Merge branch 'clk-actions' into clk-next

* clk-actions:
  clk: actions: Add S900 SoC clock support
  clk: actions: Add pll clock support
  clk: actions: Add composite clock support
  clk: actions: Add fixed factor clock support
  clk: actions: Add factor clock support
  clk: actions: Add divider clock support
  clk: actions: Add mux clock support
  clk: actions: Add gate clock support
  clk: actions: Add common clock driver support
  dt-bindings: clock: Add Actions S900 clock bindings

22 files changed, 2437 insertions, 0 deletions

diff --git a/Documentation/devicetree/bindings/clock/actions,s900-cmu.txt b/Documentation/devicetree/bindings/clock/actions,s900-cmu.txt
new file mode 100644
index 000000000000..93e4fb827cd6
--- /dev/null
+++ b/Documentation/devicetree/bindings/clock/actions,s900-cmu.txt
@@ -0,0 +1,47 @@
+* Actions S900 Clock Management Unit (CMU)
+
+The Actions S900 clock management unit generates and supplies clock to various
+controllers within the SoC. The clock binding described here is applicable to
+S900 SoC.
+
+Required Properties:
+
+- compatible: should be "actions,s900-cmu"
+- reg: physical base address of the controller and length of memory mapped
+  region.
+- clocks: Reference to the parent clocks ("hosc", "losc")
+- #clock-cells: should be 1.
+
+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/actions,s900-cmu.h header and can be used in device
+tree sources.
+
+External clocks:
+
+The hosc clock used as input for the plls is generated outside the SoC. It is
+expected that it is defined using standard clock bindings as "hosc".
+
+Actions S900 CMU also requires one more clock:
+ - "losc" - internal low frequency oscillator
+
+Example: Clock Management Unit node:
+
+        cmu: clock-controller@e0160000 {
+                compatible = "actions,s900-cmu";
+                reg = <0x0 0xe0160000 0x0 0x1000>;
+                clocks = <&hosc>, <&losc>;
+                #clock-cells = <1>;
+        };
+
+Example: UART controller node that consumes clock generated by the clock
+management unit:
+
+        uart: serial@e012a000 {
+                compatible = "actions,s900-uart", "actions,owl-uart";
+                reg = <0x0 0xe012a000 0x0 0x2000>;
+                interrupts = <GIC_SPI 34 IRQ_TYPE_LEVEL_HIGH>;
+                clocks = <&cmu CLK_UART5>;
+        };
diff --git a/drivers/clk/Kconfig b/drivers/clk/Kconfig
index 41492e980ef4..24a5bc3a2ddb 100644
--- a/drivers/clk/Kconfig
+++ b/drivers/clk/Kconfig
@@ -279,6 +279,7 @@ config COMMON_CLK_STM32H7
 	---help---
 	  Support for stm32h7 SoC family clocks
 
+source "drivers/clk/actions/Kconfig"
 source "drivers/clk/bcm/Kconfig"
 source "drivers/clk/hisilicon/Kconfig"
 source "drivers/clk/imgtec/Kconfig"
diff --git a/drivers/clk/Makefile b/drivers/clk/Makefile
index de6d06ac790b..35896e2ae95a 100644
--- a/drivers/clk/Makefile
+++ b/drivers/clk/Makefile
@@ -59,6 +59,7 @@ obj-$(CONFIG_COMMON_CLK_WM831X)		+= clk-wm831x.o
 obj-$(CONFIG_COMMON_CLK_XGENE)		+= clk-xgene.o
 
 # please keep this section sorted lexicographically by directory path name
+obj-y					+= actions/
 obj-$(CONFIG_COMMON_CLK_AT91)		+= at91/
 obj-$(CONFIG_ARCH_ARTPEC)		+= axis/
 obj-$(CONFIG_ARC_PLAT_AXS10X)		+= axs10x/
diff --git a/drivers/clk/actions/Kconfig b/drivers/clk/actions/Kconfig
new file mode 100644
index 000000000000..8854adb37847
--- /dev/null
+++ b/drivers/clk/actions/Kconfig
@@ -0,0 +1,14 @@
+config CLK_ACTIONS
+	bool "Clock driver for Actions Semi SoCs"
+	depends on ARCH_ACTIONS || COMPILE_TEST
+	default ARCH_ACTIONS
+
+if CLK_ACTIONS
+
+# SoC Drivers
+
+config CLK_OWL_S900
+	bool "Support for the Actions Semi OWL S900 clocks"
+	depends on (ARM64 && ARCH_ACTIONS) || COMPILE_TEST
+	default ARM64 && ARCH_ACTIONS
+endif
diff --git a/drivers/clk/actions/Makefile b/drivers/clk/actions/Makefile
new file mode 100644
index 000000000000..76e431434d10
--- /dev/null
+++ b/drivers/clk/actions/Makefile
@@ -0,0 +1,12 @@
+obj-$(CONFIG_CLK_ACTIONS)	+= clk-owl.o
+
+clk-owl-y			+= owl-common.o
+clk-owl-y			+= owl-gate.o
+clk-owl-y			+= owl-mux.o
+clk-owl-y			+= owl-divider.o
+clk-owl-y			+= owl-factor.o
+clk-owl-y			+= owl-composite.o
+clk-owl-y			+= owl-pll.o
+
+# SoC support
+obj-$(CONFIG_CLK_OWL_S900)	+= owl-s900.o
diff --git a/drivers/clk/actions/owl-common.c b/drivers/clk/actions/owl-common.c
new file mode 100644
index 000000000000..61c1071b5180
--- /dev/null
+++ b/drivers/clk/actions/owl-common.c
@@ -0,0 +1,89 @@
+// SPDX-License-Identifier: GPL-2.0+
+//
+// OWL common clock driver
+//
+// Copyright (c) 2014 Actions Semi Inc.
