Merge branch 'for_3.16/exynos5260' of...

Merge branch 'for_3.16/exynos5260' of git://git.kernel.org/pub/scm/linux/kernel/git/tfiga/samsung-clk into v3.16-next/clk-samsung

Pull Samsung clock exynos5260 from Tomasz Figa:

"This pull request contains patches preparing Samsung Common Clock Framework
helpers to support Exynos5260 by adding support for multiple clock providers
and then adding clock driver for Exynos5260."
Acked-by: Mike Turquette <mturquette@linaro.org>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>

Documentation/devicetree/bindings/clock/exynos5260-clock.txt

+* Samsung Exynos5260 Clock Controller
+
+Exynos5260 has 13 clock controllers which are instantiated
+independently from the device-tree. These clock controllers
+generate and supply clocks to various hardware blocks within
+the SoC.
+
+Each clock is assigned an identifier and client nodes can use
+this identifier to specify the clock which they consume. All
+available clocks are defined as preprocessor macros in
+dt-bindings/clock/exynos5260-clk.h header and can be used in
+device tree sources.
+
+External clocks:
+
+There are several clocks that are generated outside the SoC. It
+is expected that they are defined using standard clock bindings
+with following clock-output-names:
+
+ - "fin_pll" - PLL input clock from XXTI
+ - "xrtcxti" - input clock from XRTCXTI
+ - "ioclk_pcm_extclk" - pcm external operation clock
+ - "ioclk_spdif_extclk" - spdif external operation clock
+ - "ioclk_i2s_cdclk" - i2s0 codec clock
+
+Phy clocks:
+
+There are several clocks which are generated by specific PHYs.
+These clocks are fed into the clock controller and then routed to
+the hardware blocks. These clocks are defined as fixed clocks in the
+driver with following names:
+
+ - "phyclk_dptx_phy_ch3_txd_clk" - dp phy clock for channel 3
+ - "phyclk_dptx_phy_ch2_txd_clk" - dp phy clock for channel 2
+ - "phyclk_dptx_phy_ch1_txd_clk" - dp phy clock for channel 1
+ - "phyclk_dptx_phy_ch0_txd_clk" - dp phy clock for channel 0
+ - "phyclk_hdmi_phy_tmds_clko" - hdmi phy tmds clock
+ - "phyclk_hdmi_phy_pixel_clko" - hdmi phy pixel clock
+ - "phyclk_hdmi_link_o_tmds_clkhi" - hdmi phy for hdmi link
+ - "phyclk_dptx_phy_o_ref_clk_24m" - dp phy reference clock
+ - "phyclk_dptx_phy_clk_div2"
+ - "phyclk_mipi_dphy_4l_m_rxclkesc0"
+ - "phyclk_usbhost20_phy_phyclock" - usb 2.0 phy clock
+ - "phyclk_usbhost20_phy_freeclk"
+ - "phyclk_usbhost20_phy_clk48mohci"
+ - "phyclk_usbdrd30_udrd30_pipe_pclk"
+ - "phyclk_usbdrd30_udrd30_phyclock" - usb 3.0 phy clock
+
+Required Properties for Clock Controller:
+
+ - compatible: should be one of the following.
+	1) "samsung,exynos5260-clock-top"
+	2) "samsung,exynos5260-clock-peri"
+	3) "samsung,exynos5260-clock-egl"
+	4) "samsung,exynos5260-clock-kfc"
+	5) "samsung,exynos5260-clock-g2d"
+	6) "samsung,exynos5260-clock-mif"
+	7) "samsung,exynos5260-clock-mfc"
+	8) "samsung,exynos5260-clock-g3d"
+	9) "samsung,exynos5260-clock-fsys"
+	10) "samsung,exynos5260-clock-aud"
+	11) "samsung,exynos5260-clock-isp"
+	12) "samsung,exynos5260-clock-gscl"
+	13) "samsung,exynos5260-clock-disp"
+
+ - reg: physical base address of the controller and the length of
+	memory mapped region.
+
+ - #clock-cells: should be 1.
+
+ - clocks: list of clock identifiers which are fed as the input to
+	the given clock controller. Please refer the next section to find
+	the input clocks for a given controller.
+
+ - clock-names: list of names of clocks which are fed as the input
+	to the given clock controller.
+
+Input clocks for top clock controller:
+	- fin_pll
+	- dout_mem_pll
+	- dout_bus_pll
+	- dout_media_pll
+
+Input clocks for peri clock controller:
+	- fin_pll
+	- ioclk_pcm_extclk
+	- ioclk_i2s_cdclk
+	- ioclk_spdif_extclk
+	- phyclk_hdmi_phy_ref_cko
+	- dout_aclk_peri_66
+	- dout_sclk_peri_uart0
+	- dout_sclk_peri_uart1
+	- dout_sclk_peri_uart2
+	- dout_sclk_peri_spi0_b
+	- dout_sclk_peri_spi1_b
+	- dout_sclk_peri_spi2_b
+	- dout_aclk_peri_aud
+	- dout_sclk_peri_spi0_b
+
+Input clocks for egl clock controller:
+	- fin_pll
+	- dout_bus_pll
+
+Input clocks for kfc clock controller:
+	- fin_pll
+	- dout_media_pll
+
+Input clocks for g2d clock controller:
+	- fin_pll
+	- dout_aclk_g2d_333
+
+Input clocks for mif clock controller:
+	- fin_pll
+
+Input clocks for mfc clock controller:
+	- fin_pll
+	- dout_aclk_mfc_333
+
+Input clocks for g3d clock controller:
+	- fin_pll
+
+Input clocks for fsys clock controller:
+	- fin_pll
+	- phyclk_usbhost20_phy_phyclock
+	- phyclk_usbhost20_phy_freeclk
+	- phyclk_usbhost20_phy_clk48mohci
+	- phyclk_usbdrd30_udrd30_pipe_pclk
+	- phyclk_usbdrd30_udrd30_phyclock
+	- dout_aclk_fsys_200
+
+Input clocks for aud clock controller:
+	- fin_pll
+	- fout_aud_pll
+	- ioclk_i2s_cdclk
+	- ioclk_pcm_extclk
+
+Input clocks for isp clock controller:
+	- fin_pll
+	- dout_aclk_isp1_266
+	- dout_aclk_isp1_400
+	- mout_aclk_isp1_266
+
+Input clocks for gscl clock controller:
+	- fin_pll
+	- dout_aclk_gscl_400
+	- dout_aclk_gscl_333
+
+Input clocks for disp clock controller:
+	- fin_pll
+	- phyclk_dptx_phy_ch3_txd_clk
+	- phyclk_dptx_phy_ch2_txd_clk
+	- phyclk_dptx_phy_ch1_txd_clk
+	- phyclk_dptx_phy_ch0_txd_clk
+	- phyclk_hdmi_phy_tmds_clko
+	- phyclk_hdmi_phy_ref_clko
+	- phyclk_hdmi_phy_pixel_clko
+	- phyclk_hdmi_link_o_tmds_clkhi
+	- phyclk_mipi_dphy_4l_m_txbyte_clkhs
+	- phyclk_dptx_phy_o_ref_clk_24m
+	- phyclk_dptx_phy_clk_div2
+	- phyclk_mipi_dphy_4l_m_rxclkesc0
+	- phyclk_hdmi_phy_ref_cko
+	- ioclk_spdif_extclk
+	- dout_aclk_peri_aud
+	- dout_aclk_disp_222
+	- dout_sclk_disp_pixel
+	- dout_aclk_disp_333
+
+Example 1: An example of a clock controller node is listed below.
+
+	clock_mfc: clock-controller@11090000 {
+		compatible = "samsung,exynos5260-clock-mfc";
+		clock = <&fin_pll>, <&clock_top TOP_DOUT_ACLK_MFC_333>;
+		clock-names = "fin_pll", "dout_aclk_mfc_333";
+		reg = <0x11090000 0x10000>;
+		#clock-cells = <1>;
+	};
+
+Example 2: UART controller node that consumes the clock generated by the
+		peri clock controller. Refer to the standard clock bindings for
+		information about 'clocks' and 'clock-names' property.
+
+	serial@12C00000 {
+		compatible = "samsung,exynos4210-uart";
+		reg = <0x12C00000 0x100>;
+		interrupts = <0 146 0>;
+		clocks = <&clock_peri PERI_PCLK_UART0>, <&clock_peri PERI_SCLK_UART0>;
+		clock-names = "uart", "clk_uart_baud0";
+	};
+

drivers/clk/samsung/Makefile

@@ -5,6 +5,7 @@
 obj-$(CONFIG_COMMON_CLK)	+= clk.o clk-pll.o
 obj-$(CONFIG_ARCH_EXYNOS4)	+= clk-exynos4.o
 obj-$(CONFIG_SOC_EXYNOS5250)	+= clk-exynos5250.o
+obj-$(CONFIG_SOC_EXYNOS5260)	+= clk-exynos5260.o
 obj-$(CONFIG_SOC_EXYNOS5420)	+= clk-exynos5420.o
 obj-$(CONFIG_SOC_EXYNOS5440)	+= clk-exynos5440.o
 obj-$(CONFIG_ARCH_EXYNOS)	+= clk-exynos-audss.o

drivers/clk/samsung/clk-exynos4.c

@@ -1043,7 +1043,7 @@ static unsigned long exynos4_get_xom(void)
 	return xom;
 }
 
