1 files changed, 553 insertions, 148 deletions

diff --git a/drivers/clk/samsung/clk-pll.c b/drivers/clk/samsung/clk-pll.c
index 362f12dcd944..529e11dc2c6b 100644
--- a/drivers/clk/samsung/clk-pll.c
+++ b/drivers/clk/samsung/clk-pll.c
@@ -10,31 +10,73 @@
 */
 
 #include <linux/errno.h>
+#include <linux/hrtimer.h>
 #include "clk.h"
 #include "clk-pll.h"
 
+#define PLL_TIMEOUT_MS		10
+
+struct samsung_clk_pll {
+	struct clk_hw		hw;
+	void __iomem		*lock_reg;
+	void __iomem		*con_reg;
+	enum samsung_pll_type	type;
+	unsigned int		rate_count;
+	const struct samsung_pll_rate_table *rate_table;
+};
+
+#define to_clk_pll(_hw) container_of(_hw, struct samsung_clk_pll, hw)
+
+static const struct samsung_pll_rate_table *samsung_get_pll_settings(
+				struct samsung_clk_pll *pll, unsigned long rate)
+{
+	const struct samsung_pll_rate_table  *rate_table = pll->rate_table;
+	int i;
+
+	for (i = 0; i < pll->rate_count; i++) {
+		if (rate == rate_table[i].rate)
+			return &rate_table[i];
+	}
+
+	return NULL;
+}
+
+static long samsung_pll_round_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_table = pll->rate_table;
+	int i;
+
+	/* Assumming rate_table is in descending order */
+	for (i = 0; i < pll->rate_count; i++) {
+		if (drate >= rate_table[i].rate)
+			return rate_table[i].rate;
+	}
+
+	/* return minimum supported value */
+	return rate_table[i - 1].rate;
+}
+
 /*
  * PLL35xx Clock Type
  */
+/* Maximum lock time can be 270 * PDIV cycles */
+#define PLL35XX_LOCK_FACTOR	(270)
 
 #define PLL35XX_MDIV_MASK       (0x3FF)
 #define PLL35XX_PDIV_MASK       (0x3F)
 #define PLL35XX_SDIV_MASK       (0x7)
+#define PLL35XX_LOCK_STAT_MASK	(0x1)
 #define PLL35XX_MDIV_SHIFT      (16)
 #define PLL35XX_PDIV_SHIFT      (8)
 #define PLL35XX_SDIV_SHIFT      (0)
-
-struct samsung_clk_pll35xx {
-	struct clk_hw		hw;
-	const void __iomem	*con_reg;
-};
-
-#define to_clk_pll35xx(_hw) container_of(_hw, struct samsung_clk_pll35xx, hw)
+#define PLL35XX_LOCK_STAT_SHIFT	(29)
 
 static unsigned long samsung_pll35xx_recalc_rate(struct clk_hw *hw,
 				unsigned long parent_rate)
 {
-	struct samsung_clk_pll35xx *pll = to_clk_pll35xx(hw);
+	struct samsung_clk_pll *pll = to_clk_pll(hw);
 	u32 mdiv, pdiv, sdiv, pll_con;
 	u64 fvco = parent_rate;
 
@@ -49,48 +91,80 @@ static unsigned long samsung_pll35xx_recalc_rate(struct clk_hw *hw,
 	return (unsigned long)fvco;
 }
 
-static const struct clk_ops samsung_pll35xx_clk_ops = {
-	.recalc_rate = samsung_pll35xx_recalc_rate,
-};
-
-struct clk * __init samsung_clk_register_pll35xx(const char *name,
-			const char *pname, const void __iomem *con_reg)
+static inline bool samsung_pll35xx_mp_change(
+		const struct samsung_pll_rate_table *rate, u32 pll_con)
 {
-	struct samsung_clk_pll35xx *pll;
-	struct clk *clk;
-	struct clk_init_data init;
+	u32 old_mdiv, old_pdiv;
 
-	pll = kzalloc(sizeof(*pll), GFP_KERNEL);
-	if (!pll) {
-		pr_err("%s: could not allocate pll clk %s\n", __func__, name);
-		return NULL;
+	old_mdiv = (pll_con >> PLL35XX_MDIV_SHIFT) & PLL35XX_MDIV_MASK;
+	old_pdiv = (pll_con >> PLL35XX_PDIV_SHIFT) & PLL35XX_PDIV_MASK;
+
+	return (rate->mdiv != old_mdiv || rate->pdiv != old_pdiv);
+}
+
+static int samsung_pll35xx_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;
 	}
 
