gpio_irq_setup(void)
/* AINTC handles mask/unmask; GPIO handles triggering */
irq = bank_irq;
gpio_irqchip_unbanked = *get_irq_desc_chip(irq_to_desc(irq));
gpio_irqchip_unbanked = *irq_get_chip(irq);
gpio_irqchip_unbanked.name = "GPIO-AINTC";
gpio_irqchip_unbanked.irq_set_type = gpio_irq_type_unbanked;
@ -409,7 +400,7 @@ static int __init davinci_gpio_irq_setup(void)
set_irq_chip(irq, &gpio_irqchip_unbanked);
set_irq_data(irq, (void *) __gpio_mask(gpio));
set_irq_chip_data(irq, (__force void *) g);
irq_desc[irq].status |= IRQ_TYPE_EDGE_BOTH;
irq_set_status_flags(irq, IRQ_TYPE_EDGE_BOTH);
}
goto done;