Merge tag 'v3.20-exynos-clk' of git://linuxtv.org/snawrocki/samsung into clk-next

Exynos 3250, 4415 drivers cleanup by using common code
and addition of clock definitions for DVFS on Exynos4.

5 files changed, 112 insertions, 347 deletions

diff --git a/drivers/clk/samsung/clk-exynos3250.c b/drivers/clk/samsung/clk-exynos3250.c
index 6e6cca392082..cc4c348d8a24 100644
--- a/drivers/clk/samsung/clk-exynos3250.c
+++ b/drivers/clk/samsung/clk-exynos3250.c
@@ -104,27 +104,6 @@
 #define PWR_CTRL1_USE_CORE1_WFI			(1 << 1)
 #define PWR_CTRL1_USE_CORE0_WFI			(1 << 0)
 
-/* list of PLLs to be registered */
-enum exynos3250_plls {
-	apll, mpll, vpll, upll,
-	nr_plls
-};
-
-/* list of PLLs in DMC block to be registered */
-enum exynos3250_dmc_plls {
-	bpll, epll,
-	nr_dmc_plls
-};
-
-static void __iomem *reg_base;
-static void __iomem *dmc_reg_base;
-
-/*
- * Support for CMU save/restore across system suspends
- */
-#ifdef CONFIG_PM_SLEEP
-static struct samsung_clk_reg_dump *exynos3250_clk_regs;
-
 static unsigned long exynos3250_cmu_clk_regs[] __initdata = {
 	SRC_LEFTBUS,
 	DIV_LEFTBUS,
@@ -195,43 +174,6 @@ static unsigned long exynos3250_cmu_clk_regs[] __initdata = {
 	PWR_CTRL2,
 };
 
-static int exynos3250_clk_suspend(void)
-{
-	samsung_clk_save(reg_base, exynos3250_clk_regs,
-				ARRAY_SIZE(exynos3250_cmu_clk_regs));
-	return 0;
-}
-
-static void exynos3250_clk_resume(void)
-{
-	samsung_clk_restore(reg_base, exynos3250_clk_regs,
-				ARRAY_SIZE(exynos3250_cmu_clk_regs));
-}
-
-static struct syscore_ops exynos3250_clk_syscore_ops = {
-	.suspend = exynos3250_clk_suspend,
-	.resume = exynos3250_clk_resume,
-};
-
-static void exynos3250_clk_sleep_init(void)
-{
-	exynos3250_clk_regs =
-		samsung_clk_alloc_reg_dump(exynos3250_cmu_clk_regs,
-					   ARRAY_SIZE(exynos3250_cmu_clk_regs));
-	if (!exynos3250_clk_regs) {
-		pr_warn("%s: Failed to allocate sleep save data\n", __func__);
-		goto err;
-	}
-
-	register_syscore_ops(&exynos3250_clk_syscore_ops);
-	return;
-err:
-	kfree(exynos3250_clk_regs);
-}
-#else
-static inline void exynos3250_clk_sleep_init(void) { }
-#endif
-
 /* list of all parent clock list */
 PNAME(mout_vpllsrc_p)		= { "fin_pll", };
 
@@ -782,18 +724,18 @@ static struct samsung_pll_rate_table exynos3250_vpll_rates[] = {
 	{ /* sentinel */ }
 };
 
-static struct samsung_pll_clock exynos3250_plls[nr_plls] __initdata = {
-	[apll] = PLL(pll_35xx, CLK_FOUT_APLL, "fout_apll", "fin_pll",
-			APLL_LOCK, APLL_CON0, NULL),
-	[mpll] = PLL(pll_35xx, CLK_FOUT_MPLL, "fout_mpll", "fin_pll",
-			MPLL_LOCK, MPLL_CON0, NULL),
-	[vpll] = PLL(pll_36xx, CLK_FOUT_VPLL, "fout_vpll", "fin_pll",
-			VPLL_LOCK, VPLL_CON0, NULL),
-	[upll] = PLL(pll_35xx, CLK_FOUT_UPLL, "fout_upll", "fin_pll",
-			UPLL_LOCK, UPLL_CON0, NULL),
+static struct samsung_pll_clock exynos3250_plls[] __initdata = {
+	PLL(pll_35xx, CLK_FOUT_APLL, "fout_apll", "fin_pll",
+		APLL_LOCK, APLL_CON0, exynos3250_pll_rates),
+	PLL(pll_35xx, CLK_FOUT_MPLL, "fout_mpll", "fin_pll",
+			MPLL_LOCK, MPLL_CON0, exynos3250_pll_rates),
+	PLL(pll_36xx, CLK_FOUT_VPLL, "fout_vpll", "fin_pll",
+			VPLL_LOCK, VPLL_CON0, exynos3250_vpll_rates),
+	PLL(pll_35xx, CLK_FOUT_UPLL, "fout_upll", "fin_pll",
+			UPLL_LOCK, UPLL_CON0, exynos3250_pll_rates),
 };
 