-	init.name = name;
-	init.ops = &samsung_pll35xx_clk_ops;
-	init.flags = CLK_GET_RATE_NOCACHE;
-	init.parent_names = &pname;
-	init.num_parents = 1;
+	tmp = __raw_readl(pll->con_reg);
 
-	pll->hw.init = &init;
-	pll->con_reg = con_reg;
+	if (!(samsung_pll35xx_mp_change(rate, tmp))) {
+		/* If only s change, change just s value only*/
+		tmp &= ~(PLL35XX_SDIV_MASK << PLL35XX_SDIV_SHIFT);
+		tmp |= rate->sdiv << PLL35XX_SDIV_SHIFT;
+		__raw_writel(tmp, pll->con_reg);
 
-	clk = clk_register(NULL, &pll->hw);
-	if (IS_ERR(clk)) {
-		pr_err("%s: failed to register pll clock %s\n", __func__,
-				name);
-		kfree(pll);
+		return 0;
 	}
 
-	if (clk_register_clkdev(clk, name, NULL))
-		pr_err("%s: failed to register lookup for %s", __func__, name);
-
-	return clk;
+	/* Set PLL lock time. */
+	__raw_writel(rate->pdiv * PLL35XX_LOCK_FACTOR,
+			pll->lock_reg);
+
+	/* Change PLL PMS values */
+	tmp &= ~((PLL35XX_MDIV_MASK << PLL35XX_MDIV_SHIFT) |
+			(PLL35XX_PDIV_MASK << PLL35XX_PDIV_SHIFT) |
+			(PLL35XX_SDIV_MASK << PLL35XX_SDIV_SHIFT));
+	tmp |= (rate->mdiv << PLL35XX_MDIV_SHIFT) |
+			(rate->pdiv << PLL35XX_PDIV_SHIFT) |
+			(rate->sdiv << PLL35XX_SDIV_SHIFT);
+	__raw_writel(tmp, pll->con_reg);
+
+	/* wait_lock_time */
+	do {
+		cpu_relax();
+		tmp = __raw_readl(pll->con_reg);
+	} while (!(tmp & (PLL35XX_LOCK_STAT_MASK
+				<< PLL35XX_LOCK_STAT_SHIFT)));
+	return 0;
 }
 
+static const struct clk_ops samsung_pll35xx_clk_ops = {
+	.recalc_rate = samsung_pll35xx_recalc_rate,
+	.round_rate = samsung_pll_round_rate,
+	.set_rate = samsung_pll35xx_set_rate,
+};
+
+static const struct clk_ops samsung_pll35xx_clk_min_ops = {
+	.recalc_rate = samsung_pll35xx_recalc_rate,
+};
+
 /*
  * PLL36xx Clock Type
  */
+/* Maximum lock time can be 3000 * PDIV cycles */
+#define PLL36XX_LOCK_FACTOR    (3000)
 
 #define PLL36XX_KDIV_MASK	(0xFFFF)
 #define PLL36XX_MDIV_MASK	(0x1FF)
@@ -99,18 +173,13 @@ struct clk * __init samsung_clk_register_pll35xx(const char *name,
 #define PLL36XX_MDIV_SHIFT	(16)
 #define PLL36XX_PDIV_SHIFT	(8)
 #define PLL36XX_SDIV_SHIFT	(0)
-
-struct samsung_clk_pll36xx {
-	struct clk_hw		hw;
-	const void __iomem	*con_reg;
-};
-
-#define to_clk_pll36xx(_hw) container_of(_hw, struct samsung_clk_pll36xx, hw)
+#define PLL36XX_KDIV_SHIFT	(0)
+#define PLL36XX_LOCK_STAT_SHIFT	(29)
 
 static unsigned long samsung_pll36xx_recalc_rate(struct clk_hw *hw,
 				unsigned long parent_rate)
 {
-	struct samsung_clk_pll36xx *pll = to_clk_pll36xx(hw);
+	struct samsung_clk_pll *pll = to_clk_pll(hw);
 	u32 mdiv, pdiv, sdiv, pll_con0, pll_con1;
 	s16 kdiv;
 	u64 fvco = parent_rate;
@@ -129,68 +198,102 @@ static unsigned long samsung_pll36xx_recalc_rate(struct clk_hw *hw,
 	return (unsigned long)fvco;
 }
 