+// Author: David Liu <liuwei@actions-semi.com>
+//
+// Copyright (c) 2018 Linaro Ltd.
+// Author: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
+
+#include <linux/of_address.h>
+#include <linux/of_platform.h>
+#include <linux/platform_device.h>
+#include <linux/regmap.h>
+
+#include "owl-common.h"
+
+static const struct regmap_config owl_regmap_config = {
+	.reg_bits	= 32,
+	.reg_stride	= 4,
+	.val_bits	= 32,
+	.max_register	= 0x00cc,
+	.fast_io	= true,
+};
+
+static void owl_clk_set_regmap(const struct owl_clk_desc *desc,
+			 struct regmap *regmap)
+{
+	int i;
+	struct owl_clk_common *clks;
+
+	for (i = 0; i < desc->num_clks; i++) {
+		clks = desc->clks[i];
+		if (!clks)
+			continue;
+
+		clks->regmap = regmap;
+	}
+}
+
+int owl_clk_regmap_init(struct platform_device *pdev,
+			 const struct owl_clk_desc *desc)
+{
+	void __iomem *base;
+	struct regmap *regmap;
+	struct resource *res;
+
+	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+	base = devm_ioremap_resource(&pdev->dev, res);
+	if (IS_ERR(base))
+		return PTR_ERR(base);
+
+	regmap = devm_regmap_init_mmio(&pdev->dev, base, &owl_regmap_config);
+	if (IS_ERR(regmap)) {
+		pr_err("failed to init regmap\n");
+		return PTR_ERR(regmap);
+	}
+
+	owl_clk_set_regmap(desc, regmap);
+
+	return 0;
+}
+
+int owl_clk_probe(struct device *dev, struct clk_hw_onecell_data *hw_clks)
+{
+	int i, ret;
+	struct clk_hw *hw;
+
+	for (i = 0; i < hw_clks->num; i++) {
+
+		hw = hw_clks->hws[i];
+
+		if (IS_ERR_OR_NULL(hw))
+			continue;
+
+		ret = devm_clk_hw_register(dev, hw);
+		if (ret) {
+			dev_err(dev, "Couldn't register clock %d - %s\n",
+				i, hw->init->name);
+			return ret;
+		}
+	}
+
+	ret = devm_of_clk_add_hw_provider(dev, of_clk_hw_onecell_get, hw_clks);
+	if (ret)
+		dev_err(dev, "Failed to add clock provider\n");
+
+	return ret;
+}
diff --git a/drivers/clk/actions/owl-common.h b/drivers/clk/actions/owl-common.h
new file mode 100644
index 000000000000..4fd726ec54a6
--- /dev/null
+++ b/drivers/clk/actions/owl-common.h
@@ -0,0 +1,41 @@
+// SPDX-License-Identifier: GPL-2.0+
+//
+// OWL common clock driver
+//
+// Copyright (c) 2014 Actions Semi Inc.
+// Author: David Liu <liuwei@actions-semi.com>
+//
+// Copyright (c) 2018 Linaro Ltd.