-static void __init exynos3_core_down_clock(void)
+static void __init exynos3_core_down_clock(void __iomem *reg_base)
 {
 	unsigned int tmp;
 
@@ -814,38 +756,31 @@ static void __init exynos3_core_down_clock(void)
 	__raw_writel(0x0, reg_base + PWR_CTRL2);
 }
 
+static struct samsung_cmu_info cmu_info __initdata = {
+	.pll_clks		= exynos3250_plls,
+	.nr_pll_clks		= ARRAY_SIZE(exynos3250_plls),
+	.mux_clks		= mux_clks,
+	.nr_mux_clks		= ARRAY_SIZE(mux_clks),
+	.div_clks		= div_clks,
+	.nr_div_clks		= ARRAY_SIZE(div_clks),
+	.gate_clks		= gate_clks,
+	.nr_gate_clks		= ARRAY_SIZE(gate_clks),
+	.fixed_factor_clks	= fixed_factor_clks,
+	.nr_fixed_factor_clks	= ARRAY_SIZE(fixed_factor_clks),
+	.nr_clk_ids		= CLK_NR_CLKS,
+	.clk_regs		= exynos3250_cmu_clk_regs,
+	.nr_clk_regs		= ARRAY_SIZE(exynos3250_cmu_clk_regs),
+};
+
 static void __init exynos3250_cmu_init(struct device_node *np)
 {
 	struct samsung_clk_provider *ctx;
 
-	reg_base = of_iomap(np, 0);
-	if (!reg_base)
-		panic("%s: failed to map registers\n", __func__);
-
-	ctx = samsung_clk_init(np, reg_base, CLK_NR_CLKS);
+	ctx = samsung_cmu_register_one(np, &cmu_info);
 	if (!ctx)
-		panic("%s: unable to allocate context.\n", __func__);
-
-	samsung_clk_register_fixed_factor(ctx, fixed_factor_clks,
-					  ARRAY_SIZE(fixed_factor_clks));
-
-	exynos3250_plls[apll].rate_table = exynos3250_pll_rates;
-	exynos3250_plls[mpll].rate_table = exynos3250_pll_rates;
-	exynos3250_plls[vpll].rate_table = exynos3250_vpll_rates;
-	exynos3250_plls[upll].rate_table = exynos3250_pll_rates;
-
-	samsung_clk_register_pll(ctx, exynos3250_plls,
-					ARRAY_SIZE(exynos3250_plls), reg_base);
-
-	samsung_clk_register_mux(ctx, mux_clks, ARRAY_SIZE(mux_clks));
-	samsung_clk_register_div(ctx, div_clks, ARRAY_SIZE(div_clks));
-	samsung_clk_register_gate(ctx, gate_clks, ARRAY_SIZE(gate_clks));
-
-	exynos3_core_down_clock();
+		return;
 
-	exynos3250_clk_sleep_init();
-
-	samsung_clk_of_add_provider(np, ctx);
+	exynos3_core_down_clock(ctx->reg_base);
 }
 CLK_OF_DECLARE(exynos3250_cmu, "samsung,exynos3250-cmu", exynos3250_cmu_init);
 
@@ -872,12 +807,6 @@ CLK_OF_DECLARE(exynos3250_cmu, "samsung,exynos3250-cmu", exynos3250_cmu_init);
 #define EPLL_CON2		0x111c
 #define SRC_EPLL		0x1120
 
-/*
- * Support for CMU save/restore across system suspends
- */
-#ifdef CONFIG_PM_SLEEP
-static struct samsung_clk_reg_dump *exynos3250_dmc_clk_regs;
-
 static unsigned long exynos3250_cmu_dmc_clk_regs[] __initdata = {
 	BPLL_LOCK,
 	BPLL_CON0,
@@ -899,43 +828,6 @@ static unsigned long exynos3250_cmu_dmc_clk_regs[] __initdata = {
 	SRC_EPLL,
 };
 
