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pinctrl: exynos: Handle only unmasked wakeup interrupts

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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>
This commit is contained in:
Tomasz Figa 2012-09-21 07:33:55 +09:00 committed by Kukjin Kim
parent 3da23f27a0
commit de59049bd6
1 changed files with 5 additions and 2 deletions
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7
drivers/pinctrl/pinctrl-exynos.c
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@ -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 exynos_weint_data *eintd = irq_get_handler_data(irq);
struct samsung_pinctrl_drv_data *d = eintd->domain->host_data; struct samsung_pinctrl_drv_data *d = eintd->domain->host_data;
unsigned long pend; unsigned long pend;
unsigned long mask;
chained_irq_enter(chip, desc); chained_irq_enter(chip, desc);
pend = readl(d->virt_base + d->ctrl->weint_pend + 0x8); 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); 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); chained_irq_exit(chip, desc);
} }