+// Author: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
+
+#ifndef _OWL_COMMON_H_
+#define _OWL_COMMON_H_
+
+#include <linux/clk-provider.h>
+#include <linux/of_platform.h>
+#include <linux/regmap.h>
+
+struct device_node;
+
+struct owl_clk_common {
+	struct regmap			*regmap;
+	struct clk_hw			hw;
+};
+
+struct owl_clk_desc {
+	struct owl_clk_common		**clks;
+	unsigned long			num_clks;
+	struct clk_hw_onecell_data	*hw_clks;
+};
+
+static inline struct owl_clk_common *
+	hw_to_owl_clk_common(const struct clk_hw *hw)
+{
+	return container_of(hw, struct owl_clk_common, hw);
+}
+
+int owl_clk_regmap_init(struct platform_device *pdev,
+			 const struct owl_clk_desc *desc);
+int owl_clk_probe(struct device *dev, struct clk_hw_onecell_data *hw_clks);
+
+#endif /* _OWL_COMMON_H_ */
diff --git a/drivers/clk/actions/owl-composite.c b/drivers/clk/actions/owl-composite.c
new file mode 100644
index 000000000000..101706e0c66f
--- /dev/null
+++ b/drivers/clk/actions/owl-composite.c
@@ -0,0 +1,199 @@
+// SPDX-License-Identifier: GPL-2.0+
+//
+// OWL composite clock driver
+//
+// Copyright (c) 2014 Actions Semi Inc.
+// Author: David Liu <liuwei@actions-semi.com>
+//
+// Copyright (c) 2018 Linaro Ltd.
+// Author: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
+
+#include <linux/clk-provider.h>
+#include <linux/regmap.h>
+
+#include "owl-composite.h"
+
+static u8 owl_comp_get_parent(struct clk_hw *hw)
+{
+	struct owl_composite *comp = hw_to_owl_comp(hw);
+
+	return owl_mux_helper_get_parent(&comp->common, &comp->mux_hw);
+}
+
+static int owl_comp_set_parent(struct clk_hw *hw, u8 index)
+{
+	struct owl_composite *comp = hw_to_owl_comp(hw);
+
+	return owl_mux_helper_set_parent(&comp->common, &comp->mux_hw, index);
+}
+
+static void owl_comp_disable(struct clk_hw *hw)
+{
+	struct owl_composite *comp = hw_to_owl_comp(hw);
+	struct owl_clk_common *common = &comp->common;
+
+	owl_gate_set(common, &comp->gate_hw, false);
+}
+
+static int owl_comp_enable(struct clk_hw *hw)
+{
+	struct owl_composite *comp = hw_to_owl_comp(hw);
+	struct owl_clk_common *common = &comp->common;
+
+	owl_gate_set(common, &comp->gate_hw, true);
+
+	return 0;
+}
+
+static int owl_comp_is_enabled(struct clk_hw *hw)
+{
+	struct owl_composite *comp = hw_to_owl_comp(hw);
+	struct owl_clk_common *common = &comp->common;
+
+	return owl_gate_clk_is_enabled(common, &comp->gate_hw);
+}
+
+static long owl_comp_div_round_rate(struct clk_hw *hw, unsigned long rate,
+				unsigned long *parent_rate)
+{
+	struct owl_composite *comp = hw_to_owl_comp(hw);
+
+	return owl_divider_helper_round_rate(&comp->common, &comp->rate.div_hw,
+					rate, parent_rate);
+}
+
+static unsigned long owl_comp_div_recalc_rate(struct clk_hw *hw,
+					  unsigned long parent_rate)
+{
+	struct owl_composite *comp = hw_to_owl_comp(hw);
+
+	return owl_divider_helper_recalc_rate(&comp->common, &comp->rate.div_hw,
+					parent_rate);
+}
+
+static int owl_comp_div_set_rate(struct clk_hw *hw, unsigned long rate,
+				unsigned long parent_rate)
+{
+	struct owl_composite *comp = hw_to_owl_comp(hw);
+
+	return owl_divider_helper_set_rate(&comp->common, &comp->rate.div_hw,
+					rate, parent_rate);
+}
+
+static long owl_comp_fact_round_rate(struct clk_hw *hw, unsigned long rate,
+			unsigned long *parent_rate)
+{
+	struct owl_composite *comp = hw_to_owl_comp(hw);
+
