Merge branches 'clk-imx7ulp', 'clk-imx6-fixes', 'clk-imx-fixes', 'clk-imx8qxp'...

Merge branches 'clk-imx7ulp', 'clk-imx6-fixes', 'clk-imx-fixes', 'clk-imx8qxp' and 'clk-imx8mq' into clk-next

 - NXP i.MX7ULP SoC clock support
 - Support for i.MX8QXP SoC clocks
 - Support for NXP i.MX8MQ clock controllers

* clk-imx7ulp:
  clk: imx: add imx7ulp clk driver
  clk: imx: implement new clk_hw based APIs
  clk: imx: make mux parent strings const
  dt-bindings: clock: add imx7ulp clock binding doc
  clk: imx: add imx7ulp composite clk support
  clk: imx: add pfdv2 support
  clk: imx: add pllv4 support
  clk: fractional-divider: add CLK_FRAC_DIVIDER_ZERO_BASED flag support
  clk: imx: add gatable clock divider support

* clk-imx6-fixes:
  clk: imx6q: handle ENET PLL bypass
  clk: imx6q: optionally get CCM inputs via standard clock handles
  clk: imx6q: reset exclusive gates on init

* clk-imx-fixes:
  clk: imx6q: add DCICx clocks gate
  clk: imx6sl: ensure MMDC CH0 handshake is bypassed
  clk: imx7d: remove UART1 clock setting

* clk-imx8qxp:
  clk: imx: add imx8qxp lpcg driver
  clk: imx: add lpcg clock support
  clk: imx: add imx8qxp clk driver
  clk: imx: add scu clock common part
  clk: imx: add configuration option for mmio clks
  dt-bindings: clock: add imx8qxp lpcg clock binding
  dt-bindings: clock: imx8qxp: add SCU clock IDs
  firmware: imx: add pm svc headfile
  dt-bindings: fsl: scu: update power domain binding
  firmware: imx: remove resource id enums
  dt-bindings: imx: add scu resource id headfile

* clk-imx8mq:
  clk: imx: Make the i.MX8MQ CCM clock driver CLK_IMX8MQ dependant
  clk: imx: remove redundant initialization of ret to zero
  clk: imx: Add SCCG PLL type
  clk: imx: Add fractional PLL output clock
  clk: imx: Add clock driver for i.MX8MQ CCM
  clk: imx: Add imx composite clock
  dt-bindings: Add binding for i.MX8MQ CCM

Documentation/devicetree/bindings/arm/freescale/fsl,scu.txt

@@ -58,19 +58,11 @@ This binding for the SCU power domain providers uses the generic power
 domain binding[2].
 
 Required properties:
-- compatible:		Should be "fsl,scu-pd".
-- #address-cells:	Should be 1.
-- #size-cells:		Should be 0.
-
-Required properties for power domain sub nodes:
-- #power-domain-cells:	Must be 0.
-
-Optional Properties:
-- reg:			Resource ID of this power domain.
-			No exist means uncontrollable by user.
+- compatible:		Should be "fsl,imx8qxp-scu-pd".
+- #power-domain-cells:	Must be 1. Contains the Resource ID used by
+			SCU commands.
 			See detailed Resource ID list from:
-			include/dt-bindings/power/imx-rsrc.h
-- power-domains:	phandle pointing to the parent power domain.
+			include/dt-bindings/firmware/imx/rsrc.h
 
 Clock bindings based on SCU Message Protocol
 ------------------------------------------------------------
@@ -152,22 +144,9 @@ firmware {
 			...
 		};
 
-		imx8qx-pm {
-			compatible = "fsl,scu-pd";
-			#address-cells = <1>;
-			#size-cells = <0>;
-
-			pd_dma: dma-power-domain {
-				#power-domain-cells = <0>;
-
-				pd_dma_lpuart0: dma-lpuart0@57 {
-					reg = <SC_R_UART_0>;
-					#power-domain-cells = <0>;
-					power-domains = <&pd_dma>;
-				};
-				...
-			};
-			...
+		pd: imx8qx-pd {
+			compatible = "fsl,imx8qxp-scu-pd";
+			#power-domain-cells = <1>;
 		};
 	};
 };
@@ -179,5 +158,5 @@ serial@5a060000 {
 	clocks = <&clk IMX8QXP_UART0_CLK>,
 		 <&clk IMX8QXP_UART0_IPG_CLK>;
 	clock-names = "per", "ipg";
-	power-domains = <&pd_dma_lpuart0>;
+	power-domains = <&pd IMX_SC_R_UART_0>;
 };

Documentation/devicetree/bindings/clock/imx6q-clock.txt

@@ -13,6 +13,9 @@ Optional properties:
   management IC (PMIC) triggered via PMIC_STBY_REQ signal.
   Boards that are designed to initiate poweroff on PMIC_ON_REQ signal should
   be using "syscon-poweroff" driver instead.
+- clocks: list of clock specifiers, must contain an entry for each entry
+          in clock-names
+- clock-names: valid names are "osc", "ckil", "ckih1", "anaclk1" and "anaclk2"
 
 The clock consumer should specify the desired clock by having the clock
 ID in its "clocks" phandle cell.  See include/dt-bindings/clock/imx6qdl-clock.h

Documentation/devicetree/bindings/clock/imx7ulp-clock.txt

+* Clock bindings for Freescale i.MX7ULP
+
+i.MX7ULP Clock functions are under joint control of the System
+Clock Generation (SCG) modules, Peripheral Clock Control (PCC)
+modules, and Core Mode Controller (CMC)1 blocks
+
+The clocking scheme provides clear separation between M4 domain
+and A7 domain. Except for a few clock sources shared between two
+domains, such as the System Oscillator clock, the Slow IRC (SIRC),
+and and the Fast IRC clock (FIRCLK), clock sources and clock
+management are separated and contained within each domain.
+
+M4 clock management consists of SCG0, PCC0, PCC1, and CMC0 modules.
+A7 clock management consists of SCG1, PCC2, PCC3, and CMC1 modules.
+
+Note: this binding doc is only for A7 clock domain.
+
+System Clock Generation (SCG) modules:
+---------------------------------------------------------------------
+The System Clock Generation (SCG) is responsible for clock generation
+and distribution across this device. Functions performed by the SCG
+include: clock reference selection, generation of clock used to derive
+processor, system, peripheral bus and external memory interface clocks,
+source selection for peripheral clocks and control of power saving
+clock gating mode.
+
+Required properties:
+
+- compatible:	Should be "fsl,imx7ulp-scg1".
+- reg : 	Should contain registers location and length.
+- #clock-cells:	Should be <1>.
+- clocks:	Should contain the fixed input clocks.
+- clock-names:  Should contain the following clock names:
+		"rosc", "sosc", "sirc", "firc", "upll", "mpll".
+
+Peripheral Clock Control (PCC) modules:
+---------------------------------------------------------------------
+The Peripheral Clock Control (PCC) is responsible for clock selection,
+optional division and clock gating mode for peripherals in their
+respected power domain
+
+Required properties:
+- compatible:	Should be one of:
+		  "fsl,imx7ulp-pcc2",
+		  "fsl,imx7ulp-pcc3".
+- reg : 	Should contain registers location and length.
+- #clock-cells:	Should be <1>.
+- clocks:	Should contain the fixed input clocks.
+- clock-names:  Should contain the following clock names:
+		"nic1_bus_clk", "nic1_clk", "ddr_clk", "apll_pfd2",
+		"apll_pfd1", "apll_pfd0", "upll", "sosc_bus_clk",
+		"mpll", "firc_bus_clk", "rosc", "spll_bus_clk";
+
+The clock consumer should specify the desired clock by having the clock
+ID in its "clocks" phandle cell.
+See include/dt-bindings/clock/imx7ulp-clock.h
+for the full list of i.MX7ULP clock IDs of each module.
+
+Examples:
+
+#include <dt-bindings/clock/imx7ulp-clock.h>
+
+scg1: scg1@403e0000 {
+	compatible = "fsl,imx7ulp-scg1;
+	reg = <0x403e0000 0x10000>;
+	clocks = <&rosc>, <&sosc>, <&sirc>,
+		 <&firc>, <&upll>, <&mpll>;
+	clock-names = "rosc", "sosc", "sirc",
+		      "firc", "upll", "mpll";
+	#clock-cells = <1>;
+};
+
+pcc2: pcc2@403f0000 {
+	compatible = "fsl,imx7ulp-pcc2";
+	reg = <0x403f0000 0x10000>;
+	#clock-cells = <1>;
+	clocks = <&scg1 IMX7ULP_CLK_NIC1_BUS_DIV>,
+		 <&scg1 IMX7ULP_CLK_NIC1_DIV>,
+		 <&scg1 IMX7ULP_CLK_DDR_DIV>,
+		 <&scg1 IMX7ULP_CLK_APLL_PFD2>,
+		 <&scg1 IMX7ULP_CLK_APLL_PFD1>,
+		 <&scg1 IMX7ULP_CLK_APLL_PFD0>,
+		 <&scg1 IMX7ULP_CLK_UPLL>,
+		 <&scg1 IMX7ULP_CLK_SOSC_BUS_CLK>,
+		 <&scg1 IMX7ULP_CLK_MIPI_PLL>,
+		 <&scg1 IMX7ULP_CLK_FIRC_BUS_CLK>,
+		 <&scg1 IMX7ULP_CLK_ROSC>,
+		 <&scg1 IMX7ULP_CLK_SPLL_BUS_CLK>;
+	clock-names = "nic1_bus_clk", "nic1_clk", "ddr_clk",
+		      "apll_pfd2", "apll_pfd1", "apll_pfd0",
+		      "upll", "sosc_bus_clk", "mpll",
+		      "firc_bus_clk", "rosc", "spll_bus_clk";
+};
+
+usdhc1: usdhc@40380000 {
+	compatible = "fsl,imx7ulp-usdhc";
+	reg = <0x40380000 0x10000>;
+	interrupts = <GIC_SPI 43 IRQ_TYPE_LEVEL_HIGH>;
+	clocks = <&scg1 IMX7ULP_CLK_NIC1_BUS_DIV>,
+		 <&scg1 IMX7ULP_CLK_NIC1_DIV>,
+		 <&pcc2 IMX7ULP_CLK_USDHC1>;
+	clock-names ="ipg", "ahb", "per";
+	bus-width = <4>;
+};

Documentation/devicetree/bindings/clock/imx8mq-clock.txt

+* Clock bindings for NXP i.MX8M Quad
+
+Required properties:
+- compatible: Should be "fsl,imx8mq-ccm"
+- reg: Address and length of the register set
+- #clock-cells: Should be <1>
+- clocks: list of clock specifiers, must contain an entry for each required
+          entry in clock-names
+- clock-names: should include the following entries:
+    - "ckil"
+    - "osc_25m"
+    - "osc_27m"
+    - "clk_ext1"
+    - "clk_ext2"
+    - "clk_ext3"
+    - "clk_ext4"
+
+The clock consumer should specify the desired clock by having the clock
+ID in its "clocks" phandle cell.  See include/dt-bindings/clock/imx8mq-clock.h
+for the full list of i.MX8M Quad clock IDs.

Documentation/devicetree/bindings/clock/imx8qxp-lpcg.txt

+* NXP i.MX8QXP LPCG (Low-Power Clock Gating) Clock bindings
+
+The Low-Power Clock Gate (LPCG) modules contain a local programming
+model to control the clock gates for the peripherals. An LPCG module
+is used to locally gate the clocks for the associated peripheral.
+
+Note:
+This level of clock gating is provided after the clocks are generated
+by the SCU resources and clock controls. Thus even if the clock is
+enabled by these control bits, it might still not be running based
+on the base resource.
+
+Required properties:
+- compatible:	Should be one of:
+		  "fsl,imx8qxp-lpcg-adma",
+		  "fsl,imx8qxp-lpcg-conn",
+		  "fsl,imx8qxp-lpcg-dc",
+		  "fsl,imx8qxp-lpcg-dsp",
+		  "fsl,imx8qxp-lpcg-gpu",
+		  "fsl,imx8qxp-lpcg-hsio",
+		  "fsl,imx8qxp-lpcg-img",
+		  "fsl,imx8qxp-lpcg-lsio",
+		  "fsl,imx8qxp-lpcg-vpu"
+- reg:		Address and length of the register set
+- #clock-cells:	Should be <1>
+
+The clock consumer should specify the desired clock by having the clock
+ID in its "clocks" phandle cell.
+See the full list of clock IDs from:
+include/dt-bindings/clock/imx8qxp-clock.h
+
+Examples:
+
+#include <dt-bindings/clock/imx8qxp-clock.h>
+
+conn_lpcg: clock-controller@5b200000 {
+	compatible = "fsl,imx8qxp-lpcg-conn";
+	reg = <0x5b200000 0xb0000>;
+	#clock-cells = <1>;
+};
+
+usdhc1: mmc@5b010000 {
+	compatible = "fsl,imx8qxp-usdhc", "fsl,imx7d-usdhc";
+	interrupt-parent = <&gic>;
+	interrupts = <GIC_SPI 232 IRQ_TYPE_LEVEL_HIGH>;
+	reg = <0x5b010000 0x10000>;
+	clocks = <&conn_lpcg IMX8QXP_CONN_LPCG_SDHC0_IPG_CLK>,
+		 <&conn_lpcg IMX8QXP_CONN_LPCG_SDHC0_PER_CLK>,
+		 <&conn_lpcg IMX8QXP_CONN_LPCG_SDHC0_HCLK>;
+	clock-names = "ipg", "per", "ahb";
+};

drivers/clk/Kconfig

@@ -293,7 +293,9 @@ config COMMON_CLK_BD718XX
 source "drivers/clk/actions/Kconfig"
 source "drivers/clk/bcm/Kconfig"
 source "drivers/clk/hisilicon/Kconfig"
+source "drivers/clk/imx/Kconfig"
 source "drivers/clk/imgtec/Kconfig"
+source "drivers/clk/imx/Kconfig"
 source "drivers/clk/ingenic/Kconfig"
 source "drivers/clk/keystone/Kconfig"
 source "drivers/clk/mediatek/Kconfig"

drivers/clk/Makefile

@@ -72,7 +72,7 @@ obj-$(CONFIG_ARCH_DAVINCI)		+= davinci/
 obj-$(CONFIG_H8300)			+= h8300/
 obj-$(CONFIG_ARCH_HISI)			+= hisilicon/
 obj-y					+= imgtec/
-obj-$(CONFIG_ARCH_MXC)			+= imx/
+obj-y					+= imx/
 obj-y					+= ingenic/
 obj-$(CONFIG_ARCH_K3)			+= keystone/
 obj-$(CONFIG_ARCH_KEYSTONE)		+= keystone/

drivers/clk/clk-fractional-divider.c

@@ -37,6 +37,11 @@ static unsigned long clk_fd_recalc_rate(struct clk_hw *hw,
 	m = (val & fd->mmask) >> fd->mshift;
 	n = (val & fd->nmask) >> fd->nshift;
 
+	if (fd->flags & CLK_FRAC_DIVIDER_ZERO_BASED) {
+		m++;
+		n++;
+	}
+
 	if (!n || !m)
 		return parent_rate;
 
@@ -100,6 +105,11 @@ static int clk_fd_set_rate(struct clk_hw *hw, unsigned long rate,
 			GENMASK(fd->mwidth - 1, 0), GENMASK(fd->nwidth - 1, 0),
 			&m, &n);
 
+	if (fd->flags & CLK_FRAC_DIVIDER_ZERO_BASED) {
+		m--;
+		n--;
+	}
+
 	if (fd->lock)
 		spin_lock_irqsave(fd->lock, flags);
 	else

drivers/clk/imx/Kconfig

+# SPDX-License-Identifier: GPL-2.0
+# common clock support for NXP i.MX SoC family.
+config MXC_CLK
+	bool
+	def_bool ARCH_MXC
+
+config MXC_CLK_SCU
+	bool
+	depends on IMX_SCU
+
+config CLK_IMX8MQ
+	bool "IMX8MQ CCM Clock Driver"
+	depends on ARCH_MXC && ARM64
+	help
+	    Build the driver for i.MX8MQ CCM Clock Driver
+
+config CLK_IMX8QXP
+	bool "IMX8QXP SCU Clock"
+	depends on ARCH_MXC && IMX_SCU && ARM64
+	select MXC_CLK_SCU
+	help
+	  Build the driver for IMX8QXP SCU based clocks.

