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authorAmit Daniel Kachhap <amit.daniel@samsung.com>2013-08-28 00:48:24 +0900
committerKukjin Kim <kgene.kim@samsung.com>2013-08-28 00:51:21 +0900
commit1e9fec0e40deff9d18e4197b5f5f99f85f5d36a5 (patch)
tree2b44e5fa1bb058b0ae3c575121992b6eb48ef726 /arch/arm/mach-exynos
parent08e594fc120bdbee5b9a319686a84f94abc76492 (diff)
downloadlinux-linaro-stable-1e9fec0e40deff9d18e4197b5f5f99f85f5d36a5.tar.gz
ARM: EXYNOS: Skip C1 cpuidle state for exynos5440
This patch skips the deep C1(AFTR -Arm off top running) state for exynos5440 SoC as this soc does not support this state. The cpu's only allows the basic C0 state. The C1 state is filtered by re-initialising the driver state_count value to 1. Suggested-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com> Signed-off-by: Amit Daniel Kachhap <amit.daniel@samsung.com> Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
Diffstat (limited to 'arch/arm/mach-exynos')
-rw-r--r--arch/arm/mach-exynos/cpuidle.c3
1 files changed, 3 insertions, 0 deletions
diff --git a/arch/arm/mach-exynos/cpuidle.c b/arch/arm/mach-exynos/cpuidle.c
index 17a18ff3d71e..ec61b40ad95e 100644
--- a/arch/arm/mach-exynos/cpuidle.c
+++ b/arch/arm/mach-exynos/cpuidle.c
@@ -199,6 +199,9 @@ static int __init exynos4_init_cpuidle(void)
if (soc_is_exynos5250())
exynos5_core_down_clk();
+ if (soc_is_exynos5440())
+ exynos4_idle_driver.state_count = 1;
+
ret = cpuidle_register_driver(&exynos4_idle_driver);
if (ret) {
printk(KERN_ERR "CPUidle failed to register driver\n");