-static int exynos3250_dmc_clk_suspend(void)
-{
-	samsung_clk_save(dmc_reg_base, exynos3250_dmc_clk_regs,
-				ARRAY_SIZE(exynos3250_cmu_dmc_clk_regs));
-	return 0;
-}
-
-static void exynos3250_dmc_clk_resume(void)
-{
-	samsung_clk_restore(dmc_reg_base, exynos3250_dmc_clk_regs,
-				ARRAY_SIZE(exynos3250_cmu_dmc_clk_regs));
-}
-
-static struct syscore_ops exynos3250_dmc_clk_syscore_ops = {
-	.suspend = exynos3250_dmc_clk_suspend,
-	.resume = exynos3250_dmc_clk_resume,
-};
-
-static void exynos3250_dmc_clk_sleep_init(void)
-{
-	exynos3250_dmc_clk_regs =
-		samsung_clk_alloc_reg_dump(exynos3250_cmu_dmc_clk_regs,
-				   ARRAY_SIZE(exynos3250_cmu_dmc_clk_regs));
-	if (!exynos3250_dmc_clk_regs) {
-		pr_warn("%s: Failed to allocate sleep save data\n", __func__);
-		goto err;
-	}
-
-	register_syscore_ops(&exynos3250_dmc_clk_syscore_ops);
-	return;
-err:
-	kfree(exynos3250_dmc_clk_regs);
-}
-#else
-static inline void exynos3250_dmc_clk_sleep_init(void) { }
-#endif
-
 PNAME(mout_epll_p)	= { "fin_pll", "fout_epll", };
 PNAME(mout_bpll_p)	= { "fin_pll", "fout_bpll", };
 PNAME(mout_mpll_mif_p)	= { "fin_pll", "sclk_mpll_mif", };
@@ -977,43 +869,28 @@ static struct samsung_div_clock dmc_div_clks[] __initdata = {
 	DIV(CLK_DIV_DMCD, "div_dmcd", "div_dmc", DIV_DMC1, 11, 3),
 };
 
-static struct samsung_pll_clock exynos3250_dmc_plls[nr_dmc_plls] __initdata = {
-	[bpll] = PLL(pll_35xx, CLK_FOUT_BPLL, "fout_bpll", "fin_pll",
-			BPLL_LOCK, BPLL_CON0, NULL),
-	[epll] = PLL(pll_36xx, CLK_FOUT_EPLL, "fout_epll", "fin_pll",
-			EPLL_LOCK, EPLL_CON0, NULL),
+static struct samsung_pll_clock exynos3250_dmc_plls[] __initdata = {
+	PLL(pll_35xx, CLK_FOUT_BPLL, "fout_bpll", "fin_pll",
+		BPLL_LOCK, BPLL_CON0, exynos3250_pll_rates),
+	PLL(pll_36xx, CLK_FOUT_EPLL, "fout_epll", "fin_pll",
+		EPLL_LOCK, EPLL_CON0, exynos3250_epll_rates),
+};
+
+static struct samsung_cmu_info dmc_cmu_info __initdata = {
+	.pll_clks		= exynos3250_dmc_plls,
+	.nr_pll_clks		= ARRAY_SIZE(exynos3250_dmc_plls),
+	.mux_clks		= dmc_mux_clks,
+	.nr_mux_clks		= ARRAY_SIZE(dmc_mux_clks),
+	.div_clks		= dmc_div_clks,
+	.nr_div_clks		= ARRAY_SIZE(dmc_div_clks),
+	.nr_clk_ids		= NR_CLKS_DMC,
+	.clk_regs		= exynos3250_cmu_dmc_clk_regs,
+	.nr_clk_regs		= ARRAY_SIZE(exynos3250_cmu_dmc_clk_regs),
 };
 
