drivers/clk/samsung/clk-s3c2443.c - kernel/msm-4.19 - Gitiles

 /*
  * Copyright (c) 2013 Heiko Stuebner <heiko@sntech.de>
  *
  * This program is free software; you can redistribute it and/or modify
  * it under the terms of the GNU General Public License version 2 as
  * published by the Free Software Foundation.
  *
  * Common Clock Framework support for S3C2443 and following SoCs.
  */

 #include <linux/clk-provider.h>
 #include <linux/of.h>
 #include <linux/of_address.h>
 #include <linux/syscore_ops.h>
 #include <linux/reboot.h>

 #include <dt-bindings/clock/s3c2443.h>

 #include "clk.h"
 #include "clk-pll.h"

 /* S3C2416 clock controller register offsets */
 #define LOCKCON0	0x00
 #define LOCKCON1	0x04
 #define MPLLCON		0x10
 #define EPLLCON		0x18
 #define EPLLCON_K	0x1C
 #define CLKSRC		0x20
 #define CLKDIV0		0x24
 #define CLKDIV1		0x28
 #define CLKDIV2		0x2C
 #define HCLKCON		0x30
 #define PCLKCON		0x34
 #define SCLKCON		0x38
 #define SWRST		0x44

 /* the soc types */
 enum supported_socs {
 	S3C2416,
 	S3C2443,
 	S3C2450,
 };

 /* list of PLLs to be registered */
 enum s3c2443_plls {
 	mpll, epll,
 };

 static void __iomem *reg_base;

 #ifdef CONFIG_PM_SLEEP
 static struct samsung_clk_reg_dump *s3c2443_save;

 /*
  * list of controller registers to be saved and restored during a
  * suspend/resume cycle.
  */
 static unsigned long s3c2443_clk_regs[] __initdata = {
 	LOCKCON0,
 	LOCKCON1,
 	MPLLCON,
 	EPLLCON,
 	EPLLCON_K,
 	CLKSRC,
 	CLKDIV0,
 	CLKDIV1,
 	CLKDIV2,
 	PCLKCON,
 	HCLKCON,
 	SCLKCON,
 };

 static int s3c2443_clk_suspend(void)
 {
 	samsung_clk_save(reg_base, s3c2443_save,
 				ARRAY_SIZE(s3c2443_clk_regs));

 	return 0;
 }

 static void s3c2443_clk_resume(void)
 {
 	samsung_clk_restore(reg_base, s3c2443_save,
 				ARRAY_SIZE(s3c2443_clk_regs));
 }

 static struct syscore_ops s3c2443_clk_syscore_ops = {
 	.suspend = s3c2443_clk_suspend,
 	.resume = s3c2443_clk_resume,
 };

 static void s3c2443_clk_sleep_init(void)
 {
 	s3c2443_save = samsung_clk_alloc_reg_dump(s3c2443_clk_regs,
 						ARRAY_SIZE(s3c2443_clk_regs));
 	if (!s3c2443_save) {
 		pr_warn("%s: failed to allocate sleep save data, no sleep support!\n",
 			__func__);
 		return;
 	}

 	register_syscore_ops(&s3c2443_clk_syscore_ops);
 	return;
 }
 #else
 static void s3c2443_clk_sleep_init(void) {}
 #endif

 PNAME(epllref_p) = { "mpllref", "mpllref", "xti", "ext" };
 PNAME(esysclk_p) = { "epllref", "epll" };
 PNAME(mpllref_p) = { "xti", "mdivclk" };
 PNAME(msysclk_p) = { "mpllref", "mpll" };
 PNAME(armclk_p) = { "armdiv" , "hclk" };
 PNAME(i2s0_p) = { "div_i2s0", "ext_i2s", "epllref", "epllref" };

 struct samsung_mux_clock s3c2443_common_muxes[] __initdata = {
 	MUX(0, "epllref", epllref_p, CLKSRC, 7, 2),
 	MUX(ESYSCLK, "esysclk", esysclk_p, CLKSRC, 6, 1),
 	MUX(0, "mpllref", mpllref_p, CLKSRC, 3, 1),
 	MUX_A(MSYSCLK, "msysclk", msysclk_p, CLKSRC, 4, 1, "msysclk"),
 	MUX_A(ARMCLK, "armclk", armclk_p, CLKDIV0, 13, 1, "armclk"),
 	MUX(0, "mux_i2s0", i2s0_p, CLKSRC, 14, 2),
 };

 static struct clk_div_table hclk_d[] = {
 	{ .val = 0, .div = 1 },
 	{ .val = 1, .div = 2 },
 	{ .val = 3, .div = 4 },
 	{ /* sentinel */ },
 };

 static struct clk_div_table mdivclk_d[] = {
 	{ .val = 0, .div = 1 },
 	{ .val = 1, .div = 3 },
 	{ .val = 2, .div = 5 },
 	{ .val = 3, .div = 7 },
 	{ .val = 4, .div = 9 },
 	{ .val = 5, .div = 11 },
 	{ .val = 6, .div = 13 },
 	{ .val = 7, .div = 15 },
 	{ /* sentinel */ },
 };

 struct samsung_div_clock s3c2443_common_dividers[] __initdata = {
 	DIV_T(0, "mdivclk", "xti", CLKDIV0, 6, 3, mdivclk_d),
 	DIV(0, "prediv", "msysclk", CLKDIV0, 4, 2),
 	DIV_T(HCLK, "hclk", "prediv", CLKDIV0, 0, 2, hclk_d),
 	DIV(PCLK, "pclk", "hclk", CLKDIV0, 2, 1),
 	DIV(0, "div_hsspi0_epll", "esysclk", CLKDIV1, 24, 2),
 	DIV(0, "div_fimd", "esysclk", CLKDIV1, 16, 8),
 	DIV(0, "div_i2s0", "esysclk", CLKDIV1, 12, 4),
 	DIV(0, "div_uart", "esysclk", CLKDIV1, 8, 4),
 	DIV(0, "div_hsmmc1", "esysclk", CLKDIV1, 6, 2),
 	DIV(0, "div_usbhost", "esysclk", CLKDIV1, 4, 2),
 };

