Merge branches 'clk-stm32f4', 'clk-tegra', 'clk-at91', 'clk-sifive-fu540' and 'clk-spdx' into clk-next

- Support for STM32F769
- Rework AT91 sckc DT bindings
- Fix slow RC oscillator issue on sama5d3
- AT91 sam9x60 PMC support
- SiFive FU540 PRCI and PLL support

* clk-stm32f4:
clk: stm32mp1: Add ddrperfm clock
clk: stm32: Introduce clocks of STM32F769 board

* clk-tegra:
clk: tegra: divider: Mark Memory Controller clock as read-only
clk: tegra: emc: Replace BUG() with WARN_ONCE()
clk: tegra: emc: Fix EMC max-rate clamping
clk: tegra: emc: Support multiple RAM codes
clk: tegra: emc: Don't enable EMC clock manually
clk: tegra124: Remove lock-enable bit from PLLM
clk: tegra: Fix PLLM programming on Tegra124+ when PMC overrides divider
clk: tegra: Don't enable already enabled PLLs

* clk-at91:
clk: at91: Mark struct clk_range as const
clk: at91: add sam9x60 pmc driver
dt-bindings: clk: at91: add bindings for SAM9X60 pmc
clk: at91: add sam9x60 PLL driver
clk: at91: master: Add sam9x60 support
clk: at91: usb: Add sam9x60 support
clk: at91: allow configuring generated PCR layout
clk: at91: allow configuring peripheral PCR layout
clk: at91: sckc: handle different RC startup time
clk: at91: modernize sckc binding
dt-bindings: clock: at91: new sckc bindings

* clk-sifive-fu540:
clk: sifive: add a driver for the SiFive FU540 PRCI IP block
clk: analogbits: add Wide-Range PLL library
dt-bindings: clk: add documentation for the SiFive PRCI driver

* clk-spdx:
clk: sunxi-ng: Use the correct style for SPDX License Identifier
clk: sprd: Use the correct style for SPDX License Identifier
clk: renesas: Use the correct style for SPDX License Identifier
clk: qcom: Use the correct style for SPDX License Identifier
clk: davinci: Use the correct style for SPDX License Identifier
clk: actions: Use the correct style for SPDX License Identifier

Documentation/devicetree/bindings/clock/at91-clock.txt

···
 
 Required properties:
 - compatible : shall be one of the following:
-	"atmel,at91sam9x5-sckc" or
+	"atmel,at91sam9x5-sckc",
+	"atmel,sama5d3-sckc" or
 	"atmel,sama5d4-sckc":
 		at91 SCKC (Slow Clock Controller)
-		This node contains the slow clock definitions.
+- #clock-cells : shall be 0.
+- clocks : shall be the input parent clock phandle for the clock.
 
-	"atmel,at91sam9x5-clk-slow-osc":
-		at91 slow oscillator
-
-	"atmel,at91sam9x5-clk-slow-rc-osc":
-		at91 internal slow RC oscillator
-- reg : defines the IO memory reserved for the SCKC.
-- #size-cells : shall be 0 (reg is used to encode clk id).
-- #address-cells : shall be 1 (reg is used to encode clk id).
-
+Optional properties:
+- atmel,osc-bypass : boolean property. Set this when a clock signal is directly
+  provided on XIN.
 
 For example:
-	sckc: sckc@fffffe50 {
-		compatible = "atmel,sama5d3-pmc";
-		reg = <0xfffffe50 0x4>
-		#size-cells = <0>;
-		#address-cells = <1>;
-
-		/* put at91 slow clocks here */
+	sckc@fffffe50 {
+		compatible = "atmel,at91sam9x5-sckc";
+		reg = <0xfffffe50 0x4>;
+		clocks = <&slow_xtal>;
+		#clock-cells = <0>;
 	};
 
 Power Management Controller (PMC):
 
 Required properties:
-- compatible : shall be "atmel,<chip>-pmc", "syscon":
+- compatible : shall be "atmel,<chip>-pmc", "syscon" or
+	"microchip,sam9x60-pmc"
 	<chip> can be: at91rm9200, at91sam9260, at91sam9261,
 	at91sam9263, at91sam9g45, at91sam9n12, at91sam9rl, at91sam9g15,
 	at91sam9g25, at91sam9g35, at91sam9x25, at91sam9x35, at91sam9x5,

