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pinctrl: exynos: Set pin function to EINT in irq_set_type of wake-up EINT

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Pins used as wake-up interrupts need to be configured as EINTs. This
patch adds the required configuration code to exynos_wkup_irq_set_type,
to set the pin as EINT when its interrupt trigger type is configured.

Signed-off-by: Tomasz Figa <t.figa@samsung.com>
Reviewed-by: Kyungmin Park <kyungmin.park@samsung.com>
Acked-by: Thomas Abraham <thomas.abraham@linaro.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
This commit is contained in:
Tomasz Figa 2012-10-11 10:11:19 +02:00 committed by Linus Walleij
parent a04b07c0fc
commit 22b9ba033b
1 changed files with 11 additions and 0 deletions
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11
drivers/pinctrl/pinctrl-exynos.c
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@ -257,6 +257,7 @@ static int exynos_wkup_irq_set_type(struct irq_data *irqd, unsigned int type)
unsigned long reg_con = d->ctrl->weint_con + bank->eint_offset;
unsigned long shift = EXYNOS_EINT_CON_LEN * pin;
unsigned long con, trig_type;
unsigned int mask;
switch (type) {
case IRQ_TYPE_EDGE_RISING:
@ -288,6 +289,16 @@ static int exynos_wkup_irq_set_type(struct irq_data *irqd, unsigned int type)
con &= ~(EXYNOS_EINT_CON_MASK << shift);
con |= trig_type << shift;
writel(con, d->virt_base + reg_con);
reg_con = bank->pctl_offset;
shift = pin * bank->func_width;
mask = (1 << bank->func_width) - 1;
con = readl(d->virt_base + reg_con);
con &= ~(mask << shift);
con |= EXYNOS_EINT_FUNC << shift;
writel(con, d->virt_base + reg_con);
return 0;
}