This patch restores the ability to receive wake-up events from internal
GIC interrupts, e.g. RTC tick or alarm interrupts.
Signed-off-by: Tomasz Figa <t.figa@xxxxxxxxxxx>
Signed-off-by: Kyungmin Park <kyungmin.park@xxxxxxxxxxx>
---
arch/arm/mach-exynos/include/mach/pm-core.h | 1 -
arch/arm/mach-exynos/pm.c | 55 +++++++++++++++++++++++++++++
2 files changed, 55 insertions(+), 1 deletion(-)
diff --git a/arch/arm/mach-exynos/include/mach/pm-core.h b/arch/arm/mach-exynos/include/mach/pm-core.h
index 2b00833..be112ce 100644
--- a/arch/arm/mach-exynos/include/mach/pm-core.h
+++ b/arch/arm/mach-exynos/include/mach/pm-core.h
@@ -66,7 +66,6 @@ static inline void samsung_pm_saved_gpios(void)
/* Compatibility definitions to make plat-samsung/pm.c compile */
#define IRQ_EINT_BIT(x) 1
-#define s3c_irqwake_intallow 0
#define s3c_irqwake_eintallow 0
#endif /* __ASM_ARCH_PM_CORE_H */
diff --git a/arch/arm/mach-exynos/pm.c b/arch/arm/mach-exynos/pm.c
index c679db5..1f24e7f 100644
--- a/arch/arm/mach-exynos/pm.c
+++ b/arch/arm/mach-exynos/pm.c
@@ -212,14 +212,69 @@ static struct subsys_interface exynos_pm_interface = {
.add_dev = exynos_pm_add,
};
+struct exynos_wkup_irq {
+ unsigned int hwirq;
+ u32 mask;
+};
+
+static const struct exynos_wkup_irq exynos4_wkup_irq[] = {
+ { 76, BIT(1) }, /* RTC alarm */
+ { 77, BIT(2) }, /* RTC tick */
+ { /* sentinel */ },
+};
+
+static const struct exynos_wkup_irq exynos5250_wkup_irq[] = {
+ { 75, BIT(1) }, /* RTC alarm */
+ { 76, BIT(2) }, /* RTC tick */
+ { /* sentinel */ },
+};
+
+unsigned long s3c_irqwake_intallow;
+
+int s3c_irq_wake(struct irq_data *data, unsigned int state)
+{
+ const struct exynos_wkup_irq *wkup_irq;
+
+ if (soc_is_exynos5250())
+ wkup_irq = exynos5250_wkup_irq;
+ else
+ wkup_irq = exynos4_wkup_irq;
+
+ while (wkup_irq->mask) {
+ if (wkup_irq->hwirq == data->hwirq) {
+ if (!state)
+ s3c_irqwake_intmask |= wkup_irq->mask;
+ else
+ s3c_irqwake_intmask &= ~wkup_irq->mask;
+ return 0;
+ }
+ ++wkup_irq;
+ }
+
+ return -ENOENT;
+}
+
static __init int exynos_pm_drvinit(void)
{
+ const struct exynos_wkup_irq *wkup_irq;
struct clk *pll_base;
unsigned int tmp;
if (soc_is_exynos5440())
return 0;
+ if (soc_is_exynos5250())
+ wkup_irq = exynos5250_wkup_irq;
+ else
+ wkup_irq = exynos4_wkup_irq;
+
+ while (wkup_irq->mask) {
+ s3c_irqwake_intallow |= wkup_irq->mask;
+ ++wkup_irq;
+ }
+
+ gic_arch_extn.irq_set_wake = s3c_irq_wake;
+
s3c_pm_init();
/* All wakeup disable */
--
1.8.3.2
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