 struct samsung_gate_clock s3c2443_common_gates[] __initdata = {
 	GATE(SCLK_HSMMC_EXT, "sclk_hsmmcext", "ext", SCLKCON, 13, 0, 0),
 	GATE(SCLK_HSMMC1, "sclk_hsmmc1", "div_hsmmc1", SCLKCON, 12, 0, 0),
 	GATE(SCLK_FIMD, "sclk_fimd", "div_fimd", SCLKCON, 10, 0, 0),
 	GATE(SCLK_I2S0, "sclk_i2s0", "mux_i2s0", SCLKCON, 9, 0, 0),
 	GATE(SCLK_UART, "sclk_uart", "div_uart", SCLKCON, 8, 0, 0),
 	GATE(SCLK_USBH, "sclk_usbhost", "div_usbhost", SCLKCON, 1, 0, 0),
 	GATE(HCLK_DRAM, "dram", "hclk", HCLKCON, 19, CLK_IGNORE_UNUSED, 0),
 	GATE(HCLK_SSMC, "ssmc", "hclk", HCLKCON, 18, CLK_IGNORE_UNUSED, 0),
 	GATE(HCLK_HSMMC1, "hsmmc1", "hclk", HCLKCON, 16, 0, 0),
 	GATE(HCLK_USBD, "usb-device", "hclk", HCLKCON, 12, 0, 0),
 	GATE(HCLK_USBH, "usb-host", "hclk", HCLKCON, 11, 0, 0),
 	GATE(HCLK_LCD, "lcd", "hclk", HCLKCON, 9, 0, 0),
 	GATE(HCLK_DMA5, "dma5", "hclk", HCLKCON, 5, CLK_IGNORE_UNUSED, 0),
 	GATE(HCLK_DMA4, "dma4", "hclk", HCLKCON, 4, CLK_IGNORE_UNUSED, 0),
 	GATE(HCLK_DMA3, "dma3", "hclk", HCLKCON, 3, CLK_IGNORE_UNUSED, 0),
 	GATE(HCLK_DMA2, "dma2", "hclk", HCLKCON, 2, CLK_IGNORE_UNUSED, 0),
 	GATE(HCLK_DMA1, "dma1", "hclk", HCLKCON, 1, CLK_IGNORE_UNUSED, 0),
 	GATE(HCLK_DMA0, "dma0", "hclk", HCLKCON, 0, CLK_IGNORE_UNUSED, 0),
 	GATE(PCLK_GPIO, "gpio", "pclk", PCLKCON, 13, CLK_IGNORE_UNUSED, 0),
 	GATE(PCLK_RTC, "rtc", "pclk", PCLKCON, 12, 0, 0),
 	GATE(PCLK_WDT, "wdt", "pclk", PCLKCON, 11, 0, 0),
 	GATE(PCLK_PWM, "pwm", "pclk", PCLKCON, 10, 0, 0),
 	GATE(PCLK_I2S0, "i2s0", "pclk", PCLKCON, 9, 0, 0),
 	GATE(PCLK_AC97, "ac97", "pclk", PCLKCON, 8, 0, 0),
 	GATE(PCLK_ADC, "adc", "pclk", PCLKCON, 7, 0, 0),
 	GATE(PCLK_SPI0, "spi0", "pclk", PCLKCON, 6, 0, 0),
 	GATE(PCLK_I2C0, "i2c0", "pclk", PCLKCON, 4, 0, 0),
 	GATE(PCLK_UART3, "uart3", "pclk", PCLKCON, 3, 0, 0),
 	GATE(PCLK_UART2, "uart2", "pclk", PCLKCON, 2, 0, 0),
 	GATE(PCLK_UART1, "uart1", "pclk", PCLKCON, 1, 0, 0),
 	GATE(PCLK_UART0, "uart0", "pclk", PCLKCON, 0, 0, 0),
 };

 struct samsung_clock_alias s3c2443_common_aliases[] __initdata = {
 	ALIAS(HCLK, NULL, "hclk"),
 	ALIAS(HCLK_SSMC, NULL, "nand"),
 	ALIAS(PCLK_UART0, "s3c2440-uart.0", "uart"),
 	ALIAS(PCLK_UART1, "s3c2440-uart.1", "uart"),
 	ALIAS(PCLK_UART2, "s3c2440-uart.2", "uart"),
 	ALIAS(PCLK_UART3, "s3c2440-uart.3", "uart"),
 	ALIAS(PCLK_UART0, "s3c2440-uart.0", "clk_uart_baud2"),
 	ALIAS(PCLK_UART1, "s3c2440-uart.1", "clk_uart_baud2"),
 	ALIAS(PCLK_UART2, "s3c2440-uart.2", "clk_uart_baud2"),
 	ALIAS(PCLK_UART3, "s3c2440-uart.3", "clk_uart_baud2"),
 	ALIAS(SCLK_UART, NULL, "clk_uart_baud3"),
 	ALIAS(PCLK_PWM, NULL, "timers"),
 	ALIAS(PCLK_RTC, NULL, "rtc"),
 	ALIAS(PCLK_WDT, NULL, "watchdog"),
 	ALIAS(PCLK_ADC, NULL, "adc"),
 	ALIAS(PCLK_I2C0, "s3c2410-i2c.0", "i2c"),
 	ALIAS(HCLK_USBD, NULL, "usb-device"),
 	ALIAS(HCLK_USBH, NULL, "usb-host"),
 	ALIAS(SCLK_USBH, NULL, "usb-bus-host"),
 	ALIAS(PCLK_SPI0, "s3c2443-spi.0", "spi"),
 	ALIAS(PCLK_SPI0, "s3c2443-spi.0", "spi_busclk0"),
 	ALIAS(HCLK_HSMMC1, "s3c-sdhci.1", "hsmmc"),
 	ALIAS(HCLK_HSMMC1, "s3c-sdhci.1", "mmc_busclk.0"),
 	ALIAS(PCLK_I2S0, "samsung-i2s.0", "iis"),
 	ALIAS(SCLK_I2S0, NULL, "i2s-if"),
 	ALIAS(HCLK_LCD, NULL, "lcd"),
 	ALIAS(SCLK_FIMD, NULL, "sclk_fimd"),
 };

 /* S3C2416 specific clocks */

 static struct samsung_pll_clock s3c2416_pll_clks[] __initdata = {
 	[mpll] = PLL(pll_6552_s3c2416, 0, "mpll", "mpllref",
 						LOCKCON0, MPLLCON, NULL),
 	[epll] = PLL(pll_6553, 0, "epll", "epllref",
 						LOCKCON1, EPLLCON, NULL),
 };

