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author | Marek Szyprowski <m.szyprowski@samsung.com> | 2018-09-06 17:55:29 +0200 |
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committer | Sylwester Nawrocki <snawrocki@kernel.org> | 2018-10-05 13:36:30 +0200 |
commit | c41b0ff2f627c654475a287a21b2f455430f0923 (patch) | |
tree | 173a65ba9e93ee7695fa8c28c46292d0451f0c6c /drivers/clk/samsung | |
parent | 3ac0b61578a6e9edcedeb6b4d7c53c6f3c7ae916 (diff) | |
download | linux-c41b0ff2f627c654475a287a21b2f455430f0923.tar.bz2 |
clk: samsung: exynos5250: Use generic helper for handling suspend/resume
Replace common suspend/resume handling code by generic helper.
Almost no functional change, the only difference is in handling
of hypothetical memory allocation failure on boot.
Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
Acked-by: Chanwoo Choi <cw00.choi@samsung.com>
Reviewed-by: Krzysztof Kozlowski <krzk@kernel.org>
Signed-off-by: Sylwester Nawrocki <snawrocki@kernel.org>
Diffstat (limited to 'drivers/clk/samsung')
-rw-r--r-- | drivers/clk/samsung/clk-exynos5250.c | 42 |
1 files changed, 2 insertions, 40 deletions
diff --git a/drivers/clk/samsung/clk-exynos5250.c b/drivers/clk/samsung/clk-exynos5250.c index 347fd80c351b..f14139bcb0c1 100644 --- a/drivers/clk/samsung/clk-exynos5250.c +++ b/drivers/clk/samsung/clk-exynos5250.c @@ -14,7 +14,6 @@ #include <linux/clk-provider.h> #include <linux/of.h> #include <linux/of_address.h> -#include <linux/syscore_ops.h> #include "clk.h" #include "clk-cpu.h" @@ -111,9 +110,6 @@ enum exynos5250_plls { static void __iomem *reg_base; -#ifdef CONFIG_PM_SLEEP -static struct samsung_clk_reg_dump *exynos5250_save; - /* * list of controller registers to be saved and restored during a * suspend/resume cycle. @@ -172,41 +168,6 @@ static const unsigned long exynos5250_clk_regs[] __initconst = { GATE_IP_ISP1, }; -static int exynos5250_clk_suspend(void) -{ - samsung_clk_save(reg_base, exynos5250_save, - ARRAY_SIZE(exynos5250_clk_regs)); - - return 0; -} - -static void exynos5250_clk_resume(void) -{ - samsung_clk_restore(reg_base, exynos5250_save, - ARRAY_SIZE(exynos5250_clk_regs)); -} - -static struct syscore_ops exynos5250_clk_syscore_ops = { - .suspend = exynos5250_clk_suspend, - .resume = exynos5250_clk_resume, -}; - -static void __init exynos5250_clk_sleep_init(void) -{ - exynos5250_save = samsung_clk_alloc_reg_dump(exynos5250_clk_regs, - ARRAY_SIZE(exynos5250_clk_regs)); - if (!exynos5250_save) { - pr_warn("%s: failed to allocate sleep save data, no sleep support!\n", - __func__); - return; - } - - register_syscore_ops(&exynos5250_clk_syscore_ops); -} -#else -static void __init exynos5250_clk_sleep_init(void) {} -#endif - /* list of all parent clock list */ PNAME(mout_apll_p) = { "fin_pll", "fout_apll", }; PNAME(mout_cpu_p) = { "mout_apll", "mout_mpll", }; @@ -882,7 +843,8 @@ static void __init exynos5250_clk_init(struct device_node *np) PWR_CTRL2_CORE2_UP_RATIO | PWR_CTRL2_CORE1_UP_RATIO); __raw_writel(tmp, reg_base + PWR_CTRL2); - exynos5250_clk_sleep_init(); + samsung_clk_sleep_init(reg_base, exynos5250_clk_regs, + ARRAY_SIZE(exynos5250_clk_regs)); exynos5_subcmus_init(ctx, 1, &exynos5250_disp_subcmu); samsung_clk_of_add_provider(np, ctx); |