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Commit de59049b authored by Tomasz Figa's avatar Tomasz Figa Committed by Kukjin Kim
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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: default avatarTomasz Figa <t.figa@samsung.com>
Signed-off-by: default avatarKyungmin Park <kyungmin.park@samsung.com>
Acked-by: default avatarLinus Walleij <linus.walleij@linaro.org>
Signed-off-by: default avatarKukjin Kim <kgene.kim@samsung.com>
parent 3da23f27

drivers/pinctrl/pinctrl-exynos.c

+5 −2
Original line number Original line Diff line number Diff line
@@ -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);

}

}