drivers/clk/imx/Makefile

 # SPDX-License-Identifier: GPL-2.0
 
-obj-y += \
+obj-$(CONFIG_MXC_CLK) += \
 	clk.o \
 	clk-busy.o \
+	clk-composite-8m.o \
 	clk-cpu.o \
+	clk-composite-7ulp.o \
+	clk-divider-gate.o \
 	clk-fixup-div.o \
 	clk-fixup-mux.o \
+	clk-frac-pll.o \
 	clk-gate-exclusive.o \
 	clk-gate2.o \
+	clk-pfd.o \
+	clk-pfdv2.o \
 	clk-pllv1.o \
 	clk-pllv2.o \
 	clk-pllv3.o \
-	clk-pfd.o
+	clk-pllv4.o \
+	clk-sccg-pll.o
+
+obj-$(CONFIG_MXC_CLK_SCU) += \
+	clk-scu.o \
+	clk-lpcg-scu.o
+
+obj-$(CONFIG_CLK_IMX8MQ) += clk-imx8mq.o
+obj-$(CONFIG_CLK_IMX8QXP) += clk-imx8qxp.o clk-imx8qxp-lpcg.o
 
 obj-$(CONFIG_SOC_IMX1)   += clk-imx1.o
 obj-$(CONFIG_SOC_IMX21)  += clk-imx21.o
@@ -26,4 +40,5 @@ obj-$(CONFIG_SOC_IMX6SLL) += clk-imx6sll.o
 obj-$(CONFIG_SOC_IMX6SX) += clk-imx6sx.o
 obj-$(CONFIG_SOC_IMX6UL) += clk-imx6ul.o
 obj-$(CONFIG_SOC_IMX7D)  += clk-imx7d.o
+obj-$(CONFIG_SOC_IMX7ULP) += clk-imx7ulp.o
 obj-$(CONFIG_SOC_VF610)  += clk-vf610.o

drivers/clk/imx/clk-busy.c

@@ -154,7 +154,7 @@ static const struct clk_ops clk_busy_mux_ops = {
 
 struct clk *imx_clk_busy_mux(const char *name, void __iomem *reg, u8 shift,
 			     u8 width, void __iomem *busy_reg, u8 busy_shift,
-			     const char **parent_names, int num_parents)
+			     const char * const *parent_names, int num_parents)
 {
 	struct clk_busy_mux *busy;
 	struct clk *clk;

drivers/clk/imx/clk-composite-7ulp.c

+// SPDX-License-Identifier: GPL-2.0+
+/*
+ * Copyright (C) 2016 Freescale Semiconductor, Inc.
+ * Copyright 2017~2018 NXP
+ *
+ */
+
+#include <linux/clk-provider.h>
+#include <linux/err.h>
+#include <linux/slab.h>
+
+#include "clk.h"
+
+#define PCG_PCS_SHIFT	24
+#define PCG_PCS_MASK	0x7
+#define PCG_CGC_SHIFT	30
+#define PCG_FRAC_SHIFT	3
+#define PCG_FRAC_WIDTH	1
+#define PCG_FRAC_MASK	BIT(3)
+#define PCG_PCD_SHIFT	0
+#define PCG_PCD_WIDTH	3
+#define PCG_PCD_MASK	0x7
+
+struct clk_hw *imx7ulp_clk_composite(const char *name,
+				     const char * const *parent_names,
+				     int num_parents, bool mux_present,
+				     bool rate_present, bool gate_present,
+				     void __iomem *reg)
+{
+	struct clk_hw *mux_hw = NULL, *fd_hw = NULL, *gate_hw = NULL;
+	struct clk_fractional_divider *fd = NULL;
+	struct clk_gate *gate = NULL;
+	struct clk_mux *mux = NULL;
+	struct clk_hw *hw;
+
+	if (mux_present) {
+		mux = kzalloc(sizeof(*mux), GFP_KERNEL);
+		if (!mux)
+			return ERR_PTR(-ENOMEM);
+		mux_hw = &mux->hw;
+		mux->reg = reg;
+		mux->shift = PCG_PCS_SHIFT;
+		mux->mask = PCG_PCS_MASK;
+	}
+
+	if (rate_present) {
+		fd = kzalloc(sizeof(*fd), GFP_KERNEL);
+		if (!fd) {
+			kfree(mux);
+			return ERR_PTR(-ENOMEM);
+		}
+		fd_hw = &fd->hw;
+		fd->reg = reg;
+		fd->mshift = PCG_FRAC_SHIFT;
+		fd->mwidth = PCG_FRAC_WIDTH;
+		fd->mmask  = PCG_FRAC_MASK;
+		fd->nshift = PCG_PCD_SHIFT;
+		fd->nwidth = PCG_PCD_WIDTH;
+		fd->nmask = PCG_PCD_MASK;
+		fd->flags = CLK_FRAC_DIVIDER_ZERO_BASED;
+	}
+
+	if (gate_present) {
+		gate = kzalloc(sizeof(*gate), GFP_KERNEL);
+		if (!gate) {
+			kfree(mux);
+			kfree(fd);
+			return ERR_PTR(-ENOMEM);
+		}
+		gate_hw = &gate->hw;
+		gate->reg = reg;
+		gate->bit_idx = PCG_CGC_SHIFT;
+	}
+
+	hw = clk_hw_register_composite(NULL, name, parent_names, num_parents,
+				       mux_hw, &clk_mux_ops, fd_hw,
+				       &clk_fractional_divider_ops, gate_hw,
+				       &clk_gate_ops, CLK_SET_RATE_GATE |
+				       CLK_SET_PARENT_GATE);
+	if (IS_ERR(hw)) {
+		kfree(mux);
+		kfree(fd);
+		kfree(gate);
+	}
+
+	return hw;
+}

drivers/clk/imx/clk-composite-8m.c

+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Copyright 2018 NXP
+ */
+
+#include <linux/errno.h>
+#include <linux/slab.h>
+#include <linux/clk-provider.h>
+
+#include "clk.h"
+
+#define PCG_PREDIV_SHIFT	16
+#define PCG_PREDIV_WIDTH	3
+#define PCG_PREDIV_MAX		8
+
+#define PCG_DIV_SHIFT		0
+#define PCG_DIV_WIDTH		6
+#define PCG_DIV_MAX		64
+
+#define PCG_PCS_SHIFT		24
+#define PCG_PCS_MASK		0x7
+
+#define PCG_CGC_SHIFT		28
+
+static unsigned long imx8m_clk_composite_divider_recalc_rate(struct clk_hw *hw,
+						unsigned long parent_rate)
+{
+	struct clk_divider *divider = to_clk_divider(hw);
+	unsigned long prediv_rate;
+	unsigned int prediv_value;
+	unsigned int div_value;
+
+	prediv_value = readl(divider->reg) >> divider->shift;
+	prediv_value &= clk_div_mask(divider->width);
+
+	prediv_rate = divider_recalc_rate(hw, parent_rate, prediv_value,
+						NULL, divider->flags,
+						divider->width);
+
+	div_value = readl(divider->reg) >> PCG_DIV_SHIFT;
+	div_value &= clk_div_mask(PCG_DIV_WIDTH);
+
+	return divider_recalc_rate(hw, prediv_rate, div_value, NULL,
+				   divider->flags, PCG_DIV_WIDTH);
+}
+
+static int imx8m_clk_composite_compute_dividers(unsigned long rate,
+						unsigned long parent_rate,
+						int *prediv, int *postdiv)
+{
+	int div1, div2;
+	int error = INT_MAX;
+	int ret = -EINVAL;
+
+	*prediv = 1;
+	*postdiv = 1;
+
+	for (div1 = 1; div1 <= PCG_PREDIV_MAX; div1++) {
+		for (div2 = 1; div2 <= PCG_DIV_MAX; div2++) {
+			int new_error = ((parent_rate / div1) / div2) - rate;
+
+			if (abs(new_error) < abs(error)) {
+				*prediv = div1;
+				*postdiv = div2;
+				error = new_error;
+				ret = 0;
+			}
+		}
+	}
+	return ret;
+}
+
+static long imx8m_clk_composite_divider_round_rate(struct clk_hw *hw,
+						unsigned long rate,
+						unsigned long *prate)
+{
+	int prediv_value;
+	int div_value;
+
+	imx8m_clk_composite_compute_dividers(rate, *prate,
+						&prediv_value, &div_value);
+	rate = DIV_ROUND_UP(*prate, prediv_value);
+
+	return DIV_ROUND_UP(rate, div_value);
+
+}
+
+static int imx8m_clk_composite_divider_set_rate(struct clk_hw *hw,
+					unsigned long rate,
+					unsigned long parent_rate)
+{
+	struct clk_divider *divider = to_clk_divider(hw);
+	unsigned long flags = 0;
+	int prediv_value;
+	int div_value;
+	int ret;
+	u32 val;
+
+	ret = imx8m_clk_composite_compute_dividers(rate, parent_rate,
+						&prediv_value, &div_value);
+	if (ret)
+		return -EINVAL;
+
+	spin_lock_irqsave(divider->lock, flags);
+
+	val = readl(divider->reg);
+	val &= ~((clk_div_mask(divider->width) << divider->shift) |
+			(clk_div_mask(PCG_DIV_WIDTH) << PCG_DIV_SHIFT));
+
+	val |= (u32)(prediv_value  - 1) << divider->shift;
+	val |= (u32)(div_value - 1) << PCG_DIV_SHIFT;
+	writel(val, divider->reg);
+
+	spin_unlock_irqrestore(divider->lock, flags);
+
+	return ret;
+}
+
+static const struct clk_ops imx8m_clk_composite_divider_ops = {
+	.recalc_rate = imx8m_clk_composite_divider_recalc_rate,
+	.round_rate = imx8m_clk_composite_divider_round_rate,
+	.set_rate = imx8m_clk_composite_divider_set_rate,
+};
+
+struct clk *imx8m_clk_composite_flags(const char *name,
+					const char **parent_names,
+					int num_parents, void __iomem *reg,
+					unsigned long flags)
+{
+	struct clk_hw *hw = ERR_PTR(-ENOMEM), *mux_hw;
+	struct clk_hw *div_hw, *gate_hw;
+	struct clk_divider *div = NULL;
+	struct clk_gate *gate = NULL;
+	struct clk_mux *mux = NULL;
+
+	mux = kzalloc(sizeof(*mux), GFP_KERNEL);
+	if (!mux)
+		goto fail;
+
+	mux_hw = &mux->hw;
+	mux->reg = reg;
+	mux->shift = PCG_PCS_SHIFT;
+	mux->mask = PCG_PCS_MASK;
+
+	div = kzalloc(sizeof(*div), GFP_KERNEL);
+	if (!div)
+		goto fail;
+
+	div_hw = &div->hw;
+	div->reg = reg;
+	div->shift = PCG_PREDIV_SHIFT;
+	div->width = PCG_PREDIV_WIDTH;
+	div->lock = &imx_ccm_lock;
+	div->flags = CLK_DIVIDER_ROUND_CLOSEST;
+
+	gate = kzalloc(sizeof(*gate), GFP_KERNEL);
+	if (!gate)
+		goto fail;
+
+	gate_hw = &gate->hw;
+	gate->reg = reg;
+	gate->bit_idx = PCG_CGC_SHIFT;
+
+	hw = clk_hw_register_composite(NULL, name, parent_names, num_parents,
+			mux_hw, &clk_mux_ops, div_hw,
+			&imx8m_clk_composite_divider_ops,
+			gate_hw, &clk_gate_ops, flags);
+	if (IS_ERR(hw))
+		goto fail;
+
+	return hw->clk;
+
+fail:
+	kfree(gate);
+	kfree(div);
+	kfree(mux);
+	return ERR_CAST(hw);
+}

drivers/clk/imx/clk-divider-gate.c

+// SPDX-License-Identifier: GPL-2.0+
+/*
+ * Copyright 2018 NXP.
+ *   Dong Aisheng <aisheng.dong@nxp.com>
+ */
+
+#include <linux/clk-provider.h>
+#include <linux/err.h>
+#include <linux/io.h>
+#include <linux/slab.h>
+
+#include "clk.h"
+
+struct clk_divider_gate {
+	struct clk_divider divider;
+	u32 cached_val;
+};
+
+static inline struct clk_divider_gate *to_clk_divider_gate(struct clk_hw *hw)
+{
+	struct clk_divider *div = to_clk_divider(hw);
+
+	return container_of(div, struct clk_divider_gate, divider);
+}
+
+static unsigned long clk_divider_gate_recalc_rate_ro(struct clk_hw *hw,
+						     unsigned long parent_rate)
+{
+	struct clk_divider *div = to_clk_divider(hw);
+	unsigned int val;
+
+	val = clk_readl(div->reg) >> div->shift;
+	val &= clk_div_mask(div->width);
+	if (!val)
+		return 0;
+
+	return divider_recalc_rate(hw, parent_rate, val, div->table,
+				   div->flags, div->width);
+}
+
+static unsigned long clk_divider_gate_recalc_rate(struct clk_hw *hw,
+						  unsigned long parent_rate)
+{
+	struct clk_divider_gate *div_gate = to_clk_divider_gate(hw);
+	struct clk_divider *div = to_clk_divider(hw);
+	unsigned long flags = 0;
+	unsigned int val;
+
+	spin_lock_irqsave(div->lock, flags);
+
+	if (!clk_hw_is_enabled(hw)) {
+		val = div_gate->cached_val;
+	} else {
+		val = clk_readl(div->reg) >> div->shift;
+		val &= clk_div_mask(div->width);
+	}
+
+	spin_unlock_irqrestore(div->lock, flags);
+
+	if (!val)
+		return 0;
+
+	return divider_recalc_rate(hw, parent_rate, val, div->table,
+				   div->flags, div->width);
+}
+
+static long clk_divider_round_rate(struct clk_hw *hw, unsigned long rate,
+				   unsigned long *prate)
+{
+	return clk_divider_ops.round_rate(hw, rate, prate);
+}
+
+static int clk_divider_gate_set_rate(struct clk_hw *hw, unsigned long rate,
+				unsigned long parent_rate)
+{
+	struct clk_divider_gate *div_gate = to_clk_divider_gate(hw);
+	struct clk_divider *div = to_clk_divider(hw);
+	unsigned long flags = 0;
+	int value;
+	u32 val;
+
+	value = divider_get_val(rate, parent_rate, div->table,
+				div->width, div->flags);
+	if (value < 0)
+		return value;
+
+	spin_lock_irqsave(div->lock, flags);
+
+	if (clk_hw_is_enabled(hw)) {
+		val = clk_readl(div->reg);
+		val &= ~(clk_div_mask(div->width) << div->shift);
+		val |= (u32)value << div->shift;
+		clk_writel(val, div->reg);
+	} else {
+		div_gate->cached_val = value;
+	}
+
+	spin_unlock_irqrestore(div->lock, flags);
+
+	return 0;
+}
+
+static int clk_divider_enable(struct clk_hw *hw)
+{
+	struct clk_divider_gate *div_gate = to_clk_divider_gate(hw);
+	struct clk_divider *div = to_clk_divider(hw);
+	unsigned long flags = 0;
+	u32 val;
+
+	if (!div_gate->cached_val) {
+		pr_err("%s: no valid preset rate\n", clk_hw_get_name(hw));
+		return -EINVAL;
+	}
+
+	spin_lock_irqsave(div->lock, flags);
+	/* restore div val */
+	val = clk_readl(div->reg);
+	val |= div_gate->cached_val << div->shift;
+	clk_writel(val, div->reg);
+
+	spin_unlock_irqrestore(div->lock, flags);
+
+	return 0;
+}
+
+static void clk_divider_disable(struct clk_hw *hw)
+{
+	struct clk_divider_gate *div_gate = to_clk_divider_gate(hw);
+	struct clk_divider *div = to_clk_divider(hw);
+	unsigned long flags = 0;
+	u32 val;
+
+	spin_lock_irqsave(div->lock, flags);
+
+	/* store the current div val */
+	val = clk_readl(div->reg) >> div->shift;
+	val &= clk_div_mask(div->width);
+	div_gate->cached_val = val;
+	clk_writel(0, div->reg);
+
+	spin_unlock_irqrestore(div->lock, flags);
+}
+
+static int clk_divider_is_enabled(struct clk_hw *hw)
+{
+	struct clk_divider *div = to_clk_divider(hw);
+	u32 val;
+
+	val = clk_readl(div->reg) >> div->shift;
+	val &= clk_div_mask(div->width);
+
+	return val ? 1 : 0;
+}
+
+static const struct clk_ops clk_divider_gate_ro_ops = {
+	.recalc_rate = clk_divider_gate_recalc_rate_ro,
+	.round_rate = clk_divider_round_rate,
+};
+
+static const struct clk_ops clk_divider_gate_ops = {
+	.recalc_rate = clk_divider_gate_recalc_rate,
+	.round_rate = clk_divider_round_rate,
+	.set_rate = clk_divider_gate_set_rate,
+	.enable = clk_divider_enable,
+	.disable = clk_divider_disable,
+	.is_enabled = clk_divider_is_enabled,
+};
+
+/*
+ * NOTE: In order to resue the most code from the common divider,
+ * we also design our divider following the way that provids an extra
+ * clk_divider_flags, however it's fixed to CLK_DIVIDER_ONE_BASED by
+ * default as our HW is. Besides that it supports only CLK_DIVIDER_READ_ONLY
+ * flag which can be specified by user flexibly.
+ */
+struct clk_hw *imx_clk_divider_gate(const char *name, const char *parent_name,
+				    unsigned long flags, void __iomem *reg,
+				    u8 shift, u8 width, u8 clk_divider_flags,
+				    const struct clk_div_table *table,
+				    spinlock_t *lock)
+{
+	struct clk_init_data init;
+	struct clk_divider_gate *div_gate;
+	struct clk_hw *hw;
+	u32 val;
+	int ret;
+
+	div_gate  = kzalloc(sizeof(*div_gate), GFP_KERNEL);
+	if (!div_gate)
+		return ERR_PTR(-ENOMEM);
+
+	init.name = name;
+	if (clk_divider_flags & CLK_DIVIDER_READ_ONLY)
+		init.ops = &clk_divider_gate_ro_ops;
+	else
+		init.ops = &clk_divider_gate_ops;
+	init.flags = flags;
+	init.parent_names = parent_name ? &parent_name : NULL;
+	init.num_parents = parent_name ? 1 : 0;
+
+	div_gate->divider.reg = reg;
+	div_gate->divider.shift = shift;
+	div_gate->divider.width = width;
+	div_gate->divider.lock = lock;
+	div_gate->divider.table = table;
+	div_gate->divider.hw.init = &init;
+	div_gate->divider.flags = CLK_DIVIDER_ONE_BASED | clk_divider_flags;
+	/* cache gate status */
+	val = clk_readl(reg) >> shift;
+	val &= clk_div_mask(width);
+	div_gate->cached_val = val;
+
+	hw = &div_gate->divider.hw;
+	ret = clk_hw_register(NULL, hw);
+	if (ret) {
+		kfree(div_gate);
+		hw = ERR_PTR(ret);
+	}
+
+	return hw;
+}