-static void __init exynos4_clk_register_finpll(void)
+static void __init exynos4_clk_register_finpll(struct samsung_clk_provider *ctx)
 {
 	struct samsung_fixed_rate_clock fclk;
 	struct clk *clk;
@@ -1066,7 +1066,7 @@ static void __init exynos4_clk_register_finpll(void)
 	fclk.parent_name = NULL;
 	fclk.flags = CLK_IS_ROOT;
 	fclk.fixed_rate = finpll_f;
-	samsung_clk_register_fixed_rate(&fclk, 1);
+	samsung_clk_register_fixed_rate(ctx, &fclk, 1);
 
 }
 
@@ -1176,22 +1176,25 @@ static struct samsung_pll_clock exynos4x12_plls[nr_plls] __initdata = {
 static void __init exynos4_clk_init(struct device_node *np,
 				    enum exynos4_soc soc)
 {
+	struct samsung_clk_provider *ctx;
 	exynos4_soc = soc;
 
 	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);
+	ctx = samsung_clk_init(np, reg_base, CLK_NR_CLKS);
+	if (!ctx)
+		panic("%s: unable to allocate context.\n", __func__);
 
-	samsung_clk_of_register_fixed_ext(exynos4_fixed_rate_ext_clks,
+	samsung_clk_of_register_fixed_ext(ctx, exynos4_fixed_rate_ext_clks,
 			ARRAY_SIZE(exynos4_fixed_rate_ext_clks),
 			ext_clk_match);
 
-	exynos4_clk_register_finpll();
+	exynos4_clk_register_finpll(ctx);
 
 	if (exynos4_soc == EXYNOS4210) {
-		samsung_clk_register_mux(exynos4210_mux_early,
+		samsung_clk_register_mux(ctx, exynos4210_mux_early,
 					ARRAY_SIZE(exynos4210_mux_early));
 
 		if (_get_rate("fin_pll") == 24000000) {
@@ -1205,7 +1208,7 @@ static void __init exynos4_clk_init(struct device_node *np,
 			exynos4210_plls[vpll].rate_table =
 							exynos4210_vpll_rates;
 
-		samsung_clk_register_pll(exynos4210_plls,
+		samsung_clk_register_pll(ctx, exynos4210_plls,
 					ARRAY_SIZE(exynos4210_plls), reg_base);
 	} else {
 		if (_get_rate("fin_pll") == 24000000) {
@@ -1217,42 +1220,42 @@ static void __init exynos4_clk_init(struct device_node *np,
 							exynos4x12_vpll_rates;
 		}
 
-		samsung_clk_register_pll(exynos4x12_plls,
+		samsung_clk_register_pll(ctx, exynos4x12_plls,
 					ARRAY_SIZE(exynos4x12_plls), reg_base);
 	}
 
-	samsung_clk_register_fixed_rate(exynos4_fixed_rate_clks,
+	samsung_clk_register_fixed_rate(ctx, exynos4_fixed_rate_clks,
 			ARRAY_SIZE(exynos4_fixed_rate_clks));
-	samsung_clk_register_mux(exynos4_mux_clks,
+	samsung_clk_register_mux(ctx, exynos4_mux_clks,
 			ARRAY_SIZE(exynos4_mux_clks));
-	samsung_clk_register_div(exynos4_div_clks,
+	samsung_clk_register_div(ctx, exynos4_div_clks,
 			ARRAY_SIZE(exynos4_div_clks));
-	samsung_clk_register_gate(exynos4_gate_clks,
+	samsung_clk_register_gate(ctx, exynos4_gate_clks,
 			ARRAY_SIZE(exynos4_gate_clks));
 
 	if (exynos4_soc == EXYNOS4210) {
-		samsung_clk_register_fixed_rate(exynos4210_fixed_rate_clks,
+		samsung_clk_register_fixed_rate(ctx, exynos4210_fixed_rate_clks,
 			ARRAY_SIZE(exynos4210_fixed_rate_clks));
-		samsung_clk_register_mux(exynos4210_mux_clks,
+		samsung_clk_register_mux(ctx, exynos4210_mux_clks,
 			ARRAY_SIZE(exynos4210_mux_clks));
-		samsung_clk_register_div(exynos4210_div_clks,
+		samsung_clk_register_div(ctx, exynos4210_div_clks,
 			ARRAY_SIZE(exynos4210_div_clks));
-		samsung_clk_register_gate(exynos4210_gate_clks,
+		samsung_clk_register_gate(ctx, exynos4210_gate_clks,
 			ARRAY_SIZE(exynos4210_gate_clks));
-		samsung_clk_register_alias(exynos4210_aliases,
+		samsung_clk_register_alias(ctx, exynos4210_aliases,
 			ARRAY_SIZE(exynos4210_aliases));
 	} else {
-		samsung_clk_register_mux(exynos4x12_mux_clks,
+		samsung_clk_register_mux(ctx, exynos4x12_mux_clks,
 			ARRAY_SIZE(exynos4x12_mux_clks));
-		samsung_clk_register_div(exynos4x12_div_clks,
+		samsung_clk_register_div(ctx, exynos4x12_div_clks,
 			ARRAY_SIZE(exynos4x12_div_clks));
-		samsung_clk_register_gate(exynos4x12_gate_clks,
+		samsung_clk_register_gate(ctx, exynos4x12_gate_clks,
 			ARRAY_SIZE(exynos4x12_gate_clks));
-		samsung_clk_register_alias(exynos4x12_aliases,
+		samsung_clk_register_alias(ctx, exynos4x12_aliases,
 			ARRAY_SIZE(exynos4x12_aliases));
 	}
 
-	samsung_clk_register_alias(exynos4_aliases,
+	samsung_clk_register_alias(ctx, exynos4_aliases,
 			ARRAY_SIZE(exynos4_aliases));
 
 	exynos4_clk_sleep_init();

drivers/clk/samsung/clk-exynos5250.c

@@ -686,6 +686,8 @@ static struct of_device_id ext_clk_match[] __initdata = {
 /* register exynox5250 clocks */
 static void __init exynos5250_clk_init(struct device_node *np)
 {
+	struct samsung_clk_provider *ctx;
+
 	if (np) {
 		reg_base = of_iomap(np, 0);
 		if (!reg_base)
@@ -694,11 +696,13 @@ static void __init exynos5250_clk_init(struct device_node *np)
 		panic("%s: unable to determine soc\n", __func__);
 	}
 
-	samsung_clk_init(np, reg_base, CLK_NR_CLKS);
-	samsung_clk_of_register_fixed_ext(exynos5250_fixed_rate_ext_clks,
+	ctx = samsung_clk_init(np, reg_base, CLK_NR_CLKS);
+	if (!ctx)
+		panic("%s: unable to allocate context.\n", __func__);
+	samsung_clk_of_register_fixed_ext(ctx, exynos5250_fixed_rate_ext_clks,
 			ARRAY_SIZE(exynos5250_fixed_rate_ext_clks),
 			ext_clk_match);
-	samsung_clk_register_mux(exynos5250_pll_pmux_clks,
+	samsung_clk_register_mux(ctx, exynos5250_pll_pmux_clks,
 				ARRAY_SIZE(exynos5250_pll_pmux_clks));
 
 	if (_get_rate("fin_pll") == 24 * MHZ) {
@@ -709,17 +713,18 @@ static void __init exynos5250_clk_init(struct device_node *np)
 	if (_get_rate("mout_vpllsrc") == 24 * MHZ)
 		exynos5250_plls[vpll].rate_table =  vpll_24mhz_tbl;
 