+	return owl_factor_helper_round_rate(&comp->common,
+					&comp->rate.factor_hw,
+					rate, parent_rate);
+}
+
+static unsigned long owl_comp_fact_recalc_rate(struct clk_hw *hw,
+			unsigned long parent_rate)
+{
+	struct owl_composite *comp = hw_to_owl_comp(hw);
+
+	return owl_factor_helper_recalc_rate(&comp->common,
+					&comp->rate.factor_hw,
+					parent_rate);
+}
+
+static int owl_comp_fact_set_rate(struct clk_hw *hw, unsigned long rate,
+			unsigned long parent_rate)
+{
+	struct owl_composite *comp = hw_to_owl_comp(hw);
+
+	return owl_factor_helper_set_rate(&comp->common,
+					&comp->rate.factor_hw,
+					rate, parent_rate);
+}
+
+static long owl_comp_fix_fact_round_rate(struct clk_hw *hw, unsigned long rate,
+			unsigned long *parent_rate)
+{
+	struct owl_composite *comp = hw_to_owl_comp(hw);
+	struct clk_fixed_factor *fix_fact_hw = &comp->rate.fix_fact_hw;
+
+	return comp->fix_fact_ops->round_rate(&fix_fact_hw->hw, rate, parent_rate);
+}
+
+static unsigned long owl_comp_fix_fact_recalc_rate(struct clk_hw *hw,
+			unsigned long parent_rate)
+{
+	struct owl_composite *comp = hw_to_owl_comp(hw);
+	struct clk_fixed_factor *fix_fact_hw = &comp->rate.fix_fact_hw;
+
+	return comp->fix_fact_ops->recalc_rate(&fix_fact_hw->hw, parent_rate);
+
+}
+
+static int owl_comp_fix_fact_set_rate(struct clk_hw *hw, unsigned long rate,
+			unsigned long parent_rate)
+{
+	/*
+	 * We must report success but we can do so unconditionally because
+	 * owl_comp_fix_fact_round_rate returns values that ensure this call is
+	 * a nop.
+	 */
+
+	return 0;
+}
+
+const struct clk_ops owl_comp_div_ops = {
+	/* mux_ops */
+	.get_parent	= owl_comp_get_parent,
+	.set_parent	= owl_comp_set_parent,
+
+	/* gate_ops */
+	.disable	= owl_comp_disable,
+	.enable		= owl_comp_enable,
+	.is_enabled	= owl_comp_is_enabled,
+
+	/* div_ops */
+	.round_rate	= owl_comp_div_round_rate,
+	.recalc_rate	= owl_comp_div_recalc_rate,
+	.set_rate	= owl_comp_div_set_rate,
+};
+
+
+const struct clk_ops owl_comp_fact_ops = {
+	/* mux_ops */
+	.get_parent	= owl_comp_get_parent,
+	.set_parent	= owl_comp_set_parent,
+
+	/* gate_ops */
+	.disable	= owl_comp_disable,
+	.enable		= owl_comp_enable,
+	.is_enabled	= owl_comp_is_enabled,
+
+	/* fact_ops */
+	.round_rate	= owl_comp_fact_round_rate,
+	.recalc_rate	= owl_comp_fact_recalc_rate,
+	.set_rate	= owl_comp_fact_set_rate,
+};
+
+const struct clk_ops owl_comp_fix_fact_ops = {
+	/* gate_ops */
+	.disable	= owl_comp_disable,
+	.enable		= owl_comp_enable,
+	.is_enabled	= owl_comp_is_enabled,
+
+	/* fix_fact_ops */
+	.round_rate	= owl_comp_fix_fact_round_rate,
+	.recalc_rate	= owl_comp_fix_fact_recalc_rate,
+	.set_rate	= owl_comp_fix_fact_set_rate,
+};
+
+
+const struct clk_ops owl_comp_pass_ops = {
+	/* mux_ops */
+	.get_parent	= owl_comp_get_parent,
+	.set_parent	= owl_comp_set_parent,
+
+	/* gate_ops */
+	.disable	= owl_comp_disable,
+	.enable		= owl_comp_enable,
+	.is_enabled	= owl_comp_is_enabled,
+};
diff --git a/drivers/clk/actions/owl-composite.h b/drivers/clk/actions/owl-composite.h
new file mode 100644
index 000000000000..b410ed5bf308
--- /dev/null
+++ b/drivers/clk/actions/owl-composite.h
@@ -0,0 +1,124 @@
+// SPDX-License-Identifier: GPL-2.0+
+//
+// OWL composite clock driver
+//
+// Copyright (c) 2014 Actions Semi Inc.
+// Author: David Liu <liuwei@actions-semi.com>
+//
+// Copyright (c) 2018 Linaro Ltd.