drivers/clk/imx/clk-fixup-mux.c

@@ -70,7 +70,7 @@ static const struct clk_ops clk_fixup_mux_ops = {
 };
 
 struct clk *imx_clk_fixup_mux(const char *name, void __iomem *reg,
-			      u8 shift, u8 width, const char **parents,
+			      u8 shift, u8 width, const char * const *parents,
 			      int num_parents, void (*fixup)(u32 *val))
 {
 	struct clk_fixup_mux *fixup_mux;

drivers/clk/imx/clk-frac-pll.c

+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Copyright 2018 NXP.
+ *
+ * This driver supports the fractional plls found in the imx8m SOCs
+ *
+ * Documentation for this fractional pll can be found at:
+ *   https://www.nxp.com/docs/en/reference-manual/IMX8MDQLQRM.pdf#page=834
+ */
+
+#include <linux/clk-provider.h>
+#include <linux/err.h>
+#include <linux/iopoll.h>
+#include <linux/slab.h>
+#include <linux/bitfield.h>
+
+#include "clk.h"
+
+#define PLL_CFG0		0x0
+#define PLL_CFG1		0x4
+
+#define PLL_LOCK_STATUS		BIT(31)
+#define PLL_PD_MASK		BIT(19)
+#define PLL_BYPASS_MASK		BIT(14)
+#define PLL_NEWDIV_VAL		BIT(12)
+#define PLL_NEWDIV_ACK		BIT(11)
+#define PLL_FRAC_DIV_MASK	GENMASK(30, 7)
+#define PLL_INT_DIV_MASK	GENMASK(6, 0)
+#define PLL_OUTPUT_DIV_MASK	GENMASK(4, 0)
+#define PLL_FRAC_DENOM		0x1000000
+
+#define PLL_FRAC_LOCK_TIMEOUT	10000
+#define PLL_FRAC_ACK_TIMEOUT	500000
+
+struct clk_frac_pll {
+	struct clk_hw	hw;
+	void __iomem	*base;
+};
+
+#define to_clk_frac_pll(_hw) container_of(_hw, struct clk_frac_pll, hw)
+
+static int clk_wait_lock(struct clk_frac_pll *pll)
+{
+	u32 val;
+
+	return readl_poll_timeout(pll->base, val, val & PLL_LOCK_STATUS, 0,
+					PLL_FRAC_LOCK_TIMEOUT);
+}
+
+static int clk_wait_ack(struct clk_frac_pll *pll)
+{
+	u32 val;
+
+	/* return directly if the pll is in powerdown or in bypass */
+	if (readl_relaxed(pll->base) & (PLL_PD_MASK | PLL_BYPASS_MASK))
+		return 0;
+
+	/* Wait for the pll's divfi and divff to be reloaded */
+	return readl_poll_timeout(pll->base, val, val & PLL_NEWDIV_ACK, 0,
+					PLL_FRAC_ACK_TIMEOUT);
+}
+
+static int clk_pll_prepare(struct clk_hw *hw)
+{
+	struct clk_frac_pll *pll = to_clk_frac_pll(hw);
+	u32 val;
+
+	val = readl_relaxed(pll->base + PLL_CFG0);
+	val &= ~PLL_PD_MASK;
+	writel_relaxed(val, pll->base + PLL_CFG0);
+
+	return clk_wait_lock(pll);
+}
+
+static void clk_pll_unprepare(struct clk_hw *hw)
+{
+	struct clk_frac_pll *pll = to_clk_frac_pll(hw);
+	u32 val;
+
+	val = readl_relaxed(pll->base + PLL_CFG0);
+	val |= PLL_PD_MASK;
+	writel_relaxed(val, pll->base + PLL_CFG0);
+}
+
+static int clk_pll_is_prepared(struct clk_hw *hw)
+{
+	struct clk_frac_pll *pll = to_clk_frac_pll(hw);
+	u32 val;
+
+	val = readl_relaxed(pll->base + PLL_CFG0);
+	return (val & PLL_PD_MASK) ? 0 : 1;
+}
+
+static unsigned long clk_pll_recalc_rate(struct clk_hw *hw,
+					 unsigned long parent_rate)
+{
+	struct clk_frac_pll *pll = to_clk_frac_pll(hw);
+	u32 val, divff, divfi, divq;
+	u64 temp64 = parent_rate;
+	u64 rate;
+
+	val = readl_relaxed(pll->base + PLL_CFG0);
+	divq = (FIELD_GET(PLL_OUTPUT_DIV_MASK, val) + 1) * 2;
+	val = readl_relaxed(pll->base + PLL_CFG1);
+	divff = FIELD_GET(PLL_FRAC_DIV_MASK, val);
+	divfi = FIELD_GET(PLL_INT_DIV_MASK, val);
+
+	temp64 *= 8;
+	temp64 *= divff;
+	do_div(temp64, PLL_FRAC_DENOM);
+	do_div(temp64, divq);
+
+	rate = parent_rate * 8 * (divfi + 1);
+	do_div(rate, divq);
+	rate += temp64;
+
+	return rate;
+}
+
+static long clk_pll_round_rate(struct clk_hw *hw, unsigned long rate,
+			       unsigned long *prate)
+{
+	u64 parent_rate = *prate;
+	u32 divff, divfi;
+	u64 temp64;
+
+	parent_rate *= 8;
+	rate *= 2;
+	temp64 = rate;
+	do_div(temp64, parent_rate);
+	divfi = temp64;
+	temp64 = rate - divfi * parent_rate;
+	temp64 *= PLL_FRAC_DENOM;
+	do_div(temp64, parent_rate);
+	divff = temp64;
+
+	temp64 = parent_rate;
+	temp64 *= divff;
+	do_div(temp64, PLL_FRAC_DENOM);
+
+	rate = parent_rate * divfi + temp64;
+
+	return rate / 2;
+}
+
+/*
+ * To simplify the clock calculation, we can keep the 'PLL_OUTPUT_VAL' at zero
+ * (means the PLL output will be divided by 2). So the PLL output can use
+ * the below formula:
+ * pllout = parent_rate * 8 / 2 * DIVF_VAL;
+ * where DIVF_VAL = 1 + DIVFI + DIVFF / 2^24.
+ */
+static int clk_pll_set_rate(struct clk_hw *hw, unsigned long rate,
+			    unsigned long parent_rate)
+{
+	struct clk_frac_pll *pll = to_clk_frac_pll(hw);
+	u32 val, divfi, divff;
+	u64 temp64 = parent_rate;
+	int ret;
+
+	parent_rate *= 8;
+	rate *= 2;
+	divfi = rate / parent_rate;
+	temp64 *= rate - divfi;
+	temp64 *= PLL_FRAC_DENOM;
+	do_div(temp64, parent_rate);
+	divff = temp64;
+
+	val = readl_relaxed(pll->base + PLL_CFG1);
+	val &= ~(PLL_FRAC_DIV_MASK | PLL_INT_DIV_MASK);
+	val |= (divff << 7) | (divfi - 1);
+	writel_relaxed(val, pll->base + PLL_CFG1);
+
+	val = readl_relaxed(pll->base + PLL_CFG0);
+	val &= ~0x1f;
+	writel_relaxed(val, pll->base + PLL_CFG0);
+
+	/* Set the NEV_DIV_VAL to reload the DIVFI and DIVFF */
+	val = readl_relaxed(pll->base + PLL_CFG0);
+	val |= PLL_NEWDIV_VAL;
+	writel_relaxed(val, pll->base + PLL_CFG0);
+
+	ret = clk_wait_ack(pll);
+
+	/* clear the NEV_DIV_VAL */
+	val = readl_relaxed(pll->base + PLL_CFG0);
+	val &= ~PLL_NEWDIV_VAL;
+	writel_relaxed(val, pll->base + PLL_CFG0);
+
+	return ret;
+}
+
+static const struct clk_ops clk_frac_pll_ops = {
+	.prepare	= clk_pll_prepare,
+	.unprepare	= clk_pll_unprepare,
+	.is_prepared	= clk_pll_is_prepared,
+	.recalc_rate	= clk_pll_recalc_rate,
+	.round_rate	= clk_pll_round_rate,
+	.set_rate	= clk_pll_set_rate,
+};
+
+struct clk *imx_clk_frac_pll(const char *name, const char *parent_name,
+			     void __iomem *base)
+{
+	struct clk_init_data init;
+	struct clk_frac_pll *pll;
+	struct clk_hw *hw;
+	int ret;
+
+	pll = kzalloc(sizeof(*pll), GFP_KERNEL);
+	if (!pll)
+		return ERR_PTR(-ENOMEM);
+
+	init.name = name;
+	init.ops = &clk_frac_pll_ops;
+	init.flags = 0;
+	init.parent_names = &parent_name;
+	init.num_parents = 1;
+
+	pll->base = base;
+	pll->hw.init = &init;
+
+	hw = &pll->hw;
+
+	ret = clk_hw_register(NULL, hw);
+	if (ret) {
+		kfree(pll);
+		return ERR_PTR(ret);
+	}
+
+	return hw->clk;
+}

drivers/clk/imx/clk-imx6q.c

@@ -225,6 +225,41 @@ static void of_assigned_ldb_sels(struct device_node *node,
 	}
 }
 
+static bool pll6_bypassed(struct device_node *node)
+{
+	int index, ret, num_clocks;
+	struct of_phandle_args clkspec;
+
+	num_clocks = of_count_phandle_with_args(node, "assigned-clocks",
+						"#clock-cells");
+	if (num_clocks < 0)
+		return false;
+
+	for (index = 0; index < num_clocks; index++) {
+		ret = of_parse_phandle_with_args(node, "assigned-clocks",
+						 "#clock-cells", index,
+						 &clkspec);
+		if (ret < 0)
+			return false;
+
+		if (clkspec.np == node &&
+		    clkspec.args[0] == IMX6QDL_PLL6_BYPASS)
+			break;
+	}
+
+	/* PLL6 bypass is not part of the assigned clock list */
+	if (index == num_clocks)
+		return false;
+
+	ret = of_parse_phandle_with_args(node, "assigned-clock-parents",
+					 "#clock-cells", index, &clkspec);
+
+	if (clkspec.args[0] != IMX6QDL_CLK_PLL6)
+		return true;
+
+	return false;
+}
+
 #define CCM_CCDR		0x04
 #define CCM_CCSR		0x0c
 #define CCM_CS2CDR		0x2c
@@ -414,12 +449,24 @@ static void __init imx6q_clocks_init(struct device_node *ccm_node)
 	int ret;
 
 	clk[IMX6QDL_CLK_DUMMY] = imx_clk_fixed("dummy", 0);
-	clk[IMX6QDL_CLK_CKIL] = imx_obtain_fixed_clock("ckil", 0);
-	clk[IMX6QDL_CLK_CKIH] = imx_obtain_fixed_clock("ckih1", 0);
-	clk[IMX6QDL_CLK_OSC] = imx_obtain_fixed_clock("osc", 0);
+	clk[IMX6QDL_CLK_CKIL] = of_clk_get_by_name(ccm_node, "ckil");
+	if (IS_ERR(clk[IMX6QDL_CLK_CKIL]))
+		clk[IMX6QDL_CLK_CKIL] = imx_obtain_fixed_clock("ckil", 0);
+	clk[IMX6QDL_CLK_CKIH] = of_clk_get_by_name(ccm_node, "ckih1");
+	if (IS_ERR(clk[IMX6QDL_CLK_CKIH]))
+		clk[IMX6QDL_CLK_CKIH] = imx_obtain_fixed_clock("ckih1", 0);
+	clk[IMX6QDL_CLK_OSC] = of_clk_get_by_name(ccm_node, "osc");
+	if (IS_ERR(clk[IMX6QDL_CLK_OSC]))
+		clk[IMX6QDL_CLK_OSC] = imx_obtain_fixed_clock("osc", 0);
+
 	/* Clock source from external clock via CLK1/2 PADs */
-	clk[IMX6QDL_CLK_ANACLK1] = imx_obtain_fixed_clock("anaclk1", 0);
-	clk[IMX6QDL_CLK_ANACLK2] = imx_obtain_fixed_clock("anaclk2", 0);
+	clk[IMX6QDL_CLK_ANACLK1] = of_clk_get_by_name(ccm_node, "anaclk1");
+	if (IS_ERR(clk[IMX6QDL_CLK_ANACLK1]))
+		clk[IMX6QDL_CLK_ANACLK1] = imx_obtain_fixed_clock("anaclk1", 0);
+
+	clk[IMX6QDL_CLK_ANACLK2] = of_clk_get_by_name(ccm_node, "anaclk2");
+	if (IS_ERR(clk[IMX6QDL_CLK_ANACLK2]))
+		clk[IMX6QDL_CLK_ANACLK2] = imx_obtain_fixed_clock("anaclk2", 0);
 
 	np = of_find_compatible_node(NULL, NULL, "fsl,imx6q-anatop");
 	anatop_base = base = of_iomap(np, 0);
@@ -491,16 +538,32 @@ static void __init imx6q_clocks_init(struct device_node *ccm_node)
 	clk[IMX6QDL_CLK_USBPHY1_GATE] = imx_clk_gate("usbphy1_gate", "dummy", base + 0x10, 6);
 	clk[IMX6QDL_CLK_USBPHY2_GATE] = imx_clk_gate("usbphy2_gate", "dummy", base + 0x20, 6);
 