-	samsung_clk_register_pll(exynos5250_plls, ARRAY_SIZE(exynos5250_plls),
+	samsung_clk_register_pll(ctx, exynos5250_plls,
+			ARRAY_SIZE(exynos5250_plls),
 			reg_base);
-	samsung_clk_register_fixed_rate(exynos5250_fixed_rate_clks,
+	samsung_clk_register_fixed_rate(ctx, exynos5250_fixed_rate_clks,
 			ARRAY_SIZE(exynos5250_fixed_rate_clks));
-	samsung_clk_register_fixed_factor(exynos5250_fixed_factor_clks,
+	samsung_clk_register_fixed_factor(ctx, exynos5250_fixed_factor_clks,
 			ARRAY_SIZE(exynos5250_fixed_factor_clks));
-	samsung_clk_register_mux(exynos5250_mux_clks,
+	samsung_clk_register_mux(ctx, exynos5250_mux_clks,
 			ARRAY_SIZE(exynos5250_mux_clks));
-	samsung_clk_register_div(exynos5250_div_clks,
+	samsung_clk_register_div(ctx, exynos5250_div_clks,
 			ARRAY_SIZE(exynos5250_div_clks));
-	samsung_clk_register_gate(exynos5250_gate_clks,
+	samsung_clk_register_gate(ctx, exynos5250_gate_clks,
 			ARRAY_SIZE(exynos5250_gate_clks));
 
 	exynos5250_clk_sleep_init();

drivers/clk/samsung/clk-exynos5420.c

@@ -778,6 +778,8 @@ static struct of_device_id ext_clk_match[] __initdata = {
 /* register exynos5420 clocks */
 static void __init exynos5420_clk_init(struct device_node *np)
 {
+	struct samsung_clk_provider *ctx;
+
 	if (np) {
 		reg_base = of_iomap(np, 0);
 		if (!reg_base)
@@ -786,21 +788,25 @@ static void __init exynos5420_clk_init(struct device_node *np)
 		panic("%s: unable to determine soc\n", __func__);
 	}
 
-	samsung_clk_init(np, reg_base, CLK_NR_CLKS);
-	samsung_clk_of_register_fixed_ext(exynos5420_fixed_rate_ext_clks,
+	ctx = samsung_clk_init(np, reg_base, CLK_NR_CLKS);
+	if (!ctx)
+		panic("%s: unable to allocate context.\n", __func__);
+
+	samsung_clk_of_register_fixed_ext(ctx, exynos5420_fixed_rate_ext_clks,
 			ARRAY_SIZE(exynos5420_fixed_rate_ext_clks),
 			ext_clk_match);
-	samsung_clk_register_pll(exynos5420_plls, ARRAY_SIZE(exynos5420_plls),
+	samsung_clk_register_pll(ctx, exynos5420_plls,
+			ARRAY_SIZE(exynos5420_plls),
 			reg_base);
-	samsung_clk_register_fixed_rate(exynos5420_fixed_rate_clks,
+	samsung_clk_register_fixed_rate(ctx, exynos5420_fixed_rate_clks,
 			ARRAY_SIZE(exynos5420_fixed_rate_clks));
-	samsung_clk_register_fixed_factor(exynos5420_fixed_factor_clks,
+	samsung_clk_register_fixed_factor(ctx, exynos5420_fixed_factor_clks,
 			ARRAY_SIZE(exynos5420_fixed_factor_clks));
-	samsung_clk_register_mux(exynos5420_mux_clks,
+	samsung_clk_register_mux(ctx, exynos5420_mux_clks,
 			ARRAY_SIZE(exynos5420_mux_clks));
-	samsung_clk_register_div(exynos5420_div_clks,
+	samsung_clk_register_div(ctx, exynos5420_div_clks,
 			ARRAY_SIZE(exynos5420_div_clks));
-	samsung_clk_register_gate(exynos5420_gate_clks,
+	samsung_clk_register_gate(ctx, exynos5420_gate_clks,
 			ARRAY_SIZE(exynos5420_gate_clks));
 
 	exynos5420_clk_sleep_init();

drivers/clk/samsung/clk-exynos5440.c

@@ -93,6 +93,7 @@ static struct of_device_id ext_clk_match[] __initdata = {
 static void __init exynos5440_clk_init(struct device_node *np)
 {
 	void __iomem *reg_base;
+	struct samsung_clk_provider *ctx;
 
 	reg_base = of_iomap(np, 0);
 	if (!reg_base) {
@@ -101,22 +102,25 @@ static void __init exynos5440_clk_init(struct device_node *np)
 		return;
 	}
 
-	samsung_clk_init(np, reg_base, CLK_NR_CLKS);
-	samsung_clk_of_register_fixed_ext(exynos5440_fixed_rate_ext_clks,
+	ctx = samsung_clk_init(np, reg_base, CLK_NR_CLKS);
+	if (!ctx)
+		panic("%s: unable to allocate context.\n", __func__);
+
+	samsung_clk_of_register_fixed_ext(ctx, exynos5440_fixed_rate_ext_clks,
 		ARRAY_SIZE(exynos5440_fixed_rate_ext_clks), ext_clk_match);
 
 	samsung_clk_register_pll2550x("cplla", "xtal", reg_base + 0x1c, 0x10);
 	samsung_clk_register_pll2550x("cpllb", "xtal", reg_base + 0x20, 0x10);
 
-	samsung_clk_register_fixed_rate(exynos5440_fixed_rate_clks,
+	samsung_clk_register_fixed_rate(ctx, exynos5440_fixed_rate_clks,
 			ARRAY_SIZE(exynos5440_fixed_rate_clks));
-	samsung_clk_register_fixed_factor(exynos5440_fixed_factor_clks,
+	samsung_clk_register_fixed_factor(ctx, exynos5440_fixed_factor_clks,
 			ARRAY_SIZE(exynos5440_fixed_factor_clks));
-	samsung_clk_register_mux(exynos5440_mux_clks,
+	samsung_clk_register_mux(ctx, exynos5440_mux_clks,
 			ARRAY_SIZE(exynos5440_mux_clks));
-	samsung_clk_register_div(exynos5440_div_clks,
+	samsung_clk_register_div(ctx, exynos5440_div_clks,
 			ARRAY_SIZE(exynos5440_div_clks));
-	samsung_clk_register_gate(exynos5440_gate_clks,
+	samsung_clk_register_gate(ctx, exynos5440_gate_clks,
 			ARRAY_SIZE(exynos5440_gate_clks));
 
 	pr_info("Exynos5440: arm_clk = %ldHz\n", _get_rate("arm_clk"));

drivers/clk/samsung/clk-pll.c

@@ -947,7 +947,205 @@ struct clk * __init samsung_clk_register_pll2550x(const char *name,
 	return clk;
 }
 