-static const struct clk_ops samsung_pll36xx_clk_ops = {
-	.recalc_rate = samsung_pll36xx_recalc_rate,
-};
-
-struct clk * __init samsung_clk_register_pll36xx(const char *name,
-			const char *pname, const void __iomem *con_reg)
+static inline bool samsung_pll36xx_mpk_change(
+	const struct samsung_pll_rate_table *rate, u32 pll_con0, u32 pll_con1)
 {
-	struct samsung_clk_pll36xx *pll;
-	struct clk *clk;
-	struct clk_init_data init;
+	u32 old_mdiv, old_pdiv, old_kdiv;
 
-	pll = kzalloc(sizeof(*pll), GFP_KERNEL);
-	if (!pll) {
-		pr_err("%s: could not allocate pll clk %s\n", __func__, name);
-		return NULL;
+	old_mdiv = (pll_con0 >> PLL36XX_MDIV_SHIFT) & PLL36XX_MDIV_MASK;
+	old_pdiv = (pll_con0 >> PLL36XX_PDIV_SHIFT) & PLL36XX_PDIV_MASK;
+	old_kdiv = (pll_con1 >> PLL36XX_KDIV_SHIFT) & PLL36XX_KDIV_MASK;
+
+	return (rate->mdiv != old_mdiv || rate->pdiv != old_pdiv ||
+		rate->kdiv != old_kdiv);
+}
+
+static int samsung_pll36xx_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_con1;
+	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;
 	}
 
-	init.name = name;
-	init.ops = &samsung_pll36xx_clk_ops;
-	init.flags = CLK_GET_RATE_NOCACHE;
-	init.parent_names = &pname;
-	init.num_parents = 1;
+	pll_con0 = __raw_readl(pll->con_reg);
+	pll_con1 = __raw_readl(pll->con_reg + 4);
 
-	pll->hw.init = &init;
-	pll->con_reg = con_reg;
+	if (!(samsung_pll36xx_mpk_change(rate, pll_con0, pll_con1))) {
+		/* If only s change, change just s value only*/
+		pll_con0 &= ~(PLL36XX_SDIV_MASK << PLL36XX_SDIV_SHIFT);
+		pll_con0 |= (rate->sdiv << PLL36XX_SDIV_SHIFT);
+		__raw_writel(pll_con0, pll->con_reg);
 
-	clk = clk_register(NULL, &pll->hw);
-	if (IS_ERR(clk)) {
-		pr_err("%s: failed to register pll clock %s\n", __func__,
-				name);
-		kfree(pll);
+		return 0;
 	}
 
-	if (clk_register_clkdev(clk, name, NULL))
-		pr_err("%s: failed to register lookup for %s", __func__, name);
-
-	return clk;
+	/* Set PLL lock time. */
+	__raw_writel(rate->pdiv * PLL36XX_LOCK_FACTOR, pll->lock_reg);
+
+	 /* Change PLL PMS values */
+	pll_con0 &= ~((PLL36XX_MDIV_MASK << PLL36XX_MDIV_SHIFT) |
+			(PLL36XX_PDIV_MASK << PLL36XX_PDIV_SHIFT) |
+			(PLL36XX_SDIV_MASK << PLL36XX_SDIV_SHIFT));
+	pll_con0 |= (rate->mdiv << PLL36XX_MDIV_SHIFT) |
+			(rate->pdiv << PLL36XX_PDIV_SHIFT) |
+			(rate->sdiv << PLL36XX_SDIV_SHIFT);
+	__raw_writel(pll_con0, pll->con_reg);
+
+	pll_con1 &= ~(PLL36XX_KDIV_MASK << PLL36XX_KDIV_SHIFT);
+	pll_con1 |= rate->kdiv << PLL36XX_KDIV_SHIFT;
+	__raw_writel(pll_con1, pll->con_reg + 4);
+
+	/* wait_lock_time */
+	do {
+		cpu_relax();
+		tmp = __raw_readl(pll->con_reg);
+	} while (!(tmp & (1 << PLL36XX_LOCK_STAT_SHIFT)));
+
+	return 0;
 }
 
