]> git.karo-electronics.de Git - linux-beck.git/commit
ARM: EXYNOS: Fix CPU idle clock down after CPU off
authorKrzysztof Kozlowski <k.kozlowski@samsung.com>
Sat, 13 Sep 2014 17:49:32 +0000 (02:49 +0900)
committerKukjin Kim <kgene.kim@samsung.com>
Mon, 20 Oct 2014 15:06:22 +0000 (00:06 +0900)
commit13cfa6c4f7facfc690ba9e99ec382c151fddaced
tree62ca869133b937a458d1c24634c0e75a308f2212
parent27b9ee852cce3baec47af0b88a62cea62a5dd84d
ARM: EXYNOS: Fix CPU idle clock down after CPU off

On Exynos4 USE_DELAYED_RESET_ASSERTION must be set in
ARM_COREx_OPTION register during CPU power down. This is the proper way
of powering down CPU on Exynos4.

Additionally on Exynos4212 without this the CPU clock down feature won't
work after powering down some CPU and the online CPUs will work at full
frequency chosen by CPUfreq governor.

Signed-off-by: Krzysztof Kozlowski <k.kozlowski@samsung.com>
Reviewed-by: Tomasz Figa <t.figa@samsung.com>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
arch/arm/mach-exynos/platsmp.c
arch/arm/mach-exynos/regs-pmu.h