shinys000114/linux
1
0
Fork 0
mirror of https://github.com/hardkernel/linux.git synced 2026-06-06 19:08:57 +09:00
Code Issues Packages Projects Releases Wiki Activity

clk: samsung: exynos5420: Preserve CPU clocks configuration during suspend/resume

Browse Source 
commit e21be0d1d7 upstream.

Save and restore top PLL related configuration registers for big (APLL)
and LITTLE (KPLL) cores during suspend/resume cycle. So far, CPU clocks
were reset to default values after suspend/resume cycle and performance
after system resume was affected when performance governor has been selected.

Fixes: 773424326b ("clk: samsung: exynos5420: add more registers to restore list")
Signed-off-by: Marian Mihailescu <mihailescu2m@gmail.com>
Signed-off-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Marian Mihailescu
2019-10-29 11:20:25 +10:30
committed by Greg Kroah-Hartman
parent 66998c4e95
commit 0d39e3f0eb
1 changed files with 2 additions and 0 deletions
Download Patch File Download Diff File Expand all files Collapse all files

2
drivers/clk/samsung/clk-exynos5420.c
View File

@@ -170,6 +170,8 @@ static const unsigned long exynos5x_clk_regs[] __initconst = {
GATE_BUS_CPU,
GATE_SCLK_CPU,
CLKOUT_CMU_CPU,
APLL_CON0,
KPLL_CON0,
CPLL_CON0,
DPLL_CON0,
EPLL_CON0,