+// Author: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
+
+#ifndef _OWL_COMPOSITE_H_
+#define _OWL_COMPOSITE_H_
+
+#include "owl-common.h"
+#include "owl-mux.h"
+#include "owl-gate.h"
+#include "owl-factor.h"
+#include "owl-fixed-factor.h"
+#include "owl-divider.h"
+
+union owl_rate {
+	struct owl_divider_hw	div_hw;
+	struct owl_factor_hw	factor_hw;
+	struct clk_fixed_factor	fix_fact_hw;
+};
+
+struct owl_composite {
+	struct owl_mux_hw	mux_hw;
+	struct owl_gate_hw	gate_hw;
+	union owl_rate		rate;
+
+	const struct clk_ops	*fix_fact_ops;
+
+	struct owl_clk_common	common;
+};
+
+#define OWL_COMP_DIV(_struct, _name, _parent,				\
+		     _mux, _gate, _div, _flags)				\
+	struct owl_composite _struct = {				\
+		.mux_hw		= _mux,					\
+		.gate_hw	= _gate,				\
+		.rate.div_hw	= _div,					\
+		.common = {						\
+			.regmap		= NULL,				\
+			.hw.init	= CLK_HW_INIT_PARENTS(_name,	\
+						     _parent,		\
+						      &owl_comp_div_ops,\
+						     _flags),		\
+		},							\
+	}
+
+#define OWL_COMP_DIV_FIXED(_struct, _name, _parent,			\
+		     _gate, _div, _flags)				\
+	struct owl_composite _struct = {				\
+		.gate_hw	= _gate,				\
+		.rate.div_hw	= _div,					\
+		.common = {						\
+			.regmap		= NULL,				\
+			.hw.init	= CLK_HW_INIT(_name,		\
+						     _parent,		\
+						      &owl_comp_div_ops,\
+						     _flags),		\
+		},							\
+	}
+
+#define OWL_COMP_FACTOR(_struct, _name, _parent,			\
+			_mux, _gate, _factor, _flags)			\
+	struct owl_composite _struct = {				\
+		.mux_hw		= _mux,					\
+		.gate_hw	= _gate,				\
+		.rate.factor_hw	= _factor,				\
+		.common = {						\
+			.regmap		= NULL,				\
+			.hw.init	= CLK_HW_INIT_PARENTS(_name,	\
+						     _parent,		\
+						     &owl_comp_fact_ops,\
+						     _flags),		\
+		},							\
+	}
+
+#define OWL_COMP_FIXED_FACTOR(_struct, _name, _parent,			\
+			_gate, _mul, _div, _flags)			\
+	struct owl_composite _struct = {				\
+		.gate_hw		= _gate,			\
+		.rate.fix_fact_hw.mult	= _mul,				\
+		.rate.fix_fact_hw.div	= _div,				\
+		.fix_fact_ops		= &clk_fixed_factor_ops,	\
+		.common = {						\
+			.regmap		= NULL,				\
+			.hw.init	= CLK_HW_INIT(_name,		\
+						 _parent,		\
+						 &owl_comp_fix_fact_ops,\
+						 _flags),		\
+		},							\
+	}
+
+#define OWL_COMP_PASS(_struct, _name, _parent,				\
+		      _mux, _gate, _flags)				\
+	struct owl_composite _struct = {				\
+		.mux_hw		= _mux,					\
+		.gate_hw	= _gate,				\
+		.common = {						\
+			.regmap		= NULL,				\
+			.hw.init	= CLK_HW_INIT_PARENTS(_name,	\
+						     _parent,		\
+						     &owl_comp_pass_ops,\
+						     _flags),		\
+		},							\
+	}
+
+static inline struct owl_composite *hw_to_owl_comp(const struct clk_hw *hw)
+{
+	struct owl_clk_common *common = hw_to_owl_clk_common(hw);
+
+	return container_of(common, struct owl_composite, common);
+}
+
+extern const struct clk_ops owl_comp_div_ops;
+extern const struct clk_ops owl_comp_fact_ops;
+extern const struct clk_ops owl_comp_fix_fact_ops;
+extern const struct clk_ops owl_comp_pass_ops;
+extern const struct clk_ops clk_fixed_factor_ops;
+
+#endif /* _OWL_COMPOSITE_H_ */
diff --git a/drivers/clk/actions/owl-divider.c b/drivers/clk/actions/owl-divider.c
new file mode 100644
index 000000000000..cddac00fe324
--- /dev/null
+++ b/drivers/clk/actions/owl-divider.c
@@ -0,0 +1,94 @@
+// SPDX-License-Identifier: GPL-2.0+
+//
+// OWL divider clock driver
+//
+// Copyright (c) 2014 Actions Semi Inc.