 static void __init exynos3250_cmu_dmc_init(struct device_node *np)
 {
-	struct samsung_clk_provider *ctx;
-
-	dmc_reg_base = of_iomap(np, 0);
-	if (!dmc_reg_base)
-		panic("%s: failed to map registers\n", __func__);
-
-	ctx = samsung_clk_init(np, dmc_reg_base, NR_CLKS_DMC);
-	if (!ctx)
-		panic("%s: unable to allocate context.\n", __func__);
-
-	exynos3250_dmc_plls[bpll].rate_table = exynos3250_pll_rates;
-	exynos3250_dmc_plls[epll].rate_table = exynos3250_epll_rates;
-
-	pr_err("CLK registering epll bpll: %d, %d, %d, %d\n",
-			exynos3250_dmc_plls[bpll].rate_table[0].rate,
-			exynos3250_dmc_plls[bpll].rate_table[0].mdiv,
-			exynos3250_dmc_plls[bpll].rate_table[0].pdiv,
-			exynos3250_dmc_plls[bpll].rate_table[0].sdiv
-	      );
-	samsung_clk_register_pll(ctx, exynos3250_dmc_plls,
-				ARRAY_SIZE(exynos3250_dmc_plls), dmc_reg_base);
-
-	samsung_clk_register_mux(ctx, dmc_mux_clks, ARRAY_SIZE(dmc_mux_clks));
-	samsung_clk_register_div(ctx, dmc_div_clks, ARRAY_SIZE(dmc_div_clks));
-
-	exynos3250_dmc_clk_sleep_init();
-
-	samsung_clk_of_add_provider(np, ctx);
+	samsung_cmu_register_one(np, &dmc_cmu_info);
 }
 CLK_OF_DECLARE(exynos3250_cmu_dmc, "samsung,exynos3250-cmu-dmc",
 		exynos3250_cmu_dmc_init);
diff --git a/drivers/clk/samsung/clk-exynos4.c b/drivers/clk/samsung/clk-exynos4.c
index 88e8c6bbd77f..51462e85675f 100644
--- a/drivers/clk/samsung/clk-exynos4.c
+++ b/drivers/clk/samsung/clk-exynos4.c
@@ -703,12 +703,12 @@ static struct samsung_mux_clock exynos4x12_mux_clks[] __initdata = {
 
 /* list of divider clocks supported in all exynos4 soc's */
 static struct samsung_div_clock exynos4_div_clks[] __initdata = {
-	DIV(0, "div_gdl", "mout_gdl", DIV_LEFTBUS, 0, 3),
+	DIV(CLK_DIV_GDL, "div_gdl", "mout_gdl", DIV_LEFTBUS, 0, 3),
 	DIV(0, "div_gpl", "div_gdl", DIV_LEFTBUS, 4, 3),
 	DIV(0, "div_clkout_leftbus", "mout_clkout_leftbus",
 			CLKOUT_CMU_LEFTBUS, 8, 6),
 
-	DIV(0, "div_gdr", "mout_gdr", DIV_RIGHTBUS, 0, 3),
+	DIV(CLK_DIV_GDR, "div_gdr", "mout_gdr", DIV_RIGHTBUS, 0, 3),
 	DIV(0, "div_gpr", "div_gdr", DIV_RIGHTBUS, 4, 3),
 	DIV(0, "div_clkout_rightbus", "mout_clkout_rightbus",
 			CLKOUT_CMU_RIGHTBUS, 8, 6),
@@ -781,10 +781,10 @@ static struct samsung_div_clock exynos4_div_clks[] __initdata = {
 			CLK_SET_RATE_PARENT, 0),
 	DIV(0, "div_clkout_top", "mout_clkout_top", CLKOUT_CMU_TOP, 8, 6),
 
-	DIV(0, "div_acp", "mout_dmc_bus", DIV_DMC0, 0, 3),
+	DIV(CLK_DIV_ACP, "div_acp", "mout_dmc_bus", DIV_DMC0, 0, 3),
 	DIV(0, "div_acp_pclk", "div_acp", DIV_DMC0, 4, 3),
 	DIV(0, "div_dphy", "mout_dphy", DIV_DMC0, 8, 3),
-	DIV(0, "div_dmc", "mout_dmc_bus", DIV_DMC0, 12, 3),
+	DIV(CLK_DIV_DMC, "div_dmc", "mout_dmc_bus", DIV_DMC0, 12, 3),
 	DIV(0, "div_dmcd", "div_dmc", DIV_DMC0, 16, 3),
 	DIV(0, "div_dmcp", "div_dmcd", DIV_DMC0, 20, 3),
 	DIV(0, "div_pwi", "mout_pwi", DIV_DMC1, 8, 4),
@@ -829,7 +829,7 @@ static struct samsung_div_clock exynos4x12_div_clks[] __initdata = {
 	DIV_F(CLK_DIV_MCUISP1, "div_mcuisp1", "div_mcuisp0", E4X12_DIV_ISP1,
 						8, 3, CLK_GET_RATE_NOCACHE, 0),
 	DIV(CLK_SCLK_FIMG2D, "sclk_fimg2d", "mout_g2d", DIV_DMC1, 0, 4),
-	DIV(0, "div_c2c", "mout_c2c", DIV_DMC1, 4, 3),
+	DIV(CLK_DIV_C2C, "div_c2c", "mout_c2c", DIV_DMC1, 4, 3),
 	DIV(0, "div_c2c_aclk", "div_c2c", DIV_DMC1, 12, 3),
 };
 
