From de59049bd651c1f6b05869a4292f4c8017bdeff9 Mon Sep 17 00:00:00 2001 From: Tomasz Figa Date: Fri, 21 Sep 2012 07:33:55 +0900 Subject: [PATCH] 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 Signed-off-by: Kyungmin Park Acked-by: Linus Walleij Signed-off-by: Kukjin Kim --- drivers/pinctrl/pinctrl-exynos.c | 7 +++++-- 1 file changed, 5 insertions(+), 2 deletions(-) diff --git a/drivers/pinctrl/pinctrl-exynos.c b/drivers/pinctrl/pinctrl-exynos.c index 46cd637f4804..56489714cd70 100644 --- a/drivers/pinctrl/pinctrl-exynos.c +++ b/drivers/pinctrl/pinctrl-exynos.c @@ -395,12 +395,15 @@ static void exynos_irq_demux_eint16_31(unsigned int irq, struct irq_desc *desc) 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); } -- 2.11.0