+// Author: David Liu <liuwei@actions-semi.com>
+//
+// Copyright (c) 2018 Linaro Ltd.
+// Author: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
+
+#include <linux/clk-provider.h>
+#include <linux/regmap.h>
+
+#include "owl-divider.h"
+
+long owl_divider_helper_round_rate(struct owl_clk_common *common,
+				const struct owl_divider_hw *div_hw,
+				unsigned long rate,
+				unsigned long *parent_rate)
+{
+	return divider_round_rate(&common->hw, rate, parent_rate,
+				  div_hw->table, div_hw->width,
+				  div_hw->div_flags);
+}
+
+static long owl_divider_round_rate(struct clk_hw *hw, unsigned long rate,
+				unsigned long *parent_rate)
+{
+	struct owl_divider *div = hw_to_owl_divider(hw);
+
+	return owl_divider_helper_round_rate(&div->common, &div->div_hw,
+					     rate, parent_rate);
+}
+
+unsigned long owl_divider_helper_recalc_rate(struct owl_clk_common *common,
+					 const struct owl_divider_hw *div_hw,
+					 unsigned long parent_rate)
+{
+	unsigned long val;
+	unsigned int reg;
+
+	regmap_read(common->regmap, div_hw->reg, &reg);
+	val = reg >> div_hw->shift;
+	val &= (1 << div_hw->width) - 1;
+
+	return divider_recalc_rate(&common->hw, parent_rate,
+				   val, div_hw->table,
+				   div_hw->div_flags,
+				   div_hw->width);
+}
+
+static unsigned long owl_divider_recalc_rate(struct clk_hw *hw,
+					  unsigned long parent_rate)
+{
+	struct owl_divider *div = hw_to_owl_divider(hw);
+
+	return owl_divider_helper_recalc_rate(&div->common,
+					      &div->div_hw, parent_rate);
+}
+
+int owl_divider_helper_set_rate(const struct owl_clk_common *common,
+				const struct owl_divider_hw *div_hw,
+				unsigned long rate,
+				unsigned long parent_rate)
+{
+	unsigned long val;
+	unsigned int reg;
+
+	val = divider_get_val(rate, parent_rate, div_hw->table,
+			      div_hw->width, 0);
+
+	regmap_read(common->regmap, div_hw->reg, &reg);
+	reg &= ~GENMASK(div_hw->width + div_hw->shift - 1, div_hw->shift);
+
+	regmap_write(common->regmap, div_hw->reg,
+			  reg | (val << div_hw->shift));
+
+	return 0;
+}
+
+static int owl_divider_set_rate(struct clk_hw *hw, unsigned long rate,
+				unsigned long parent_rate)
+{
+	struct owl_divider *div = hw_to_owl_divider(hw);
+
+	return owl_divider_helper_set_rate(&div->common, &div->div_hw,
+					rate, parent_rate);
+}
+
+const struct clk_ops owl_divider_ops = {
+	.recalc_rate = owl_divider_recalc_rate,
+	.round_rate = owl_divider_round_rate,
+	.set_rate = owl_divider_set_rate,
+};
diff --git a/drivers/clk/actions/owl-divider.h b/drivers/clk/actions/owl-divider.h
new file mode 100644
index 000000000000..92d3e3d23967
--- /dev/null
+++ b/drivers/clk/actions/owl-divider.h
@@ -0,0 +1,75 @@
+// SPDX-License-Identifier: GPL-2.0+
+//
+// OWL divider clock driver
+//
+// Copyright (c) 2014 Actions Semi Inc.
+// Author: David Liu <liuwei@actions-semi.com>
+//
+// Copyright (c) 2018 Linaro Ltd.