-	clk[IMX6QDL_CLK_SATA_REF] = imx_clk_fixed_factor("sata_ref", "pll6_enet", 1, 5);
-	clk[IMX6QDL_CLK_PCIE_REF] = imx_clk_fixed_factor("pcie_ref", "pll6_enet", 1, 4);
+	/*
+	 * The ENET PLL is special in that is has multiple outputs with
+	 * different post-dividers that are all affected by the single bypass
+	 * bit, so a single mux bit affects 3 independent branches of the clock
+	 * tree. There is no good way to model this in the clock framework and
+	 * dynamically changing the bypass bit, will yield unexpected results.
+	 * So we treat any configuration that bypasses the ENET PLL as
+	 * essentially static with the divider ratios reflecting the bypass
+	 * status.
+	 *
+	 */
+	if (!pll6_bypassed(ccm_node)) {
+		clk[IMX6QDL_CLK_SATA_REF] = imx_clk_fixed_factor("sata_ref", "pll6_enet", 1, 5);
+		clk[IMX6QDL_CLK_PCIE_REF] = imx_clk_fixed_factor("pcie_ref", "pll6_enet", 1, 4);
+		clk[IMX6QDL_CLK_ENET_REF] = clk_register_divider_table(NULL, "enet_ref", "pll6_enet", 0,
+						base + 0xe0, 0, 2, 0, clk_enet_ref_table,
+						&imx_ccm_lock);
+	} else {
+		clk[IMX6QDL_CLK_SATA_REF] = imx_clk_fixed_factor("sata_ref", "pll6_enet", 1, 1);
+		clk[IMX6QDL_CLK_PCIE_REF] = imx_clk_fixed_factor("pcie_ref", "pll6_enet", 1, 1);
+		clk[IMX6QDL_CLK_ENET_REF] = imx_clk_fixed_factor("enet_ref", "pll6_enet", 1, 1);
+	}
 
 	clk[IMX6QDL_CLK_SATA_REF_100M] = imx_clk_gate("sata_ref_100m", "sata_ref", base + 0xe0, 20);
 	clk[IMX6QDL_CLK_PCIE_REF_125M] = imx_clk_gate("pcie_ref_125m", "pcie_ref", base + 0xe0, 19);
 
-	clk[IMX6QDL_CLK_ENET_REF] = clk_register_divider_table(NULL, "enet_ref", "pll6_enet", 0,
-			base + 0xe0, 0, 2, 0, clk_enet_ref_table,
-			&imx_ccm_lock);
-
 	clk[IMX6QDL_CLK_LVDS1_SEL] = imx_clk_mux("lvds1_sel", base + 0x160, 0, 5, lvds_sels, ARRAY_SIZE(lvds_sels));
 	clk[IMX6QDL_CLK_LVDS2_SEL] = imx_clk_mux("lvds2_sel", base + 0x160, 5, 5, lvds_sels, ARRAY_SIZE(lvds_sels));
 
@@ -508,8 +571,12 @@ static void __init imx6q_clocks_init(struct device_node *ccm_node)
 	 * lvds1_gate and lvds2_gate are pseudo-gates.  Both can be
 	 * independently configured as clock inputs or outputs.  We treat
 	 * the "output_enable" bit as a gate, even though it's really just
-	 * enabling clock output.
+	 * enabling clock output. Initially the gate bits are cleared, as
+	 * otherwise the exclusive configuration gets locked in the setup done
+	 * by software running before the clock driver, with no way to change
+	 * it.
 	 */
+	writel(readl(base + 0x160) & ~0x3c00, base + 0x160);
 	clk[IMX6QDL_CLK_LVDS1_GATE] = imx_clk_gate_exclusive("lvds1_gate", "lvds1_sel", base + 0x160, 10, BIT(12));
 	clk[IMX6QDL_CLK_LVDS2_GATE] = imx_clk_gate_exclusive("lvds2_gate", "lvds2_sel", base + 0x160, 11, BIT(13));
 
@@ -737,6 +804,8 @@ static void __init imx6q_clocks_init(struct device_node *ccm_node)
 	clk[IMX6QDL_CLK_CAN1_SERIAL]  = imx_clk_gate2("can1_serial",   "can_root",          base + 0x68, 16);
 	clk[IMX6QDL_CLK_CAN2_IPG]     = imx_clk_gate2("can2_ipg",      "ipg",               base + 0x68, 18);
 	clk[IMX6QDL_CLK_CAN2_SERIAL]  = imx_clk_gate2("can2_serial",   "can_root",          base + 0x68, 20);
+	clk[IMX6QDL_CLK_DCIC1]        = imx_clk_gate2("dcic1",         "ipu1_podf",         base + 0x68, 24);
+	clk[IMX6QDL_CLK_DCIC2]        = imx_clk_gate2("dcic2",         "ipu2_podf",         base + 0x68, 26);
 	clk[IMX6QDL_CLK_ECSPI1]       = imx_clk_gate2("ecspi1",        "ecspi_root",        base + 0x6c, 0);
 	clk[IMX6QDL_CLK_ECSPI2]       = imx_clk_gate2("ecspi2",        "ecspi_root",        base + 0x6c, 2);
 	clk[IMX6QDL_CLK_ECSPI3]       = imx_clk_gate2("ecspi3",        "ecspi_root",        base + 0x6c, 4);

drivers/clk/imx/clk-imx6sl.c

@@ -17,6 +17,8 @@
 
 #include "clk.h"
 
+#define CCDR				0x4
+#define BM_CCM_CCDR_MMDC_CH0_MASK	(1 << 17)
 #define CCSR			0xc
 #define BM_CCSR_PLL1_SW_CLK_SEL	(1 << 2)
 #define CACRR			0x10
@@ -411,6 +413,10 @@ static void __init imx6sl_clocks_init(struct device_node *ccm_node)
 	clks[IMX6SL_CLK_USDHC3]       = imx_clk_gate2("usdhc3",       "usdhc3_podf",       base + 0x80, 6);
 	clks[IMX6SL_CLK_USDHC4]       = imx_clk_gate2("usdhc4",       "usdhc4_podf",       base + 0x80, 8);
 
+	/* Ensure the MMDC CH0 handshake is bypassed */
+	writel_relaxed(readl_relaxed(base + CCDR) |
+		BM_CCM_CCDR_MMDC_CH0_MASK, base + CCDR);
+
 	imx_check_clocks(clks, ARRAY_SIZE(clks));
 
 	clk_data.clks = clks;

drivers/clk/imx/clk-imx7d.c

@@ -886,9 +886,6 @@ static void __init imx7d_clocks_init(struct device_node *ccm_node)
 	/* use old gpt clk setting, gpt1 root clk must be twice as gpt counter freq */
 	clk_set_parent(clks[IMX7D_GPT1_ROOT_SRC], clks[IMX7D_OSC_24M_CLK]);
 
-	/* set uart module clock's parent clock source that must be great then 80MHz */
-	clk_set_parent(clks[IMX7D_UART1_ROOT_SRC], clks[IMX7D_OSC_24M_CLK]);
-
 	/* Set clock rate for USBPHY, the USB_PLL at CCM is from USBOTG2 */
 	clks[IMX7D_USB1_MAIN_480M_CLK] = imx_clk_fixed_factor("pll_usb1_main_clk", "osc", 20, 1);
 	clks[IMX7D_USB_MAIN_480M_CLK] = imx_clk_fixed_factor("pll_usb_main_clk", "osc", 20, 1);

drivers/clk/imx/clk-imx8qxp-lpcg.h

+/* SPDX-License-Identifier: GPL-2.0+ */
+/*
+ * Copyright 2018 NXP
+ *   Dong Aisheng <aisheng.dong@nxp.com>
+ */
+
+#ifndef _IMX8QXP_LPCG_H
+#define _IMX8QXP_LPCG_H
+
+/*LSIO SS */
+#define LSIO_PWM_0_LPCG			0x00000
+#define LSIO_PWM_1_LPCG			0x10000
+#define LSIO_PWM_2_LPCG			0x20000
+#define LSIO_PWM_3_LPCG			0x30000
+#define LSIO_PWM_4_LPCG			0x40000
+#define LSIO_PWM_5_LPCG			0x50000
+#define LSIO_PWM_6_LPCG			0x60000
+#define LSIO_PWM_7_LPCG			0x70000
+#define LSIO_GPIO_0_LPCG		0x80000
+#define LSIO_GPIO_1_LPCG		0x90000
+#define LSIO_GPIO_2_LPCG		0xa0000
+#define LSIO_GPIO_3_LPCG		0xb0000
+#define LSIO_GPIO_4_LPCG		0xc0000
+#define LSIO_GPIO_5_LPCG		0xd0000
+#define LSIO_GPIO_6_LPCG		0xe0000
+#define LSIO_GPIO_7_LPCG		0xf0000
+#define LSIO_FSPI_0_LPCG		0x120000
+#define LSIO_FSPI_1_LPCG		0x130000
+#define LSIO_GPT_0_LPCG			0x140000
+#define LSIO_GPT_1_LPCG			0x150000
+#define LSIO_GPT_2_LPCG			0x160000
+#define LSIO_GPT_3_LPCG			0x170000
+#define LSIO_GPT_4_LPCG			0x180000
+#define LSIO_OCRAM_LPCG			0x190000
+#define LSIO_KPP_LPCG			0x1a0000
+#define LSIO_ROMCP_LPCG			0x100000
+
+/* Connectivity SS */
+#define CONN_USDHC_0_LPCG		0x00000
+#define CONN_USDHC_1_LPCG		0x10000
+#define CONN_USDHC_2_LPCG		0x20000
+#define CONN_ENET_0_LPCG		0x30000
+#define CONN_ENET_1_LPCG		0x40000
+#define CONN_DTCP_LPCG			0x50000
+#define CONN_MLB_LPCG			0x60000
+#define CONN_USB_2_LPCG			0x70000
+#define CONN_USB_3_LPCG			0x80000
+#define CONN_NAND_LPCG			0x90000
+#define CONN_EDMA_LPCG			0xa0000
+
+/* ADMA SS */
+#define ADMA_ASRC_0_LPCG		0x400000
+#define ADMA_ESAI_0_LPCG		0x410000
+#define ADMA_SPDIF_0_LPCG		0x420000
+#define ADMA_SAI_0_LPCG			0x440000
+#define ADMA_SAI_1_LPCG			0x450000
+#define ADMA_SAI_2_LPCG			0x460000
+#define ADMA_SAI_3_LPCG			0x470000
+#define ADMA_GPT_5_LPCG			0x4b0000
+#define ADMA_GPT_6_LPCG			0x4c0000
+#define ADMA_GPT_7_LPCG			0x4d0000
+#define ADMA_GPT_8_LPCG			0x4e0000
+#define ADMA_GPT_9_LPCG			0x4f0000
+#define ADMA_GPT_10_LPCG		0x500000
+#define ADMA_HIFI_LPCG			0x580000
+#define ADMA_OCRAM_LPCG			0x590000
+#define ADMA_EDMA_0_LPCG		0x5f0000
+#define ADMA_ASRC_1_LPCG		0xc00000
+#define ADMA_SAI_4_LPCG			0xc20000
+#define ADMA_SAI_5_LPCG			0xc30000
+#define ADMA_AMIX_LPCG			0xc40000
+#define ADMA_MQS_LPCG			0xc50000
+#define ADMA_ACM_LPCG			0xc60000
+#define ADMA_REC_CLK0_LPCG		0xd00000
+#define ADMA_REC_CLK1_LPCG		0xd10000
+#define ADMA_PLL_CLK0_LPCG		0xd20000
+#define ADMA_PLL_CLK1_LPCG		0xd30000
+#define ADMA_MCLKOUT0_LPCG		0xd50000
+#define ADMA_MCLKOUT1_LPCG		0xd60000
+#define ADMA_EDMA_1_LPCG		0xdf0000
+#define ADMA_LPSPI_0_LPCG		0x1400000
+#define ADMA_LPSPI_1_LPCG		0x1410000
+#define ADMA_LPSPI_2_LPCG		0x1420000
+#define ADMA_LPSPI_3_LPCG		0x1430000
+#define ADMA_LPUART_0_LPCG		0x1460000
+#define ADMA_LPUART_1_LPCG		0x1470000
+#define ADMA_LPUART_2_LPCG		0x1480000
+#define ADMA_LPUART_3_LPCG		0x1490000
+#define ADMA_LCD_LPCG			0x1580000
+#define ADMA_PWM_LPCG			0x1590000
+#define ADMA_LPI2C_0_LPCG		0x1c00000
+#define ADMA_LPI2C_1_LPCG		0x1c10000
+#define ADMA_LPI2C_2_LPCG		0x1c20000
+#define ADMA_LPI2C_3_LPCG		0x1c30000
+#define ADMA_ADC_0_LPCG			0x1c80000
+#define ADMA_FTM_0_LPCG			0x1ca0000
+#define ADMA_FTM_1_LPCG			0x1cb0000
+#define ADMA_FLEXCAN_0_LPCG		0x1cd0000
+#define ADMA_FLEXCAN_1_LPCG		0x1ce0000
+#define ADMA_FLEXCAN_2_LPCG		0x1cf0000
+
+#endif /* _IMX8QXP_LPCG_H */

