[PATCH v3 4/4] ARM: EXYNOS: cpuidle: allow driver usage on Exynos4x12 SoCs

[Bartlomiej Zolnierkiewicz]

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.zolnierkie at samsung.com>
Acked-by: Kyungmin Park <kyungmin.park at 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