This patch adds api to decode peripheral id based on interrupt number.
Signed-off-by: Piotr Wilczek <[email protected]>
Signed-off-by: Kyungmin Park <[email protected]>
CC: Minkyu Kang <[email protected]>
---
Changes for v5:
- none
Changes for v4:
- none
Changes for v3:
- none
Changes for v2:
- removed incorrectly implemented check for invalid peripheral id
- removed unnecesary white space
arch/arm/cpu/armv7/exynos/pinmux.c | 17 +++++++++++++++++
1 file changed, 17 insertions(+)
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 @@ int exynos_pinmux_config(int peripheral, int flags)
}
#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 @@ int pinmux_decode_periph_id(const void *blob, int node)
{
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;
}
--
1.8.3.2
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