+static const struct clk_ops samsung_pll36xx_clk_ops = {
+	.recalc_rate = samsung_pll36xx_recalc_rate,
+	.set_rate = samsung_pll36xx_set_rate,
+	.round_rate = samsung_pll_round_rate,
+};
+
+static const struct clk_ops samsung_pll36xx_clk_min_ops = {
+	.recalc_rate = samsung_pll36xx_recalc_rate,
+};
+
 /*
  * PLL45xx Clock Type
  */
+#define PLL4502_LOCK_FACTOR	400
+#define PLL4508_LOCK_FACTOR	240
 
 #define PLL45XX_MDIV_MASK	(0x3FF)
 #define PLL45XX_PDIV_MASK	(0x3F)
 #define PLL45XX_SDIV_MASK	(0x7)
+#define PLL45XX_AFC_MASK	(0x1F)
 #define PLL45XX_MDIV_SHIFT	(16)
 #define PLL45XX_PDIV_SHIFT	(8)
 #define PLL45XX_SDIV_SHIFT	(0)
+#define PLL45XX_AFC_SHIFT	(0)
 
-struct samsung_clk_pll45xx {
-	struct clk_hw		hw;
-	enum pll45xx_type	type;
-	const void __iomem	*con_reg;
-};
-
-#define to_clk_pll45xx(_hw) container_of(_hw, struct samsung_clk_pll45xx, hw)
+#define PLL45XX_ENABLE		BIT(31)
+#define PLL45XX_LOCKED		BIT(29)
 
 static unsigned long samsung_pll45xx_recalc_rate(struct clk_hw *hw,
 				unsigned long parent_rate)
 {
-	struct samsung_clk_pll45xx *pll = to_clk_pll45xx(hw);
+	struct samsung_clk_pll *pll = to_clk_pll(hw);
 	u32 mdiv, pdiv, sdiv, pll_con;
 	u64 fvco = parent_rate;
 
@@ -208,54 +311,113 @@ static unsigned long samsung_pll45xx_recalc_rate(struct clk_hw *hw,
 	return (unsigned long)fvco;
 }
 
-static const struct clk_ops samsung_pll45xx_clk_ops = {
-	.recalc_rate = samsung_pll45xx_recalc_rate,
-};
-
-struct clk * __init samsung_clk_register_pll45xx(const char *name,
-			const char *pname, const void __iomem *con_reg,
-			enum pll45xx_type type)
+static bool samsung_pll45xx_mp_change(u32 pll_con0, u32 pll_con1,
+				const struct samsung_pll_rate_table *rate)
 {
-	struct samsung_clk_pll45xx *pll;
-	struct clk *clk;
-	struct clk_init_data init;
+	u32 old_mdiv, old_pdiv, old_afc;
 
-	pll = kzalloc(sizeof(*pll), GFP_KERNEL);
-	if (!pll) {
-		pr_err("%s: could not allocate pll clk %s\n", __func__, name);
-		return NULL;
+	old_mdiv = (pll_con0 >> PLL45XX_MDIV_SHIFT) & PLL45XX_MDIV_MASK;
+	old_pdiv = (pll_con0 >> PLL45XX_PDIV_SHIFT) & PLL45XX_PDIV_MASK;
+	old_afc = (pll_con1 >> PLL45XX_AFC_SHIFT) & PLL45XX_AFC_MASK;
+
+	return (old_mdiv != rate->mdiv || old_pdiv != rate->pdiv
+		|| old_afc != rate->afc);
+}
+
+static int samsung_pll45xx_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 con0, con1;
+	ktime_t start;
+
+	/* 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;
 	}
 
-	init.name = name;
-	init.ops = &samsung_pll45xx_clk_ops;
-	init.flags = CLK_GET_RATE_NOCACHE;
-	init.parent_names = &pname;
-	init.num_parents = 1;
+	con0 = __raw_readl(pll->con_reg);
+	con1 = __raw_readl(pll->con_reg + 0x4);
 
-	pll->hw.init = &init;
-	pll->con_reg = con_reg;
-	pll->type = type;
+	if (!(samsung_pll45xx_mp_change(con0, con1, rate))) {
+		/* If only s change, change just s value only*/
+		con0 &= ~(PLL45XX_SDIV_MASK << PLL45XX_SDIV_SHIFT);
+		con0 |= rate->sdiv << PLL45XX_SDIV_SHIFT;
+		__raw_writel(con0, pll->con_reg);
 
-	clk = clk_register(NULL, &pll->hw);
-	if (IS_ERR(clk)) {
-		pr_err("%s: failed to register pll clock %s\n", __func__,
-				name);
-		kfree(pll);
+		return 0;
 	}
 
