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authorTomasz Figa <t.figa@samsung.com>2013-05-17 18:24:27 +0200
committerLinus Walleij <linus.walleij@linaro.org>2013-05-27 15:37:08 +0200
commitad350cd9d5411353397843c8f410a6e7e84a71f9 (patch)
treea92df94dd7659ec005f9cca5c75265b0f29cbb69 /drivers/pinctrl
parentd9f998639f539613bb25cbbca380c81c892d586c (diff)
downloadlinux-ad350cd9d5411353397843c8f410a6e7e84a71f9.tar.bz2
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>
Diffstat (limited to 'drivers/pinctrl')
-rw-r--r--drivers/pinctrl/pinctrl-exynos.c23
1 files changed, 23 insertions, 0 deletions
diff --git a/drivers/pinctrl/pinctrl-exynos.c b/drivers/pinctrl/pinctrl-exynos.c
index ac742817ebce..4f868e59227e 100644
--- a/drivers/pinctrl/pinctrl-exynos.c
+++ b/drivers/pinctrl/pinctrl-exynos.c
@@ -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 */