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exynos4:pinmux:fdt: decode peripheral id

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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>
This commit is contained in:
Piotr Wilczek 2014-03-07 14:59:38 +01:00 • committed by Minkyu Kang
parent 8ee950dd27
commit b8dfcdb7d3
1 changed files with 17 additions and 0 deletions
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17
arch/arm/cpu/armv7/exynos/pinmux.c
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@ -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;
}