From b8dfcdb7d3e3442ba9f5a593ecaac7d8bc5fa921 Mon Sep 17 00:00:00 2001 From: Piotr Wilczek Date: Fri, 7 Mar 2014 14:59:38 +0100 Subject: exynos4:pinmux:fdt: decode peripheral id This patch adds api to decode peripheral id based on interrupt number. Signed-off-by: Piotr Wilczek Signed-off-by: Kyungmin Park Signed-off-by: Minkyu Kang --- arch/arm/cpu/armv7/exynos/pinmux.c | 17 +++++++++++++++++ 1 file changed, 17 insertions(+) (limited to 'arch/arm') 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; } -- cgit v1.1