-static void __init _samsung_clk_register_pll(struct samsung_pll_clock *pll_clk,
+/*
+ * PLL2550xx Clock Type
+ */
+
+/* Maximum lock time can be 270 * PDIV cycles */
+#define PLL2550XX_LOCK_FACTOR 270
+
+#define PLL2550XX_M_MASK		0x3FF
+#define PLL2550XX_P_MASK		0x3F
+#define PLL2550XX_S_MASK		0x7
+#define PLL2550XX_LOCK_STAT_MASK	0x1
+#define PLL2550XX_M_SHIFT		9
+#define PLL2550XX_P_SHIFT		3
+#define PLL2550XX_S_SHIFT		0
+#define PLL2550XX_LOCK_STAT_SHIFT	21
+
+static unsigned long samsung_pll2550xx_recalc_rate(struct clk_hw *hw,
+				unsigned long parent_rate)
+{
+	struct samsung_clk_pll *pll = to_clk_pll(hw);
+	u32 mdiv, pdiv, sdiv, pll_con;
+	u64 fvco = parent_rate;
+
+	pll_con = __raw_readl(pll->con_reg);
+	mdiv = (pll_con >> PLL2550XX_M_SHIFT) & PLL2550XX_M_MASK;
+	pdiv = (pll_con >> PLL2550XX_P_SHIFT) & PLL2550XX_P_MASK;
+	sdiv = (pll_con >> PLL2550XX_S_SHIFT) & PLL2550XX_S_MASK;
+
+	fvco *= mdiv;
+	do_div(fvco, (pdiv << sdiv));
+
+	return (unsigned long)fvco;
+}
+
+static inline bool samsung_pll2550xx_mp_change(u32 mdiv, u32 pdiv, u32 pll_con)
+{
+	u32 old_mdiv, old_pdiv;
+
+	old_mdiv = (pll_con >> PLL2550XX_M_SHIFT) & PLL2550XX_M_MASK;
+	old_pdiv = (pll_con >> PLL2550XX_P_SHIFT) & PLL2550XX_P_MASK;
+
+	return mdiv != old_mdiv || pdiv != old_pdiv;
+}
+
+static int samsung_pll2550xx_set_rate(struct clk_hw *hw, unsigned long drate,
+					unsigned long prate)
+{
+	struct samsung_clk_pll *pll = to_clk_pll(hw);
+	const struct samsung_pll_rate_table *rate;
+	u32 tmp;
+
+	/* Get required rate settings from table */
+	rate = samsung_get_pll_settings(pll, drate);
+	if (!rate) {
+		pr_err("%s: Invalid rate : %lu for pll clk %s\n", __func__,
+			drate, __clk_get_name(hw->clk));
+		return -EINVAL;
+	}
+
+	tmp = __raw_readl(pll->con_reg);
+
+	if (!(samsung_pll2550xx_mp_change(rate->mdiv, rate->pdiv, tmp))) {
+		/* If only s change, change just s value only*/
+		tmp &= ~(PLL2550XX_S_MASK << PLL2550XX_S_SHIFT);
+		tmp |= rate->sdiv << PLL2550XX_S_SHIFT;
+		__raw_writel(tmp, pll->con_reg);
+
+		return 0;
+	}
+
+	/* Set PLL lock time. */
+	__raw_writel(rate->pdiv * PLL2550XX_LOCK_FACTOR, pll->lock_reg);
+
+	/* Change PLL PMS values */
+	tmp &= ~((PLL2550XX_M_MASK << PLL2550XX_M_SHIFT) |
+			(PLL2550XX_P_MASK << PLL2550XX_P_SHIFT) |
+			(PLL2550XX_S_MASK << PLL2550XX_S_SHIFT));
+	tmp |= (rate->mdiv << PLL2550XX_M_SHIFT) |
+			(rate->pdiv << PLL2550XX_P_SHIFT) |
+			(rate->sdiv << PLL2550XX_S_SHIFT);
+	__raw_writel(tmp, pll->con_reg);
+
+	/* wait_lock_time */
+	do {
+		cpu_relax();
+		tmp = __raw_readl(pll->con_reg);
+	} while (!(tmp & (PLL2550XX_LOCK_STAT_MASK
+			<< PLL2550XX_LOCK_STAT_SHIFT)));
+
+	return 0;
+}
+
+static const struct clk_ops samsung_pll2550xx_clk_ops = {
+	.recalc_rate = samsung_pll2550xx_recalc_rate,
+	.round_rate = samsung_pll_round_rate,
+	.set_rate = samsung_pll2550xx_set_rate,
+};
+
+static const struct clk_ops samsung_pll2550xx_clk_min_ops = {
+	.recalc_rate = samsung_pll2550xx_recalc_rate,
+};
+
+/*
+ * PLL2650XX Clock Type
+ */
+
+/* Maximum lock time can be 3000 * PDIV cycles */
+#define PLL2650XX_LOCK_FACTOR 3000
+
+#define PLL2650XX_MDIV_SHIFT		9
+#define PLL2650XX_PDIV_SHIFT		3
+#define PLL2650XX_SDIV_SHIFT		0
+#define PLL2650XX_KDIV_SHIFT		0
+#define PLL2650XX_MDIV_MASK		0x1ff
+#define PLL2650XX_PDIV_MASK		0x3f
+#define PLL2650XX_SDIV_MASK		0x7
+#define PLL2650XX_KDIV_MASK		0xffff
+#define PLL2650XX_PLL_ENABLE_SHIFT	23
+#define PLL2650XX_PLL_LOCKTIME_SHIFT	21
+#define PLL2650XX_PLL_FOUTMASK_SHIFT	31
+
+static unsigned long samsung_pll2650xx_recalc_rate(struct clk_hw *hw,
+				unsigned long parent_rate)
+{
+	struct samsung_clk_pll *pll = to_clk_pll(hw);
+	u32 mdiv, pdiv, sdiv, pll_con0, pll_con2;
+	s16 kdiv;
+	u64 fvco = parent_rate;
+
+	pll_con0 = __raw_readl(pll->con_reg);
+	pll_con2 = __raw_readl(pll->con_reg + 8);
+	mdiv = (pll_con0 >> PLL2650XX_MDIV_SHIFT) & PLL2650XX_MDIV_MASK;
+	pdiv = (pll_con0 >> PLL2650XX_PDIV_SHIFT) & PLL2650XX_PDIV_MASK;
+	sdiv = (pll_con0 >> PLL2650XX_SDIV_SHIFT) & PLL2650XX_SDIV_MASK;
+	kdiv = (s16)(pll_con2 & PLL2650XX_KDIV_MASK);
+
+	fvco *= (mdiv << 16) + kdiv;
+	do_div(fvco, (pdiv << sdiv));
+	fvco >>= 16;
+
+	return (unsigned long)fvco;
+}
+
+static int samsung_pll2650xx_set_rate(struct clk_hw *hw, unsigned long drate,
+					unsigned long parent_rate)
+{
+	struct samsung_clk_pll *pll = to_clk_pll(hw);
+	u32 tmp, pll_con0, pll_con2;
+	const struct samsung_pll_rate_table *rate;
+
+	rate = samsung_get_pll_settings(pll, drate);
+	if (!rate) {
+		pr_err("%s: Invalid rate : %lu for pll clk %s\n", __func__,
+			drate, __clk_get_name(hw->clk));
+		return -EINVAL;
+	}
+
+	pll_con0 = __raw_readl(pll->con_reg);
+	pll_con2 = __raw_readl(pll->con_reg + 8);
+
+	 /* Change PLL PMS values */
+	pll_con0 &= ~(PLL2650XX_MDIV_MASK << PLL2650XX_MDIV_SHIFT |
+			PLL2650XX_PDIV_MASK << PLL2650XX_PDIV_SHIFT |
+			PLL2650XX_SDIV_MASK << PLL2650XX_SDIV_SHIFT);
+	pll_con0 |= rate->mdiv << PLL2650XX_MDIV_SHIFT;
+	pll_con0 |= rate->pdiv << PLL2650XX_PDIV_SHIFT;
+	pll_con0 |= rate->sdiv << PLL2650XX_SDIV_SHIFT;
+	pll_con0 |= 1 << PLL2650XX_PLL_ENABLE_SHIFT;
+	pll_con0 |= 1 << PLL2650XX_PLL_FOUTMASK_SHIFT;
+
+	pll_con2 &= ~(PLL2650XX_KDIV_MASK << PLL2650XX_KDIV_SHIFT);
+	pll_con2 |= ((~(rate->kdiv) + 1) & PLL2650XX_KDIV_MASK)
+			<< PLL2650XX_KDIV_SHIFT;
+
+	/* Set PLL lock time. */
+	__raw_writel(PLL2650XX_LOCK_FACTOR * rate->pdiv, pll->lock_reg);
+
+	__raw_writel(pll_con0, pll->con_reg);
+	__raw_writel(pll_con2, pll->con_reg + 8);
+
+	do {
+		tmp = __raw_readl(pll->con_reg);
+	} while (!(tmp & (0x1 << PLL2650XX_PLL_LOCKTIME_SHIFT)));
+
+	return 0;
+}
+
+static const struct clk_ops samsung_pll2650xx_clk_ops = {
+	.recalc_rate = samsung_pll2650xx_recalc_rate,
+	.set_rate = samsung_pll2650xx_set_rate,
+	.round_rate = samsung_pll_round_rate,
+};
+
+static const struct clk_ops samsung_pll2650xx_clk_min_ops = {
+	.recalc_rate = samsung_pll2650xx_recalc_rate,
+};
+
+static void __init _samsung_clk_register_pll(struct samsung_clk_provider *ctx,
+				struct samsung_pll_clock *pll_clk,
 				void __iomem *base)
 {
 	struct samsung_clk_pll *pll;
@@ -1048,6 +1246,18 @@ static void __init _samsung_clk_register_pll(struct samsung_pll_clock *pll_clk,
 		else
 			init.ops = &samsung_s3c2440_mpll_clk_ops;
 		break;
+	case pll_2550xx:
+		if (!pll->rate_table)
+			init.ops = &samsung_pll2550xx_clk_min_ops;
+		else
+			init.ops = &samsung_pll2550xx_clk_ops;
+		break;
+	case pll_2650xx:
+		if (!pll->rate_table)
+			init.ops = &samsung_pll2650xx_clk_min_ops;
+		else
+			init.ops = &samsung_pll2650xx_clk_ops;
+		break;
 	default:
 		pr_warn("%s: Unknown pll type for pll clk %s\n",
 			__func__, pll_clk->name);
@@ -1066,7 +1276,7 @@ static void __init _samsung_clk_register_pll(struct samsung_pll_clock *pll_clk,
 		return;
 	}
 
-	samsung_clk_add_lookup(clk, pll_clk->id);
+	samsung_clk_add_lookup(ctx, clk, pll_clk->id);
 
 	if (!pll_clk->alias)
 		return;
@@ -1077,11 +1287,12 @@ static void __init _samsung_clk_register_pll(struct samsung_pll_clock *pll_clk,
 			__func__, pll_clk->name, ret);
 }
 
-void __init samsung_clk_register_pll(struct samsung_pll_clock *pll_list,
+void __init samsung_clk_register_pll(struct samsung_clk_provider *ctx,
+			struct samsung_pll_clock *pll_list,
 			unsigned int nr_pll, void __iomem *base)
 {
 	int cnt;
 
 	for (cnt = 0; cnt < nr_pll; cnt++)
-		_samsung_clk_register_pll(&pll_list[cnt], base);
+		_samsung_clk_register_pll(ctx, &pll_list[cnt], base);
 }

drivers/clk/samsung/clk-pll.h

@@ -31,6 +31,8 @@ enum samsung_pll_type {
 	pll_s3c2410_mpll,
 	pll_s3c2410_upll,
 	pll_s3c2440_mpll,
+	pll_2550xx,
+	pll_2650xx,
 };
 