 PNAME(s3c2416_hsmmc0_p) = { "sclk_hsmmc0", "sclk_hsmmcext" };
 PNAME(s3c2416_hsmmc1_p) = { "sclk_hsmmc1", "sclk_hsmmcext" };
 PNAME(s3c2416_hsspi0_p) = { "hsspi0_epll", "hsspi0_mpll" };

 static struct clk_div_table armdiv_s3c2416_d[] = {
 	{ .val = 0, .div = 1 },
 	{ .val = 1, .div = 2 },
 	{ .val = 2, .div = 3 },
 	{ .val = 3, .div = 4 },
 	{ .val = 5, .div = 6 },
 	{ .val = 7, .div = 8 },
 	{ /* sentinel */ },
 };

 struct samsung_div_clock s3c2416_dividers[] __initdata = {
 	DIV_T(ARMDIV, "armdiv", "msysclk", CLKDIV0, 9, 3, armdiv_s3c2416_d),
 	DIV(0, "div_hsspi0_mpll", "msysclk", CLKDIV2, 0, 4),
 	DIV(0, "div_hsmmc0", "esysclk", CLKDIV2, 6, 2),
 };

 struct samsung_mux_clock s3c2416_muxes[] __initdata = {
 	MUX(MUX_HSMMC0, "mux_hsmmc0", s3c2416_hsmmc0_p, CLKSRC, 16, 1),
 	MUX(MUX_HSMMC1, "mux_hsmmc1", s3c2416_hsmmc1_p, CLKSRC, 17, 1),
 	MUX(MUX_HSSPI0, "mux_hsspi0", s3c2416_hsspi0_p, CLKSRC, 18, 1),
 };

 struct samsung_gate_clock s3c2416_gates[] __initdata = {
 	GATE(0, "hsspi0_mpll", "div_hsspi0_mpll", SCLKCON, 19, 0, 0),
 	GATE(0, "hsspi0_epll", "div_hsspi0_epll", SCLKCON, 14, 0, 0),
 	GATE(0, "sclk_hsmmc0", "div_hsmmc0", SCLKCON, 6, 0, 0),
 	GATE(HCLK_2D, "2d", "hclk", HCLKCON, 20, 0, 0),
 	GATE(HCLK_HSMMC0, "hsmmc0", "hclk", HCLKCON, 15, 0, 0),
 	GATE(HCLK_IROM, "irom", "hclk", HCLKCON, 13, CLK_IGNORE_UNUSED, 0),
 	GATE(PCLK_PCM, "pcm", "pclk", PCLKCON, 19, 0, 0),
 };

 struct samsung_clock_alias s3c2416_aliases[] __initdata = {
 	ALIAS(HCLK_HSMMC0, "s3c-sdhci.0", "hsmmc"),
 	ALIAS(HCLK_HSMMC0, "s3c-sdhci.0", "mmc_busclk.0"),
 	ALIAS(MUX_HSMMC0, "s3c-sdhci.0", "mmc_busclk.2"),
 	ALIAS(MUX_HSMMC1, "s3c-sdhci.1", "mmc_busclk.2"),
 	ALIAS(MUX_HSSPI0, "s3c2443-spi.0", "spi_busclk2"),
 	ALIAS(ARMDIV, NULL, "armdiv"),
 };

 /* S3C2443 specific clocks */

 static struct samsung_pll_clock s3c2443_pll_clks[] __initdata = {
 	[mpll] = PLL(pll_3000, 0, "mpll", "mpllref",
 						LOCKCON0, MPLLCON, NULL),
 	[epll] = PLL(pll_2126, 0, "epll", "epllref",
 						LOCKCON1, EPLLCON, NULL),
 };

 static struct clk_div_table armdiv_s3c2443_d[] = {
 	{ .val = 0, .div = 1 },
 	{ .val = 8, .div = 2 },
 	{ .val = 2, .div = 3 },
 	{ .val = 9, .div = 4 },
 	{ .val = 10, .div = 6 },
 	{ .val = 11, .div = 8 },
 	{ .val = 13, .div = 12 },
 	{ .val = 15, .div = 16 },
 	{ /* sentinel */ },
 };

 struct samsung_div_clock s3c2443_dividers[] __initdata = {
 	DIV_T(ARMDIV, "armdiv", "msysclk", CLKDIV0, 9, 4, armdiv_s3c2443_d),
 	DIV(0, "div_cam", "esysclk", CLKDIV1, 26, 4),
 };

 struct samsung_gate_clock s3c2443_gates[] __initdata = {
 	GATE(SCLK_HSSPI0, "sclk_hsspi0", "div_hsspi0_epll", SCLKCON, 14, 0, 0),
 	GATE(SCLK_CAM, "sclk_cam", "div_cam", SCLKCON, 11, 0, 0),
 	GATE(HCLK_CFC, "cfc", "hclk", HCLKCON, 17, CLK_IGNORE_UNUSED, 0),
 	GATE(HCLK_CAM, "cam", "hclk", HCLKCON, 8, 0, 0),
 	GATE(PCLK_SPI1, "spi1", "pclk", PCLKCON, 15, 0, 0),
 	GATE(PCLK_SDI, "sdi", "pclk", PCLKCON, 5, 0, 0),
 };

 struct samsung_clock_alias s3c2443_aliases[] __initdata = {
 	ALIAS(SCLK_HSSPI0, "s3c2443-spi.0", "spi_busclk2"),
 	ALIAS(SCLK_HSMMC1, "s3c-sdhci.1", "mmc_busclk.2"),
 	ALIAS(SCLK_CAM, NULL, "camif-upll"),
 	ALIAS(PCLK_SPI1, "s3c2410-spi.0", "spi"),
 	ALIAS(PCLK_SDI, NULL, "sdi"),
 	ALIAS(HCLK_CFC, NULL, "cfc"),
 	ALIAS(ARMDIV, NULL, "armdiv"),
 };

