exynos4:pinmux:fdt: decode peripheral id
This patch adds api to decode peripheral id based on interrupt number.
Signed-off-by: Piotr Wilczek <p.wilczek@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: Minkyu Kang <mk7.kang@samsung.com>
diff --git a/arch/arm/cpu/armv7/exynos/pinmux.c b/arch/arm/cpu/armv7/exynos/pinmux.c
index 645c497..8d6e5c1 100644
--- a/arch/arm/cpu/armv7/exynos/pinmux.c
+++ b/arch/arm/cpu/armv7/exynos/pinmux.c
@@ -741,6 +741,21 @@
}
#ifdef CONFIG_OF_CONTROL
+static int exynos4_pinmux_decode_periph_id(const void *blob, int node)
+{
+ int err;
+ u32 cell[3];
+
+ err = fdtdec_get_int_array(blob, node, "interrupts", cell,
+ ARRAY_SIZE(cell));
+ if (err) {
+ debug(" invalid peripheral id\n");
+ return PERIPH_ID_NONE;
+ }
+
+ return cell[1];
+}
+
static int exynos5_pinmux_decode_periph_id(const void *blob, int node)
{
int err;
@@ -758,6 +773,8 @@
{
if (cpu_is_exynos5())
return exynos5_pinmux_decode_periph_id(blob, node);
+ else if (cpu_is_exynos4())
+ return exynos4_pinmux_decode_periph_id(blob, node);
else
return PERIPH_ID_NONE;
}