drivers/clk/imx/clk-imx8qxp.c

+// SPDX-License-Identifier: GPL-2.0+
+/*
+ * Copyright 2018 NXP
+ *	Dong Aisheng <aisheng.dong@nxp.com>
+ */
+
+#include <linux/clk-provider.h>
+#include <linux/err.h>
+#include <linux/io.h>
+#include <linux/module.h>
+#include <linux/of.h>
+#include <linux/platform_device.h>
+#include <linux/slab.h>
+
+#include "clk-scu.h"
+
+#include <dt-bindings/clock/imx8qxp-clock.h>
+#include <dt-bindings/firmware/imx/rsrc.h>
+
+static int imx8qxp_clk_probe(struct platform_device *pdev)
+{
+	struct device_node *ccm_node = pdev->dev.of_node;
+	struct clk_hw_onecell_data *clk_data;
+	struct clk_hw **clks;
+	int ret, i;
+
+	ret = imx_clk_scu_init();
+	if (ret)
+		return ret;
+
+	clk_data = devm_kzalloc(&pdev->dev, struct_size(clk_data, hws,
+				IMX8QXP_SCU_CLK_END), GFP_KERNEL);
+	if (!clk_data)
+		return -ENOMEM;
+
+	clk_data->num = IMX8QXP_SCU_CLK_END;
+	clks = clk_data->hws;
+
+	/* Fixed clocks */
+	clks[IMX8QXP_CLK_DUMMY]			= clk_hw_register_fixed_rate(NULL, "dummy", NULL, 0, 0);
+	clks[IMX8QXP_ADMA_IPG_CLK_ROOT] 	= clk_hw_register_fixed_rate(NULL, "dma_ipg_clk_root", NULL, 0, 120000000);
+	clks[IMX8QXP_CONN_AXI_CLK_ROOT]		= clk_hw_register_fixed_rate(NULL, "conn_axi_clk_root", NULL, 0, 333333333);
+	clks[IMX8QXP_CONN_AHB_CLK_ROOT]		= clk_hw_register_fixed_rate(NULL, "conn_ahb_clk_root", NULL, 0, 166666666);
+	clks[IMX8QXP_CONN_IPG_CLK_ROOT]		= clk_hw_register_fixed_rate(NULL, "conn_ipg_clk_root", NULL, 0, 83333333);
+	clks[IMX8QXP_DC_AXI_EXT_CLK]		= clk_hw_register_fixed_rate(NULL, "dc_axi_ext_clk_root", NULL, 0, 800000000);
+	clks[IMX8QXP_DC_AXI_INT_CLK]		= clk_hw_register_fixed_rate(NULL, "dc_axi_int_clk_root", NULL, 0, 400000000);
+	clks[IMX8QXP_DC_CFG_CLK]		= clk_hw_register_fixed_rate(NULL, "dc_cfg_clk_root", NULL, 0, 100000000);
+	clks[IMX8QXP_MIPI_IPG_CLK]		= clk_hw_register_fixed_rate(NULL, "mipi_ipg_clk_root", NULL, 0, 120000000);
+	clks[IMX8QXP_IMG_AXI_CLK]		= clk_hw_register_fixed_rate(NULL, "img_axi_clk_root", NULL, 0, 400000000);
+	clks[IMX8QXP_IMG_IPG_CLK]		= clk_hw_register_fixed_rate(NULL, "img_ipg_clk_root", NULL, 0, 200000000);
+	clks[IMX8QXP_IMG_PXL_CLK]		= clk_hw_register_fixed_rate(NULL, "img_pxl_clk_root", NULL, 0, 600000000);
+	clks[IMX8QXP_HSIO_AXI_CLK]		= clk_hw_register_fixed_rate(NULL, "hsio_axi_clk_root", NULL, 0, 400000000);
+	clks[IMX8QXP_HSIO_PER_CLK]		= clk_hw_register_fixed_rate(NULL, "hsio_per_clk_root", NULL, 0, 133333333);
+	clks[IMX8QXP_LSIO_MEM_CLK]		= clk_hw_register_fixed_rate(NULL, "lsio_mem_clk_root", NULL, 0, 200000000);
+	clks[IMX8QXP_LSIO_BUS_CLK]		= clk_hw_register_fixed_rate(NULL, "lsio_bus_clk_root", NULL, 0, 100000000);
+
+	/* ARM core */
+	clks[IMX8QXP_A35_CLK]			= imx_clk_scu("a35_clk", IMX_SC_R_A35, IMX_SC_PM_CLK_CPU);
+
+	/* LSIO SS */
+	clks[IMX8QXP_LSIO_PWM0_CLK]		= imx_clk_scu("pwm0_clk", IMX_SC_R_PWM_0, IMX_SC_PM_CLK_PER);
+	clks[IMX8QXP_LSIO_PWM1_CLK]		= imx_clk_scu("pwm1_clk", IMX_SC_R_PWM_1, IMX_SC_PM_CLK_PER);
+	clks[IMX8QXP_LSIO_PWM2_CLK]		= imx_clk_scu("pwm2_clk", IMX_SC_R_PWM_2, IMX_SC_PM_CLK_PER);
+	clks[IMX8QXP_LSIO_PWM3_CLK]		= imx_clk_scu("pwm3_clk", IMX_SC_R_PWM_3, IMX_SC_PM_CLK_PER);
+	clks[IMX8QXP_LSIO_PWM4_CLK]		= imx_clk_scu("pwm4_clk", IMX_SC_R_PWM_4, IMX_SC_PM_CLK_PER);
+	clks[IMX8QXP_LSIO_PWM5_CLK]		= imx_clk_scu("pwm5_clk", IMX_SC_R_PWM_5, IMX_SC_PM_CLK_PER);
+	clks[IMX8QXP_LSIO_PWM6_CLK]		= imx_clk_scu("pwm6_clk", IMX_SC_R_PWM_6, IMX_SC_PM_CLK_PER);
+	clks[IMX8QXP_LSIO_PWM7_CLK]		= imx_clk_scu("pwm7_clk", IMX_SC_R_PWM_7, IMX_SC_PM_CLK_PER);
+	clks[IMX8QXP_LSIO_GPT0_CLK]		= imx_clk_scu("gpt0_clk", IMX_SC_R_GPT_0, IMX_SC_PM_CLK_PER);
+	clks[IMX8QXP_LSIO_GPT1_CLK]		= imx_clk_scu("gpt1_clk", IMX_SC_R_GPT_1, IMX_SC_PM_CLK_PER);
+	clks[IMX8QXP_LSIO_GPT2_CLK]		= imx_clk_scu("gpt2_clk", IMX_SC_R_GPT_2, IMX_SC_PM_CLK_PER);
+	clks[IMX8QXP_LSIO_GPT3_CLK]		= imx_clk_scu("gpt3_clk", IMX_SC_R_GPT_3, IMX_SC_PM_CLK_PER);
+	clks[IMX8QXP_LSIO_GPT4_CLK]		= imx_clk_scu("gpt4_clk", IMX_SC_R_GPT_4, IMX_SC_PM_CLK_PER);
+	clks[IMX8QXP_LSIO_FSPI0_CLK]		= imx_clk_scu("fspi0_clk", IMX_SC_R_FSPI_0, IMX_SC_PM_CLK_PER);
+	clks[IMX8QXP_LSIO_FSPI1_CLK]		= imx_clk_scu("fspi1_clk", IMX_SC_R_FSPI_1, IMX_SC_PM_CLK_PER);
+
+	/* ADMA SS */
+	clks[IMX8QXP_ADMA_UART0_CLK]		= imx_clk_scu("uart0_clk", IMX_SC_R_UART_0, IMX_SC_PM_CLK_PER);
+	clks[IMX8QXP_ADMA_UART1_CLK]		= imx_clk_scu("uart1_clk", IMX_SC_R_UART_1, IMX_SC_PM_CLK_PER);
+	clks[IMX8QXP_ADMA_UART2_CLK]		= imx_clk_scu("uart2_clk", IMX_SC_R_UART_2, IMX_SC_PM_CLK_PER);
+	clks[IMX8QXP_ADMA_UART3_CLK]		= imx_clk_scu("uart3_clk", IMX_SC_R_UART_3, IMX_SC_PM_CLK_PER);
+	clks[IMX8QXP_ADMA_SPI0_CLK]		= imx_clk_scu("spi0_clk",  IMX_SC_R_SPI_0, IMX_SC_PM_CLK_PER);
+	clks[IMX8QXP_ADMA_SPI1_CLK]		= imx_clk_scu("spi1_clk",  IMX_SC_R_SPI_1, IMX_SC_PM_CLK_PER);
+	clks[IMX8QXP_ADMA_SPI2_CLK]		= imx_clk_scu("spi2_clk",  IMX_SC_R_SPI_2, IMX_SC_PM_CLK_PER);
+	clks[IMX8QXP_ADMA_SPI3_CLK]		= imx_clk_scu("spi3_clk",  IMX_SC_R_SPI_3, IMX_SC_PM_CLK_PER);
+	clks[IMX8QXP_ADMA_CAN0_CLK]		= imx_clk_scu("can0_clk",  IMX_SC_R_CAN_0, IMX_SC_PM_CLK_PER);
+	clks[IMX8QXP_ADMA_I2C0_CLK]		= imx_clk_scu("i2c0_clk",  IMX_SC_R_I2C_0, IMX_SC_PM_CLK_PER);
+	clks[IMX8QXP_ADMA_I2C1_CLK]		= imx_clk_scu("i2c1_clk",  IMX_SC_R_I2C_1, IMX_SC_PM_CLK_PER);
+	clks[IMX8QXP_ADMA_I2C2_CLK]		= imx_clk_scu("i2c2_clk",  IMX_SC_R_I2C_2, IMX_SC_PM_CLK_PER);
+	clks[IMX8QXP_ADMA_I2C3_CLK]		= imx_clk_scu("i2c3_clk",  IMX_SC_R_I2C_3, IMX_SC_PM_CLK_PER);
+	clks[IMX8QXP_ADMA_FTM0_CLK]		= imx_clk_scu("ftm0_clk",  IMX_SC_R_FTM_0, IMX_SC_PM_CLK_PER);
+	clks[IMX8QXP_ADMA_FTM1_CLK]		= imx_clk_scu("ftm1_clk",  IMX_SC_R_FTM_1, IMX_SC_PM_CLK_PER);
+	clks[IMX8QXP_ADMA_ADC0_CLK]		= imx_clk_scu("adc0_clk",  IMX_SC_R_ADC_0, IMX_SC_PM_CLK_PER);
+	clks[IMX8QXP_ADMA_PWM_CLK]		= imx_clk_scu("pwm_clk",   IMX_SC_R_LCD_0_PWM_0, IMX_SC_PM_CLK_PER);
+	clks[IMX8QXP_ADMA_LCD_CLK]		= imx_clk_scu("lcd_clk",   IMX_SC_R_LCD_0, IMX_SC_PM_CLK_PER);
+
+	/* Connectivity */
+	clks[IMX8QXP_CONN_SDHC0_CLK]		= imx_clk_scu("sdhc0_clk", IMX_SC_R_SDHC_0, IMX_SC_PM_CLK_PER);
+	clks[IMX8QXP_CONN_SDHC1_CLK]		= imx_clk_scu("sdhc1_clk", IMX_SC_R_SDHC_1, IMX_SC_PM_CLK_PER);
+	clks[IMX8QXP_CONN_SDHC2_CLK]		= imx_clk_scu("sdhc2_clk", IMX_SC_R_SDHC_2, IMX_SC_PM_CLK_PER);
+	clks[IMX8QXP_CONN_ENET0_ROOT_CLK]	= imx_clk_scu("enet0_clk", IMX_SC_R_ENET_0, IMX_SC_PM_CLK_PER);
+	clks[IMX8QXP_CONN_ENET0_BYPASS_CLK]	= imx_clk_scu("enet0_bypass_clk", IMX_SC_R_ENET_0, IMX_SC_PM_CLK_BYPASS);
+	clks[IMX8QXP_CONN_ENET0_RGMII_CLK]	= imx_clk_scu("enet0_rgmii_clk", IMX_SC_R_ENET_0, IMX_SC_PM_CLK_MISC0);
+	clks[IMX8QXP_CONN_ENET1_ROOT_CLK]	= imx_clk_scu("enet1_clk", IMX_SC_R_ENET_1, IMX_SC_PM_CLK_PER);
+	clks[IMX8QXP_CONN_ENET1_BYPASS_CLK]	= imx_clk_scu("enet1_bypass_clk", IMX_SC_R_ENET_1, IMX_SC_PM_CLK_BYPASS);
+	clks[IMX8QXP_CONN_ENET1_RGMII_CLK]	= imx_clk_scu("enet1_rgmii_clk", IMX_SC_R_ENET_1, IMX_SC_PM_CLK_MISC0);
+	clks[IMX8QXP_CONN_GPMI_BCH_IO_CLK]	= imx_clk_scu("gpmi_io_clk", IMX_SC_R_NAND, IMX_SC_PM_CLK_MST_BUS);
+	clks[IMX8QXP_CONN_GPMI_BCH_CLK]		= imx_clk_scu("gpmi_bch_clk", IMX_SC_R_NAND, IMX_SC_PM_CLK_PER);
+	clks[IMX8QXP_CONN_USB2_ACLK]		= imx_clk_scu("usb3_aclk_div", IMX_SC_R_USB_2, IMX_SC_PM_CLK_PER);
+	clks[IMX8QXP_CONN_USB2_BUS_CLK]		= imx_clk_scu("usb3_bus_div", IMX_SC_R_USB_2, IMX_SC_PM_CLK_MST_BUS);
+	clks[IMX8QXP_CONN_USB2_LPM_CLK]		= imx_clk_scu("usb3_lpm_div", IMX_SC_R_USB_2, IMX_SC_PM_CLK_MISC);
+
+	/* Display controller SS */
+	clks[IMX8QXP_DC0_DISP0_CLK]		= imx_clk_scu("dc0_disp0_clk", IMX_SC_R_DC_0, IMX_SC_PM_CLK_MISC0);
+	clks[IMX8QXP_DC0_DISP1_CLK]		= imx_clk_scu("dc0_disp1_clk", IMX_SC_R_DC_0, IMX_SC_PM_CLK_MISC1);
+
+	/* MIPI-LVDS SS */
+	clks[IMX8QXP_MIPI0_I2C0_CLK]		= imx_clk_scu("mipi0_i2c0_clk", IMX_SC_R_MIPI_0_I2C_0, IMX_SC_PM_CLK_MISC2);
+	clks[IMX8QXP_MIPI0_I2C1_CLK]		= imx_clk_scu("mipi0_i2c1_clk", IMX_SC_R_MIPI_0_I2C_1, IMX_SC_PM_CLK_MISC2);
+
+	/* MIPI CSI SS */
+	clks[IMX8QXP_CSI0_CORE_CLK]		= imx_clk_scu("mipi_csi0_core_clk", IMX_SC_R_CSI_0, IMX_SC_PM_CLK_PER);
+	clks[IMX8QXP_CSI0_ESC_CLK]		= imx_clk_scu("mipi_csi0_esc_clk",  IMX_SC_R_CSI_0, IMX_SC_PM_CLK_MISC);
+	clks[IMX8QXP_CSI0_I2C0_CLK]		= imx_clk_scu("mipi_csi0_i2c0_clk", IMX_SC_R_CSI_0_I2C_0, IMX_SC_PM_CLK_PER);
+	clks[IMX8QXP_CSI0_PWM0_CLK]		= imx_clk_scu("mipi_csi0_pwm0_clk", IMX_SC_R_CSI_0_PWM_0, IMX_SC_PM_CLK_PER);
+
+	/* GPU SS */
+	clks[IMX8QXP_GPU0_CORE_CLK]		= imx_clk_scu("gpu_core0_clk",	 IMX_SC_R_GPU_0_PID0, IMX_SC_PM_CLK_PER);
+	clks[IMX8QXP_GPU0_SHADER_CLK]		= imx_clk_scu("gpu_shader0_clk", IMX_SC_R_GPU_0_PID0, IMX_SC_PM_CLK_MISC);
+
+	for (i = 0; i < clk_data->num; i++) {
+		if (IS_ERR(clks[i]))
+			pr_warn("i.MX clk %u: register failed with %ld\n",
+				i, PTR_ERR(clks[i]));
+	}
+
+	return of_clk_add_hw_provider(ccm_node, of_clk_hw_onecell_get, clk_data);
+}
+
+static const struct of_device_id imx8qxp_match[] = {
+	{ .compatible = "fsl,imx8qxp-clk", },
+	{ /* sentinel */ }
+};
+
+static struct platform_driver imx8qxp_clk_driver = {
+	.driver = {
+		.name = "imx8qxp-clk",
+		.of_match_table = imx8qxp_match,
+		.suppress_bind_attrs = true,
+	},
+	.probe = imx8qxp_clk_probe,
+};
+builtin_platform_driver(imx8qxp_clk_driver);