Documentation/devicetree/bindings/clock/sifive/fu540-prci.txt

···
+SiFive FU540 PRCI bindings
+
+On the FU540 family of SoCs, most system-wide clock and reset integration
+is via the PRCI IP block.
+
+Required properties:
+- compatible: Should be "sifive,<chip>-prci".  Only one value is
+	supported: "sifive,fu540-c000-prci"
+- reg: Should describe the PRCI's register target physical address region
+- clocks: Should point to the hfclk device tree node and the rtcclk
+          device tree node.  The RTC clock here is not a time-of-day clock,
+	  but is instead a high-stability clock source for system timers
+	  and cycle counters.
+- #clock-cells: Should be <1>
+
+The clock consumer should specify the desired clock via the clock ID
+macros defined in include/dt-bindings/clock/sifive-fu540-prci.h.
+These macros begin with PRCI_CLK_.
+
+The hfclk and rtcclk nodes are required, and represent physical
+crystals or resonators located on the PCB.  These nodes should be present
+underneath /, rather than /soc.
+
+Examples:
+
+/* under /, in PCB-specific DT data */
+hfclk: hfclk {
+	#clock-cells = <0>;
+	compatible = "fixed-clock";
+	clock-frequency = <33333333>;
+	clock-output-names = "hfclk";
+};
+rtcclk: rtcclk {
+	#clock-cells = <0>;
+	compatible = "fixed-clock";
+	clock-frequency = <1000000>;
+	clock-output-names = "rtcclk";
+};
+
+/* under /soc, in SoC-specific DT data */
+prci: clock-controller@10000000 {
+	compatible = "sifive,fu540-c000-prci";
+	reg = <0x0 0x10000000 0x0 0x1000>;
+	clocks = <&hfclk>, <&rtcclk>;
+	#clock-cells = <1>;
+};

Documentation/devicetree/bindings/clock/st,stm32-rcc.txt

···
   "st,stm32f42xx-rcc"
   "st,stm32f469-rcc"
   "st,stm32f746-rcc"
+  "st,stm32f769-rcc"
+
 - reg: should be register base and length as documented in the
   datasheet
 - #reset-cells: 1, see below
···
 	28	CLK_I2C3
 	29	CLK_I2C4
 	30	CLK_LPTIMER	(LPTimer1 clock)
+	31	CLK_PLL_SRC
+	32	CLK_DFSDM1
+	33	CLK_ADFSDM1
+	34	CLK_F769_DSI
 )
 
 Example:

MAINTAINERS

···
 X:	drivers/iio/*/adjd*
 F:	drivers/staging/iio/*/ad*
 
+ANALOGBITS PLL LIBRARIES
+M:	Paul Walmsley <[e-mail]>
+S:	Supported
+F:	drivers/clk/analogbits/*
+F:	include/linux/clk/analogbits*
+
 ANDES ARCHITECTURE
 M:	Greentime Hu <[e-mail]>
 M:	Vincent Chen <[e-mail]>

drivers/clk/Kconfig

···
+# SPDX-License-Identifier: GPL-2.0
 
 config CLKDEV_LOOKUP
 	bool
···
 	  Support for Memory Mapped IO Fixed clocks
 
 source "drivers/clk/actions/Kconfig"
+source "drivers/clk/analogbits/Kconfig"
 source "drivers/clk/bcm/Kconfig"
 source "drivers/clk/hisilicon/Kconfig"
 source "drivers/clk/imgtec/Kconfig"
···
 source "drivers/clk/qcom/Kconfig"
 source "drivers/clk/renesas/Kconfig"
 source "drivers/clk/samsung/Kconfig"
+source "drivers/clk/sifive/Kconfig"
 source "drivers/clk/sprd/Kconfig"
 source "drivers/clk/sunxi/Kconfig"
 source "drivers/clk/sunxi-ng/Kconfig"

drivers/clk/Makefile

···
 
 # please keep this section sorted lexicographically by directory path name
 obj-y					+= actions/
+obj-y					+= analogbits/
 obj-$(CONFIG_COMMON_CLK_AT91)		+= at91/
 obj-$(CONFIG_ARCH_ARTPEC)		+= axis/
 obj-$(CONFIG_ARC_PLAT_AXS10X)		+= axs10x/
···
 obj-y					+= renesas/
 obj-$(CONFIG_ARCH_ROCKCHIP)		+= rockchip/
 obj-$(CONFIG_COMMON_CLK_SAMSUNG)	+= samsung/
+obj-$(CONFIG_CLK_SIFIVE)		+= sifive/
 obj-$(CONFIG_ARCH_SIRF)			+= sirf/
 obj-$(CONFIG_ARCH_SOCFPGA)		+= socfpga/
 obj-$(CONFIG_PLAT_SPEAR)		+= spear/

drivers/clk/actions/owl-common.h

···
-// SPDX-License-Identifier: GPL-2.0+
+/* SPDX-License-Identifier: GPL-2.0+ */
 //
 // OWL common clock driver
 //

drivers/clk/actions/owl-composite.h

···
-// SPDX-License-Identifier: GPL-2.0+
+/* SPDX-License-Identifier: GPL-2.0+ */
 //
 // OWL composite clock driver
 //

drivers/clk/actions/owl-divider.h

···
-// SPDX-License-Identifier: GPL-2.0+
+/* SPDX-License-Identifier: GPL-2.0+ */
 //
 // OWL divider clock driver
 //

drivers/clk/actions/owl-factor.h

···
-// SPDX-License-Identifier: GPL-2.0+
+/* SPDX-License-Identifier: GPL-2.0+ */
 //
 // OWL factor clock driver
 //

drivers/clk/actions/owl-fixed-factor.h

···
-// SPDX-License-Identifier: GPL-2.0+
+/* SPDX-License-Identifier: GPL-2.0+ */
 //
 // OWL fixed factor clock driver
 //

drivers/clk/actions/owl-gate.h

···
-// SPDX-License-Identifier: GPL-2.0+
+/* SPDX-License-Identifier: GPL-2.0+ */
 //
 // OWL gate clock driver
 //

