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| author | Thomas Gleixner <tglx@linutronix.de> | 2017-10-12 11:02:50 +0200 |
|---|---|---|
| committer | Thomas Gleixner <tglx@linutronix.de> | 2017-10-12 11:02:50 +0200 |
| commit | 331b57d14829c49d75076779cdc54d7e4537bbf0 (patch) | |
| tree | 79a70eadb04ed2fd65d3280021ec6ad5266d1cc1 /drivers/clk/samsung/clk-exynos4.c | |
| parent | x86/apic: Fix spelling mistake: "symmectic" -> "symmetric" (diff) | |
| parent | genirq/cpuhotplug: Enforce affinity setting on startup of managed irqs (diff) | |
| download | linux-331b57d14829c49d75076779cdc54d7e4537bbf0.tar.xz linux-331b57d14829c49d75076779cdc54d7e4537bbf0.zip | |
Merge branch 'irq/urgent' into x86/apic
Pick up core changes which affect the vector rework.
Diffstat (limited to 'drivers/clk/samsung/clk-exynos4.c')
| -rw-r--r-- | drivers/clk/samsung/clk-exynos4.c | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/drivers/clk/samsung/clk-exynos4.c b/drivers/clk/samsung/clk-exynos4.c index e40b77583c47..d8d3cb67b402 100644 --- a/drivers/clk/samsung/clk-exynos4.c +++ b/drivers/clk/samsung/clk-exynos4.c @@ -294,6 +294,18 @@ static const struct samsung_clk_reg_dump src_mask_suspend_e4210[] = { #define PLL_ENABLED (1 << 31) #define PLL_LOCKED (1 << 29) +static void exynos4_clk_enable_pll(u32 reg) +{ + u32 pll_con = readl(reg_base + reg); + pll_con |= PLL_ENABLED; + writel(pll_con, reg_base + reg); + + while (!(pll_con & PLL_LOCKED)) { + cpu_relax(); + pll_con = readl(reg_base + reg); + } +} + static void exynos4_clk_wait_for_pll(u32 reg) { u32 pll_con; @@ -315,6 +327,9 @@ static int exynos4_clk_suspend(void) samsung_clk_save(reg_base, exynos4_save_pll, ARRAY_SIZE(exynos4_clk_pll_regs)); + exynos4_clk_enable_pll(EPLL_CON0); + exynos4_clk_enable_pll(VPLL_CON0); + if (exynos4_soc == EXYNOS4210) { samsung_clk_save(reg_base, exynos4_save_soc, ARRAY_SIZE(exynos4210_clk_save)); |