-	if (clk_register_clkdev(clk, name, NULL))
-		pr_err("%s: failed to register lookup for %s", __func__, name);
+	/* Set PLL PMS values. */
+	con0 &= ~((PLL45XX_MDIV_MASK << PLL45XX_MDIV_SHIFT) |
+			(PLL45XX_PDIV_MASK << PLL45XX_PDIV_SHIFT) |
+			(PLL45XX_SDIV_MASK << PLL45XX_SDIV_SHIFT));
+	con0 |= (rate->mdiv << PLL45XX_MDIV_SHIFT) |
+			(rate->pdiv << PLL45XX_PDIV_SHIFT) |
+			(rate->sdiv << PLL45XX_SDIV_SHIFT);
+
+	/* Set PLL AFC value. */
+	con1 = __raw_readl(pll->con_reg + 0x4);
+	con1 &= ~(PLL45XX_AFC_MASK << PLL45XX_AFC_SHIFT);
+	con1 |= (rate->afc << PLL45XX_AFC_SHIFT);
+
+	/* Set PLL lock time. */
+	switch (pll->type) {
+	case pll_4502:
+		__raw_writel(rate->pdiv * PLL4502_LOCK_FACTOR, pll->lock_reg);
+		break;
+	case pll_4508:
+		__raw_writel(rate->pdiv * PLL4508_LOCK_FACTOR, pll->lock_reg);
+		break;
+	default:
+		break;
+	};
+
+	/* Set new configuration. */
+	__raw_writel(con1, pll->con_reg + 0x4);
+	__raw_writel(con0, pll->con_reg);
+
+	/* Wait for locking. */
+	start = ktime_get();
+	while (!(__raw_readl(pll->con_reg) & PLL45XX_LOCKED)) {
+		ktime_t delta = ktime_sub(ktime_get(), start);
+
+		if (ktime_to_ms(delta) > PLL_TIMEOUT_MS) {
+			pr_err("%s: could not lock PLL %s\n",
+					__func__, __clk_get_name(hw->clk));
+			return -EFAULT;
+		}
+
+		cpu_relax();
+	}
 
-	return clk;
+	return 0;
 }
 
+static const struct clk_ops samsung_pll45xx_clk_ops = {
+	.recalc_rate = samsung_pll45xx_recalc_rate,
+	.round_rate = samsung_pll_round_rate,
+	.set_rate = samsung_pll45xx_set_rate,
+};
+
+static const struct clk_ops samsung_pll45xx_clk_min_ops = {
+	.recalc_rate = samsung_pll45xx_recalc_rate,
+};
+
 /*
  * PLL46xx Clock Type
  */
+#define PLL46XX_LOCK_FACTOR	3000
 
+#define PLL46XX_VSEL_MASK	(1)
 #define PLL46XX_MDIV_MASK	(0x1FF)
 #define PLL46XX_PDIV_MASK	(0x3F)
 #define PLL46XX_SDIV_MASK	(0x7)
+#define PLL46XX_VSEL_SHIFT	(27)
 #define PLL46XX_MDIV_SHIFT	(16)
 #define PLL46XX_PDIV_SHIFT	(8)
 #define PLL46XX_SDIV_SHIFT	(0)
@@ -263,19 +425,20 @@ struct clk * __init samsung_clk_register_pll45xx(const char *name,
 #define PLL46XX_KDIV_MASK	(0xFFFF)
 #define PLL4650C_KDIV_MASK	(0xFFF)
 #define PLL46XX_KDIV_SHIFT	(0)
+#define PLL46XX_MFR_MASK	(0x3F)
+#define PLL46XX_MRR_MASK	(0x1F)
+#define PLL46XX_KDIV_SHIFT	(0)
+#define PLL46XX_MFR_SHIFT	(16)
+#define PLL46XX_MRR_SHIFT	(24)
 
-struct samsung_clk_pll46xx {
-	struct clk_hw		hw;
-	enum pll46xx_type	type;
-	const void __iomem	*con_reg;
-};
-
-#define to_clk_pll46xx(_hw) container_of(_hw, struct samsung_clk_pll46xx, hw)
+#define PLL46XX_ENABLE		BIT(31)
+#define PLL46XX_LOCKED		BIT(29)
+#define PLL46XX_VSEL		BIT(27)
 
 static unsigned long samsung_pll46xx_recalc_rate(struct clk_hw *hw,
 				unsigned long parent_rate)
 {
-	struct samsung_clk_pll46xx *pll = to_clk_pll46xx(hw);
+	struct samsung_clk_pll *pll = to_clk_pll(hw);
 	u32 mdiv, pdiv, sdiv, kdiv, pll_con0, pll_con1, shift;
 	u64 fvco = parent_rate;
 