drivers/clk/actions/owl-mux.h

···
-// SPDX-License-Identifier: GPL-2.0+
+/* SPDX-License-Identifier: GPL-2.0+ */
 //
 // OWL mux clock driver
 //

drivers/clk/actions/owl-pll.h

···
-// SPDX-License-Identifier: GPL-2.0+
+/* SPDX-License-Identifier: GPL-2.0+ */
 //
 // OWL pll clock driver
 //

drivers/clk/actions/owl-reset.h

···
-// SPDX-License-Identifier: GPL-2.0-or-later
+/* SPDX-License-Identifier: GPL-2.0-or-later */
 //
 // Actions Semi Owl SoCs Reset Management Unit driver
 //

drivers/clk/analogbits/Kconfig

···
+config CLK_ANALOGBITS_WRPLL_CLN28HPC
+	bool

drivers/clk/analogbits/Makefile

···
+# SPDX-License-Identifier: GPL-2.0
+
+obj-$(CONFIG_CLK_ANALOGBITS_WRPLL_CLN28HPC)	+= wrpll-cln28hpc.o

drivers/clk/analogbits/wrpll-cln28hpc.c

···
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Copyright (C) 2018-2019 SiFive, Inc.
+ * Wesley Terpstra
+ * Paul Walmsley
+ *
+ * This library supports configuration parsing and reprogramming of
+ * the CLN28HPC variant of the Analog Bits Wide Range PLL.  The
+ * intention is for this library to be reusable for any device that
+ * integrates this PLL; thus the register structure and programming
+ * details are expected to be provided by a separate IP block driver.
+ *
+ * The bulk of this code is primarily useful for clock configurations
+ * that must operate at arbitrary rates, as opposed to clock configurations
+ * that are restricted by software or manufacturer guidance to a small,
+ * pre-determined set of performance points.
+ *
+ * References:
+ * - Analog Bits "Wide Range PLL Datasheet", version 2015.10.01
+ * - SiFive FU540-C000 Manual v1p0, Chapter 7 "Clocking and Reset"
+ *   https://static.dev.sifive.com/FU540-C000-v1.0.pdf
+ */
+
+#include <linux/bug.h>
+#include <linux/err.h>
+#include <linux/log2.h>
+#include <linux/math64.h>
+#include <linux/clk/analogbits-wrpll-cln28hpc.h>
+
+/* MIN_INPUT_FREQ: minimum input clock frequency, in Hz (Fref_min) */
+#define MIN_INPUT_FREQ			7000000
+
+/* MAX_INPUT_FREQ: maximum input clock frequency, in Hz (Fref_max) */
+#define MAX_INPUT_FREQ			600000000
+
+/* MIN_POST_DIVIDE_REF_FREQ: minimum post-divider reference frequency, in Hz */
+#define MIN_POST_DIVR_FREQ		7000000
+
+/* MAX_POST_DIVIDE_REF_FREQ: maximum post-divider reference frequency, in Hz */
+#define MAX_POST_DIVR_FREQ		200000000
+
+/* MIN_VCO_FREQ: minimum VCO frequency, in Hz (Fvco_min) */
+#define MIN_VCO_FREQ			2400000000UL
+
+/* MAX_VCO_FREQ: maximum VCO frequency, in Hz (Fvco_max) */
+#define MAX_VCO_FREQ			4800000000ULL
+
+/* MAX_DIVQ_DIVISOR: maximum output divisor.  Selected by DIVQ = 6 */
+#define MAX_DIVQ_DIVISOR		64
+
+/* MAX_DIVR_DIVISOR: maximum reference divisor.  Selected by DIVR = 63 */
+#define MAX_DIVR_DIVISOR		64
+
+/* MAX_LOCK_US: maximum PLL lock time, in microseconds (tLOCK_max) */
+#define MAX_LOCK_US			70
+
+/*
+ * ROUND_SHIFT: number of bits to shift to avoid precision loss in the rounding
+ *              algorithm
+ */
+#define ROUND_SHIFT			20
+
+/*
+ * Private functions
+ */
+
+/**
+ * __wrpll_calc_filter_range() - determine PLL loop filter bandwidth
+ * @post_divr_freq: input clock rate after the R divider
+ *
+ * Select the value to be presented to the PLL RANGE input signals, based
+ * on the input clock frequency after the post-R-divider @post_divr_freq.
+ * This code follows the recommendations in the PLL datasheet for filter
+ * range selection.
+ *
+ * Return: The RANGE value to be presented to the PLL configuration inputs,
+ *         or a negative return code upon error.
+ */
+static int __wrpll_calc_filter_range(unsigned long post_divr_freq)
+{
+	if (post_divr_freq < MIN_POST_DIVR_FREQ ||
+	    post_divr_freq > MAX_POST_DIVR_FREQ) {
+		WARN(1, "%s: post-divider reference freq out of range: %lu",
+		     __func__, post_divr_freq);
+		return -ERANGE;
+	}
+
+	switch (post_divr_freq) {
+	case 0 ... 10999999:
+		return 1;
+	case 11000000 ... 17999999:
+		return 2;
+	case 18000000 ... 29999999:
+		return 3;
+	case 30000000 ... 49999999:
+		return 4;
+	case 50000000 ... 79999999:
+		return 5;
