[RFC 1/6] pinctrl: exynos: Parse wakeup-eint parameters from DT

[Tomasz Figa]

This patch converts the pinctrl-exynos driver to parse wakeup interrupt
count and register offsets from device tree. It reduces the amount of
static platform-specific data and facilitates adding further SoC
variants to pinctrl-samsung driver.

Signed-off-by: Tomasz Figa <t.figa at samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park at samsung.com>
---
 drivers/pinctrl/pinctrl-exynos.c | 22 ++++++++++++++++++++++
 1 file changed, 22 insertions(+)

diff --git a/drivers/pinctrl/pinctrl-exynos.c b/drivers/pinctrl/pinctrl-exynos.c
index 0d01d19..575378a 100644
--- a/drivers/pinctrl/pinctrl-exynos.c
+++ b/drivers/pinctrl/pinctrl-exynos.c
@@ -435,6 +435,8 @@ static int exynos_eint_wkup_init(struct samsung_pinctrl_drv_data *d)
 	struct device_node *np;
 	struct exynos_weint_data *weint_data;
 	int idx, irq;
+	u32 val;
+	int ret;
 
 	for_each_child_of_node(dev->of_node, np) {
 		if (of_match_node(exynos_wkup_irq_ids, np)) {
@@ -445,6 +447,26 @@ static int exynos_eint_wkup_init(struct samsung_pinctrl_drv_data *d)
 	if (!wkup_np)
 		return -ENODEV;
 
+	ret = of_property_read_u32(wkup_np, "samsung,weint-count", &val);
+	if (ret)
+		return -EINVAL;
+	d->ctrl->nr_wint = val;
+
+	ret = of_property_read_u32(wkup_np, "samsung,weint-con", &val);
+	if (ret)
+		return -EINVAL;
+	d->ctrl->weint_con = val;
+
+	ret = of_property_read_u32(wkup_np, "samsung,weint-mask", &val);
+	if (ret)
+		return -EINVAL;
+	d->ctrl->weint_mask = val;
+
+	ret = of_property_read_u32(wkup_np, "samsung,weint-pend", &val);
+	if (ret)
+		return -EINVAL;
+	d->ctrl->weint_pend = val;
+
 	d->wkup_irqd = irq_domain_add_linear(wkup_np, d->ctrl->nr_wint,
 				&exynos_wkup_irqd_ops, d);
 	if (!d->gpio_irqd) {
-- 
1.7.12