clk: samsung: pll: Use new registration method for PLL45xx (52b06016) · Commits · 戴 / test

drivers/clk/samsung/clk-exynos4.c

+11 −7

Original line number	Diff line number	Diff line
		@@ -104,6 +104,7 @@
		#define DIV_DMC1 0x10504
		#define GATE_IP_DMC 0x10900
		#define APLL_LOCK 0x14000
		#define E4210_MPLL_LOCK 0x14008
		#define APLL_CON0 0x14100
		#define E4210_MPLL_CON0 0x14108
		#define SRC_CPU 0x14200
		@@ -984,6 +985,13 @@ static struct of_device_id ext_clk_match[] __initdata = {
		{},
		};

		static struct samsung_pll_clock exynos4210_plls[] __initdata = {
		[apll] = PLL_A(pll_4508, fout_apll, "fout_apll", "fin_pll", APLL_LOCK,
		APLL_CON0, "fout_apll", NULL),
		[mpll] = PLL_A(pll_4508, fout_mpll, "fout_mpll", "fin_pll",
		E4210_MPLL_LOCK, E4210_MPLL_CON0, "fout_mpll", NULL),
		};

		static struct samsung_pll_clock exynos4x12_plls[nr_plls] __initdata = {
		[apll] = PLL(pll_35xx, fout_apll, "fout_apll", "fin_pll",
		APLL_LOCK, APLL_CON0, NULL),
		@@ -1000,7 +1008,7 @@ static void __init exynos4_clk_init(struct device_node *np,
		enum exynos4_soc exynos4_soc,
		void __iomem *reg_base, unsigned long xom)
		{
		struct clk apll, mpll, epll, vpll;
		struct clk epll, vpll;

		reg_base = of_iomap(np, 0);
		if (!reg_base)
		@@ -1022,17 +1030,13 @@ static void __init exynos4_clk_init(struct device_node *np,
		exynos4_clk_register_finpll(xom);

		if (exynos4_soc == EXYNOS4210) {
		apll = samsung_clk_register_pll45xx("fout_apll", "fin_pll",
		reg_base + APLL_CON0, pll_4508);
		mpll = samsung_clk_register_pll45xx("fout_mpll", "fin_pll",
		reg_base + E4210_MPLL_CON0, pll_4508);
		samsung_clk_register_pll(exynos4210_plls,
		ARRAY_SIZE(exynos4210_plls), reg_base);
		epll = samsung_clk_register_pll46xx("fout_epll", "fin_pll",
		reg_base + EPLL_CON0, pll_4600);
		vpll = samsung_clk_register_pll46xx("fout_vpll", "mout_vpllsrc",
		reg_base + VPLL_CON0, pll_4650c);

		samsung_clk_add_lookup(apll, fout_apll);
		samsung_clk_add_lookup(mpll, fout_mpll);
		samsung_clk_add_lookup(epll, fout_epll);
		samsung_clk_add_lookup(vpll, fout_vpll);
		} else {

drivers/clk/samsung/clk-pll.c

+6 −46

Original line number	Diff line number	Diff line
		@@ -280,18 +280,10 @@ static const struct clk_ops samsung_pll36xx_clk_min_ops = {
		#define PLL45XX_PDIV_SHIFT (8)
		#define PLL45XX_SDIV_SHIFT (0)

		struct samsung_clk_pll45xx {
		struct clk_hw hw;
		enum pll45xx_type type;
		const void __iomem *con_reg;
		};

		#define to_clk_pll45xx(_hw) container_of(_hw, struct samsung_clk_pll45xx, hw)

		static unsigned long samsung_pll45xx_recalc_rate(struct clk_hw *hw,
		unsigned long parent_rate)
		{
		struct samsung_clk_pll45xx *pll = to_clk_pll45xx(hw);
		struct samsung_clk_pll *pll = to_clk_pll(hw);
		u32 mdiv, pdiv, sdiv, pll_con;
		u64 fvco = parent_rate;

		@@ -313,43 +305,6 @@ static const struct clk_ops samsung_pll45xx_clk_ops = {
		.recalc_rate = samsung_pll45xx_recalc_rate,
		};

		struct clk * __init samsung_clk_register_pll45xx(const char *name,
		const char pname, const void __iomem con_reg,
		enum pll45xx_type type)
		{
		struct samsung_clk_pll45xx *pll;
		struct clk *clk;
		struct clk_init_data init;

		pll = kzalloc(sizeof(*pll), GFP_KERNEL);
		if (!pll) {
		pr_err("%s: could not allocate pll clk %s\n", __func__, name);
		return NULL;
		}

		init.name = name;
		init.ops = &samsung_pll45xx_clk_ops;
		init.flags = CLK_GET_RATE_NOCACHE;
		init.parent_names = &pname;
		init.num_parents = 1;

		pll->hw.init = &init;
		pll->con_reg = con_reg;
		pll->type = type;

		clk = clk_register(NULL, &pll->hw);
		if (IS_ERR(clk)) {
		pr_err("%s: failed to register pll clock %s\n", __func__,
		name);
		kfree(pll);
		}

		if (clk_register_clkdev(clk, name, NULL))
		pr_err("%s: failed to register lookup for %s", __func__, name);

		return clk;
		}

		/*
		* PLL46xx Clock Type
		*/
		@@ -635,6 +590,11 @@ static void __init _samsung_clk_register_pll(struct samsung_pll_clock *pll_clk,
		else
		init.ops = &samsung_pll35xx_clk_ops;
		break;
		case pll_4500:
		case pll_4502:
		case pll_4508:
		init.ops = &samsung_pll45xx_clk_ops;
		break;
		/* clk_ops for 36xx and 2650 are similar */
		case pll_36xx:
		case pll_2650:

drivers/clk/samsung/clk-pll.h

+3 −9

Original line number	Diff line number	Diff line
		@@ -17,6 +17,9 @@ enum samsung_pll_type {
		pll_36xx,
		pll_2550,
		pll_2650,
		pll_4500,
		pll_4502,
		pll_4508,
		pll_6552,
		pll_6553,
		};
		@@ -48,21 +51,12 @@ struct samsung_pll_rate_table {
		unsigned int kdiv;
		};

		enum pll45xx_type {
		pll_4500,
		pll_4502,
		pll_4508
		};

		enum pll46xx_type {
		pll_4600,
		pll_4650,
		pll_4650c,
		};

		extern struct clk * __init samsung_clk_register_pll45xx(const char *name,
		const char pname, const void __iomem con_reg,
		enum pll45xx_type type);
		extern struct clk * __init samsung_clk_register_pll46xx(const char *name,
		const char pname, const void __iomem con_reg,
		enum pll46xx_type type);

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