+	case 80000000 ... 129999999:
+		return 6;
+	}
+
+	return 7;
+}
+
+/**
+ * __wrpll_calc_fbdiv() - return feedback fixed divide value
+ * @c: ptr to a struct wrpll_cfg record to read from
+ *
+ * The internal feedback path includes a fixed by-two divider; the
+ * external feedback path does not.  Return the appropriate divider
+ * value (2 or 1) depending on whether internal or external feedback
+ * is enabled.  This code doesn't test for invalid configurations
+ * (e.g. both or neither of WRPLL_FLAGS_*_FEEDBACK are set); it relies
+ * on the caller to do so.
+ *
+ * Context: Any context.  Caller must protect the memory pointed to by
+ *          @c from simultaneous modification.
+ *
+ * Return: 2 if internal feedback is enabled or 1 if external feedback
+ *         is enabled.
+ */
+static u8 __wrpll_calc_fbdiv(const struct wrpll_cfg *c)
+{
+	return (c->flags & WRPLL_FLAGS_INT_FEEDBACK_MASK) ? 2 : 1;
+}
+
+/**
+ * __wrpll_calc_divq() - determine DIVQ based on target PLL output clock rate
+ * @target_rate: target PLL output clock rate
+ * @vco_rate: pointer to a u64 to store the computed VCO rate into
+ *
+ * Determine a reasonable value for the PLL Q post-divider, based on the
+ * target output rate @target_rate for the PLL.  Along with returning the
+ * computed Q divider value as the return value, this function stores the
+ * desired target VCO rate into the variable pointed to by @vco_rate.
+ *
+ * Context: Any context.  Caller must protect the memory pointed to by
+ *          @vco_rate from simultaneous access or modification.
+ *
+ * Return: a positive integer DIVQ value to be programmed into the hardware
+ *         upon success, or 0 upon error (since 0 is an invalid DIVQ value)
+ */
+static u8 __wrpll_calc_divq(u32 target_rate, u64 *vco_rate)
+{
+	u64 s;
+	u8 divq = 0;
+
+	if (!vco_rate) {
+		WARN_ON(1);
+		goto wcd_out;
+	}
+
+	s = div_u64(MAX_VCO_FREQ, target_rate);
+	if (s <= 1) {
+		divq = 1;
+		*vco_rate = MAX_VCO_FREQ;
+	} else if (s > MAX_DIVQ_DIVISOR) {
+		divq = ilog2(MAX_DIVQ_DIVISOR);
+		*vco_rate = MIN_VCO_FREQ;
+	} else {
+		divq = ilog2(s);
+		*vco_rate = (u64)target_rate << divq;
+	}
+
+wcd_out:
+	return divq;
+}
+
+/**
+ * __wrpll_update_parent_rate() - update PLL data when parent rate changes
+ * @c: ptr to a struct wrpll_cfg record to write PLL data to
+ * @parent_rate: PLL input refclk rate (pre-R-divider)
+ *
+ * Pre-compute some data used by the PLL configuration algorithm when
+ * the PLL's reference clock rate changes.  The intention is to avoid
+ * computation when the parent rate remains constant - expected to be
+ * the common case.
+ *
+ * Returns: 0 upon success or -ERANGE if the reference clock rate is
+ * out of range.
+ */
+static int __wrpll_update_parent_rate(struct wrpll_cfg *c,
+				      unsigned long parent_rate)
+{
+	u8 max_r_for_parent;
+
+	if (parent_rate > MAX_INPUT_FREQ || parent_rate < MIN_POST_DIVR_FREQ)
+		return -ERANGE;
+
+	c->parent_rate = parent_rate;
+	max_r_for_parent = div_u64(parent_rate, MIN_POST_DIVR_FREQ);
+	c->max_r = min_t(u8, MAX_DIVR_DIVISOR, max_r_for_parent);
+
+	c->init_r = DIV_ROUND_UP_ULL(parent_rate, MAX_POST_DIVR_FREQ);
+
+	return 0;
+}
+
+/**
+ * wrpll_configure() - compute PLL configuration for a target rate
+ * @c: ptr to a struct wrpll_cfg record to write into
+ * @target_rate: target PLL output clock rate (post-Q-divider)
+ * @parent_rate: PLL input refclk rate (pre-R-divider)
+ *
+ * Compute the appropriate PLL signal configuration values and store
+ * in PLL context @c.  PLL reprogramming is not glitchless, so the
+ * caller should switch any downstream logic to a different clock
+ * source or clock-gate it before presenting these values to the PLL
+ * configuration signals.
+ *
+ * The caller must pass this function a pre-initialized struct
+ * wrpll_cfg record: either initialized to zero (with the
+ * exception of the .name and .flags fields) or read from the PLL.
+ *
+ * Context: Any context.  Caller must protect the memory pointed to by @c
+ *          from simultaneous access or modification.
+ *