diff --git a/drivers/clk/samsung/clk-exynos4415.c b/drivers/clk/samsung/clk-exynos4415.c
index 2123fc251e0f..6c78b09c829f 100644
--- a/drivers/clk/samsung/clk-exynos4415.c
+++ b/drivers/clk/samsung/clk-exynos4415.c
@@ -113,19 +113,6 @@
 #define DIV_CPU0		0x14500
 #define DIV_CPU1		0x14504
 
-enum exynos4415_plls {
-	apll, epll, g3d_pll, isp_pll, disp_pll,
-	nr_plls,
-};
-
-static struct samsung_clk_provider *exynos4415_ctx;
-
-/*
- * Support for CMU save/restore across system suspends
- */
-#ifdef CONFIG_PM_SLEEP
-static struct samsung_clk_reg_dump *exynos4415_clk_regs;
-
 static unsigned long exynos4415_cmu_clk_regs[] __initdata = {
 	SRC_LEFTBUS,
 	DIV_LEFTBUS,
@@ -219,41 +206,6 @@ static unsigned long exynos4415_cmu_clk_regs[] __initdata = {
 	DIV_CPU1,
 };
 
-static int exynos4415_clk_suspend(void)
-{
-	samsung_clk_save(exynos4415_ctx->reg_base, exynos4415_clk_regs,
-				ARRAY_SIZE(exynos4415_cmu_clk_regs));
-
-	return 0;
-}
-
-static void exynos4415_clk_resume(void)
-{
-	samsung_clk_restore(exynos4415_ctx->reg_base, exynos4415_clk_regs,
-				ARRAY_SIZE(exynos4415_cmu_clk_regs));
-}
-
-static struct syscore_ops exynos4415_clk_syscore_ops = {
-	.suspend = exynos4415_clk_suspend,
-	.resume = exynos4415_clk_resume,
-};
-
-static void exynos4415_clk_sleep_init(void)
-{
-	exynos4415_clk_regs =
-		samsung_clk_alloc_reg_dump(exynos4415_cmu_clk_regs,
-					ARRAY_SIZE(exynos4415_cmu_clk_regs));
-	if (!exynos4415_clk_regs) {
-		pr_warn("%s: Failed to allocate sleep save data\n", __func__);
-		return;
-	}
-
-	register_syscore_ops(&exynos4415_clk_syscore_ops);
-}
-#else
-static inline void exynos4415_clk_sleep_init(void) { }
-#endif
-
 /* list of all parent clock list */
 PNAME(mout_g3d_pllsrc_p)	= { "fin_pll", };
 
@@ -959,56 +911,40 @@ static struct samsung_pll_rate_table exynos4415_epll_rates[] = {
 	{ /* sentinel */ }
 };
 