 /* S3C2450 specific clocks */

 PNAME(s3c2450_cam_p) = { "div_cam", "hclk" };
 PNAME(s3c2450_hsspi1_p) = { "hsspi1_epll", "hsspi1_mpll" };
 PNAME(i2s1_p) = { "div_i2s1", "ext_i2s", "epllref", "epllref" };

 struct samsung_div_clock s3c2450_dividers[] __initdata = {
 	DIV(0, "div_cam", "esysclk", CLKDIV1, 26, 4),
 	DIV(0, "div_hsspi1_epll", "esysclk", CLKDIV2, 24, 2),
 	DIV(0, "div_hsspi1_mpll", "msysclk", CLKDIV2, 16, 4),
 	DIV(0, "div_i2s1", "esysclk", CLKDIV2, 12, 4),
 };

 struct samsung_mux_clock s3c2450_muxes[] __initdata = {
 	MUX(0, "mux_cam", s3c2450_cam_p, CLKSRC, 20, 1),
 	MUX(MUX_HSSPI1, "mux_hsspi1", s3c2450_hsspi1_p, CLKSRC, 19, 1),
 	MUX(0, "mux_i2s1", i2s1_p, CLKSRC, 12, 2),
 };

 struct samsung_gate_clock s3c2450_gates[] __initdata = {
 	GATE(SCLK_I2S1, "sclk_i2s1", "div_i2s1", SCLKCON, 5, 0, 0),
 	GATE(HCLK_CFC, "cfc", "hclk", HCLKCON, 17, 0, 0),
 	GATE(HCLK_CAM, "cam", "hclk", HCLKCON, 8, 0, 0),
 	GATE(HCLK_DMA7, "dma7", "hclk", HCLKCON, 7, CLK_IGNORE_UNUSED, 0),
 	GATE(HCLK_DMA6, "dma6", "hclk", HCLKCON, 6, CLK_IGNORE_UNUSED, 0),
 	GATE(PCLK_I2S1, "i2s1", "pclk", PCLKCON, 17, 0, 0),
 	GATE(PCLK_I2C1, "i2c1", "pclk", PCLKCON, 16, 0, 0),
 	GATE(PCLK_SPI1, "spi1", "pclk", PCLKCON, 14, 0, 0),
 };

 struct samsung_clock_alias s3c2450_aliases[] __initdata = {
 	ALIAS(PCLK_SPI1, "s3c2443-spi.1", "spi"),
 	ALIAS(PCLK_SPI1, "s3c2443-spi.1", "spi_busclk0"),
 	ALIAS(MUX_HSSPI1, "s3c2443-spi.1", "spi_busclk2"),
 	ALIAS(PCLK_I2C1, "s3c2410-i2c.1", "i2c"),
 };

 static int s3c2443_restart(struct notifier_block *this,
 			   unsigned long mode, void *cmd)
 {
 	__raw_writel(0x533c2443, reg_base + SWRST);
 	return NOTIFY_DONE;
 }

 static struct notifier_block s3c2443_restart_handler = {
 	.notifier_call = s3c2443_restart,
 	.priority = 129,
 };

 /*
  * fixed rate clocks generated outside the soc
  * Only necessary until the devicetree-move is complete
  */
 struct samsung_fixed_rate_clock s3c2443_common_frate_clks[] __initdata = {
 	FRATE(0, "xti", NULL, 0, 0),
 	FRATE(0, "ext", NULL, 0, 0),
 	FRATE(0, "ext_i2s", NULL, 0, 0),
 	FRATE(0, "ext_uart", NULL, 0, 0),
 };

 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(ctx, s3c2443_common_frate_clks,
 				ARRAY_SIZE(s3c2443_common_frate_clks));
 }

 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;
 	int ret;
 	reg_base = base;

 	if (np) {
 		reg_base = of_iomap(np, 0);
 		if (!reg_base)
 			panic("%s: failed to map registers\n", __func__);
 	}

 	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(ctx, xti_f);

 	/* Register PLLs. */
 	if (current_soc == S3C2416 || current_soc == S3C2450)
 		samsung_clk_register_pll(ctx, s3c2416_pll_clks,
 				ARRAY_SIZE(s3c2416_pll_clks), reg_base);
 	else
 		samsung_clk_register_pll(ctx, s3c2443_pll_clks,
 				ARRAY_SIZE(s3c2443_pll_clks), reg_base);

 	/* Register common internal clocks. */
 	samsung_clk_register_mux(ctx, s3c2443_common_muxes,
 			ARRAY_SIZE(s3c2443_common_muxes));
 	samsung_clk_register_div(ctx, s3c2443_common_dividers,
 			ARRAY_SIZE(s3c2443_common_dividers));
 	samsung_clk_register_gate(ctx, s3c2443_common_gates,
 		ARRAY_SIZE(s3c2443_common_gates));
 	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(ctx, s3c2450_dividers,
 				ARRAY_SIZE(s3c2450_dividers));
 		samsung_clk_register_mux(ctx, s3c2450_muxes,
 				ARRAY_SIZE(s3c2450_muxes));
 		samsung_clk_register_gate(ctx, s3c2450_gates,
 				ARRAY_SIZE(s3c2450_gates));
 		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(ctx, s3c2416_dividers,
 				ARRAY_SIZE(s3c2416_dividers));
 		samsung_clk_register_mux(ctx, s3c2416_muxes,
 				ARRAY_SIZE(s3c2416_muxes));
 		samsung_clk_register_gate(ctx, s3c2416_gates,
 				ARRAY_SIZE(s3c2416_gates));
 		samsung_clk_register_alias(ctx, s3c2416_aliases,
 				ARRAY_SIZE(s3c2416_aliases));
 		break;
 	case S3C2443:
 		samsung_clk_register_div(ctx, s3c2443_dividers,
 				ARRAY_SIZE(s3c2443_dividers));
 		samsung_clk_register_gate(ctx, s3c2443_gates,
 				ARRAY_SIZE(s3c2443_gates));
 		samsung_clk_register_alias(ctx, s3c2443_aliases,
 				ARRAY_SIZE(s3c2443_aliases));
 		break;
 	}

 	s3c2443_clk_sleep_init();

 	samsung_clk_of_add_provider(np, ctx);

 	ret = register_restart_handler(&s3c2443_restart_handler);
 	if (ret)
 		pr_warn("cannot register restart handler, %d\n", ret);
 }

 static void __init s3c2416_clk_init(struct device_node *np)
 {
 	s3c2443_common_clk_init(np, 0, S3C2416, 0);
 }
 CLK_OF_DECLARE(s3c2416_clk, "samsung,s3c2416-clock", s3c2416_clk_init);

 static void __init s3c2443_clk_init(struct device_node *np)
 {
 	s3c2443_common_clk_init(np, 0, S3C2443, 0);
 }
 CLK_OF_DECLARE(s3c2443_clk, "samsung,s3c2443-clock", s3c2443_clk_init);

 static void __init s3c2450_clk_init(struct device_node *np)
 {
 	s3c2443_common_clk_init(np, 0, S3C2450, 0);
 }
 CLK_OF_DECLARE(s3c2450_clk, "samsung,s3c2450-clock", s3c2450_clk_init);
	/*
	* Copyright (c) 2013 Heiko Stuebner <heiko@sntech.de>
	*
	* This program is free software; you can redistribute it and/or modify
	* it under the terms of the GNU General Public License version 2 as
	* published by the Free Software Foundation.
	*
	* Common Clock Framework support for S3C2443 and following SoCs.
	*/