 #define PLL_35XX_RATE(_rate, _m, _p, _s)			\

drivers/clk/samsung/clk-s3c2410.c

@@ -344,21 +344,24 @@ struct samsung_fixed_rate_clock s3c2410_common_frate_clks[] __initdata = {
 	FRATE(XTI, "xti", NULL, CLK_IS_ROOT, 0),
 };
 
-static void __init s3c2410_common_clk_register_fixed_ext(unsigned long xti_f)
+static void __init s3c2410_common_clk_register_fixed_ext(
+		struct samsung_clk_provider *ctx,
+		unsigned long xti_f)
 {
 	struct samsung_clock_alias xti_alias = ALIAS(XTI, NULL, "xtal");
 
 	s3c2410_common_frate_clks[0].fixed_rate = xti_f;
-	samsung_clk_register_fixed_rate(s3c2410_common_frate_clks,
+	samsung_clk_register_fixed_rate(ctx, s3c2410_common_frate_clks,
 				ARRAY_SIZE(s3c2410_common_frate_clks));
 
-	samsung_clk_register_alias(&xti_alias, 1);
+	samsung_clk_register_alias(ctx, &xti_alias, 1);
 }
 
 void __init s3c2410_common_clk_init(struct device_node *np, unsigned long xti_f,
 				    int current_soc,
 				    void __iomem *base)
 {
+	struct samsung_clk_provider *ctx;
 	reg_base = base;
 
 	if (np) {
@@ -367,11 +370,13 @@ void __init s3c2410_common_clk_init(struct device_node *np, unsigned long xti_f,
 			panic("%s: failed to map registers\n", __func__);
 	}
 
-	samsung_clk_init(np, reg_base, NR_CLKS);
+	ctx = samsung_clk_init(np, reg_base, NR_CLKS);
+	if (!ctx)
+		panic("%s: unable to allocate context.\n", __func__);
 
 	/* Register external clocks only in non-dt cases */
 	if (!np)
-		s3c2410_common_clk_register_fixed_ext(xti_f);
+		s3c2410_common_clk_register_fixed_ext(ctx, xti_f);
 
 	if (current_soc == 2410) {
 		if (_get_rate("xti") == 12 * MHZ) {
@@ -380,7 +385,7 @@ void __init s3c2410_common_clk_init(struct device_node *np, unsigned long xti_f,
 		}
 
 		/* Register PLLs. */
-		samsung_clk_register_pll(s3c2410_plls,
+		samsung_clk_register_pll(ctx, s3c2410_plls,
 				ARRAY_SIZE(s3c2410_plls), reg_base);
 
 	} else { /* S3C2440, S3C2442 */
@@ -396,49 +401,49 @@ void __init s3c2410_common_clk_init(struct device_node *np, unsigned long xti_f,
 		}
 
 		/* Register PLLs. */
-		samsung_clk_register_pll(s3c244x_common_plls,
+		samsung_clk_register_pll(ctx, s3c244x_common_plls,
 				ARRAY_SIZE(s3c244x_common_plls), reg_base);
 	}
 
 	/* Register common internal clocks. */
-	samsung_clk_register_mux(s3c2410_common_muxes,
+	samsung_clk_register_mux(ctx, s3c2410_common_muxes,
 			ARRAY_SIZE(s3c2410_common_muxes));
-	samsung_clk_register_div(s3c2410_common_dividers,
+	samsung_clk_register_div(ctx, s3c2410_common_dividers,
 			ARRAY_SIZE(s3c2410_common_dividers));
-	samsung_clk_register_gate(s3c2410_common_gates,
+	samsung_clk_register_gate(ctx, s3c2410_common_gates,
 		ARRAY_SIZE(s3c2410_common_gates));
 
 	if (current_soc == S3C2440 || current_soc == S3C2442) {
-		samsung_clk_register_div(s3c244x_common_dividers,
+		samsung_clk_register_div(ctx, s3c244x_common_dividers,
 				ARRAY_SIZE(s3c244x_common_dividers));
-		samsung_clk_register_gate(s3c244x_common_gates,
+		samsung_clk_register_gate(ctx, s3c244x_common_gates,
 				ARRAY_SIZE(s3c244x_common_gates));
-		samsung_clk_register_mux(s3c244x_common_muxes,
+		samsung_clk_register_mux(ctx, s3c244x_common_muxes,
 				ARRAY_SIZE(s3c244x_common_muxes));
-		samsung_clk_register_fixed_factor(s3c244x_common_ffactor,
+		samsung_clk_register_fixed_factor(ctx, s3c244x_common_ffactor,
 				ARRAY_SIZE(s3c244x_common_ffactor));
 	}
 
 	/* Register SoC-specific clocks. */
 	switch (current_soc) {
 	case S3C2410:
-		samsung_clk_register_div(s3c2410_dividers,
+		samsung_clk_register_div(ctx, s3c2410_dividers,
 				ARRAY_SIZE(s3c2410_dividers));
-		samsung_clk_register_fixed_factor(s3c2410_ffactor,
+		samsung_clk_register_fixed_factor(ctx, s3c2410_ffactor,
 				ARRAY_SIZE(s3c2410_ffactor));
-		samsung_clk_register_alias(s3c2410_aliases,
+		samsung_clk_register_alias(ctx, s3c2410_aliases,
 			ARRAY_SIZE(s3c2410_common_aliases));
 		break;
 	case S3C2440:
-		samsung_clk_register_mux(s3c2440_muxes,
+		samsung_clk_register_mux(ctx, s3c2440_muxes,
 				ARRAY_SIZE(s3c2440_muxes));
-		samsung_clk_register_gate(s3c2440_gates,
+		samsung_clk_register_gate(ctx, s3c2440_gates,
 				ARRAY_SIZE(s3c2440_gates));
 		break;
 	case S3C2442:
-		samsung_clk_register_mux(s3c2442_muxes,
+		samsung_clk_register_mux(ctx, s3c2442_muxes,
 				ARRAY_SIZE(s3c2442_muxes));
-		samsung_clk_register_fixed_factor(s3c2442_ffactor,
+		samsung_clk_register_fixed_factor(ctx, s3c2442_ffactor,
 				ARRAY_SIZE(s3c2442_ffactor));
 		break;
 	}
@@ -447,11 +452,11 @@ void __init s3c2410_common_clk_init(struct device_node *np, unsigned long xti_f,
 	 * Register common aliases at the end, as some of the aliased clocks
 	 * are SoC specific.
 	 */
-	samsung_clk_register_alias(s3c2410_common_aliases,
+	samsung_clk_register_alias(ctx, s3c2410_common_aliases,
 		ARRAY_SIZE(s3c2410_common_aliases));
 
 	if (current_soc == S3C2440 || current_soc == S3C2442) {
-		samsung_clk_register_alias(s3c244x_common_aliases,
+		samsung_clk_register_alias(ctx, s3c244x_common_aliases,
 			ARRAY_SIZE(s3c244x_common_aliases));
 	}
 

drivers/clk/samsung/clk-s3c2412.c

@@ -214,23 +214,25 @@ struct samsung_fixed_rate_clock s3c2412_common_frate_clks[] __initdata = {
 	FRATE(0, "ext", NULL, CLK_IS_ROOT, 0),
 };
 
-static void __init s3c2412_common_clk_register_fixed_ext(unsigned long xti_f,
-							 unsigned long ext_f)
+static void __init s3c2412_common_clk_register_fixed_ext(
+		struct samsung_clk_provider *ctx,
+		unsigned long xti_f, unsigned long ext_f)
 {
 	/* xtal alias is necessary for the current cpufreq driver */
 	struct samsung_clock_alias xti_alias = ALIAS(XTI, NULL, "xtal");
 
 	s3c2412_common_frate_clks[0].fixed_rate = xti_f;
 	s3c2412_common_frate_clks[1].fixed_rate = ext_f;
-	samsung_clk_register_fixed_rate(s3c2412_common_frate_clks,
+	samsung_clk_register_fixed_rate(ctx, s3c2412_common_frate_clks,
 				ARRAY_SIZE(s3c2412_common_frate_clks));
 
-	samsung_clk_register_alias(&xti_alias, 1);
+	samsung_clk_register_alias(ctx, &xti_alias, 1);
 }
 
 void __init s3c2412_common_clk_init(struct device_node *np, unsigned long xti_f,
 				    unsigned long ext_f, void __iomem *base)
 {
+	struct samsung_clk_provider *ctx;
 	reg_base = base;
 
 	if (np) {
@@ -239,24 +241,27 @@ void __init s3c2412_common_clk_init(struct device_node *np, unsigned long xti_f,
 			panic("%s: failed to map registers\n", __func__);
 	}
 
