pinctrl: exynos: Handle only unmasked wakeup interrupts
A bit in EINTxx_PEND register is set regardless of interrupt mask, which
causes spurious interrupts. To avoid them, the read value of pending
register must be masked with current interrupt mask manually.
Signed-off-by: Tomasz Figa <t.figa@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
diff --git a/drivers/pinctrl/pinctrl-exynos.c b/drivers/pinctrl/pinctrl-exynos.c
index 46cd637..5648971 100644
--- a/drivers/pinctrl/pinctrl-exynos.c
+++ b/drivers/pinctrl/pinctrl-exynos.c
@@ -395,12 +395,15 @@
struct exynos_weint_data *eintd = irq_get_handler_data(irq);
struct samsung_pinctrl_drv_data *d = eintd->domain->host_data;
unsigned long pend;
+ unsigned long mask;
chained_irq_enter(chip, desc);
pend = readl(d->virt_base + d->ctrl->weint_pend + 0x8);
- exynos_irq_demux_eint(16, pend, eintd->domain);
+ mask = readl(d->virt_base + d->ctrl->weint_mask + 0x8);
+ exynos_irq_demux_eint(16, pend & ~mask, eintd->domain);
pend = readl(d->virt_base + d->ctrl->weint_pend + 0xC);
- exynos_irq_demux_eint(24, pend, eintd->domain);
+ mask = readl(d->virt_base + d->ctrl->weint_mask + 0xC);
+ exynos_irq_demux_eint(24, pend & ~mask, eintd->domain);
chained_irq_exit(chip, desc);
}