diff options
| author | Tomasz Figa <t.figa@samsung.com> | 2012-09-21 02:33:55 +0400 |
|---|---|---|
| committer | Kukjin Kim <kgene.kim@samsung.com> | 2012-09-21 02:33:55 +0400 |
| commit | de59049bd651c1f6b05869a4292f4c8017bdeff9 (patch) | |
| tree | 335e692e23d8e00bbf64a0b6f1d78d7f9bd8fca9 /drivers/pinctrl/pinctrl-exynos.c | |
| parent | 3da23f27a0f6a5e44a01813a1c0a662011e5c221 (diff) | |
| download | linux-de59049bd651c1f6b05869a4292f4c8017bdeff9.tar.xz | |
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>
Diffstat (limited to 'drivers/pinctrl/pinctrl-exynos.c')
| -rw-r--r-- | drivers/pinctrl/pinctrl-exynos.c | 7 |
1 files 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); } |