@@ -295,47 +458,175 @@ static unsigned long samsung_pll46xx_recalc_rate(struct clk_hw *hw,
 	return (unsigned long)fvco;
 }
 
+static bool samsung_pll46xx_mpk_change(u32 pll_con0, u32 pll_con1,
+				const struct samsung_pll_rate_table *rate)
+{
+	u32 old_mdiv, old_pdiv, old_kdiv;
+
+	old_mdiv = (pll_con0 >> PLL46XX_MDIV_SHIFT) & PLL46XX_MDIV_MASK;
+	old_pdiv = (pll_con0 >> PLL46XX_PDIV_SHIFT) & PLL46XX_PDIV_MASK;
+	old_kdiv = (pll_con1 >> PLL46XX_KDIV_SHIFT) & PLL46XX_KDIV_MASK;
+
+	return (old_mdiv != rate->mdiv || old_pdiv != rate->pdiv
+		|| old_kdiv != rate->kdiv);
+}
+
+static int samsung_pll46xx_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 con0, con1, lock;
+	ktime_t start;
+
+	/* 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;
+	}
+
+	con0 = __raw_readl(pll->con_reg);
+	con1 = __raw_readl(pll->con_reg + 0x4);
+
+	if (!(samsung_pll46xx_mpk_change(con0, con1, rate))) {
+		/* If only s change, change just s value only*/
+		con0 &= ~(PLL46XX_SDIV_MASK << PLL46XX_SDIV_SHIFT);
+		con0 |= rate->sdiv << PLL46XX_SDIV_SHIFT;
+		__raw_writel(con0, pll->con_reg);
+
+		return 0;
+	}
+
+	/* Set PLL lock time. */
+	lock = rate->pdiv * PLL46XX_LOCK_FACTOR;
+	if (lock > 0xffff)
+		/* Maximum lock time bitfield is 16-bit. */
+		lock = 0xffff;
+
+	/* Set PLL PMS and VSEL values. */
+	con0 &= ~((PLL46XX_MDIV_MASK << PLL46XX_MDIV_SHIFT) |
+			(PLL46XX_PDIV_MASK << PLL46XX_PDIV_SHIFT) |
+			(PLL46XX_SDIV_MASK << PLL46XX_SDIV_SHIFT) |
+			(PLL46XX_VSEL_MASK << PLL46XX_VSEL_SHIFT));
+	con0 |= (rate->mdiv << PLL46XX_MDIV_SHIFT) |
+			(rate->pdiv << PLL46XX_PDIV_SHIFT) |
+			(rate->sdiv << PLL46XX_SDIV_SHIFT) |
+			(rate->vsel << PLL46XX_VSEL_SHIFT);
+
+	/* Set PLL K, MFR and MRR values. */
+	con1 = __raw_readl(pll->con_reg + 0x4);
+	con1 &= ~((PLL46XX_KDIV_MASK << PLL46XX_KDIV_SHIFT) |
+			(PLL46XX_MFR_MASK << PLL46XX_MFR_SHIFT) |
+			(PLL46XX_MRR_MASK << PLL46XX_MRR_SHIFT));
+	con1 |= (rate->kdiv << PLL46XX_KDIV_SHIFT) |
+			(rate->mfr << PLL46XX_MFR_SHIFT) |
+			(rate->mrr << PLL46XX_MRR_SHIFT);
+
+	/* Write configuration to PLL */
+	__raw_writel(lock, pll->lock_reg);
+	__raw_writel(con0, pll->con_reg);
+	__raw_writel(con1, pll->con_reg + 0x4);
+
+	/* Wait for locking. */
+	start = ktime_get();
+	while (!(__raw_readl(pll->con_reg) & PLL46XX_LOCKED)) {
+		ktime_t delta = ktime_sub(ktime_get(), start);
+
+		if (ktime_to_ms(delta) > PLL_TIMEOUT_MS) {
+			pr_err("%s: could not lock PLL %s\n",
+					__func__, __clk_get_name(hw->clk));
+			return -EFAULT;
+		}
+
+		cpu_relax();
+	}
+
+	return 0;
+}
+
 static const struct clk_ops samsung_pll46xx_clk_ops = {
 	.recalc_rate = samsung_pll46xx_recalc_rate,
+	.round_rate = samsung_pll_round_rate,
+	.set_rate = samsung_pll46xx_set_rate,
+};
+
+static const struct clk_ops samsung_pll46xx_clk_min_ops = {
+	.recalc_rate = samsung_pll46xx_recalc_rate,
 };
 