	#include <linux/clk-provider.h>
	#include <linux/of.h>
	#include <linux/of_address.h>
	#include <linux/syscore_ops.h>
	#include <linux/reboot.h>

	#include <dt-bindings/clock/s3c2443.h>

	#include "clk.h"
	#include "clk-pll.h"

	/* S3C2416 clock controller register offsets */
	#define LOCKCON0 0x00
	#define LOCKCON1 0x04
	#define MPLLCON 0x10
	#define EPLLCON 0x18
	#define EPLLCON_K 0x1C
	#define CLKSRC 0x20
	#define CLKDIV0 0x24
	#define CLKDIV1 0x28
	#define CLKDIV2 0x2C
	#define HCLKCON 0x30
	#define PCLKCON 0x34
	#define SCLKCON 0x38
	#define SWRST 0x44

	/* the soc types */
	enum supported_socs {
	S3C2416,
	S3C2443,
	S3C2450,
	};

	/* list of PLLs to be registered */
	enum s3c2443_plls {
	mpll, epll,
	};

	static void __iomem *reg_base;

	#ifdef CONFIG_PM_SLEEP
	static struct samsung_clk_reg_dump *s3c2443_save;

	/*
	* list of controller registers to be saved and restored during a
	* suspend/resume cycle.
	*/
	static unsigned long s3c2443_clk_regs[] __initdata = {
	LOCKCON0,
	LOCKCON1,
	MPLLCON,
	EPLLCON,
	EPLLCON_K,
	CLKSRC,
	CLKDIV0,
	CLKDIV1,
	CLKDIV2,
	PCLKCON,
	HCLKCON,
	SCLKCON,
	};

	static int s3c2443_clk_suspend(void)
	{
	samsung_clk_save(reg_base, s3c2443_save,
	ARRAY_SIZE(s3c2443_clk_regs));

	return 0;
	}

	static void s3c2443_clk_resume(void)
	{
	samsung_clk_restore(reg_base, s3c2443_save,
	ARRAY_SIZE(s3c2443_clk_regs));
	}

	static struct syscore_ops s3c2443_clk_syscore_ops = {
	.suspend = s3c2443_clk_suspend,
	.resume = s3c2443_clk_resume,
	};

	static void s3c2443_clk_sleep_init(void)
	{
	s3c2443_save = samsung_clk_alloc_reg_dump(s3c2443_clk_regs,
	ARRAY_SIZE(s3c2443_clk_regs));
	if (!s3c2443_save) {
	pr_warn("%s: failed to allocate sleep save data, no sleep support!\n",
	__func__);
	return;
	}

	register_syscore_ops(&s3c2443_clk_syscore_ops);
	return;
	}
	#else
	static void s3c2443_clk_sleep_init(void) {}
	#endif

	PNAME(epllref_p) = { "mpllref", "mpllref", "xti", "ext" };
	PNAME(esysclk_p) = { "epllref", "epll" };
	PNAME(mpllref_p) = { "xti", "mdivclk" };
	PNAME(msysclk_p) = { "mpllref", "mpll" };
	PNAME(armclk_p) = { "armdiv" , "hclk" };
	PNAME(i2s0_p) = { "div_i2s0", "ext_i2s", "epllref", "epllref" };

	struct samsung_mux_clock s3c2443_common_muxes[] __initdata = {
	MUX(0, "epllref", epllref_p, CLKSRC, 7, 2),
	MUX(ESYSCLK, "esysclk", esysclk_p, CLKSRC, 6, 1),
	MUX(0, "mpllref", mpllref_p, CLKSRC, 3, 1),
	MUX_A(MSYSCLK, "msysclk", msysclk_p, CLKSRC, 4, 1, "msysclk"),
	MUX_A(ARMCLK, "armclk", armclk_p, CLKDIV0, 13, 1, "armclk"),
	MUX(0, "mux_i2s0", i2s0_p, CLKSRC, 14, 2),
	};

	static struct clk_div_table hclk_d[] = {
	{ .val = 0, .div = 1 },
	{ .val = 1, .div = 2 },
	{ .val = 3, .div = 4 },
	{ /* sentinel */ },
	};

	static struct clk_div_table mdivclk_d[] = {
	{ .val = 0, .div = 1 },
	{ .val = 1, .div = 3 },
	{ .val = 2, .div = 5 },
	{ .val = 3, .div = 7 },
	{ .val = 4, .div = 9 },
	{ .val = 5, .div = 11 },
	{ .val = 6, .div = 13 },
	{ .val = 7, .div = 15 },
	{ /* sentinel */ },
	};

	struct samsung_div_clock s3c2443_common_dividers[] __initdata = {
	DIV_T(0, "mdivclk", "xti", CLKDIV0, 6, 3, mdivclk_d),
	DIV(0, "prediv", "msysclk", CLKDIV0, 4, 2),
	DIV_T(HCLK, "hclk", "prediv", CLKDIV0, 0, 2, hclk_d),
	DIV(PCLK, "pclk", "hclk", CLKDIV0, 2, 1),
	DIV(0, "div_hsspi0_epll", "esysclk", CLKDIV1, 24, 2),
	DIV(0, "div_fimd", "esysclk", CLKDIV1, 16, 8),
	DIV(0, "div_i2s0", "esysclk", CLKDIV1, 12, 4),
	DIV(0, "div_uart", "esysclk", CLKDIV1, 8, 4),
	DIV(0, "div_hsmmc1", "esysclk", CLKDIV1, 6, 2),
	DIV(0, "div_usbhost", "esysclk", CLKDIV1, 4, 2),
	};