-static struct samsung_pll_clock exynos4415_plls[nr_plls] __initdata = {
-	[apll] = PLL(pll_35xx, CLK_FOUT_APLL, "fout_apll", "fin_pll",
-			APLL_LOCK, APLL_CON0, NULL),
-	[epll] = PLL(pll_36xx, CLK_FOUT_EPLL, "fout_epll", "fin_pll",
-			EPLL_LOCK, EPLL_CON0, NULL),
-	[g3d_pll] = PLL(pll_35xx, CLK_FOUT_G3D_PLL, "fout_g3d_pll",
-			"mout_g3d_pllsrc", G3D_PLL_LOCK, G3D_PLL_CON0, NULL),
-	[isp_pll] = PLL(pll_35xx, CLK_FOUT_ISP_PLL, "fout_isp_pll", "fin_pll",
-			ISP_PLL_LOCK, ISP_PLL_CON0, NULL),
-	[disp_pll] = PLL(pll_35xx, CLK_FOUT_DISP_PLL, "fout_disp_pll",
-			"fin_pll", DISP_PLL_LOCK, DISP_PLL_CON0, NULL),
+static struct samsung_pll_clock exynos4415_plls[] __initdata = {
+	PLL(pll_35xx, CLK_FOUT_APLL, "fout_apll", "fin_pll",
+		APLL_LOCK, APLL_CON0, exynos4415_pll_rates),
+	PLL(pll_36xx, CLK_FOUT_EPLL, "fout_epll", "fin_pll",
+		EPLL_LOCK, EPLL_CON0, exynos4415_epll_rates),
+	PLL(pll_35xx, CLK_FOUT_G3D_PLL, "fout_g3d_pll", "mout_g3d_pllsrc",
+		G3D_PLL_LOCK, G3D_PLL_CON0, exynos4415_pll_rates),
+	PLL(pll_35xx, CLK_FOUT_ISP_PLL, "fout_isp_pll", "fin_pll",
+		ISP_PLL_LOCK, ISP_PLL_CON0, exynos4415_pll_rates),
+	PLL(pll_35xx, CLK_FOUT_DISP_PLL, "fout_disp_pll",
+		"fin_pll", DISP_PLL_LOCK, DISP_PLL_CON0, exynos4415_pll_rates),
+};
+
+static struct samsung_cmu_info cmu_info __initdata = {
+	.pll_clks		= exynos4415_plls,
+	.nr_pll_clks		= ARRAY_SIZE(exynos4415_plls),
+	.mux_clks		= exynos4415_mux_clks,
+	.nr_mux_clks		= ARRAY_SIZE(exynos4415_mux_clks),
+	.div_clks		= exynos4415_div_clks,
+	.nr_div_clks		= ARRAY_SIZE(exynos4415_div_clks),
+	.gate_clks		= exynos4415_gate_clks,
+	.nr_gate_clks		= ARRAY_SIZE(exynos4415_gate_clks),
+	.fixed_clks		= exynos4415_fixed_rate_clks,
+	.nr_fixed_clks		= ARRAY_SIZE(exynos4415_fixed_rate_clks),
+	.fixed_factor_clks	= exynos4415_fixed_factor_clks,
+	.nr_fixed_factor_clks	= ARRAY_SIZE(exynos4415_fixed_factor_clks),
+	.nr_clk_ids		= CLK_NR_CLKS,
+	.clk_regs		= exynos4415_cmu_clk_regs,
+	.nr_clk_regs		= ARRAY_SIZE(exynos4415_cmu_clk_regs),
 };
 
 static void __init exynos4415_cmu_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__);
-
-	exynos4415_ctx = samsung_clk_init(np, reg_base, CLK_NR_CLKS);
-	if (!exynos4415_ctx)
-		panic("%s: unable to allocate context.\n", __func__);
-
-	exynos4415_plls[apll].rate_table = exynos4415_pll_rates;
-	exynos4415_plls[epll].rate_table = exynos4415_epll_rates;
-	exynos4415_plls[g3d_pll].rate_table = exynos4415_pll_rates;
-	exynos4415_plls[isp_pll].rate_table = exynos4415_pll_rates;
-	exynos4415_plls[disp_pll].rate_table = exynos4415_pll_rates;
-
-	samsung_clk_register_fixed_factor(exynos4415_ctx,
-				exynos4415_fixed_factor_clks,
-				ARRAY_SIZE(exynos4415_fixed_factor_clks));
-	samsung_clk_register_fixed_rate(exynos4415_ctx,
-				exynos4415_fixed_rate_clks,
-				ARRAY_SIZE(exynos4415_fixed_rate_clks));
-
-	samsung_clk_register_pll(exynos4415_ctx, exynos4415_plls,
-				ARRAY_SIZE(exynos4415_plls), reg_base);
-	samsung_clk_register_mux(exynos4415_ctx, exynos4415_mux_clks,
-				ARRAY_SIZE(exynos4415_mux_clks));
-	samsung_clk_register_div(exynos4415_ctx, exynos4415_div_clks,
-				ARRAY_SIZE(exynos4415_div_clks));
-	samsung_clk_register_gate(exynos4415_ctx, exynos4415_gate_clks,
-				ARRAY_SIZE(exynos4415_gate_clks));
-
-	exynos4415_clk_sleep_init();
-
-	samsung_clk_of_add_provider(np, exynos4415_ctx);
+	samsung_cmu_register_one(np, &cmu_info);
 }
 CLK_OF_DECLARE(exynos4415_cmu, "samsung,exynos4415-cmu", exynos4415_cmu_init);
 