-	samsung_clk_init(np, reg_base, NR_CLKS);
+	ctx = samsung_clk_init(np, reg_base, NR_CLKS);
+	if (!ctx)
+		panic("%s: unable to allocate context.\n", __func__);
 
 	/* Register external clocks only in non-dt cases */
 	if (!np)
-		s3c2412_common_clk_register_fixed_ext(xti_f, ext_f);
+		s3c2412_common_clk_register_fixed_ext(ctx, xti_f, ext_f);
 
 	/* Register PLLs. */
-	samsung_clk_register_pll(s3c2412_plls, ARRAY_SIZE(s3c2412_plls),
+	samsung_clk_register_pll(ctx, s3c2412_plls, ARRAY_SIZE(s3c2412_plls),
 				 reg_base);
 
 	/* Register common internal clocks. */
-	samsung_clk_register_mux(s3c2412_muxes, ARRAY_SIZE(s3c2412_muxes));
-	samsung_clk_register_div(s3c2412_dividers,
+	samsung_clk_register_mux(ctx, s3c2412_muxes, ARRAY_SIZE(s3c2412_muxes));
+	samsung_clk_register_div(ctx, s3c2412_dividers,
 					  ARRAY_SIZE(s3c2412_dividers));
-	samsung_clk_register_gate(s3c2412_gates, ARRAY_SIZE(s3c2412_gates));
-	samsung_clk_register_fixed_factor(s3c2412_ffactor,
+	samsung_clk_register_gate(ctx, s3c2412_gates,
+					ARRAY_SIZE(s3c2412_gates));
+	samsung_clk_register_fixed_factor(ctx, s3c2412_ffactor,
 					  ARRAY_SIZE(s3c2412_ffactor));
-	samsung_clk_register_alias(s3c2412_aliases,
+	samsung_clk_register_alias(ctx, s3c2412_aliases,
 				   ARRAY_SIZE(s3c2412_aliases));
 
 	s3c2412_clk_sleep_init();

drivers/clk/samsung/clk-s3c2443.c

@@ -365,10 +365,11 @@ struct samsung_fixed_rate_clock s3c2443_common_frate_clks[] __initdata = {
 	FRATE(0, "ext_uart", NULL, CLK_IS_ROOT, 0),
 };
 
-static void __init s3c2443_common_clk_register_fixed_ext(unsigned long xti_f)
+static void __init s3c2443_common_clk_register_fixed_ext(
+		struct samsung_clk_provider *ctx, unsigned long xti_f)
 {
 	s3c2443_common_frate_clks[0].fixed_rate = xti_f;
-	samsung_clk_register_fixed_rate(s3c2443_common_frate_clks,
+	samsung_clk_register_fixed_rate(ctx, s3c2443_common_frate_clks,
 				ARRAY_SIZE(s3c2443_common_frate_clks));
 }
 
@@ -376,6 +377,7 @@ void __init s3c2443_common_clk_init(struct device_node *np, unsigned long xti_f,
 				    int current_soc,
 				    void __iomem *base)
 {
+	struct samsung_clk_provider *ctx;
 	reg_base = base;
 
 	if (np) {
@@ -384,58 +386,60 @@ void __init s3c2443_common_clk_init(struct device_node *np, unsigned long xti_f,
 			panic("%s: failed to map registers\n", __func__);
 	}
 
-	samsung_clk_init(np, reg_base, NR_CLKS);
+	ctx = samsung_clk_init(np, reg_base, NR_CLKS);
+	if (!ctx)
+		panic("%s: unable to allocate context.\n", __func__);
 
 	/* Register external clocks only in non-dt cases */
 	if (!np)
-		s3c2443_common_clk_register_fixed_ext(xti_f);
+		s3c2443_common_clk_register_fixed_ext(ctx, xti_f);
 
 	/* Register PLLs. */
 	if (current_soc == S3C2416 || current_soc == S3C2450)
-		samsung_clk_register_pll(s3c2416_pll_clks,
+		samsung_clk_register_pll(ctx, s3c2416_pll_clks,
 				ARRAY_SIZE(s3c2416_pll_clks), reg_base);
 	else
-		samsung_clk_register_pll(s3c2443_pll_clks,
+		samsung_clk_register_pll(ctx, s3c2443_pll_clks,
 				ARRAY_SIZE(s3c2443_pll_clks), reg_base);
 
 	/* Register common internal clocks. */
-	samsung_clk_register_mux(s3c2443_common_muxes,
+	samsung_clk_register_mux(ctx, s3c2443_common_muxes,
 			ARRAY_SIZE(s3c2443_common_muxes));
-	samsung_clk_register_div(s3c2443_common_dividers,
+	samsung_clk_register_div(ctx, s3c2443_common_dividers,
 			ARRAY_SIZE(s3c2443_common_dividers));
-	samsung_clk_register_gate(s3c2443_common_gates,
+	samsung_clk_register_gate(ctx, s3c2443_common_gates,
 		ARRAY_SIZE(s3c2443_common_gates));
-	samsung_clk_register_alias(s3c2443_common_aliases,
+	samsung_clk_register_alias(ctx, s3c2443_common_aliases,
 		ARRAY_SIZE(s3c2443_common_aliases));
 
 	/* Register SoC-specific clocks. */
 	switch (current_soc) {
 	case S3C2450:
-		samsung_clk_register_div(s3c2450_dividers,
+		samsung_clk_register_div(ctx, s3c2450_dividers,
 				ARRAY_SIZE(s3c2450_dividers));
-		samsung_clk_register_mux(s3c2450_muxes,
+		samsung_clk_register_mux(ctx, s3c2450_muxes,
 				ARRAY_SIZE(s3c2450_muxes));
-		samsung_clk_register_gate(s3c2450_gates,
+		samsung_clk_register_gate(ctx, s3c2450_gates,
 				ARRAY_SIZE(s3c2450_gates));
-		samsung_clk_register_alias(s3c2450_aliases,
+		samsung_clk_register_alias(ctx, s3c2450_aliases,
 				ARRAY_SIZE(s3c2450_aliases));
 		/* fall through, as s3c2450 extends the s3c2416 clocks */
 	case S3C2416:
-		samsung_clk_register_div(s3c2416_dividers,
+		samsung_clk_register_div(ctx, s3c2416_dividers,
 				ARRAY_SIZE(s3c2416_dividers));
-		samsung_clk_register_mux(s3c2416_muxes,
+		samsung_clk_register_mux(ctx, s3c2416_muxes,
 				ARRAY_SIZE(s3c2416_muxes));
-		samsung_clk_register_gate(s3c2416_gates,
+		samsung_clk_register_gate(ctx, s3c2416_gates,
 				ARRAY_SIZE(s3c2416_gates));
-		samsung_clk_register_alias(s3c2416_aliases,
+		samsung_clk_register_alias(ctx, s3c2416_aliases,
 				ARRAY_SIZE(s3c2416_aliases));
 		break;
 	case S3C2443:
-		samsung_clk_register_div(s3c2443_dividers,
+		samsung_clk_register_div(ctx, s3c2443_dividers,
 				ARRAY_SIZE(s3c2443_dividers));
-		samsung_clk_register_gate(s3c2443_gates,
+		samsung_clk_register_gate(ctx, s3c2443_gates,
 				ARRAY_SIZE(s3c2443_gates));
-		samsung_clk_register_alias(s3c2443_aliases,
+		samsung_clk_register_alias(ctx, s3c2443_aliases,
 				ARRAY_SIZE(s3c2443_aliases));
 		break;
 	}

drivers/clk/samsung/clk-s3c64xx.c

@@ -442,12 +442,14 @@ static struct samsung_clock_alias s3c6410_clock_aliases[] = {
 	ALIAS(MEM0_SROM, NULL, "srom"),
 };
 
-static void __init s3c64xx_clk_register_fixed_ext(unsigned long fin_pll_f,
+static void __init s3c64xx_clk_register_fixed_ext(
+				struct samsung_clk_provider *ctx,
+				unsigned long fin_pll_f,
 				unsigned long xusbxti_f)
 {
 	s3c64xx_fixed_rate_ext_clks[0].fixed_rate = fin_pll_f;
 	s3c64xx_fixed_rate_ext_clks[1].fixed_rate = xusbxti_f;
-	samsung_clk_register_fixed_rate(s3c64xx_fixed_rate_ext_clks,
+	samsung_clk_register_fixed_rate(ctx, s3c64xx_fixed_rate_ext_clks,
 				ARRAY_SIZE(s3c64xx_fixed_rate_ext_clks));
 }
 