	struct samsung_gate_clock s3c2443_common_gates[] __initdata = {
	GATE(SCLK_HSMMC_EXT, "sclk_hsmmcext", "ext", SCLKCON, 13, 0, 0),
	GATE(SCLK_HSMMC1, "sclk_hsmmc1", "div_hsmmc1", SCLKCON, 12, 0, 0),
	GATE(SCLK_FIMD, "sclk_fimd", "div_fimd", SCLKCON, 10, 0, 0),
	GATE(SCLK_I2S0, "sclk_i2s0", "mux_i2s0", SCLKCON, 9, 0, 0),
	GATE(SCLK_UART, "sclk_uart", "div_uart", SCLKCON, 8, 0, 0),
	GATE(SCLK_USBH, "sclk_usbhost", "div_usbhost", SCLKCON, 1, 0, 0),
	GATE(HCLK_DRAM, "dram", "hclk", HCLKCON, 19, CLK_IGNORE_UNUSED, 0),
	GATE(HCLK_SSMC, "ssmc", "hclk", HCLKCON, 18, CLK_IGNORE_UNUSED, 0),
	GATE(HCLK_HSMMC1, "hsmmc1", "hclk", HCLKCON, 16, 0, 0),
	GATE(HCLK_USBD, "usb-device", "hclk", HCLKCON, 12, 0, 0),
	GATE(HCLK_USBH, "usb-host", "hclk", HCLKCON, 11, 0, 0),
	GATE(HCLK_LCD, "lcd", "hclk", HCLKCON, 9, 0, 0),
	GATE(HCLK_DMA5, "dma5", "hclk", HCLKCON, 5, CLK_IGNORE_UNUSED, 0),
	GATE(HCLK_DMA4, "dma4", "hclk", HCLKCON, 4, CLK_IGNORE_UNUSED, 0),
	GATE(HCLK_DMA3, "dma3", "hclk", HCLKCON, 3, CLK_IGNORE_UNUSED, 0),
	GATE(HCLK_DMA2, "dma2", "hclk", HCLKCON, 2, CLK_IGNORE_UNUSED, 0),
	GATE(HCLK_DMA1, "dma1", "hclk", HCLKCON, 1, CLK_IGNORE_UNUSED, 0),
	GATE(HCLK_DMA0, "dma0", "hclk", HCLKCON, 0, CLK_IGNORE_UNUSED, 0),
	GATE(PCLK_GPIO, "gpio", "pclk", PCLKCON, 13, CLK_IGNORE_UNUSED, 0),
	GATE(PCLK_RTC, "rtc", "pclk", PCLKCON, 12, 0, 0),
	GATE(PCLK_WDT, "wdt", "pclk", PCLKCON, 11, 0, 0),
	GATE(PCLK_PWM, "pwm", "pclk", PCLKCON, 10, 0, 0),
	GATE(PCLK_I2S0, "i2s0", "pclk", PCLKCON, 9, 0, 0),
	GATE(PCLK_AC97, "ac97", "pclk", PCLKCON, 8, 0, 0),
	GATE(PCLK_ADC, "adc", "pclk", PCLKCON, 7, 0, 0),
	GATE(PCLK_SPI0, "spi0", "pclk", PCLKCON, 6, 0, 0),
	GATE(PCLK_I2C0, "i2c0", "pclk", PCLKCON, 4, 0, 0),
	GATE(PCLK_UART3, "uart3", "pclk", PCLKCON, 3, 0, 0),
	GATE(PCLK_UART2, "uart2", "pclk", PCLKCON, 2, 0, 0),
	GATE(PCLK_UART1, "uart1", "pclk", PCLKCON, 1, 0, 0),
	GATE(PCLK_UART0, "uart0", "pclk", PCLKCON, 0, 0, 0),
	};

	struct samsung_clock_alias s3c2443_common_aliases[] __initdata = {
	ALIAS(HCLK, NULL, "hclk"),
	ALIAS(HCLK_SSMC, NULL, "nand"),
	ALIAS(PCLK_UART0, "s3c2440-uart.0", "uart"),
	ALIAS(PCLK_UART1, "s3c2440-uart.1", "uart"),
	ALIAS(PCLK_UART2, "s3c2440-uart.2", "uart"),
	ALIAS(PCLK_UART3, "s3c2440-uart.3", "uart"),
	ALIAS(PCLK_UART0, "s3c2440-uart.0", "clk_uart_baud2"),
	ALIAS(PCLK_UART1, "s3c2440-uart.1", "clk_uart_baud2"),
	ALIAS(PCLK_UART2, "s3c2440-uart.2", "clk_uart_baud2"),
	ALIAS(PCLK_UART3, "s3c2440-uart.3", "clk_uart_baud2"),
	ALIAS(SCLK_UART, NULL, "clk_uart_baud3"),
	ALIAS(PCLK_PWM, NULL, "timers"),
	ALIAS(PCLK_RTC, NULL, "rtc"),
	ALIAS(PCLK_WDT, NULL, "watchdog"),
	ALIAS(PCLK_ADC, NULL, "adc"),
	ALIAS(PCLK_I2C0, "s3c2410-i2c.0", "i2c"),
	ALIAS(HCLK_USBD, NULL, "usb-device"),
	ALIAS(HCLK_USBH, NULL, "usb-host"),
	ALIAS(SCLK_USBH, NULL, "usb-bus-host"),
	ALIAS(PCLK_SPI0, "s3c2443-spi.0", "spi"),
	ALIAS(PCLK_SPI0, "s3c2443-spi.0", "spi_busclk0"),
	ALIAS(HCLK_HSMMC1, "s3c-sdhci.1", "hsmmc"),
	ALIAS(HCLK_HSMMC1, "s3c-sdhci.1", "mmc_busclk.0"),
	ALIAS(PCLK_I2S0, "samsung-i2s.0", "iis"),
	ALIAS(SCLK_I2S0, NULL, "i2s-if"),
	ALIAS(HCLK_LCD, NULL, "lcd"),
	ALIAS(SCLK_FIMD, NULL, "sclk_fimd"),
	};

	/* S3C2416 specific clocks */

	static struct samsung_pll_clock s3c2416_pll_clks[] __initdata = {
	[mpll] = PLL(pll_6552_s3c2416, 0, "mpll", "mpllref",
	LOCKCON0, MPLLCON, NULL),
	[epll] = PLL(pll_6553, 0, "epll", "epllref",
	LOCKCON1, EPLLCON, NULL),
	};