+ * Return: 0 upon success; anything else upon failure.
+ */
+int wrpll_configure_for_rate(struct wrpll_cfg *c, u32 target_rate,
+			     unsigned long parent_rate)
+{
+	unsigned long ratio;
+	u64 target_vco_rate, delta, best_delta, f_pre_div, vco, vco_pre;
+	u32 best_f, f, post_divr_freq;
+	u8 fbdiv, divq, best_r, r;
+	int range;
+
+	if (c->flags == 0) {
+		WARN(1, "%s called with uninitialized PLL config", __func__);
+		return -EINVAL;
+	}
+
+	/* Initialize rounding data if it hasn't been initialized already */
+	if (parent_rate != c->parent_rate) {
+		if (__wrpll_update_parent_rate(c, parent_rate)) {
+			pr_err("%s: PLL input rate is out of range\n",
+			       __func__);
+			return -ERANGE;
+		}
+	}
+
+	c->flags &= ~WRPLL_FLAGS_RESET_MASK;
+
+	/* Put the PLL into bypass if the user requests the parent clock rate */
+	if (target_rate == parent_rate) {
+		c->flags |= WRPLL_FLAGS_BYPASS_MASK;
+		return 0;
+	}
+
+	c->flags &= ~WRPLL_FLAGS_BYPASS_MASK;
+
+	/* Calculate the Q shift and target VCO rate */
+	divq = __wrpll_calc_divq(target_rate, &target_vco_rate);
+	if (!divq)
+		return -1;
+	c->divq = divq;
+
+	/* Precalculate the pre-Q divider target ratio */
+	ratio = div64_u64((target_vco_rate << ROUND_SHIFT), parent_rate);
+
+	fbdiv = __wrpll_calc_fbdiv(c);
+	best_r = 0;
+	best_f = 0;
+	best_delta = MAX_VCO_FREQ;
+
+	/*
+	 * Consider all values for R which land within
+	 * [MIN_POST_DIVR_FREQ, MAX_POST_DIVR_FREQ]; prefer smaller R
+	 */
+	for (r = c->init_r; r <= c->max_r; ++r) {
+		f_pre_div = ratio * r;
+		f = (f_pre_div + (1 << ROUND_SHIFT)) >> ROUND_SHIFT;
+		f >>= (fbdiv - 1);
+
+		post_divr_freq = div_u64(parent_rate, r);
+		vco_pre = fbdiv * post_divr_freq;
+		vco = vco_pre * f;
+
+		/* Ensure rounding didn't take us out of range */
+		if (vco > target_vco_rate) {
+			--f;
+			vco = vco_pre * f;
+		} else if (vco < MIN_VCO_FREQ) {
+			++f;
+			vco = vco_pre * f;
+		}
+
+		delta = abs(target_rate - vco);
+		if (delta < best_delta) {
+			best_delta = delta;
+			best_r = r;
+			best_f = f;
+		}
+	}
+
+	c->divr = best_r - 1;
+	c->divf = best_f - 1;
+
+	post_divr_freq = div_u64(parent_rate, best_r);
+
+	/* Pick the best PLL jitter filter */
+	range = __wrpll_calc_filter_range(post_divr_freq);
+	if (range < 0)
+		return range;
+	c->range = range;
+
+	return 0;
+}
+
+/**
+ * wrpll_calc_output_rate() - calculate the PLL's target output rate
+ * @c: ptr to a struct wrpll_cfg record to read from
+ * @parent_rate: PLL refclk rate
+ *
+ * Given a pointer to the PLL's current input configuration @c and the
+ * PLL's input reference clock rate @parent_rate (before the R
+ * pre-divider), calculate the PLL's output clock rate (after the Q
+ * post-divider).
+ *
+ * Context: Any context.  Caller must protect the memory pointed to by @c
+ *          from simultaneous modification.
+ *
+ * Return: the PLL's output clock rate, in Hz.  The return value from
+ *         this function is intended to be convenient to pass directly
+ *         to the Linux clock framework; thus there is no explicit
+ *         error return value.
+ */
+unsigned long wrpll_calc_output_rate(const struct wrpll_cfg *c,
+				     unsigned long parent_rate)
+{
+	u8 fbdiv;
+	u64 n;
+
+	if (c->flags & WRPLL_FLAGS_EXT_FEEDBACK_MASK) {
+		WARN(1, "external feedback mode not yet supported");
+		return ULONG_MAX;
+	}
+
+	fbdiv = __wrpll_calc_fbdiv(c);
+	n = parent_rate * fbdiv * (c->divf + 1);
+	n = div_u64(n, c->divr + 1);
+	n >>= c->divq;
+
+	return n;
+}
+
+/**
+ * wrpll_calc_max_lock_us() - return the time for the PLL to lock
+ * @c: ptr to a struct wrpll_cfg record to read from
+ *
+ * Return the minimum amount of time (in microseconds) that the caller
+ * must wait after reprogramming the PLL to ensure that it is locked
+ * to the input frequency and stable.  This is likely to depend on the DIVR
+ * value; this is under discussion with the manufacturer.
+ *
+ * Return: the minimum amount of time the caller must wait for the PLL
+ *         to lock (in microseconds)
+ */
+unsigned int wrpll_calc_max_lock_us(const struct wrpll_cfg *c)
+{
+	return MAX_LOCK_US;
+}