drivers/clk/imx/clk-lpcg-scu.c

+// SPDX-License-Identifier: GPL-2.0+
+/*
+ * Copyright 2018 NXP
+ *	Dong Aisheng <aisheng.dong@nxp.com>
+ */
+
+#include <linux/clk-provider.h>
+#include <linux/err.h>
+#include <linux/io.h>
+#include <linux/slab.h>
+#include <linux/spinlock.h>
+
+#include "clk-scu.h"
+
+static DEFINE_SPINLOCK(imx_lpcg_scu_lock);
+
+#define CLK_GATE_SCU_LPCG_MASK		0x3
+#define CLK_GATE_SCU_LPCG_HW_SEL	BIT(0)
+#define CLK_GATE_SCU_LPCG_SW_SEL	BIT(1)
+
+/*
+ * struct clk_lpcg_scu - Description of LPCG clock
+ *
+ * @hw: clk_hw of this LPCG
+ * @reg: register of this LPCG clock
+ * @bit_idx: bit index of this LPCG clock
+ * @hw_gate: HW auto gate enable
+ *
+ * This structure describes one LPCG clock
+ */
+struct clk_lpcg_scu {
+	struct clk_hw hw;
+	void __iomem *reg;
+	u8 bit_idx;
+	bool hw_gate;
+};
+
+#define to_clk_lpcg_scu(_hw) container_of(_hw, struct clk_lpcg_scu, hw)
+
+static int clk_lpcg_scu_enable(struct clk_hw *hw)
+{
+	struct clk_lpcg_scu *clk = to_clk_lpcg_scu(hw);
+	unsigned long flags;
+	u32 reg, val;
+
+	spin_lock_irqsave(&imx_lpcg_scu_lock, flags);
+
+	reg = readl_relaxed(clk->reg);
+	reg &= ~(CLK_GATE_SCU_LPCG_MASK << clk->bit_idx);
+
+	val = CLK_GATE_SCU_LPCG_SW_SEL;
+	if (clk->hw_gate)
+		val |= CLK_GATE_SCU_LPCG_HW_SEL;
+
+	reg |= val << clk->bit_idx;
+	writel(reg, clk->reg);
+
+	spin_unlock_irqrestore(&imx_lpcg_scu_lock, flags);
+
+	return 0;
+}
+
+static void clk_lpcg_scu_disable(struct clk_hw *hw)
+{
+	struct clk_lpcg_scu *clk = to_clk_lpcg_scu(hw);
+	unsigned long flags;
+	u32 reg;
+
+	spin_lock_irqsave(&imx_lpcg_scu_lock, flags);
+
+	reg = readl_relaxed(clk->reg);
+	reg &= ~(CLK_GATE_SCU_LPCG_MASK << clk->bit_idx);
+	writel(reg, clk->reg);
+
+	spin_unlock_irqrestore(&imx_lpcg_scu_lock, flags);
+}
+
+static const struct clk_ops clk_lpcg_scu_ops = {
+	.enable = clk_lpcg_scu_enable,
+	.disable = clk_lpcg_scu_disable,
+};
+
+struct clk_hw *imx_clk_lpcg_scu(const char *name, const char *parent_name,
+				unsigned long flags, void __iomem *reg,
+				u8 bit_idx, bool hw_gate)
+{
+	struct clk_lpcg_scu *clk;
+	struct clk_init_data init;
+	struct clk_hw *hw;
+	int ret;
+
+	clk = kzalloc(sizeof(*clk), GFP_KERNEL);
+	if (!clk)
+		return ERR_PTR(-ENOMEM);
+
+	clk->reg = reg;
+	clk->bit_idx = bit_idx;
+	clk->hw_gate = hw_gate;
+
+	init.name = name;
+	init.ops = &clk_lpcg_scu_ops;
+	init.flags = CLK_SET_RATE_PARENT | flags;
+	init.parent_names = parent_name ? &parent_name : NULL;
+	init.num_parents = parent_name ? 1 : 0;
+
+	clk->hw.init = &init;
+
+	hw = &clk->hw;
+	ret = clk_hw_register(NULL, hw);
+	if (ret) {
+		kfree(clk);
+		hw = ERR_PTR(ret);
+	}
+
+	return hw;
+}

drivers/clk/imx/clk-pfdv2.c

+// SPDX-License-Identifier: GPL-2.0+
+/*
+ * Copyright (C) 2016 Freescale Semiconductor, Inc.
+ * Copyright 2017~2018 NXP
+ *
+ * Author: Dong Aisheng <aisheng.dong@nxp.com>
+ *
+ */
+
+#include <linux/clk-provider.h>
+#include <linux/err.h>
+#include <linux/iopoll.h>
+#include <linux/slab.h>
+
+#include "clk.h"
+
+/**
+ * struct clk_pfdv2 - IMX PFD clock
+ * @clk_hw:	clock source
+ * @reg:	PFD register address
+ * @gate_bit:	Gate bit offset
+ * @vld_bit:	Valid bit offset
+ * @frac_off:	PLL Fractional Divider offset
+ */
+
+struct clk_pfdv2 {
+	struct clk_hw	hw;
+	void __iomem	*reg;
+	u8		gate_bit;
+	u8		vld_bit;
+	u8		frac_off;
+};
+
+#define to_clk_pfdv2(_hw) container_of(_hw, struct clk_pfdv2, hw)
+
+#define CLK_PFDV2_FRAC_MASK 0x3f
+
+#define LOCK_TIMEOUT_US		USEC_PER_MSEC
+
+static DEFINE_SPINLOCK(pfd_lock);
+
+static int clk_pfdv2_wait(struct clk_pfdv2 *pfd)
+{
+	u32 val;
+
+	return readl_poll_timeout(pfd->reg, val, val & pfd->vld_bit,
+				  0, LOCK_TIMEOUT_US);
+}
+
+static int clk_pfdv2_enable(struct clk_hw *hw)
+{
+	struct clk_pfdv2 *pfd = to_clk_pfdv2(hw);
+	unsigned long flags;
+	u32 val;
+
+	spin_lock_irqsave(&pfd_lock, flags);
+	val = readl_relaxed(pfd->reg);
+	val &= ~pfd->gate_bit;
+	writel_relaxed(val, pfd->reg);
+	spin_unlock_irqrestore(&pfd_lock, flags);
+
+	return clk_pfdv2_wait(pfd);
+}
+
+static void clk_pfdv2_disable(struct clk_hw *hw)
+{
+	struct clk_pfdv2 *pfd = to_clk_pfdv2(hw);
+	unsigned long flags;
+	u32 val;
+
+	spin_lock_irqsave(&pfd_lock, flags);
+	val = readl_relaxed(pfd->reg);
+	val |= pfd->gate_bit;
+	writel_relaxed(val, pfd->reg);
+	spin_unlock_irqrestore(&pfd_lock, flags);
+}
+
+static unsigned long clk_pfdv2_recalc_rate(struct clk_hw *hw,
+					   unsigned long parent_rate)
+{
+	struct clk_pfdv2 *pfd = to_clk_pfdv2(hw);
+	u64 tmp = parent_rate;
+	u8 frac;
+
+	frac = (readl_relaxed(pfd->reg) >> pfd->frac_off)
+		& CLK_PFDV2_FRAC_MASK;
+
+	if (!frac) {
+		pr_debug("clk_pfdv2: %s invalid pfd frac value 0\n",
+			 clk_hw_get_name(hw));
+		return 0;
+	}
+
+	tmp *= 18;
+	do_div(tmp, frac);
+
+	return tmp;
+}
+
+static long clk_pfdv2_round_rate(struct clk_hw *hw, unsigned long rate,
+				 unsigned long *prate)
+{
+	u64 tmp = *prate;
+	u8 frac;
+
+	tmp = tmp * 18 + rate / 2;
+	do_div(tmp, rate);
+	frac = tmp;
+
+	if (frac < 12)
+		frac = 12;
+	else if (frac > 35)
+		frac = 35;
+
+	tmp = *prate;
+	tmp *= 18;
+	do_div(tmp, frac);
+
+	return tmp;
+}
+
+static int clk_pfdv2_is_enabled(struct clk_hw *hw)
+{
+	struct clk_pfdv2 *pfd = to_clk_pfdv2(hw);
+
+	if (readl_relaxed(pfd->reg) & pfd->gate_bit)
+		return 0;
+
+	return 1;
+}
+
+static int clk_pfdv2_set_rate(struct clk_hw *hw, unsigned long rate,
+			      unsigned long parent_rate)
+{
+	struct clk_pfdv2 *pfd = to_clk_pfdv2(hw);
+	unsigned long flags;
+	u64 tmp = parent_rate;
+	u32 val;
+	u8 frac;
+
+	tmp = tmp * 18 + rate / 2;
+	do_div(tmp, rate);
+	frac = tmp;
+	if (frac < 12)
+		frac = 12;
+	else if (frac > 35)
+		frac = 35;
+
+	spin_lock_irqsave(&pfd_lock, flags);
+	val = readl_relaxed(pfd->reg);
+	val &= ~(CLK_PFDV2_FRAC_MASK << pfd->frac_off);
+	val |= frac << pfd->frac_off;
+	writel_relaxed(val, pfd->reg);
+	spin_unlock_irqrestore(&pfd_lock, flags);
+
+	return 0;
+}
+
+static const struct clk_ops clk_pfdv2_ops = {
+	.enable		= clk_pfdv2_enable,
+	.disable	= clk_pfdv2_disable,
+	.recalc_rate	= clk_pfdv2_recalc_rate,
+	.round_rate	= clk_pfdv2_round_rate,
+	.set_rate	= clk_pfdv2_set_rate,
+	.is_enabled     = clk_pfdv2_is_enabled,
+};
+
+struct clk_hw *imx_clk_pfdv2(const char *name, const char *parent_name,
+			     void __iomem *reg, u8 idx)
+{
+	struct clk_init_data init;
+	struct clk_pfdv2 *pfd;
+	struct clk_hw *hw;
+	int ret;
+
+	WARN_ON(idx > 3);
+
+	pfd = kzalloc(sizeof(*pfd), GFP_KERNEL);
+	if (!pfd)
+		return ERR_PTR(-ENOMEM);
+
+	pfd->reg = reg;
+	pfd->gate_bit = 1 << ((idx + 1) * 8 - 1);
+	pfd->vld_bit = pfd->gate_bit - 1;
+	pfd->frac_off = idx * 8;
+
+	init.name = name;
+	init.ops = &clk_pfdv2_ops;
+	init.parent_names = &parent_name;
+	init.num_parents = 1;
+	init.flags = CLK_SET_RATE_GATE;
+
+	pfd->hw.init = &init;
+
+	hw = &pfd->hw;
+	ret = clk_hw_register(NULL, hw);
+	if (ret) {
+		kfree(pfd);
+		hw = ERR_PTR(ret);
+	}
+
+	return hw;
+}

drivers/clk/imx/clk-pllv4.c

+// SPDX-License-Identifier: GPL-2.0+
+/*
+ * Copyright (C) 2016 Freescale Semiconductor, Inc.
+ * Copyright 2017~2018 NXP
+ *
+ * Author: Dong Aisheng <aisheng.dong@nxp.com>
+ *
+ */
+
+#include <linux/clk-provider.h>
+#include <linux/err.h>
+#include <linux/iopoll.h>
+#include <linux/slab.h>
+
+#include "clk.h"
+
+/* PLL Control Status Register (xPLLCSR) */
+#define PLL_CSR_OFFSET		0x0
+#define PLL_VLD			BIT(24)
+#define PLL_EN			BIT(0)
+
+/* PLL Configuration Register (xPLLCFG) */
+#define PLL_CFG_OFFSET		0x08
+#define BP_PLL_MULT		16
+#define BM_PLL_MULT		(0x7f << 16)
+
+/* PLL Numerator Register (xPLLNUM) */
+#define PLL_NUM_OFFSET		0x10
+
+/* PLL Denominator Register (xPLLDENOM) */
+#define PLL_DENOM_OFFSET	0x14
+
+struct clk_pllv4 {
+	struct clk_hw	hw;
+	void __iomem	*base;
+};
+
+/* Valid PLL MULT Table */
+static const int pllv4_mult_table[] = {33, 27, 22, 20, 17, 16};
+
+#define to_clk_pllv4(__hw) container_of(__hw, struct clk_pllv4, hw)
+
+#define LOCK_TIMEOUT_US		USEC_PER_MSEC
+
+static inline int clk_pllv4_wait_lock(struct clk_pllv4 *pll)
+{
+	u32 csr;
+
+	return readl_poll_timeout(pll->base  + PLL_CSR_OFFSET,
+				  csr, csr & PLL_VLD, 0, LOCK_TIMEOUT_US);
+}
+
+static int clk_pllv4_is_enabled(struct clk_hw *hw)
+{
+	struct clk_pllv4 *pll = to_clk_pllv4(hw);
+
+	if (readl_relaxed(pll->base) & PLL_EN)
+		return 1;
+
+	return 0;
+}
+
+static unsigned long clk_pllv4_recalc_rate(struct clk_hw *hw,
+					   unsigned long parent_rate)
+{
+	struct clk_pllv4 *pll = to_clk_pllv4(hw);
+	u32 div;
+
+	div = readl_relaxed(pll->base + PLL_CFG_OFFSET);
+	div &= BM_PLL_MULT;
+	div >>= BP_PLL_MULT;
+
+	return parent_rate * div;
+}
+
+static long clk_pllv4_round_rate(struct clk_hw *hw, unsigned long rate,
+				 unsigned long *prate)
+{
+	unsigned long parent_rate = *prate;
+	unsigned long round_rate, i;
+
+	for (i = 0; i < ARRAY_SIZE(pllv4_mult_table); i++) {
+		round_rate = parent_rate * pllv4_mult_table[i];
+		if (rate >= round_rate)
+			return round_rate;
+	}
+
+	return round_rate;
+}
+
+static bool clk_pllv4_is_valid_mult(unsigned int mult)
+{
+	int i;
+
+	/* check if mult is in valid MULT table */
+	for (i = 0; i < ARRAY_SIZE(pllv4_mult_table); i++) {
+		if (pllv4_mult_table[i] == mult)
+			return true;
+	}
+
+	return false;
+}
+
+static int clk_pllv4_set_rate(struct clk_hw *hw, unsigned long rate,
+			      unsigned long parent_rate)
+{
+	struct clk_pllv4 *pll = to_clk_pllv4(hw);
+	u32 val, mult;
+
+	mult = rate / parent_rate;
+
+	if (!clk_pllv4_is_valid_mult(mult))
+		return -EINVAL;
+
+	val = readl_relaxed(pll->base + PLL_CFG_OFFSET);
+	val &= ~BM_PLL_MULT;
+	val |= mult << BP_PLL_MULT;
+	writel_relaxed(val, pll->base + PLL_CFG_OFFSET);
+
+	return 0;
+}
+
+static int clk_pllv4_enable(struct clk_hw *hw)
+{
+	u32 val;
+	struct clk_pllv4 *pll = to_clk_pllv4(hw);
+
+	val = readl_relaxed(pll->base);
+	val |= PLL_EN;
+	writel_relaxed(val, pll->base);
+
+	return clk_pllv4_wait_lock(pll);
+}
+
+static void clk_pllv4_disable(struct clk_hw *hw)
+{
+	u32 val;
+	struct clk_pllv4 *pll = to_clk_pllv4(hw);
+
+	val = readl_relaxed(pll->base);
+	val &= ~PLL_EN;
+	writel_relaxed(val, pll->base);
+}
+
+static const struct clk_ops clk_pllv4_ops = {
+	.recalc_rate	= clk_pllv4_recalc_rate,
+	.round_rate	= clk_pllv4_round_rate,
+	.set_rate	= clk_pllv4_set_rate,
+	.enable		= clk_pllv4_enable,
+	.disable	= clk_pllv4_disable,
+	.is_enabled	= clk_pllv4_is_enabled,
+};
+
+struct clk_hw *imx_clk_pllv4(const char *name, const char *parent_name,
+			  void __iomem *base)
+{
+	struct clk_pllv4 *pll;
+	struct clk_hw *hw;
+	struct clk_init_data init;
+	int ret;
+
+	pll = kzalloc(sizeof(*pll), GFP_KERNEL);
+	if (!pll)
+		return ERR_PTR(-ENOMEM);
+
+	pll->base = base;
+
+	init.name = name;
+	init.ops = &clk_pllv4_ops;
+	init.parent_names = &parent_name;
+	init.num_parents = 1;
+	init.flags = CLK_SET_RATE_GATE;
+
+	pll->hw.init = &init;
+
+	hw = &pll->hw;
+	ret = clk_hw_register(NULL, hw);
+	if (ret) {
+		kfree(pll);
+		hw = ERR_PTR(ret);
+	}
+
+	return hw;
+}

