Register cpuidle platform device on Exynos4x12 SoCs allowing EXYNOS
cpuidle driver usage on these SoCs.
AFTR mode reduces power consumption on Trats2 board (Exynos4412 SoC
with secure firmware enabled) by ~12% when EXYNOS cpuidle driver is
enabled (in both cases the default exynos_defconfig config is used
and CPU1-3 are offlined).
Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnier...@samsung.com>
Acked-by: Kyungmin Park <kyungmin.p...@samsung.com>
---
v3:
- new patch
arch/arm/mach-exynos/exynos.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/arch/arm/mach-exynos/exynos.c b/arch/arm/mach-exynos/exynos.c
index 4361abd..23003d9 100644
--- a/arch/arm/mach-exynos/exynos.c
+++ b/arch/arm/mach-exynos/exynos.c
@@ -173,7 +173,8 @@ static struct platform_device exynos_cpuidle = {
void __init exynos_cpuidle_init(void)
{
- if (soc_is_exynos4210() || soc_is_exynos5250())
+ if (soc_is_exynos4210() || soc_is_exynos4212() ||
+ soc_is_exynos4412() || soc_is_exynos5250())
platform_device_register(&exynos_cpuidle);
}
--
1.8.2.3
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