drivers/clk/at91/Makefile

···
 obj-$(CONFIG_HAVE_AT91_H32MX)		+= clk-h32mx.o
 obj-$(CONFIG_HAVE_AT91_GENERATED_CLK)	+= clk-generated.o
 obj-$(CONFIG_HAVE_AT91_I2S_MUX_CLK)	+= clk-i2s-mux.o
+obj-$(CONFIG_HAVE_AT91_SAM9X60_PLL)	+= clk-sam9x60-pll.o
 obj-$(CONFIG_SOC_AT91SAM9) += at91sam9260.o at91sam9rl.o at91sam9x5.o
+obj-$(CONFIG_SOC_SAM9X60) += sam9x60.o
 obj-$(CONFIG_SOC_SAMA5D4) += sama5d4.o
 obj-$(CONFIG_SOC_SAMA5D2) += sama5d2.o

drivers/clk/at91/at91sam9260.c

···
 
 static u16 sam9260_plla_icpll[] = { 1, 1 };
 
-static struct clk_range sam9260_plla_outputs[] = {
+static const struct clk_range sam9260_plla_outputs[] = {
 	{ .min = 80000000, .max = 160000000 },
 	{ .min = 150000000, .max = 240000000 },
 };
···
 
 static u16 sam9260_pllb_icpll[] = { 1 };
 
-static struct clk_range sam9260_pllb_outputs[] = {
+static const struct clk_range sam9260_pllb_outputs[] = {
 	{ .min = 70000000, .max = 130000000 },
 };
 
···
 
 static u16 sam9g20_plla_icpll[] = { 0, 0, 0, 0, 1, 1, 1, 1 };
 
-static struct clk_range sam9g20_plla_outputs[] = {
+static const struct clk_range sam9g20_plla_outputs[] = {
 	{ .min = 745000000, .max = 800000000 },
 	{ .min = 695000000, .max = 750000000 },
 	{ .min = 645000000, .max = 700000000 },
···
 
 static u16 sam9g20_pllb_icpll[] = { 0 };
 
-static struct clk_range sam9g20_pllb_outputs[] = {
+static const struct clk_range sam9g20_pllb_outputs[] = {
 	{ .min = 30000000, .max = 100000000 },
 };
 
···
 	.divisors = { 1, 2, 4, 0 },
 };
 
-static struct clk_range sam9261_plla_outputs[] = {
+static const struct clk_range sam9261_plla_outputs[] = {
 	{ .min = 80000000, .max = 200000000 },
 	{ .min = 190000000, .max = 240000000 },
 };
···
 
 static u16 sam9261_pllb_icpll[] = { 1 };
 
-static struct clk_range sam9261_pllb_outputs[] = {
+static const struct clk_range sam9261_pllb_outputs[] = {
 	{ .min = 70000000, .max = 130000000 },
 };
 
···
 	.divisors = { 1, 2, 4, 0 },
 };
 
-static struct clk_range sam9263_pll_outputs[] = {
+static const struct clk_range sam9263_pll_outputs[] = {
 	{ .min = 80000000, .max = 200000000 },
 	{ .min = 190000000, .max = 240000000 },
 };

drivers/clk/at91/at91sam9rl.c

···
 
 static u8 sam9rl_plla_out[] = { 0, 2 };
 
-static struct clk_range sam9rl_plla_outputs[] = {
+static const struct clk_range sam9rl_plla_outputs[] = {
 	{ .min = 80000000, .max = 200000000 },
 	{ .min = 190000000, .max = 240000000 },
 };

drivers/clk/at91/at91sam9x5.c

···
 
 static u16 plla_icpll[] = { 0, 0, 0, 0, 1, 1, 1, 1 };
 
-static struct clk_range plla_outputs[] = {
+static const struct clk_range plla_outputs[] = {
 	{ .min = 745000000, .max = 800000000 },
 	{ .min = 695000000, .max = 750000000 },
 	{ .min = 645000000, .max = 700000000 },
···
 	{ .n = "udpck", .p = "usbck",    .id = 7 },
 	{ .n = "pck0",  .p = "prog0",    .id = 8 },
 	{ .n = "pck1",  .p = "prog1",    .id = 9 },
+};
+
+static const struct clk_pcr_layout at91sam9x5_pcr_layout = {
+	.offset = 0x10c,
+	.cmd = BIT(12),
+	.pid_mask = GENMASK(5, 0),
+	.div_mask = GENMASK(17, 16),
 };
 
 struct pck {
···
 
 	for (i = 0; i < ARRAY_SIZE(at91sam9x5_periphck); i++) {
 		hw = at91_clk_register_sam9x5_peripheral(regmap, &pmc_pcr_lock,
+							 &at91sam9x5_pcr_layout,
 							 at91sam9x5_periphck[i].n,
 							 "masterck",
 							 at91sam9x5_periphck[i].id,
···
 
 	for (i = 0; extra_pcks[i].id; i++) {
 		hw = at91_clk_register_sam9x5_peripheral(regmap, &pmc_pcr_lock,
+							 &at91sam9x5_pcr_layout,
 							 extra_pcks[i].n,
 							 "masterck",
 							 extra_pcks[i].id,

drivers/clk/at91/clk-generated.c

···
  *
  */
 
+#include <linux/bitfield.h>
 #include <linux/clk-provider.h>
 #include <linux/clkdev.h>
 #include <linux/clk/at91_pmc.h>
···
 	spinlock_t *lock;
 	u32 id;
 	u32 gckdiv;
+	const struct clk_pcr_layout *layout;
 	u8 parent_id;
 	bool audio_pll_allowed;
 };
···
 		 __func__, gck->gckdiv, gck->parent_id);
 