drivers/clk/imx/clk-sccg-pll.c

+// SPDX-License-Identifier: (GPL-2.0 OR MIT)
+/*
+ * Copyright 2018 NXP.
+ *
+ * This driver supports the SCCG plls found in the imx8m SOCs
+ *
+ * Documentation for this SCCG pll can be found at:
+ *   https://www.nxp.com/docs/en/reference-manual/IMX8MDQLQRM.pdf#page=834
+ */
+
+#include <linux/clk-provider.h>
+#include <linux/err.h>
+#include <linux/iopoll.h>
+#include <linux/slab.h>
+#include <linux/bitfield.h>
+
+#include "clk.h"
+
+/* PLL CFGs */
+#define PLL_CFG0		0x0
+#define PLL_CFG1		0x4
+#define PLL_CFG2		0x8
+
+#define PLL_DIVF1_MASK		GENMASK(18, 13)
+#define PLL_DIVF2_MASK		GENMASK(12, 7)
+#define PLL_DIVR1_MASK		GENMASK(27, 25)
+#define PLL_DIVR2_MASK		GENMASK(24, 19)
+#define PLL_REF_MASK		GENMASK(2, 0)
+
+#define PLL_LOCK_MASK		BIT(31)
+#define PLL_PD_MASK		BIT(7)
+
+#define OSC_25M			25000000
+#define OSC_27M			27000000
+
+#define PLL_SCCG_LOCK_TIMEOUT	70
+
+struct clk_sccg_pll {
+	struct clk_hw	hw;
+	void __iomem	*base;
+};
+
+#define to_clk_sccg_pll(_hw) container_of(_hw, struct clk_sccg_pll, hw)
+
+static int clk_pll_wait_lock(struct clk_sccg_pll *pll)
+{
+	u32 val;
+
+	return readl_poll_timeout(pll->base, val, val & PLL_LOCK_MASK, 0,
+					PLL_SCCG_LOCK_TIMEOUT);
+}
+
+static int clk_pll1_is_prepared(struct clk_hw *hw)
+{
+	struct clk_sccg_pll *pll = to_clk_sccg_pll(hw);
+	u32 val;
+
+	val = readl_relaxed(pll->base + PLL_CFG0);
+	return (val & PLL_PD_MASK) ? 0 : 1;
+}
+
+static unsigned long clk_pll1_recalc_rate(struct clk_hw *hw,
+					 unsigned long parent_rate)
+{
+	struct clk_sccg_pll *pll = to_clk_sccg_pll(hw);
+	u32 val, divf;
+
+	val = readl_relaxed(pll->base + PLL_CFG2);
+	divf = FIELD_GET(PLL_DIVF1_MASK, val);
+
+	return parent_rate * 2 * (divf + 1);
+}
+
+static long clk_pll1_round_rate(struct clk_hw *hw, unsigned long rate,
+			       unsigned long *prate)
+{
+	unsigned long parent_rate = *prate;
+	u32 div;
+
+	if (!parent_rate)
+		return 0;
+
+	div = rate / (parent_rate * 2);
+
+	return parent_rate * div * 2;
+}
+
+static int clk_pll1_set_rate(struct clk_hw *hw, unsigned long rate,
+			    unsigned long parent_rate)
+{
+	struct clk_sccg_pll *pll = to_clk_sccg_pll(hw);
+	u32 val;
+	u32 divf;
+
+	if (!parent_rate)
+		return -EINVAL;
+
+	divf = rate / (parent_rate * 2);
+
+	val = readl_relaxed(pll->base + PLL_CFG2);
+	val &= ~PLL_DIVF1_MASK;
+	val |= FIELD_PREP(PLL_DIVF1_MASK, divf - 1);
+	writel_relaxed(val, pll->base + PLL_CFG2);
+
+	return clk_pll_wait_lock(pll);
+}
+
+static int clk_pll1_prepare(struct clk_hw *hw)
+{
+	struct clk_sccg_pll *pll = to_clk_sccg_pll(hw);
+	u32 val;
+
+	val = readl_relaxed(pll->base + PLL_CFG0);
+	val &= ~PLL_PD_MASK;
+	writel_relaxed(val, pll->base + PLL_CFG0);
+
+	return clk_pll_wait_lock(pll);
+}
+
+static void clk_pll1_unprepare(struct clk_hw *hw)
+{
+	struct clk_sccg_pll *pll = to_clk_sccg_pll(hw);
+	u32 val;
+
+	val = readl_relaxed(pll->base + PLL_CFG0);
+	val |= PLL_PD_MASK;
+	writel_relaxed(val, pll->base + PLL_CFG0);
+
+}
+
+static unsigned long clk_pll2_recalc_rate(struct clk_hw *hw,
+					 unsigned long parent_rate)
+{
+	struct clk_sccg_pll *pll = to_clk_sccg_pll(hw);
+	u32 val, ref, divr1, divf1, divr2, divf2;
+	u64 temp64;
+
+	val = readl_relaxed(pll->base + PLL_CFG0);
+	switch (FIELD_GET(PLL_REF_MASK, val)) {
+	case 0:
+		ref = OSC_25M;
+		break;
+	case 1:
+		ref = OSC_27M;
+		break;
+	default:
+		ref = OSC_25M;
+		break;
+	}
+
+	val = readl_relaxed(pll->base + PLL_CFG2);
+	divr1 = FIELD_GET(PLL_DIVR1_MASK, val);
+	divr2 = FIELD_GET(PLL_DIVR2_MASK, val);
+	divf1 = FIELD_GET(PLL_DIVF1_MASK, val);
+	divf2 = FIELD_GET(PLL_DIVF2_MASK, val);
+
+	temp64 = ref * 2;
+	temp64 *= (divf1 + 1) * (divf2 + 1);
+
+	do_div(temp64, (divr1 + 1) * (divr2 + 1));
+
+	return temp64;
+}
+
+static long clk_pll2_round_rate(struct clk_hw *hw, unsigned long rate,
+			       unsigned long *prate)
+{
+	u32 div;
+	unsigned long parent_rate = *prate;
+
+	if (!parent_rate)
+		return 0;
+
+	div = rate / parent_rate;
+
+	return parent_rate * div;
+}
+
+static int clk_pll2_set_rate(struct clk_hw *hw, unsigned long rate,
+			    unsigned long parent_rate)
+{
+	u32 val;
+	u32 divf;
+	struct clk_sccg_pll *pll = to_clk_sccg_pll(hw);
+
+	if (!parent_rate)
+		return -EINVAL;
+
+	divf = rate / parent_rate;
+
+	val = readl_relaxed(pll->base + PLL_CFG2);
+	val &= ~PLL_DIVF2_MASK;
+	val |= FIELD_PREP(PLL_DIVF2_MASK, divf - 1);
+	writel_relaxed(val, pll->base + PLL_CFG2);
+
+	return clk_pll_wait_lock(pll);
+}
+
+static const struct clk_ops clk_sccg_pll1_ops = {
+	.is_prepared	= clk_pll1_is_prepared,
+	.recalc_rate	= clk_pll1_recalc_rate,
+	.round_rate	= clk_pll1_round_rate,
+	.set_rate	= clk_pll1_set_rate,
+};
+
+static const struct clk_ops clk_sccg_pll2_ops = {
+	.prepare	= clk_pll1_prepare,
+	.unprepare	= clk_pll1_unprepare,
+	.recalc_rate	= clk_pll2_recalc_rate,
+	.round_rate	= clk_pll2_round_rate,
+	.set_rate	= clk_pll2_set_rate,
+};
+
+struct clk *imx_clk_sccg_pll(const char *name,
+				const char *parent_name,
+				void __iomem *base,
+				enum imx_sccg_pll_type pll_type)
+{
+	struct clk_sccg_pll *pll;
+	struct clk_init_data init;
+	struct clk_hw *hw;
+	int ret;
+
+	switch (pll_type) {
+	case SCCG_PLL1:
+		init.ops = &clk_sccg_pll1_ops;
+		break;
+	case SCCG_PLL2:
+		init.ops = &clk_sccg_pll2_ops;
+		break;
+	default:
+		return ERR_PTR(-EINVAL);
+	}
+
+	pll = kzalloc(sizeof(*pll), GFP_KERNEL);
+	if (!pll)
+		return ERR_PTR(-ENOMEM);
+
+	init.name = name;
+	init.flags = 0;
+	init.parent_names = &parent_name;
+	init.num_parents = 1;
+
+	pll->base = base;
+	pll->hw.init = &init;
+
+	hw = &pll->hw;
+
+	ret = clk_hw_register(NULL, hw);
+	if (ret) {
+		kfree(pll);
+		return ERR_PTR(ret);
+	}
+
+	return hw->clk;
+}

drivers/clk/imx/clk-scu.c

+// SPDX-License-Identifier: GPL-2.0+
+/*
+ * Copyright 2018 NXP
+ *   Dong Aisheng <aisheng.dong@nxp.com>
+ */
+
+#include <linux/clk-provider.h>
+#include <linux/err.h>
+#include <linux/slab.h>
+
+#include "clk-scu.h"
+
+static struct imx_sc_ipc *ccm_ipc_handle;
+
+/*
+ * struct clk_scu - Description of one SCU clock
+ * @hw: the common clk_hw
+ * @rsrc_id: resource ID of this SCU clock
+ * @clk_type: type of this clock resource
+ */
+struct clk_scu {
+	struct clk_hw hw;
+	u16 rsrc_id;
+	u8 clk_type;
+};
+
+/*
+ * struct imx_sc_msg_req_set_clock_rate - clock set rate protocol
+ * @hdr: SCU protocol header
+ * @rate: rate to set
+ * @resource: clock resource to set rate
+ * @clk: clk type of this resource
+ *
+ * This structure describes the SCU protocol of clock rate set
+ */
+struct imx_sc_msg_req_set_clock_rate {
+	struct imx_sc_rpc_msg hdr;
+	__le32 rate;
+	__le16 resource;
+	u8 clk;
+} __packed;
+
+struct req_get_clock_rate {
+	__le16 resource;
+	u8 clk;
+} __packed;
+
+struct resp_get_clock_rate {
+	__le32 rate;
+};
+
+/*
+ * struct imx_sc_msg_get_clock_rate - clock get rate protocol
+ * @hdr: SCU protocol header
+ * @req: get rate request protocol
+ * @resp: get rate response protocol
+ *
+ * This structure describes the SCU protocol of clock rate get
+ */
+struct imx_sc_msg_get_clock_rate {
+	struct imx_sc_rpc_msg hdr;
+	union {
+		struct req_get_clock_rate req;
+		struct resp_get_clock_rate resp;
+	} data;
+};
+
+/*
+ * struct imx_sc_msg_req_clock_enable - clock gate protocol
+ * @hdr: SCU protocol header
+ * @resource: clock resource to gate
+ * @clk: clk type of this resource
+ * @enable: whether gate off the clock
+ * @autog: HW auto gate enable
+ *
+ * This structure describes the SCU protocol of clock gate
+ */
+struct imx_sc_msg_req_clock_enable {
+	struct imx_sc_rpc_msg hdr;
+	__le16 resource;
+	u8 clk;
+	u8 enable;
+	u8 autog;
+} __packed;
+
+static inline struct clk_scu *to_clk_scu(struct clk_hw *hw)
+{
+	return container_of(hw, struct clk_scu, hw);
+}
+
+int imx_clk_scu_init(void)
+{
+	return imx_scu_get_handle(&ccm_ipc_handle);
+}
+
+/*
+ * clk_scu_recalc_rate - Get clock rate for a SCU clock
+ * @hw: clock to get rate for
+ * @parent_rate: parent rate provided by common clock framework, not used
+ *
+ * Gets the current clock rate of a SCU clock. Returns the current
+ * clock rate, or zero in failure.
+ */
+static unsigned long clk_scu_recalc_rate(struct clk_hw *hw,
+					 unsigned long parent_rate)
+{
+	struct clk_scu *clk = to_clk_scu(hw);
+	struct imx_sc_msg_get_clock_rate msg;
+	struct imx_sc_rpc_msg *hdr = &msg.hdr;
+	int ret;
+
+	hdr->ver = IMX_SC_RPC_VERSION;
+	hdr->svc = IMX_SC_RPC_SVC_PM;
+	hdr->func = IMX_SC_PM_FUNC_GET_CLOCK_RATE;
+	hdr->size = 2;
+
+	msg.data.req.resource = cpu_to_le16(clk->rsrc_id);
+	msg.data.req.clk = clk->clk_type;
+
+	ret = imx_scu_call_rpc(ccm_ipc_handle, &msg, true);
+	if (ret) {
+		pr_err("%s: failed to get clock rate %d\n",
+		       clk_hw_get_name(hw), ret);
+		return 0;
+	}
+
+	return le32_to_cpu(msg.data.resp.rate);
+}
+
+/*
+ * clk_scu_round_rate - Round clock rate for a SCU clock
+ * @hw: clock to round rate for
+ * @rate: rate to round
+ * @parent_rate: parent rate provided by common clock framework, not used
+ *
+ * Returns the current clock rate, or zero in failure.
+ */
+static long clk_scu_round_rate(struct clk_hw *hw, unsigned long rate,
+			       unsigned long *parent_rate)
+{
+	/*
+	 * Assume we support all the requested rate and let the SCU firmware
+	 * to handle the left work
+	 */
+	return rate;
+}
+
+/*
+ * clk_scu_set_rate - Set rate for a SCU clock
+ * @hw: clock to change rate for
+ * @rate: target rate for the clock
+ * @parent_rate: rate of the clock parent, not used for SCU clocks
+ *
+ * Sets a clock frequency for a SCU clock. Returns the SCU
+ * protocol status.
+ */
+static int clk_scu_set_rate(struct clk_hw *hw, unsigned long rate,
+			    unsigned long parent_rate)
+{
+	struct clk_scu *clk = to_clk_scu(hw);
+	struct imx_sc_msg_req_set_clock_rate msg;
+	struct imx_sc_rpc_msg *hdr = &msg.hdr;
+
+	hdr->ver = IMX_SC_RPC_VERSION;
+	hdr->svc = IMX_SC_RPC_SVC_PM;
+	hdr->func = IMX_SC_PM_FUNC_SET_CLOCK_RATE;
+	hdr->size = 3;
+
+	msg.rate = cpu_to_le32(rate);
+	msg.resource = cpu_to_le16(clk->rsrc_id);
+	msg.clk = clk->clk_type;
+
+	return imx_scu_call_rpc(ccm_ipc_handle, &msg, true);
+}
+
+static int sc_pm_clock_enable(struct imx_sc_ipc *ipc, u16 resource,
+			      u8 clk, bool enable, bool autog)
+{
+	struct imx_sc_msg_req_clock_enable msg;
+	struct imx_sc_rpc_msg *hdr = &msg.hdr;
+
+	hdr->ver = IMX_SC_RPC_VERSION;
+	hdr->svc = IMX_SC_RPC_SVC_PM;
+	hdr->func = IMX_SC_PM_FUNC_CLOCK_ENABLE;
+	hdr->size = 3;
+
+	msg.resource = cpu_to_le16(resource);
+	msg.clk = clk;
+	msg.enable = enable;
+	msg.autog = autog;
+
+	return imx_scu_call_rpc(ccm_ipc_handle, &msg, true);
+}
+
+/*
+ * clk_scu_prepare - Enable a SCU clock
+ * @hw: clock to enable
+ *
+ * Enable the clock at the DSC slice level
+ */
+static int clk_scu_prepare(struct clk_hw *hw)
+{
+	struct clk_scu *clk = to_clk_scu(hw);
+
+	return sc_pm_clock_enable(ccm_ipc_handle, clk->rsrc_id,
+				  clk->clk_type, true, false);
+}
+
+/*
+ * clk_scu_unprepare - Disable a SCU clock
+ * @hw: clock to enable
+ *
+ * Disable the clock at the DSC slice level
+ */
+static void clk_scu_unprepare(struct clk_hw *hw)
+{
+	struct clk_scu *clk = to_clk_scu(hw);
+	int ret;
+
+	ret = sc_pm_clock_enable(ccm_ipc_handle, clk->rsrc_id,
+				 clk->clk_type, false, false);
+	if (ret)
+		pr_warn("%s: clk unprepare failed %d\n", clk_hw_get_name(hw),
+			ret);
+}
+
+static const struct clk_ops clk_scu_ops = {
+	.recalc_rate = clk_scu_recalc_rate,
+	.round_rate = clk_scu_round_rate,
+	.set_rate = clk_scu_set_rate,
+	.prepare = clk_scu_prepare,
+	.unprepare = clk_scu_unprepare,
+};
+
+struct clk_hw *imx_clk_scu(const char *name, u32 rsrc_id, u8 clk_type)
+{
+	struct clk_init_data init;
+	struct clk_scu *clk;
+	struct clk_hw *hw;
+	int ret;
+
+	clk = kzalloc(sizeof(*clk), GFP_KERNEL);
+	if (!clk)
+		return ERR_PTR(-ENOMEM);
+
+	clk->rsrc_id = rsrc_id;
+	clk->clk_type = clk_type;
+
+	init.name = name;
+	init.ops = &clk_scu_ops;
+	init.num_parents = 0;
+	/*
+	 * Note on MX8, the clocks are tightly coupled with power domain
+	 * that once the power domain is off, the clock status may be
+	 * lost. So we make it NOCACHE to let user to retrieve the real
+	 * clock status from HW instead of using the possible invalid
+	 * cached rate.
+	 */
+	init.flags = CLK_GET_RATE_NOCACHE;
+	clk->hw.init = &init;
+
+	hw = &clk->hw;
+	ret = clk_hw_register(NULL, hw);
+	if (ret) {
+		kfree(clk);
+		hw = ERR_PTR(ret);
+	}
+
+	return hw;
+}

drivers/clk/imx/clk-scu.h

+/* SPDX-License-Identifier: GPL-2.0+ */
+/*
+ * Copyright 2018 NXP
+ *   Dong Aisheng <aisheng.dong@nxp.com>
+ */
+
+#ifndef __IMX_CLK_SCU_H
+#define __IMX_CLK_SCU_H
+
+#include <linux/firmware/imx/sci.h>
+
+int imx_clk_scu_init(void);
+struct clk_hw *imx_clk_scu(const char *name, u32 rsrc_id, u8 clk_type);
+
+struct clk_hw *imx_clk_lpcg_scu(const char *name, const char *parent_name,
+				unsigned long flags, void __iomem *reg,
+				u8 bit_idx, bool hw_gate);
+#endif

drivers/clk/imx/clk.c

@@ -18,6 +18,16 @@ void __init imx_check_clocks(struct clk *clks[], unsigned int count)
 			       i, PTR_ERR(clks[i]));
 }
 