+// Author: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
+
+#ifndef _OWL_DIVIDER_H_
+#define _OWL_DIVIDER_H_
+
+#include "owl-common.h"
+
+struct owl_divider_hw {
+	u32			reg;
+	u8			shift;
+	u8			width;
+	u8			div_flags;
+	struct clk_div_table	*table;
+};
+
+struct owl_divider {
+	struct owl_divider_hw	div_hw;
+	struct owl_clk_common	common;
+};
+
+#define OWL_DIVIDER_HW(_reg, _shift, _width, _div_flags, _table)	\
+	{								\
+		.reg		= _reg,					\
+		.shift		= _shift,				\
+		.width		= _width,				\
+		.div_flags	= _div_flags,				\
+		.table		= _table,				\
+	}
+
+#define OWL_DIVIDER(_struct, _name, _parent, _reg,			\
+		    _shift, _width, _table, _div_flags, _flags)		\
+	struct owl_divider _struct = {					\
+		.div_hw	= OWL_DIVIDER_HW(_reg, _shift, _width,		\
+					 _div_flags, _table),		\
+		.common = {						\
+			.regmap		= NULL,				\
+			.hw.init	= CLK_HW_INIT(_name,		\
+						      _parent,		\
+						      &owl_divider_ops,	\
+						      _flags),		\
+		},							\
+	}
+
+static inline struct owl_divider *hw_to_owl_divider(const struct clk_hw *hw)
+{
+	struct owl_clk_common *common = hw_to_owl_clk_common(hw);
+
+	return container_of(common, struct owl_divider, common);
+}
+
+long owl_divider_helper_round_rate(struct owl_clk_common *common,
+				const struct owl_divider_hw *div_hw,
+				unsigned long rate,
+				unsigned long *parent_rate);
+
+unsigned long owl_divider_helper_recalc_rate(struct owl_clk_common *common,
+					 const struct owl_divider_hw *div_hw,
+					 unsigned long parent_rate);
+
+int owl_divider_helper_set_rate(const struct owl_clk_common *common,
+				const struct owl_divider_hw *div_hw,
+				unsigned long rate,
+				unsigned long parent_rate);
+
+extern const struct clk_ops owl_divider_ops;
+
+#endif /* _OWL_DIVIDER_H_ */
diff --git a/drivers/clk/actions/owl-factor.c b/drivers/clk/actions/owl-factor.c
new file mode 100644
index 000000000000..317d4a9e112e
--- /dev/null
+++ b/drivers/clk/actions/owl-factor.c
@@ -0,0 +1,222 @@
+// SPDX-License-Identifier: GPL-2.0+
+//
+// OWL factor clock driver
+//
+// Copyright (c) 2014 Actions Semi Inc.
+// Author: David Liu <liuwei@actions-semi.com>
+//
+// Copyright (c) 2018 Linaro Ltd.
+// Author: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
+
+#include <linux/clk-provider.h>
+#include <linux/regmap.h>
+#include <linux/slab.h>
+
+#include "owl-factor.h"
+
+static unsigned int _get_table_maxval(const struct clk_factor_table *table)
+{
+	unsigned int maxval = 0;
+	const struct clk_factor_table *clkt;
+
+	for (clkt = table; clkt->div; clkt++)
+		if (clkt->val > maxval)
+			maxval = clkt->val;
+	return maxval;
+}
+
+static int _get_table_div_mul(const struct clk_factor_table *table,
+			unsigned int val, unsigned int *mul, unsigned int *div)
+{
+	const struct clk_factor_table *clkt;
+
+	for (clkt = table; clkt->div; clkt++) {
+		if (clkt->val == val) {
+			*mul = clkt->mul;
+			*div = clkt->div;
+			return 1;
+		}
+	}
+
+	return 0;
+}
+
+static unsigned int _get_table_val(const struct clk_factor_table *table,
+			unsigned long rate, unsigned long parent_rate)
+{
+	const struct clk_factor_table *clkt;
+	int val = -1;
+	u64 calc_rate;
+
+	for (clkt = table; clkt->div; clkt++) {
+		calc_rate = parent_rate * clkt->mul;
+		do_div(calc_rate, clkt->div);
+
+		if ((unsigned long)calc_rate <= rate) {
+			val = clkt->val;
+			break;
+		}
+	}
+
+	if (val == -1)
+		val = _get_table_maxval(table);
+
+	return val;
+}
+
+static int clk_val_best(struct clk_hw *hw, unsigned long rate,
+			unsigned long *best_parent_rate)
+{
+	struct owl_factor *factor = hw_to_owl_factor(hw);
+	struct owl_factor_hw *factor_hw = &factor->factor_hw;
+	const struct clk_factor_table *clkt = factor_hw->table;
+	unsigned long parent_rate, try_parent_rate, best = 0, cur_rate;
+	unsigned long parent_rate_saved = *best_parent_rate;
+	int bestval = 0;
+
+	if (!rate)
+		rate = 1;
+
+	if (!(clk_hw_get_flags(hw) & CLK_SET_RATE_PARENT)) {
+		parent_rate = *best_parent_rate;
+		bestval = _get_table_val(clkt, rate, parent_rate);
+		return bestval;
+	}
+
+	for (clkt = factor_hw->table; clkt->div; clkt++) {
+		try_parent_rate = rate * clkt->div / clkt->mul;
+
+		if (try_parent_rate == parent_rate_saved) {
+			pr_debug("%s: [%d %d %d] found try_parent_rate %ld\n",
+				__func__, clkt->val, clkt->mul, clkt->div,
+				try_parent_rate);
+			/*
+			 * It's the most ideal case if the requested rate can be
+			 * divided from parent clock without any need to change
+			 * parent rate, so return the divider immediately.