@@ -456,6 +458,8 @@ void __init s3c64xx_clk_init(struct device_node *np, unsigned long xtal_f,
 			     unsigned long xusbxti_f, bool s3c6400,
 			     void __iomem *base)
 {
+	struct samsung_clk_provider *ctx;
+
 	reg_base = base;
 	is_s3c6400 = s3c6400;
 
@@ -465,48 +469,50 @@ void __init s3c64xx_clk_init(struct device_node *np, unsigned long xtal_f,
 			panic("%s: failed to map registers\n", __func__);
 	}
 
-	samsung_clk_init(np, reg_base, NR_CLKS);
+	ctx = samsung_clk_init(np, reg_base, NR_CLKS);
+	if (!ctx)
+		panic("%s: unable to allocate context.\n", __func__);
 
 	/* Register external clocks. */
 	if (!np)
-		s3c64xx_clk_register_fixed_ext(xtal_f, xusbxti_f);
+		s3c64xx_clk_register_fixed_ext(ctx, xtal_f, xusbxti_f);
 
 	/* Register PLLs. */
-	samsung_clk_register_pll(s3c64xx_pll_clks,
+	samsung_clk_register_pll(ctx, s3c64xx_pll_clks,
 				ARRAY_SIZE(s3c64xx_pll_clks), reg_base);
 
 	/* Register common internal clocks. */
-	samsung_clk_register_fixed_rate(s3c64xx_fixed_rate_clks,
+	samsung_clk_register_fixed_rate(ctx, s3c64xx_fixed_rate_clks,
 					ARRAY_SIZE(s3c64xx_fixed_rate_clks));
-	samsung_clk_register_mux(s3c64xx_mux_clks,
+	samsung_clk_register_mux(ctx, s3c64xx_mux_clks,
 					ARRAY_SIZE(s3c64xx_mux_clks));
-	samsung_clk_register_div(s3c64xx_div_clks,
+	samsung_clk_register_div(ctx, s3c64xx_div_clks,
 					ARRAY_SIZE(s3c64xx_div_clks));
-	samsung_clk_register_gate(s3c64xx_gate_clks,
+	samsung_clk_register_gate(ctx, s3c64xx_gate_clks,
 					ARRAY_SIZE(s3c64xx_gate_clks));
 
 	/* Register SoC-specific clocks. */
 	if (is_s3c6400) {
-		samsung_clk_register_mux(s3c6400_mux_clks,
+		samsung_clk_register_mux(ctx, s3c6400_mux_clks,
 					ARRAY_SIZE(s3c6400_mux_clks));
-		samsung_clk_register_div(s3c6400_div_clks,
+		samsung_clk_register_div(ctx, s3c6400_div_clks,
 					ARRAY_SIZE(s3c6400_div_clks));
-		samsung_clk_register_gate(s3c6400_gate_clks,
+		samsung_clk_register_gate(ctx, s3c6400_gate_clks,
 					ARRAY_SIZE(s3c6400_gate_clks));
-		samsung_clk_register_alias(s3c6400_clock_aliases,
+		samsung_clk_register_alias(ctx, s3c6400_clock_aliases,
 					ARRAY_SIZE(s3c6400_clock_aliases));
 	} else {
-		samsung_clk_register_mux(s3c6410_mux_clks,
+		samsung_clk_register_mux(ctx, s3c6410_mux_clks,
 					ARRAY_SIZE(s3c6410_mux_clks));
-		samsung_clk_register_div(s3c6410_div_clks,
+		samsung_clk_register_div(ctx, s3c6410_div_clks,
 					ARRAY_SIZE(s3c6410_div_clks));
-		samsung_clk_register_gate(s3c6410_gate_clks,
+		samsung_clk_register_gate(ctx, s3c6410_gate_clks,
 					ARRAY_SIZE(s3c6410_gate_clks));
-		samsung_clk_register_alias(s3c6410_clock_aliases,
+		samsung_clk_register_alias(ctx, s3c6410_clock_aliases,
 					ARRAY_SIZE(s3c6410_clock_aliases));
 	}
 
-	samsung_clk_register_alias(s3c64xx_clock_aliases,
+	samsung_clk_register_alias(ctx, s3c64xx_clock_aliases,
 					ARRAY_SIZE(s3c64xx_clock_aliases));
 	s3c64xx_clk_sleep_init();
 

drivers/clk/samsung/clk.c

@@ -14,13 +14,6 @@
 #include <linux/syscore_ops.h>
 #include "clk.h"
 
-static DEFINE_SPINLOCK(lock);
-static struct clk **clk_table;
-static void __iomem *reg_base;
-#ifdef CONFIG_OF
-static struct clk_onecell_data clk_data;
-#endif
-
 void samsung_clk_save(void __iomem *base,
 				    struct samsung_clk_reg_dump *rd,
 				    unsigned int num_regs)
@@ -55,40 +48,53 @@ struct samsung_clk_reg_dump *samsung_clk_alloc_reg_dump(
 }
 
 /* setup the essentials required to support clock lookup using ccf */
-void __init samsung_clk_init(struct device_node *np, void __iomem *base,
-			     unsigned long nr_clks)
+struct samsung_clk_provider *__init samsung_clk_init(struct device_node *np,
+			void __iomem *base, unsigned long nr_clks)
 {
-	reg_base = base;
+	struct samsung_clk_provider *ctx;
+	struct clk **clk_table;
+	int ret;
+	ctx = kzalloc(sizeof(struct samsung_clk_provider), GFP_KERNEL);
+	if (!ctx)
+		panic("could not allocate clock provider context.\n");
 
 	clk_table = kzalloc(sizeof(struct clk *) * nr_clks, GFP_KERNEL);
 	if (!clk_table)
 		panic("could not allocate clock lookup table\n");
 
+	ctx->reg_base = base;
+	ctx->clk_data.clks = clk_table;
+	ctx->clk_data.clk_num = nr_clks;
+	spin_lock_init(&ctx->lock);
+
 	if (!np)
-		return;
+		return ctx;
 
-#ifdef CONFIG_OF
-	clk_data.clks = clk_table;
-	clk_data.clk_num = nr_clks;
-	of_clk_add_provider(np, of_clk_src_onecell_get, &clk_data);
-#endif
+	ret = of_clk_add_provider(np, of_clk_src_onecell_get,
+			&ctx->clk_data);
+	if (ret)
+		panic("could not register clock provide\n");
+
+	return ctx;
 }
 
 /* add a clock instance to the clock lookup table used for dt based lookup */
-void samsung_clk_add_lookup(struct clk *clk, unsigned int id)
+void samsung_clk_add_lookup(struct samsung_clk_provider *ctx, struct clk *clk,
+				unsigned int id)
 {
-	if (clk_table && id)
-		clk_table[id] = clk;
+	if (ctx->clk_data.clks && id)
+		ctx->clk_data.clks[id] = clk;
 }
 
 /* register a list of aliases */
-void __init samsung_clk_register_alias(struct samsung_clock_alias *list,
+void __init samsung_clk_register_alias(struct samsung_clk_provider *ctx,
+				struct samsung_clock_alias *list,
 				unsigned int nr_clk)
 {
 	struct clk *clk;
 	unsigned int idx, ret;
 
-	if (!clk_table) {
+	if (!ctx->clk_data.clks) {
 		pr_err("%s: clock table missing\n", __func__);
 		return;
 	}
@@ -100,7 +106,7 @@ void __init samsung_clk_register_alias(struct samsung_clock_alias *list,
 			continue;
 		}
 
-		clk = clk_table[list->id];
+		clk = ctx->clk_data.clks[list->id];
 		if (!clk) {
 			pr_err("%s: failed to find clock %d\n", __func__,
 				list->id);
@@ -115,7 +121,7 @@ void __init samsung_clk_register_alias(struct samsung_clock_alias *list,
 }
 
 /* register a list of fixed clocks */
-void __init samsung_clk_register_fixed_rate(
+void __init samsung_clk_register_fixed_rate(struct samsung_clk_provider *ctx,
 		struct samsung_fixed_rate_clock *list, unsigned int nr_clk)
 {
 	struct clk *clk;
@@ -130,7 +136,7 @@ void __init samsung_clk_register_fixed_rate(
 			continue;
 		}
 
-		samsung_clk_add_lookup(clk, list->id);
+		samsung_clk_add_lookup(ctx, clk, list->id);
 
 		/*
 		 * Unconditionally add a clock lookup for the fixed rate clocks.
@@ -144,7 +150,7 @@ void __init samsung_clk_register_fixed_rate(
 }
 
 /* register a list of fixed factor clocks */
-void __init samsung_clk_register_fixed_factor(
+void __init samsung_clk_register_fixed_factor(struct samsung_clk_provider *ctx,
 		struct samsung_fixed_factor_clock *list, unsigned int nr_clk)
 {
 	struct clk *clk;
@@ -159,12 +165,13 @@ void __init samsung_clk_register_fixed_factor(
 			continue;
 		}
 