-struct clk * __init samsung_clk_register_pll46xx(const char *name,
-			const char *pname, const void __iomem *con_reg,
-			enum pll46xx_type type)
+/*
+ * PLL6552 Clock Type
+ */
+
+#define PLL6552_MDIV_MASK	0x3ff
+#define PLL6552_PDIV_MASK	0x3f
+#define PLL6552_SDIV_MASK	0x7
+#define PLL6552_MDIV_SHIFT	16
+#define PLL6552_PDIV_SHIFT	8
+#define PLL6552_SDIV_SHIFT	0
+
+static unsigned long samsung_pll6552_recalc_rate(struct clk_hw *hw,
+						unsigned long parent_rate)
 {
-	struct samsung_clk_pll46xx *pll;
-	struct clk *clk;
-	struct clk_init_data init;
+	struct samsung_clk_pll *pll = to_clk_pll(hw);
+	u32 mdiv, pdiv, sdiv, pll_con;
+	u64 fvco = parent_rate;
 
-	pll = kzalloc(sizeof(*pll), GFP_KERNEL);
-	if (!pll) {
-		pr_err("%s: could not allocate pll clk %s\n", __func__, name);
-		return NULL;
-	}
+	pll_con = __raw_readl(pll->con_reg);
+	mdiv = (pll_con >> PLL6552_MDIV_SHIFT) & PLL6552_MDIV_MASK;
+	pdiv = (pll_con >> PLL6552_PDIV_SHIFT) & PLL6552_PDIV_MASK;
+	sdiv = (pll_con >> PLL6552_SDIV_SHIFT) & PLL6552_SDIV_MASK;
 
-	init.name = name;
-	init.ops = &samsung_pll46xx_clk_ops;
-	init.flags = CLK_GET_RATE_NOCACHE;
-	init.parent_names = &pname;
-	init.num_parents = 1;
+	fvco *= mdiv;
+	do_div(fvco, (pdiv << sdiv));
 
-	pll->hw.init = &init;
-	pll->con_reg = con_reg;
-	pll->type = type;
+	return (unsigned long)fvco;
+}
 
-	clk = clk_register(NULL, &pll->hw);
-	if (IS_ERR(clk)) {
-		pr_err("%s: failed to register pll clock %s\n", __func__,
-				name);
-		kfree(pll);
-	}
+static const struct clk_ops samsung_pll6552_clk_ops = {
+	.recalc_rate = samsung_pll6552_recalc_rate,
+};
 
-	if (clk_register_clkdev(clk, name, NULL))
-		pr_err("%s: failed to register lookup for %s", __func__, name);
+/*
+ * PLL6553 Clock Type
+ */
 
-	return clk;
+#define PLL6553_MDIV_MASK	0xff
+#define PLL6553_PDIV_MASK	0x3f
+#define PLL6553_SDIV_MASK	0x7
+#define PLL6553_KDIV_MASK	0xffff
+#define PLL6553_MDIV_SHIFT	16
+#define PLL6553_PDIV_SHIFT	8
+#define PLL6553_SDIV_SHIFT	0
+#define PLL6553_KDIV_SHIFT	0
+
+static unsigned long samsung_pll6553_recalc_rate(struct clk_hw *hw,
+						unsigned long parent_rate)
+{
+	struct samsung_clk_pll *pll = to_clk_pll(hw);
+	u32 mdiv, pdiv, sdiv, kdiv, pll_con0, pll_con1;
+	u64 fvco = parent_rate;
+
+	pll_con0 = __raw_readl(pll->con_reg);
+	pll_con1 = __raw_readl(pll->con_reg + 0x4);
+	mdiv = (pll_con0 >> PLL6553_MDIV_SHIFT) & PLL6553_MDIV_MASK;
+	pdiv = (pll_con0 >> PLL6553_PDIV_SHIFT) & PLL6553_PDIV_MASK;
+	sdiv = (pll_con0 >> PLL6553_SDIV_SHIFT) & PLL6553_SDIV_MASK;
+	kdiv = (pll_con1 >> PLL6553_KDIV_SHIFT) & PLL6553_KDIV_MASK;
+
+	fvco *= (mdiv << 16) + kdiv;
+	do_div(fvco, (pdiv << sdiv));
+	fvco >>= 16;
+
+	return (unsigned long)fvco;
 }
 