+void imx_check_clk_hws(struct clk_hw *clks[], unsigned int count)
+{
+	unsigned int i;
+
+	for (i = 0; i < count; i++)
+		if (IS_ERR(clks[i]))
+			pr_err("i.MX clk %u: register failed with %ld\n",
+			       i, PTR_ERR(clks[i]));
+}
+
 static struct clk * __init imx_obtain_fixed_clock_from_dt(const char *name)
 {
 	struct of_phandle_args phandle;
@@ -49,6 +59,18 @@ struct clk * __init imx_obtain_fixed_clock(
 	return clk;
 }
 
+struct clk_hw * __init imx_obtain_fixed_clk_hw(struct device_node *np,
+					       const char *name)
+{
+	struct clk *clk;
+
+	clk = of_clk_get_by_name(np, name);
+	if (IS_ERR(clk))
+		return ERR_PTR(-ENOENT);
+
+	return __clk_get_hw(clk);
+}
+
 /*
  * This fixups the register CCM_CSCMR1 write value.
  * The write/read/divider values of the aclk_podf field

include/dt-bindings/clock/imx6qdl-clock.h

@@ -274,6 +274,8 @@
 #define IMX6QDL_CLK_EPIT1			261
 #define IMX6QDL_CLK_EPIT2			262
 #define IMX6QDL_CLK_MMDC_P0_IPG			263
-#define IMX6QDL_CLK_END				264
+#define IMX6QDL_CLK_DCIC1			264
+#define IMX6QDL_CLK_DCIC2			265
+#define IMX6QDL_CLK_END				266
 
 #endif /* __DT_BINDINGS_CLOCK_IMX6QDL_H */

include/dt-bindings/clock/imx7ulp-clock.h

+/* SPDX-License-Identifier: GPL-2.0+ */
+/*
+ * Copyright (C) 2016 Freescale Semiconductor, Inc.
+ * Copyright 2017~2018 NXP
+ *
+ */
+
+#ifndef __DT_BINDINGS_CLOCK_IMX7ULP_H
+#define __DT_BINDINGS_CLOCK_IMX7ULP_H
+
+/* SCG1 */
+
+#define IMX7ULP_CLK_DUMMY		0
+#define IMX7ULP_CLK_ROSC		1
+#define IMX7ULP_CLK_SOSC		2
+#define IMX7ULP_CLK_FIRC		3
+#define IMX7ULP_CLK_SPLL_PRE_SEL	4
+#define IMX7ULP_CLK_SPLL_PRE_DIV	5
+#define IMX7ULP_CLK_SPLL		6
+#define IMX7ULP_CLK_SPLL_POST_DIV1	7
+#define IMX7ULP_CLK_SPLL_POST_DIV2	8
+#define IMX7ULP_CLK_SPLL_PFD0		9
+#define IMX7ULP_CLK_SPLL_PFD1		10
+#define IMX7ULP_CLK_SPLL_PFD2		11
+#define IMX7ULP_CLK_SPLL_PFD3		12
+#define IMX7ULP_CLK_SPLL_PFD_SEL	13
+#define IMX7ULP_CLK_SPLL_SEL		14
+#define IMX7ULP_CLK_APLL_PRE_SEL	15
+#define IMX7ULP_CLK_APLL_PRE_DIV	16
+#define IMX7ULP_CLK_APLL		17
+#define IMX7ULP_CLK_APLL_POST_DIV1	18
+#define IMX7ULP_CLK_APLL_POST_DIV2	19
+#define IMX7ULP_CLK_APLL_PFD0		20
+#define IMX7ULP_CLK_APLL_PFD1		21
+#define IMX7ULP_CLK_APLL_PFD2		22
+#define IMX7ULP_CLK_APLL_PFD3		23
+#define IMX7ULP_CLK_APLL_PFD_SEL	24
+#define IMX7ULP_CLK_APLL_SEL		25
+#define IMX7ULP_CLK_UPLL		26
+#define IMX7ULP_CLK_SYS_SEL		27
+#define IMX7ULP_CLK_CORE_DIV		28
+#define IMX7ULP_CLK_BUS_DIV		29
+#define IMX7ULP_CLK_PLAT_DIV		30
+#define IMX7ULP_CLK_DDR_SEL		31
+#define IMX7ULP_CLK_DDR_DIV		32
+#define IMX7ULP_CLK_NIC_SEL		33
+#define IMX7ULP_CLK_NIC0_DIV		34
+#define IMX7ULP_CLK_GPU_DIV		35
+#define IMX7ULP_CLK_NIC1_DIV		36
+#define IMX7ULP_CLK_NIC1_BUS_DIV	37
+#define IMX7ULP_CLK_NIC1_EXT_DIV	38
+#define IMX7ULP_CLK_MIPI_PLL		39
+#define IMX7ULP_CLK_SIRC		40
+#define IMX7ULP_CLK_SOSC_BUS_CLK	41
+#define IMX7ULP_CLK_FIRC_BUS_CLK	42
+#define IMX7ULP_CLK_SPLL_BUS_CLK	43
+
+#define IMX7ULP_CLK_SCG1_END		44
+
+/* PCC2 */
+#define IMX7ULP_CLK_DMA1		0
+#define IMX7ULP_CLK_RGPIO2P1		1
+#define IMX7ULP_CLK_FLEXBUS		2
+#define IMX7ULP_CLK_SEMA42_1		3
+#define IMX7ULP_CLK_DMA_MUX1		4
+#define IMX7ULP_CLK_SNVS		5
+#define IMX7ULP_CLK_CAAM		6
+#define IMX7ULP_CLK_LPTPM4		7
+#define IMX7ULP_CLK_LPTPM5		8
+#define IMX7ULP_CLK_LPIT1		9
+#define IMX7ULP_CLK_LPSPI2		10
+#define IMX7ULP_CLK_LPSPI3		11
+#define IMX7ULP_CLK_LPI2C4		12
+#define IMX7ULP_CLK_LPI2C5		13
+#define IMX7ULP_CLK_LPUART4		14
+#define IMX7ULP_CLK_LPUART5		15
+#define IMX7ULP_CLK_FLEXIO1		16
+#define IMX7ULP_CLK_USB0		17
+#define IMX7ULP_CLK_USB1		18
+#define IMX7ULP_CLK_USB_PHY		19
+#define IMX7ULP_CLK_USB_PL301		20
+#define IMX7ULP_CLK_USDHC0		21
+#define IMX7ULP_CLK_USDHC1		22
+#define IMX7ULP_CLK_WDG1		23
+#define IMX7ULP_CLK_WDG2		24
+
+#define IMX7ULP_CLK_PCC2_END		25
+
+/* PCC3 */
+#define IMX7ULP_CLK_LPTPM6		0
+#define IMX7ULP_CLK_LPTPM7		1
+#define IMX7ULP_CLK_LPI2C6		2
+#define IMX7ULP_CLK_LPI2C7		3
+#define IMX7ULP_CLK_LPUART6		4
+#define IMX7ULP_CLK_LPUART7		5
+#define IMX7ULP_CLK_VIU			6
+#define IMX7ULP_CLK_DSI			7
+#define IMX7ULP_CLK_LCDIF		8
+#define IMX7ULP_CLK_MMDC		9
+#define IMX7ULP_CLK_PCTLC		10
+#define IMX7ULP_CLK_PCTLD		11
+#define IMX7ULP_CLK_PCTLE		12
+#define IMX7ULP_CLK_PCTLF		13
+#define IMX7ULP_CLK_GPU3D		14
+#define IMX7ULP_CLK_GPU2D		15
+
+#define IMX7ULP_CLK_PCC3_END		16
+
+#endif /* __DT_BINDINGS_CLOCK_IMX7ULP_H */

include/linux/clk-provider.h

@@ -596,6 +596,12 @@ void clk_hw_unregister_fixed_factor(struct clk_hw *hw);
  * @lock:	register lock
  *
  * Clock with adjustable fractional divider affecting its output frequency.
+ *
+ * Flags:
+ * CLK_FRAC_DIVIDER_ZERO_BASED - by default the numerator and denominator
+ *	is the value read from the register. If CLK_FRAC_DIVIDER_ZERO_BASED
+ *	is set then the numerator and denominator are both the value read
+ *	plus one.
  */
 struct clk_fractional_divider {
 	struct clk_hw	hw;
@@ -615,6 +621,8 @@ struct clk_fractional_divider {
 
 #define to_clk_fd(_hw) container_of(_hw, struct clk_fractional_divider, hw)
 
+#define CLK_FRAC_DIVIDER_ZERO_BASED		BIT(0)
+
 extern const struct clk_ops clk_fractional_divider_ops;
 struct clk *clk_register_fractional_divider(struct device *dev,
 		const char *name, const char *parent_name, unsigned long flags,

include/linux/firmware/imx/sci.h

@@ -14,4 +14,5 @@
 #include <linux/firmware/imx/types.h>
 
 #include <linux/firmware/imx/svc/misc.h>
+#include <linux/firmware/imx/svc/pm.h>
 #endif /* _SC_SCI_H */

include/linux/firmware/imx/svc/pm.h

+/* SPDX-License-Identifier: GPL-2.0+ */
+/*
+ * Copyright (C) 2016 Freescale Semiconductor, Inc.
+ * Copyright 2017-2018 NXP
+ *
+ * Header file containing the public API for the System Controller (SC)
+ * Power Management (PM) function. This includes functions for power state
+ * control, clock control, reset control, and wake-up event control.
+ *
+ * PM_SVC (SVC) Power Management Service
+ *
+ * Module for the Power Management (PM) service.
+ */
+
+#ifndef _SC_PM_API_H
+#define _SC_PM_API_H
+
+#include <linux/firmware/imx/sci.h>
+
+/*
+ * This type is used to indicate RPC PM function calls.
+ */
+enum imx_sc_pm_func {
+	IMX_SC_PM_FUNC_UNKNOWN = 0,
+	IMX_SC_PM_FUNC_SET_SYS_POWER_MODE = 19,
+	IMX_SC_PM_FUNC_SET_PARTITION_POWER_MODE = 1,
+	IMX_SC_PM_FUNC_GET_SYS_POWER_MODE = 2,
+	IMX_SC_PM_FUNC_SET_RESOURCE_POWER_MODE = 3,
+	IMX_SC_PM_FUNC_GET_RESOURCE_POWER_MODE = 4,
+	IMX_SC_PM_FUNC_REQ_LOW_POWER_MODE = 16,
+	IMX_SC_PM_FUNC_SET_CPU_RESUME_ADDR = 17,
+	IMX_SC_PM_FUNC_REQ_SYS_IF_POWER_MODE = 18,
+	IMX_SC_PM_FUNC_SET_CLOCK_RATE = 5,
+	IMX_SC_PM_FUNC_GET_CLOCK_RATE = 6,
+	IMX_SC_PM_FUNC_CLOCK_ENABLE = 7,
+	IMX_SC_PM_FUNC_SET_CLOCK_PARENT = 14,
+	IMX_SC_PM_FUNC_GET_CLOCK_PARENT = 15,
+	IMX_SC_PM_FUNC_RESET = 13,
+	IMX_SC_PM_FUNC_RESET_REASON = 10,
+	IMX_SC_PM_FUNC_BOOT = 8,
+	IMX_SC_PM_FUNC_REBOOT = 9,
+	IMX_SC_PM_FUNC_REBOOT_PARTITION = 12,
+	IMX_SC_PM_FUNC_CPU_START = 11,
+};
+
+/*
+ * Defines for ALL parameters
+ */
+#define IMX_SC_PM_CLK_ALL		UINT8_MAX	/* All clocks */
+
+/*
+ * Defines for SC PM Power Mode
+ */
+#define IMX_SC_PM_PW_MODE_OFF	0	/* Power off */
+#define IMX_SC_PM_PW_MODE_STBY	1	/* Power in standby */
+#define IMX_SC_PM_PW_MODE_LP	2	/* Power in low-power */
+#define IMX_SC_PM_PW_MODE_ON	3	/* Power on */
+
+/*
+ * Defines for SC PM CLK
+ */
+#define IMX_SC_PM_CLK_SLV_BUS	0	/* Slave bus clock */
+#define IMX_SC_PM_CLK_MST_BUS	1	/* Master bus clock */
+#define IMX_SC_PM_CLK_PER	2	/* Peripheral clock */
+#define IMX_SC_PM_CLK_PHY	3	/* Phy clock */
+#define IMX_SC_PM_CLK_MISC	4	/* Misc clock */
+#define IMX_SC_PM_CLK_MISC0	0	/* Misc 0 clock */
+#define IMX_SC_PM_CLK_MISC1	1	/* Misc 1 clock */
+#define IMX_SC_PM_CLK_MISC2	2	/* Misc 2 clock */
+#define IMX_SC_PM_CLK_MISC3	3	/* Misc 3 clock */
+#define IMX_SC_PM_CLK_MISC4	4	/* Misc 4 clock */
+#define IMX_SC_PM_CLK_CPU	2	/* CPU clock */
+#define IMX_SC_PM_CLK_PLL	4	/* PLL */
+#define IMX_SC_PM_CLK_BYPASS	4	/* Bypass clock */
+
+/*
+ * Defines for SC PM CLK Parent
+ */
+#define IMX_SC_PM_PARENT_XTAL	0	/* Parent is XTAL. */
+#define IMX_SC_PM_PARENT_PLL0	1	/* Parent is PLL0 */
+#define IMX_SC_PM_PARENT_PLL1	2	/* Parent is PLL1 or PLL0/2 */
+#define IMX_SC_PM_PARENT_PLL2	3	/* Parent in PLL2 or PLL0/4 */
+#define IMX_SC_PM_PARENT_BYPS	4	/* Parent is a bypass clock. */
+
+#endif /* _SC_PM_API_H */