 	spin_lock_irqsave(gck->lock, flags);
-	regmap_write(gck->regmap, AT91_PMC_PCR,
-		     (gck->id & AT91_PMC_PCR_PID_MASK));
-	regmap_update_bits(gck->regmap, AT91_PMC_PCR,
-			   AT91_PMC_PCR_GCKDIV_MASK | AT91_PMC_PCR_GCKCSS_MASK |
-			   AT91_PMC_PCR_CMD | AT91_PMC_PCR_GCKEN,
-			   AT91_PMC_PCR_GCKCSS(gck->parent_id) |
-			   AT91_PMC_PCR_CMD |
-			   AT91_PMC_PCR_GCKDIV(gck->gckdiv) |
+	regmap_write(gck->regmap, gck->layout->offset,
+		     (gck->id & gck->layout->pid_mask));
+	regmap_update_bits(gck->regmap, gck->layout->offset,
+			   AT91_PMC_PCR_GCKDIV_MASK | gck->layout->gckcss_mask |
+			   gck->layout->cmd | AT91_PMC_PCR_GCKEN,
+			   field_prep(gck->layout->gckcss_mask, gck->parent_id) |
+			   gck->layout->cmd |
+			   FIELD_PREP(AT91_PMC_PCR_GCKDIV_MASK, gck->gckdiv) |
 			   AT91_PMC_PCR_GCKEN);
 	spin_unlock_irqrestore(gck->lock, flags);
 	return 0;
···
 	unsigned long flags;
 
 	spin_lock_irqsave(gck->lock, flags);
-	regmap_write(gck->regmap, AT91_PMC_PCR,
-		     (gck->id & AT91_PMC_PCR_PID_MASK));
-	regmap_update_bits(gck->regmap, AT91_PMC_PCR,
-			   AT91_PMC_PCR_CMD | AT91_PMC_PCR_GCKEN,
-			   AT91_PMC_PCR_CMD);
+	regmap_write(gck->regmap, gck->layout->offset,
+		     (gck->id & gck->layout->pid_mask));
+	regmap_update_bits(gck->regmap, gck->layout->offset,
+			   gck->layout->cmd | AT91_PMC_PCR_GCKEN,
+			   gck->layout->cmd);
 	spin_unlock_irqrestore(gck->lock, flags);
 }
 
···
 	unsigned int status;
 
 	spin_lock_irqsave(gck->lock, flags);
-	regmap_write(gck->regmap, AT91_PMC_PCR,
-		     (gck->id & AT91_PMC_PCR_PID_MASK));
-	regmap_read(gck->regmap, AT91_PMC_PCR, &status);
+	regmap_write(gck->regmap, gck->layout->offset,
+		     (gck->id & gck->layout->pid_mask));
+	regmap_read(gck->regmap, gck->layout->offset, &status);
 	spin_unlock_irqrestore(gck->lock, flags);
 
 	return status & AT91_PMC_PCR_GCKEN ? 1 : 0;
···
 	unsigned long flags;
 
 	spin_lock_irqsave(gck->lock, flags);
-	regmap_write(gck->regmap, AT91_PMC_PCR,
-		     (gck->id & AT91_PMC_PCR_PID_MASK));
-	regmap_read(gck->regmap, AT91_PMC_PCR, &tmp);
+	regmap_write(gck->regmap, gck->layout->offset,
+		     (gck->id & gck->layout->pid_mask));
+	regmap_read(gck->regmap, gck->layout->offset, &tmp);
 	spin_unlock_irqrestore(gck->lock, flags);
 
-	gck->parent_id = (tmp & AT91_PMC_PCR_GCKCSS_MASK)
-					>> AT91_PMC_PCR_GCKCSS_OFFSET;
-	gck->gckdiv = (tmp & AT91_PMC_PCR_GCKDIV_MASK)
-					>> AT91_PMC_PCR_GCKDIV_OFFSET;
+	gck->parent_id = field_get(gck->layout->gckcss_mask, tmp);
+	gck->gckdiv = FIELD_GET(AT91_PMC_PCR_GCKDIV_MASK, tmp);
 }
 
 struct clk_hw * __init
 at91_clk_register_generated(struct regmap *regmap, spinlock_t *lock,
+			    const struct clk_pcr_layout *layout,
 			    const char *name, const char **parent_names,
 			    u8 num_parents, u8 id, bool pll_audio,
 			    const struct clk_range *range)
···
 	gck->lock = lock;
 	gck->range = *range;
 	gck->audio_pll_allowed = pll_audio;
+	gck->layout = layout;
 
 	clk_generated_startup(gck);
 	hw = &gck->hw;

drivers/clk/at91/clk-master.c

···
 	struct regmap *regmap;
 	const struct clk_master_layout *layout;
 	const struct clk_master_characteristics *characteristics;
+	u32 mckr;
 };
 
 static inline bool clk_master_ready(struct regmap *regmap)
···
 						master->characteristics;
 	unsigned int mckr;
 