+static const struct clk_ops samsung_pll6553_clk_ops = {
+	.recalc_rate = samsung_pll6553_recalc_rate,
+};
+
 /*
  * PLL2550x Clock Type
  */
@@ -418,3 +709,117 @@ 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,
+						void __iomem *base)
+{
+	struct samsung_clk_pll *pll;
+	struct clk *clk;
+	struct clk_init_data init;
+	int ret, len;
+
+	pll = kzalloc(sizeof(*pll), GFP_KERNEL);
+	if (!pll) {
+		pr_err("%s: could not allocate pll clk %s\n",
+			__func__, pll_clk->name);
+		return;
+	}
+
+	init.name = pll_clk->name;
+	init.flags = pll_clk->flags;
+	init.parent_names = &pll_clk->parent_name;
+	init.num_parents = 1;
+
+	if (pll_clk->rate_table) {
+		/* find count of rates in rate_table */
+		for (len = 0; pll_clk->rate_table[len].rate != 0; )
+			len++;
+
+		pll->rate_count = len;
+		pll->rate_table = kmemdup(pll_clk->rate_table,
+					pll->rate_count *
+					sizeof(struct samsung_pll_rate_table),
+					GFP_KERNEL);
+		WARN(!pll->rate_table,
+			"%s: could not allocate rate table for %s\n",
+			__func__, pll_clk->name);
+	}
+
+	switch (pll_clk->type) {
+	/* clk_ops for 35xx and 2550 are similar */
+	case pll_35xx:
+	case pll_2550:
+		if (!pll->rate_table)
+			init.ops = &samsung_pll35xx_clk_min_ops;
+		else
+			init.ops = &samsung_pll35xx_clk_ops;
+		break;
+	case pll_4500:
+		init.ops = &samsung_pll45xx_clk_min_ops;
+		break;
+	case pll_4502:
+	case pll_4508:
+		if (!pll->rate_table)
+			init.ops = &samsung_pll45xx_clk_min_ops;
+		else
+			init.ops = &samsung_pll45xx_clk_ops;
+		break;
+	/* clk_ops for 36xx and 2650 are similar */
+	case pll_36xx:
+	case pll_2650:
+		if (!pll->rate_table)
+			init.ops = &samsung_pll36xx_clk_min_ops;
+		else
+			init.ops = &samsung_pll36xx_clk_ops;
+		break;
+	case pll_6552:
+		init.ops = &samsung_pll6552_clk_ops;
+		break;
+	case pll_6553:
+		init.ops = &samsung_pll6553_clk_ops;
+		break;
+	case pll_4600:
+	case pll_4650:
+	case pll_4650c:
+		if (!pll->rate_table)
+			init.ops = &samsung_pll46xx_clk_min_ops;
+		else
+			init.ops = &samsung_pll46xx_clk_ops;
+		break;
+	default:
+		pr_warn("%s: Unknown pll type for pll clk %s\n",
+			__func__, pll_clk->name);
+	}
+
+	pll->hw.init = &init;
+	pll->type = pll_clk->type;
+	pll->lock_reg = base + pll_clk->lock_offset;
+	pll->con_reg = base + pll_clk->con_offset;
+
+	clk = clk_register(NULL, &pll->hw);
+	if (IS_ERR(clk)) {
+		pr_err("%s: failed to register pll clock %s : %ld\n",
+			__func__, pll_clk->name, PTR_ERR(clk));
+		kfree(pll);
+		return;
+	}
+
+	samsung_clk_add_lookup(clk, pll_clk->id);
+
+	if (!pll_clk->alias)
+		return;
+
+	ret = clk_register_clkdev(clk, pll_clk->alias, pll_clk->dev_name);
+	if (ret)
+		pr_err("%s: failed to register lookup for %s : %d",
+			__func__, pll_clk->name, ret);
+}
+
+void __init samsung_clk_register_pll(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);
+}