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@samsung.com Acked-by: Kyungmin Park kyungmin.park@samsung.com --- arch/arm/mach-exynos/exynos.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-)
diff --git a/arch/arm/mach-exynos/exynos.c b/arch/arm/mach-exynos/exynos.c index 6a24e11..15cf86d 100644 --- a/arch/arm/mach-exynos/exynos.c +++ b/arch/arm/mach-exynos/exynos.c @@ -317,7 +317,9 @@ static void __init exynos_dt_machine_init(void) exynos_sysram_init();
if (of_machine_is_compatible("samsung,exynos4210") || - of_machine_is_compatible("samsung,exynos5250")) + of_machine_is_compatible("samsung,exynos4212") || + of_machine_is_compatible("samsung,exynos4412") || + of_machine_is_compatible("samsung,exynos5250")) platform_device_register(&exynos_cpuidle);
platform_device_register_simple("exynos-cpufreq", -1, NULL, 0);