+			 */
+			*best_parent_rate = parent_rate_saved;
+			return clkt->val;
+		}
+
+		parent_rate = clk_hw_round_rate(clk_hw_get_parent(hw),
+				try_parent_rate);
+		cur_rate = DIV_ROUND_UP(parent_rate, clkt->div) * clkt->mul;
+		if (cur_rate <= rate && cur_rate > best) {
+			bestval = clkt->val;
+			best = cur_rate;
+			*best_parent_rate = parent_rate;
+		}
+	}
+
+	if (!bestval) {
+		bestval = _get_table_maxval(clkt);
+		*best_parent_rate = clk_hw_round_rate(
+				clk_hw_get_parent(hw), 1);
+	}
+
+	return bestval;
+}
+
+long owl_factor_helper_round_rate(struct owl_clk_common *common,
+				const struct owl_factor_hw *factor_hw,
+				unsigned long rate,
+				unsigned long *parent_rate)
+{
+	const struct clk_factor_table *clkt = factor_hw->table;
+	unsigned int val, mul = 0, div = 1;
+
+	val = clk_val_best(&common->hw, rate, parent_rate);
+	_get_table_div_mul(clkt, val, &mul, &div);
+
+	return *parent_rate * mul / div;
+}
+
+static long owl_factor_round_rate(struct clk_hw *hw, unsigned long rate,
+			unsigned long *parent_rate)
+{
+	struct owl_factor *factor = hw_to_owl_factor(hw);
+	struct owl_factor_hw *factor_hw = &factor->factor_hw;
+
+	return owl_factor_helper_round_rate(&factor->common, factor_hw,
+					rate, parent_rate);
+}
+
+unsigned long owl_factor_helper_recalc_rate(struct owl_clk_common *common,
+					 const struct owl_factor_hw *factor_hw,
+					 unsigned long parent_rate)
+{
+	const struct clk_factor_table *clkt = factor_hw->table;
+	unsigned long long int rate;
+	u32 reg, val, mul, div;
+
+	div = 0;
+	mul = 0;
+
+	regmap_read(common->regmap, factor_hw->reg, &reg);
+
+	val = reg >> factor_hw->shift;
+	val &= div_mask(factor_hw);
+
+	_get_table_div_mul(clkt, val, &mul, &div);
+	if (!div) {
+		WARN(!(factor_hw->fct_flags & CLK_DIVIDER_ALLOW_ZERO),
+			"%s: Zero divisor and CLK_DIVIDER_ALLOW_ZERO not set\n",
+			__clk_get_name(common->hw.clk));
+		return parent_rate;
+	}
+
+	rate = (unsigned long long int)parent_rate * mul;
+	do_div(rate, div);
+
+	return rate;
+}
+
+static unsigned long owl_factor_recalc_rate(struct clk_hw *hw,
+			unsigned long parent_rate)
+{
+	struct owl_factor *factor = hw_to_owl_factor(hw);
+	struct owl_factor_hw *factor_hw = &factor->factor_hw;
+	struct owl_clk_common *common = &factor->common;
+
+	return owl_factor_helper_recalc_rate(common, factor_hw, parent_rate);
+}
+
+int owl_factor_helper_set_rate(const struct owl_clk_common *common,
+				const struct owl_factor_hw *factor_hw,
+				unsigned long rate,
+				unsigned long parent_rate)
+{
+	u32 val, reg;
+
+	val = _get_table_val(factor_hw->table, rate, parent_rate);
+
+	if (val > div_mask(factor_hw))
+		val = div_mask(factor_hw);
+
+	regmap_read(common->regmap, factor_hw->reg, &reg);
+
+	reg &= ~(div_mask(factor_hw) << factor_hw->shift);
+	reg |= val << factor_hw->shift;
+
+	regmap_write(common->regmap, factor_hw->reg, reg);
+
+	return 0;
+}
+
+static int owl_factor_set_rate(struct clk_hw *hw, unsigned long rate,
+			       unsign