@@ -1027,16 +963,6 @@ CLK_OF_DECLARE(exynos4415_cmu, "samsung,exynos4415-cmu", exynos4415_cmu_init);
 #define SRC_DMC			0x300
 #define DIV_DMC1		0x504
 
-enum exynos4415_dmc_plls {
-	mpll, bpll,
-	nr_dmc_plls,
-};
-
-static struct samsung_clk_provider *exynos4415_dmc_ctx;
-
-#ifdef CONFIG_PM_SLEEP
-static struct samsung_clk_reg_dump *exynos4415_dmc_clk_regs;
-
 static unsigned long exynos4415_cmu_dmc_clk_regs[] __initdata = {
 	MPLL_LOCK,
 	MPLL_CON0,
@@ -1050,42 +976,6 @@ static unsigned long exynos4415_cmu_dmc_clk_regs[] __initdata = {
 	DIV_DMC1,
 };
 
-static int exynos4415_dmc_clk_suspend(void)
-{
-	samsung_clk_save(exynos4415_dmc_ctx->reg_base,
-				exynos4415_dmc_clk_regs,
-				ARRAY_SIZE(exynos4415_cmu_dmc_clk_regs));
-	return 0;
-}
-
-static void exynos4415_dmc_clk_resume(void)
-{
-	samsung_clk_restore(exynos4415_dmc_ctx->reg_base,
-				exynos4415_dmc_clk_regs,
-				ARRAY_SIZE(exynos4415_cmu_dmc_clk_regs));
-}
-
-static struct syscore_ops exynos4415_dmc_clk_syscore_ops = {
-	.suspend = exynos4415_dmc_clk_suspend,
-	.resume = exynos4415_dmc_clk_resume,
-};
-
-static void exynos4415_dmc_clk_sleep_init(void)
-{
-	exynos4415_dmc_clk_regs =
-		samsung_clk_alloc_reg_dump(exynos4415_cmu_dmc_clk_regs,
-				ARRAY_SIZE(exynos4415_cmu_dmc_clk_regs));
-	if (!exynos4415_dmc_clk_regs) {
-		pr_warn("%s: Failed to allocate sleep save data\n", __func__);
-		return;
-	}
-
-	register_syscore_ops(&exynos4415_dmc_clk_syscore_ops);
-}
-#else
-static inline void exynos4415_dmc_clk_sleep_init(void) { }
-#endif /* CONFIG_PM_SLEEP */
-
 PNAME(mout_mpll_p)		= { "fin_pll", "fout_mpll", };
 PNAME(mout_bpll_p)		= { "fin_pll", "fout_bpll", };
 PNAME(mbpll_p)			= { "mout_mpll", "mout_bpll", };
@@ -1107,38 +997,28 @@ static struct samsung_div_clock exynos4415_dmc_div_clks[] __initdata = {
 	DIV(CLK_DMC_DIV_MPLL_PRE, "div_mpll_pre", "mout_mpll", DIV_DMC1, 8, 2),
 };
 
-static struct samsung_pll_clock exynos4415_dmc_plls[nr_dmc_plls] __initdata = {
-	[mpll] = PLL(pll_35xx, CLK_DMC_FOUT_MPLL, "fout_mpll", "fin_pll",
-		MPLL_LOCK, MPLL_CON0, NULL),
-	[bpll] = PLL(pll_35xx, CLK_DMC_FOUT_BPLL, "fout_bpll", "fin_pll",
-		BPLL_LOCK, BPLL_CON0, NULL),
+static struct samsung_pll_clock exynos4415_dmc_plls[] __initdata = {
+	PLL(pll_35xx, CLK_DMC_FOUT_MPLL, "fout_mpll", "fin_pll",
+		MPLL_LOCK, MPLL_CON0, exynos4415_pll_rates),
+	PLL(pll_35xx, CLK_DMC_FOUT_BPLL, "fout_bpll", "fin_pll",
+		BPLL_LOCK, BPLL_CON0, exynos4415_pll_rates),
+};
+
+static struct samsung_cmu_info cmu_dmc_info __initdata = {
+	.pll_clks		= exynos4415_dmc_plls,
+	.nr_pll_clks		= ARRAY_SIZE(exynos4415_dmc_plls),
+	.mux_clks		= exynos4415_dmc_mux_clks,
+	.nr_mux_clks		= ARRAY_SIZE(exynos4415_dmc_mux_clks),
+	.div_clks		= exynos4415_dmc_div_clks,
+	.nr_div_clks		= ARRAY_SIZE(exynos4415_dmc_div_clks),
+	.nr_clk_ids		= NR_CLKS_DMC,
+	.clk_regs		= exynos4415_cmu_dmc_clk_regs,
+	.nr_clk_regs		= ARRAY_SIZE(exynos4415_cmu_dmc_clk_regs),
 };
 