-		samsung_clk_add_lookup(clk, list->id);
+		samsung_clk_add_lookup(ctx, clk, list->id);
 	}
 }
 
 /* register a list of mux clocks */
-void __init samsung_clk_register_mux(struct samsung_mux_clock *list,
+void __init samsung_clk_register_mux(struct samsung_clk_provider *ctx,
+				struct samsung_mux_clock *list,
 				unsigned int nr_clk)
 {
 	struct clk *clk;
@@ -172,15 +179,16 @@ void __init samsung_clk_register_mux(struct samsung_mux_clock *list,
 
 	for (idx = 0; idx < nr_clk; idx++, list++) {
 		clk = clk_register_mux(NULL, list->name, list->parent_names,
-			list->num_parents, list->flags, reg_base + list->offset,
-			list->shift, list->width, list->mux_flags, &lock);
+			list->num_parents, list->flags,
+			ctx->reg_base + list->offset,
+			list->shift, list->width, list->mux_flags, &ctx->lock);
 		if (IS_ERR(clk)) {
 			pr_err("%s: failed to register clock %s\n", __func__,
 				list->name);
 			continue;
 		}
 
-		samsung_clk_add_lookup(clk, list->id);
+		samsung_clk_add_lookup(ctx, clk, list->id);
 
 		/* register a clock lookup only if a clock alias is specified */
 		if (list->alias) {
@@ -194,7 +202,8 @@ void __init samsung_clk_register_mux(struct samsung_mux_clock *list,
 }
 
 /* register a list of div clocks */
-void __init samsung_clk_register_div(struct samsung_div_clock *list,
+void __init samsung_clk_register_div(struct samsung_clk_provider *ctx,
+				struct samsung_div_clock *list,
 				unsigned int nr_clk)
 {
 	struct clk *clk;
@@ -204,21 +213,21 @@ void __init samsung_clk_register_div(struct samsung_div_clock *list,
 		if (list->table)
 			clk = clk_register_divider_table(NULL, list->name,
 				list->parent_name, list->flags,
-					reg_base + list->offset, list->shift,
-					list->width, list->div_flags,
-					list->table, &lock);
+				ctx->reg_base + list->offset,
+				list->shift, list->width, list->div_flags,
+				list->table, &ctx->lock);
 		else
 			clk = clk_register_divider(NULL, list->name,
 				list->parent_name, list->flags,
-					reg_base + list->offset, list->shift,
-					list->width, list->div_flags, &lock);
+				ctx->reg_base + list->offset, list->shift,
+				list->width, list->div_flags, &ctx->lock);
 		if (IS_ERR(clk)) {
 			pr_err("%s: failed to register clock %s\n", __func__,
 				list->name);
 			continue;
 		}
 
-		samsung_clk_add_lookup(clk, list->id);
+		samsung_clk_add_lookup(ctx, clk, list->id);
 
 		/* register a clock lookup only if a clock alias is specified */
 		if (list->alias) {
@@ -232,7 +241,8 @@ void __init samsung_clk_register_div(struct samsung_div_clock *list,
 }
 
 /* register a list of gate clocks */
-void __init samsung_clk_register_gate(struct samsung_gate_clock *list,
+void __init samsung_clk_register_gate(struct samsung_clk_provider *ctx,
+				struct samsung_gate_clock *list,
 				unsigned int nr_clk)
 {
 	struct clk *clk;
@@ -240,8 +250,8 @@ void __init samsung_clk_register_gate(struct samsung_gate_clock *list,
 
 	for (idx = 0; idx < nr_clk; idx++, list++) {
 		clk = clk_register_gate(NULL, list->name, list->parent_name,
-				list->flags, reg_base + list->offset,
-				list->bit_idx, list->gate_flags, &lock);
+				list->flags, ctx->reg_base + list->offset,
+				list->bit_idx, list->gate_flags, &ctx->lock);
 		if (IS_ERR(clk)) {
 			pr_err("%s: failed to register clock %s\n", __func__,
 				list->name);
@@ -257,7 +267,7 @@ void __init samsung_clk_register_gate(struct samsung_gate_clock *list,
 					__func__, list->alias);
 		}
 
-		samsung_clk_add_lookup(clk, list->id);
+		samsung_clk_add_lookup(ctx, clk, list->id);
 	}
 }
 
@@ -266,21 +276,21 @@ void __init samsung_clk_register_gate(struct samsung_gate_clock *list,
  * tree and register it
  */
 #ifdef CONFIG_OF
-void __init samsung_clk_of_register_fixed_ext(
+void __init samsung_clk_of_register_fixed_ext(struct samsung_clk_provider *ctx,
 			struct samsung_fixed_rate_clock *fixed_rate_clk,
 			unsigned int nr_fixed_rate_clk,
 			struct of_device_id *clk_matches)
 {
 	const struct of_device_id *match;
-	struct device_node *np;
+	struct device_node *clk_np;
 	u32 freq;
 
-	for_each_matching_node_and_match(np, clk_matches, &match) {
-		if (of_property_read_u32(np, "clock-frequency", &freq))
+	for_each_matching_node_and_match(clk_np, clk_matches, &match) {
+		if (of_property_read_u32(clk_np, "clock-frequency", &freq))
 			continue;
 		fixed_rate_clk[(u32)match->data].fixed_rate = freq;
 	}
-	samsung_clk_register_fixed_rate(fixed_rate_clk, nr_fixed_rate_clk);
+	samsung_clk_register_fixed_rate(ctx, fixed_rate_clk, nr_fixed_rate_clk);
 }
 #endif
 

drivers/clk/samsung/clk.h

@@ -21,6 +21,18 @@
 #include <linux/of_address.h>
 #include "clk-pll.h"
 
+/**
+ * struct samsung_clk_provider: information about clock provider
+ * @reg_base: virtual address for the register base.
+ * @clk_data: holds clock related data like clk* and number of clocks.
+ * @lock: maintains exclusion bwtween callbacks for a given clock-provider.
+ */
+struct samsung_clk_provider {
+	void __iomem *reg_base;
+	struct clk_onecell_data clk_data;
+	spinlock_t lock;
+};
+
 /**
  * struct samsung_clock_alias: information about mux clock
  * @id: platform specific id of the clock.
@@ -312,28 +324,40 @@ struct samsung_pll_clock {
 	__PLL(_typ, _id, NULL, _name, _pname, CLK_GET_RATE_NOCACHE,	\
 		_lock, _con, _rtable, _alias)
 
-extern void __init samsung_clk_init(struct device_node *np, void __iomem *base,
+extern struct samsung_clk_provider *__init samsung_clk_init(
+			struct device_node *np, void __iomem *base,
 			unsigned long nr_clks);
 extern void __init samsung_clk_of_register_fixed_ext(
+			struct samsung_clk_provider *ctx,
 			struct samsung_fixed_rate_clock *fixed_rate_clk,
 			unsigned int nr_fixed_rate_clk,
 			struct of_device_id *clk_matches);
 
-extern void samsung_clk_add_lookup(struct clk *clk, unsigned int id);
+extern void samsung_clk_add_lookup(struct samsung_clk_provider *ctx,
+			struct clk *clk, unsigned int id);
 
-extern void samsung_clk_register_alias(struct samsung_clock_alias *list,
+extern void samsung_clk_register_alias(struct samsung_clk_provider *ctx,
+			struct samsung_clock_alias *list,
 			unsigned int nr_clk);
 extern void __init samsung_clk_register_fixed_rate(
-		struct samsung_fixed_rate_clock *clk_list, unsigned int nr_clk);
+			struct samsung_clk_provider *ctx,
+			struct samsung_fixed_rate_clock *clk_list,
+			unsigned int nr_clk);
 extern void __init samsung_clk_register_fixed_factor(
-		struct samsung_fixed_factor_clock *list, unsigned int nr_clk);
-extern void __init samsung_clk_register_mux(struct samsung_mux_clock *clk_list,
+			struct samsung_clk_provider *ctx,
+			struct samsung_fixed_factor_clock *list,
+			unsigned int nr_clk);
+extern void __init samsung_clk_register_mux(struct samsung_clk_provider *ctx,
+			struct samsung_mux_clock *clk_list,
+			unsigned int nr_clk);
+extern void __init samsung_clk_register_div(struct samsung_clk_provider *ctx,
+			struct samsung_div_clock *clk_list,
 			unsigned int nr_clk);
-extern void __init samsung_clk_register_div(struct samsung_div_clock *clk_list,
+extern void __init samsung_clk_register_gate(struct samsung_clk_provider *ctx,
+			struct samsung_gate_clock *clk_list,
 			unsigned int nr_clk);
-extern void __init samsung_clk_register_gate(
-		struct samsung_gate_clock *clk_list, unsigned int nr_clk);
-extern void __init samsung_clk_register_pll(struct samsung_pll_clock *pll_list,
+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 unsigned long _get_rate(const char *clk_name);