	PNAME(s3c2416_hsmmc0_p) = { "sclk_hsmmc0", "sclk_hsmmcext" };
	PNAME(s3c2416_hsmmc1_p) = { "sclk_hsmmc1", "sclk_hsmmcext" };
	PNAME(s3c2416_hsspi0_p) = { "hsspi0_epll", "hsspi0_mpll" };

	static struct clk_div_table armdiv_s3c2416_d[] = {
	{ .val = 0, .div = 1 },
	{ .val = 1, .div = 2 },
	{ .val = 2, .div = 3 },
	{ .val = 3, .div = 4 },
	{ .val = 5, .div = 6 },
	{ .val = 7, .div = 8 },
	{ /* sentinel */ },
	};

	struct samsung_div_clock s3c2416_dividers[] __initdata = {
	DIV_T(ARMDIV, "armdiv", "msysclk", CLKDIV0, 9, 3, armdiv_s3c2416_d),
	DIV(0, "div_hsspi0_mpll", "msysclk", CLKDIV2, 0, 4),
	DIV(0, "div_hsmmc0", "esysclk", CLKDIV2, 6, 2),
	};

	struct samsung_mux_clock s3c2416_muxes[] __initdata = {
	MUX(MUX_HSMMC0, "mux_hsmmc0", s3c2416_hsmmc0_p, CLKSRC, 16, 1),
	MUX(MUX_HSMMC1, "mux_hsmmc1", s3c2416_hsmmc1_p, CLKSRC, 17, 1),
	MUX(MUX_HSSPI0, "mux_hsspi0", s3c2416_hsspi0_p, CLKSRC, 18, 1),
	};

	struct samsung_gate_clock s3c2416_gates[] __initdata = {
	GATE(0, "hsspi0_mpll", "div_hsspi0_mpll", SCLKCON, 19, 0, 0),
	GATE(0, "hsspi0_epll", "div_hsspi0_epll", SCLKCON, 14, 0, 0),
	GATE(0, "sclk_hsmmc0", "div_hsmmc0", SCLKCON, 6, 0, 0),
	GATE(HCLK_2D, "2d", "hclk", HCLKCON, 20, 0, 0),
	GATE(HCLK_HSMMC0, "hsmmc0", "hclk", HCLKCON, 15, 0, 0),
	GATE(HCLK_IROM, "irom", "hclk", HCLKCON, 13, CLK_IGNORE_UNUSED, 0),
	GATE(PCLK_PCM, "pcm", "pclk", PCLKCON, 19, 0, 0),
	};

	struct samsung_clock_alias s3c2416_aliases[] __initdata = {
	ALIAS(HCLK_HSMMC0, "s3c-sdhci.0", "hsmmc"),
	ALIAS(HCLK_HSMMC0, "s3c-sdhci.0", "mmc_busclk.0"),
	ALIAS(MUX_HSMMC0, "s3c-sdhci.0", "mmc_busclk.2"),
	ALIAS(MUX_HSMMC1, "s3c-sdhci.1", "mmc_busclk.2"),
	ALIAS(MUX_HSSPI0, "s3c2443-spi.0", "spi_busclk2"),
	ALIAS(ARMDIV, NULL, "armdiv"),
	};

	/* S3C2443 specific clocks */

	static struct samsung_pll_clock s3c2443_pll_clks[] __initdata = {
	[mpll] = PLL(pll_3000, 0, "mpll", "mpllref",
	LOCKCON0, MPLLCON, NULL),
	[epll] = PLL(pll_2126, 0, "epll", "epllref",
	LOCKCON1, EPLLCON, NULL),
	};

	static struct clk_div_table armdiv_s3c2443_d[] = {
	{ .val = 0, .div = 1 },
	{ .val = 8, .div = 2 },
	{ .val = 2, .div = 3 },
	{ .val = 9, .div = 4 },
	{ .val = 10, .div = 6 },
	{ .val = 11, .div = 8 },
	{ .val = 13, .div = 12 },
	{ .val = 15, .div = 16 },
	{ /* sentinel */ },
	};

	struct samsung_div_clock s3c2443_dividers[] __initdata = {
	DIV_T(ARMDIV, "armdiv", "msysclk", CLKDIV0, 9, 4, armdiv_s3c2443_d),
	DIV(0, "div_cam", "esysclk", CLKDIV1, 26, 4),
	};

	struct samsung_gate_clock s3c2443_gates[] __initdata = {
	GATE(SCLK_HSSPI0, "sclk_hsspi0", "div_hsspi0_epll", SCLKCON, 14, 0, 0),
	GATE(SCLK_CAM, "sclk_cam", "div_cam", SCLKCON, 11, 0, 0),
	GATE(HCLK_CFC, "cfc", "hclk", HCLKCON, 17, CLK_IGNORE_UNUSED, 0),
	GATE(HCLK_CAM, "cam", "hclk", HCLKCON, 8, 0, 0),
	GATE(PCLK_SPI1, "spi1", "pclk", PCLKCON, 15, 0, 0),
	GATE(PCLK_SDI, "sdi", "pclk", PCLKCON, 5, 0, 0),
	};

	struct samsung_clock_alias s3c2443_aliases[] __initdata = {
	ALIAS(SCLK_HSSPI0, "s3c2443-spi.0", "spi_busclk2"),
	ALIAS(SCLK_HSMMC1, "s3c-sdhci.1", "mmc_busclk.2"),
	ALIAS(SCLK_CAM, NULL, "camif-upll"),
	ALIAS(PCLK_SPI1, "s3c2410-spi.0", "spi"),
	ALIAS(PCLK_SDI, NULL, "sdi"),
	ALIAS(HCLK_CFC, NULL, "cfc"),
	ALIAS(ARMDIV, NULL, "armdiv"),
	};

