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

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>

1 files changed, 11 insertions, 0 deletions

diff --git a/drivers/pinctrl/pinctrl-exynos.c b/drivers/pinctrl/pinctrl-exynos.c
index 4bf2fc40aca8..73a0aa27cd56 100644
--- a/drivers/pinctrl/pinctrl-exynos.c
+++ b/drivers/pinctrl/pinctrl-exynos.c
@@ -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;
 }