Suspend/resume handling is already moved for all other Exynos SoCs other than Exynos5420 which is addressed in this patch.
Signed-off-by: Rahul Sharma <[email protected]> --- drivers/clk/samsung/clk-exynos5410.c | 49 ++++++++++++++++++++++++++++++---- 1 file changed, 44 insertions(+), 5 deletions(-) diff --git a/drivers/clk/samsung/clk-exynos5410.c b/drivers/clk/samsung/clk-exynos5410.c index 858b3ff..f94c493 100644 --- a/drivers/clk/samsung/clk-exynos5410.c +++ b/drivers/clk/samsung/clk-exynos5410.c @@ -16,6 +16,7 @@ #include <linux/clk-provider.h> #include <linux/of.h> #include <linux/of_address.h> +#include <linux/syscore_ops.h> #include "clk.h" @@ -60,6 +61,11 @@ enum exynos5410_plls { nr_plls /* number of PLLs */ }; +static void __iomem *reg_base; + +#ifdef CONFIG_PM_SLEEP +static struct samsung_clk_reg_dump *exynos5410_save; + /* * list of controller registers to be saved and restored during a * suspend/resume cycle. @@ -89,6 +95,41 @@ static unsigned long exynos5410_clk_regs[] __initdata = { DIV_KFC0, }; +static int exynos5410_clk_suspend(void) +{ + samsung_clk_save(reg_base, exynos5410_save, + ARRAY_SIZE(exynos5410_clk_regs)); + + return 0; +} + +static void exynos5410_clk_resume(void) +{ + samsung_clk_restore(reg_base, exynos5410_save, + ARRAY_SIZE(exynos5410_clk_regs)); +} + +static struct syscore_ops exynos5410_clk_syscore_ops = { + .suspend = exynos5410_clk_suspend, + .resume = exynos5410_clk_resume, +}; + +static void exynos5410_clk_sleep_init(void) +{ + exynos5410_save = samsung_clk_alloc_reg_dump(exynos5410_clk_regs, + ARRAY_SIZE(exynos5410_clk_regs)); + if (!exynos5410_save) { + pr_warn("%s: failed to allocate sleep save data, no sleep support!\n", + __func__); + return; + } + + register_syscore_ops(&exynos5410_clk_syscore_ops); +} +#else +static void exynos5410_clk_sleep_init(void) {} +#endif + /* list of all parent clocks */ PNAME(apll_p) = { "fin_pll", "fout_apll", }; PNAME(bpll_p) = { "fin_pll", "fout_bpll", }; @@ -214,15 +255,11 @@ static struct samsung_pll_clock exynos5410_plls[nr_plls] __initdata = { /* register exynos5410 clocks */ static void __init exynos5410_clk_init(struct device_node *np) { - void __iomem *reg_base; - reg_base = of_iomap(np, 0); if (!reg_base) panic("%s: failed to map registers\n", __func__); - samsung_clk_init(np, reg_base, CLK_NR_CLKS, - exynos5410_clk_regs, ARRAY_SIZE(exynos5410_clk_regs), - NULL, 0); + samsung_clk_init(np, reg_base, CLK_NR_CLKS); samsung_clk_register_pll(exynos5410_plls, ARRAY_SIZE(exynos5410_plls), reg_base); @@ -234,6 +271,8 @@ static void __init exynos5410_clk_init(struct device_node *np) samsung_clk_register_gate(exynos5410_gate_clks, ARRAY_SIZE(exynos5410_gate_clks)); + exynos5410_clk_sleep_init(); + pr_debug("Exynos5410: clock setup completed.\n"); } CLK_OF_DECLARE(exynos5410_clk, "samsung,exynos5410-clock", exynos5410_clk_init); -- 1.7.9.5 -- To unsubscribe from this list: send the line "unsubscribe devicetree" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html