	/* S3C2450 specific clocks */

	PNAME(s3c2450_cam_p) = { "div_cam", "hclk" };
	PNAME(s3c2450_hsspi1_p) = { "hsspi1_epll", "hsspi1_mpll" };
	PNAME(i2s1_p) = { "div_i2s1", "ext_i2s", "epllref", "epllref" };

	struct samsung_div_clock s3c2450_dividers[] __initdata = {
	DIV(0, "div_cam", "esysclk", CLKDIV1, 26, 4),
	DIV(0, "div_hsspi1_epll", "esysclk", CLKDIV2, 24, 2),
	DIV(0, "div_hsspi1_mpll", "msysclk", CLKDIV2, 16, 4),
	DIV(0, "div_i2s1", "esysclk", CLKDIV2, 12, 4),
	};

	struct samsung_mux_clock s3c2450_muxes[] __initdata = {
	MUX(0, "mux_cam", s3c2450_cam_p, CLKSRC, 20, 1),
	MUX(MUX_HSSPI1, "mux_hsspi1", s3c2450_hsspi1_p, CLKSRC, 19, 1),
	MUX(0, "mux_i2s1", i2s1_p, CLKSRC, 12, 2),
	};

	struct samsung_gate_clock s3c2450_gates[] __initdata = {
	GATE(SCLK_I2S1, "sclk_i2s1", "div_i2s1", SCLKCON, 5, 0, 0),
	GATE(HCLK_CFC, "cfc", "hclk", HCLKCON, 17, 0, 0),
	GATE(HCLK_CAM, "cam", "hclk", HCLKCON, 8, 0, 0),
	GATE(HCLK_DMA7, "dma7", "hclk", HCLKCON, 7, CLK_IGNORE_UNUSED, 0),
	GATE(HCLK_DMA6, "dma6", "hclk", HCLKCON, 6, CLK_IGNORE_UNUSED, 0),
	GATE(PCLK_I2S1, "i2s1", "pclk", PCLKCON, 17, 0, 0),
	GATE(PCLK_I2C1, "i2c1", "pclk", PCLKCON, 16, 0, 0),
	GATE(PCLK_SPI1, "spi1", "pclk", PCLKCON, 14, 0, 0),
	};

	struct samsung_clock_alias s3c2450_aliases[] __initdata = {
	ALIAS(PCLK_SPI1, "s3c2443-spi.1", "spi"),
	ALIAS(PCLK_SPI1, "s3c2443-spi.1", "spi_busclk0"),
	ALIAS(MUX_HSSPI1, "s3c2443-spi.1", "spi_busclk2"),
	ALIAS(PCLK_I2C1, "s3c2410-i2c.1", "i2c"),
	};

	static int s3c2443_restart(struct notifier_block *this,
	unsigned long mode, void *cmd)
	{
	__raw_writel(0x533c2443, reg_base + SWRST);
	return NOTIFY_DONE;
	}

	static struct notifier_block s3c2443_restart_handler = {
	.notifier_call = s3c2443_restart,
	.priority = 129,
	};

	/*
	* fixed rate clocks generated outside the soc
	* Only necessary until the devicetree-move is complete
	*/
	struct samsung_fixed_rate_clock s3c2443_common_frate_clks[] __initdata = {
	FRATE(0, "xti", NULL, 0, 0),
	FRATE(0, "ext", NULL, 0, 0),
	FRATE(0, "ext_i2s", NULL, 0, 0),
	FRATE(0, "ext_uart", NULL, 0, 0),
	};

	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(ctx, s3c2443_common_frate_clks,
	ARRAY_SIZE(s3c2443_common_frate_clks));
	}

	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;
	int ret;
	reg_base = base;

	if (np) {
	reg_base = of_iomap(np, 0);
	if (!reg_base)
	panic("%s: failed to map registers\n", __func__);
	}

	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(ctx, xti_f);

	/* Register PLLs. */
	if (current_soc == S3C2416 \|\| current_soc == S3C2450)
	samsung_clk_register_pll(ctx, s3c2416_pll_clks,
	ARRAY_SIZE(s3c2416_pll_clks), reg_base);
	else
	samsung_clk_register_pll(ctx, s3c2443_pll_clks,
	ARRAY_SIZE(s3c2443_pll_clks), reg_base);

	/* Register common internal clocks. */
	samsung_clk_register_mux(ctx, s3c2443_common_muxes,
	ARRAY_SIZE(s3c2443_common_muxes));
	samsung_clk_register_div(ctx, s3c2443_common_dividers,
	ARRAY_SIZE(s3c2443_common_dividers));
	samsung_clk_register_gate(ctx, s3c2443_common_gates,
	ARRAY_SIZE(s3c2443_common_gates));
	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(ctx, s3c2450_dividers,
	ARRAY_SIZE(s3c2450_dividers));
	samsung_clk_register_mux(ctx, s3c2450_muxes,
	ARRAY_SIZE(s3c2450_muxes));
	samsung_clk_register_gate(ctx, s3c2450_gates,
	ARRAY_SIZE(s3c2450_gates));
	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(ctx, s3c2416_dividers,
	ARRAY_SIZE(s3c2416_dividers));
	samsung_clk_register_mux(ctx, s3c2416_muxes,
	ARRAY_SIZE(s3c2416_muxes));
	samsung_clk_register_gate(ctx, s3c2416_gates,
	ARRAY_SIZE(s3c2416_gates));
	samsung_clk_register_alias(ctx, s3c2416_aliases,
	ARRAY_SIZE(s3c2416_aliases));
	break;
	case S3C2443:
	samsung_clk_register_div(ctx, s3c2443_dividers,
	ARRAY_SIZE(s3c2443_dividers));
	samsung_clk_register_gate(ctx, s3c2443_gates,
	ARRAY_SIZE(s3c2443_gates));
	samsung_clk_register_alias(ctx, s3c2443_aliases,
	ARRAY_SIZE(s3c2443_aliases));
	break;
	}

	s3c2443_clk_sleep_init();

	samsung_clk_of_add_provider(np, ctx);

	ret = register_restart_handler(&s3c2443_restart_handler);
	if (ret)
	pr_warn("cannot register restart handler, %d\n", ret);
	}

	static void __init s3c2416_clk_init(struct device_node *np)
	{
	s3c2443_common_clk_init(np, 0, S3C2416, 0);
	}
	CLK_OF_DECLARE(s3c2416_clk, "samsung,s3c2416-clock", s3c2416_clk_init);

	static void __init s3c2443_clk_init(struct device_node *np)
	{
	s3c2443_common_clk_init(np, 0, S3C2443, 0);
	}
	CLK_OF_DECLARE(s3c2443_clk, "samsung,s3c2443-clock", s3c2443_clk_init);

	static void __init s3c2450_clk_init(struct device_node *np)
	{
	s3c2443_common_clk_init(np, 0, S3C2450, 0);
	}
	CLK_OF_DECLARE(s3c2450_clk, "samsung,s3c2450-clock", s3c2450_clk_init);