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

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: 7734243 ("clk: samsung: exynos5420: add more registers to restore list")
Signed-off-by: Marian Mihailescu <[email protected]>
Signed-off-by: Sylwester Nawrocki <[email protected]>

Author: mihailescu2m

drivers/clk/samsung/clk-exynos5420.c

@@ -165,6 +165,8 @@ 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,