 static void __init exynos4415_cmu_dmc_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__);
-
-	exynos4415_dmc_ctx = samsung_clk_init(np, reg_base, NR_CLKS_DMC);
-	if (!exynos4415_dmc_ctx)
-		panic("%s: unable to allocate context.\n", __func__);
-
-	exynos4415_dmc_plls[mpll].rate_table = exynos4415_pll_rates;
-	exynos4415_dmc_plls[bpll].rate_table = exynos4415_pll_rates;
-
-	samsung_clk_register_pll(exynos4415_dmc_ctx, exynos4415_dmc_plls,
-				ARRAY_SIZE(exynos4415_dmc_plls), reg_base);
-	samsung_clk_register_mux(exynos4415_dmc_ctx, exynos4415_dmc_mux_clks,
-				ARRAY_SIZE(exynos4415_dmc_mux_clks));
-	samsung_clk_register_div(exynos4415_dmc_ctx, exynos4415_dmc_div_clks,
-				ARRAY_SIZE(exynos4415_dmc_div_clks));
-
-	exynos4415_dmc_clk_sleep_init();
-
-	samsung_clk_of_add_provider(np, exynos4415_dmc_ctx);
+	samsung_cmu_register_one(np, &cmu_dmc_info);
 }
 CLK_OF_DECLARE(exynos4415_cmu_dmc, "samsung,exynos4415-cmu-dmc",
 		exynos4415_cmu_dmc_init);
diff --git a/drivers/clk/samsung/clk.c b/drivers/clk/samsung/clk.c
index 4bda54095a16..9e1f88c04fd4 100644
--- a/drivers/clk/samsung/clk.c
+++ b/drivers/clk/samsung/clk.c
@@ -374,19 +374,24 @@ static void samsung_clk_sleep_init(void __iomem *reg_base,
  * Common function which registers plls, muxes, dividers and gates
  * for each CMU. It also add CMU register list to register cache.
  */
-void __init samsung_cmu_register_one(struct device_node *np,
+struct samsung_clk_provider * __init samsung_cmu_register_one(
+			struct device_node *np,
 			struct samsung_cmu_info *cmu)
 {
 	void __iomem *reg_base;
 	struct samsung_clk_provider *ctx;
 
 	reg_base = of_iomap(np, 0);
-	if (!reg_base)
+	if (!reg_base) {
 		panic("%s: failed to map registers\n", __func__);
+		return NULL;
+	}
 
 	ctx = samsung_clk_init(np, reg_base, cmu->nr_clk_ids);
-	if (!ctx)
+	if (!ctx) {
 		panic("%s: unable to alllocate ctx\n", __func__);
+		return ctx;
+	}
 
 	if (cmu->pll_clks)
 		samsung_clk_register_pll(ctx, cmu->pll_clks, cmu->nr_pll_clks,
@@ -410,4 +415,6 @@ void __init samsung_cmu_register_one(struct device_node *np,
 			cmu->nr_clk_regs);
 
 	samsung_clk_of_add_provider(np, ctx);
+
+	return ctx;
 }
diff --git a/drivers/clk/samsung/clk.h b/drivers/clk/samsung/clk.h
index 8acabe1f32c4..e4c75383cea7 100644
--- a/drivers/clk/samsung/clk.h
+++ b/drivers/clk/samsung/clk.h
@@ -392,7 +392,8 @@ extern void __init samsung_clk_register_pll(struct samsung_clk_provider *ctx,
 			struct samsung_pll_clock *pll_list,
 			unsigned int nr_clk, void __iomem *base);
 
-extern void __init samsung_cmu_register_one(struct device_node *,
+extern struct samsung_clk_provider __init *samsung_cmu_register_one(
+			struct device_node *,
 			struct samsung_cmu_info *);
 
 extern unsigned long _get_rate(const char *clk_name);