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pinctrl: exynos: Add support for set_irq_wake of wake-up EINTs 

This patch adds support of IRQ wake-up ability configuration for
wake-up EINTs on Exynos SoCs.

Signed-off-by: Tomasz Figa <t.figa@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Tested-by: Doug Anderson <dianders@chromium.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
This commit is contained in:
Tomasz Figa 2013-05-17 18:24:27 +02:00 committed by Linus Walleij
parent d9f998639f
commit ad350cd9d5
1 changed files with 23 additions and 0 deletions
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23
drivers/pinctrl/pinctrl-exynos.c
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@ -326,6 +326,28 @@ static int exynos_wkup_irq_set_type(struct irq_data *irqd, unsigned int type)
return 0;
}
static u32 exynos_eint_wake_mask = 0xffffffff;
u32 exynos_get_eint_wake_mask(void)
{
return exynos_eint_wake_mask;
}
static int exynos_wkup_irq_set_wake(struct irq_data *irqd, unsigned int on)
{
struct samsung_pin_bank *bank = irq_data_get_irq_chip_data(irqd);
unsigned long bit = 1UL << (2 * bank->eint_offset + irqd->hwirq);
pr_info("wake %s for irq %d\n", on ? "enabled" : "disabled", irqd->irq);
if (!on)
exynos_eint_wake_mask |= bit;
else
exynos_eint_wake_mask &= ~bit;
return 0;
}
/*
* irq_chip for wakeup interrupts
*/
@ -335,6 +357,7 @@ static struct irq_chip exynos_wkup_irq_chip = {
.irq_mask = exynos_wkup_irq_mask,
.irq_ack = exynos_wkup_irq_ack,
.irq_set_type = exynos_wkup_irq_set_type,
.irq_set_wake = exynos_wkup_irq_set_wake,
};
/* interrupt handler for wakeup interrupts 0..15 */