Minki/linux
1
0
Fork 1
mirror of https://github.com/torvalds/linux.git synced 2024-12-23 19:31:53 +00:00
Code Issues Packages Projects Releases Wiki Activity

ARM: EXYNOS: Skip C1 cpuidle state for exynos5440

Browse Source 
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>
This commit is contained in:
Amit Daniel Kachhap 2013-08-28 00:48:24 +09:00 committed by Kukjin Kim
parent 08e594fc12
commit 1e9fec0e40
1 changed files with 3 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

3
arch/arm/mach-exynos/cpuidle.c
View File

@ -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");