-	regmap_read(master->regmap, AT91_PMC_MCKR, &mckr);
+	regmap_read(master->regmap, master->layout->offset, &mckr);
 	mckr &= layout->mask;
 
 	pres = (mckr >> layout->pres_shift) & MASTER_PRES_MASK;
···
 	struct clk_master *master = to_clk_master(hw);
 	unsigned int mckr;
 
-	regmap_read(master->regmap, AT91_PMC_MCKR, &mckr);
+	regmap_read(master->regmap, master->layout->offset, &mckr);
 
 	return mckr & AT91_PMC_CSS;
 }
···
 	return hw;
 }
 
-
 const struct clk_master_layout at91rm9200_master_layout = {
 	.mask = 0x31F,
 	.pres_shift = 2,
+	.offset = AT91_PMC_MCKR,
 };
 
 const struct clk_master_layout at91sam9x5_master_layout = {
 	.mask = 0x373,
 	.pres_shift = 4,
+	.offset = AT91_PMC_MCKR,
 };

drivers/clk/at91/clk-peripheral.c

···
  *
  */
 
+#include <linux/bitops.h>
 #include <linux/clk-provider.h>
 #include <linux/clkdev.h>
 #include <linux/clk/at91_pmc.h>
···
 #define PERIPHERAL_ID_MIN	2
 #define PERIPHERAL_ID_MAX	31
 #define PERIPHERAL_MASK(id)	(1 << ((id) & PERIPHERAL_ID_MAX))
-
-#define PERIPHERAL_RSHIFT_MASK	0x3
-#define PERIPHERAL_RSHIFT(val)	(((val) >> 16) & PERIPHERAL_RSHIFT_MASK)
 
 #define PERIPHERAL_MAX_SHIFT	3
 
···
 	spinlock_t *lock;
 	u32 id;
 	u32 div;
+	const struct clk_pcr_layout *layout;
 	bool auto_div;
 };
 
···
 		return 0;
 
 	spin_lock_irqsave(periph->lock, flags);
-	regmap_write(periph->regmap, AT91_PMC_PCR,
-		     (periph->id & AT91_PMC_PCR_PID_MASK));
-	regmap_update_bits(periph->regmap, AT91_PMC_PCR,
-			   AT91_PMC_PCR_DIV_MASK | AT91_PMC_PCR_CMD |
+	regmap_write(periph->regmap, periph->layout->offset,
+		     (periph->id & periph->layout->pid_mask));
+	regmap_update_bits(periph->regmap, periph->layout->offset,
+			   periph->layout->div_mask | periph->layout->cmd |
 			   AT91_PMC_PCR_EN,
-			   AT91_PMC_PCR_DIV(periph->div) |
-			   AT91_PMC_PCR_CMD |
+			   field_prep(periph->layout->div_mask, periph->div) |
+			   periph->layout->cmd |
 			   AT91_PMC_PCR_EN);
 	spin_unlock_irqrestore(periph->lock, flags);
 
···
 		return;
 
 	spin_lock_irqsave(periph->lock, flags);
-	regmap_write(periph->regmap, AT91_PMC_PCR,
-		     (periph->id & AT91_PMC_PCR_PID_MASK));
-	regmap_update_bits(periph->regmap, AT91_PMC_PCR,
-			   AT91_PMC_PCR_EN | AT91_PMC_PCR_CMD,
-			   AT91_PMC_PCR_CMD);
+	regmap_write(periph->regmap, periph->layout->offset,
+		     (periph->id & periph->layout->pid_mask));
+	regmap_update_bits(periph->regmap, periph->layout->offset,
+			   AT91_PMC_PCR_EN | periph->layout->cmd,
+			   periph->layout->cmd);
 	spin_unlock_irqrestore(periph->lock, flags);
 }
 
···
 		return 1;
 
 	spin_lock_irqsave(periph->lock, flags);
-	regmap_write(periph->regmap, AT91_PMC_PCR,
-		     (periph->id & AT91_PMC_PCR_PID_MASK));
-	regmap_read(periph->regmap, AT91_PMC_PCR, &status);
+	regmap_write(periph->regmap, periph->layout->offset,
+		     (periph->id & periph->layout->pid_mask));
+	regmap_read(periph->regmap, periph->layout->offset, &status);
 	spin_unlock_irqrestore(periph->lock, flags);
 
 	return status & AT91_PMC_PCR_EN ? 1 : 0;
···
 		return parent_rate;
 
 	spin_lock_irqsave(periph->lock, flags);
-	regmap_write(periph->regmap, AT91_PMC_PCR,
-		     (periph->id & AT91_PMC_PCR_PID_MASK));
-	regmap_read(periph->regmap, AT91_PMC_PCR, &status);
+	regmap_write(periph->regmap, periph->layout->offset,
+		     (periph->id & periph->layout->pid_mask));
+	regmap_read(periph->regmap, periph->layout->offset, &status);
 	spin_unlock_irqrestore(periph->lock, flags);
 
 	if (status & AT91_PMC_PCR_EN) {
-		periph->div = PERIPHERAL_RSHIFT(status);
+		periph->div = field_get(periph->layout->div_mask, status);
 		periph->auto_div = false;
 	} else {
 		clk_sam9x5_peripheral_autodiv(periph);
···
 
 struct clk_hw * __init
 at91_clk_register_sam9x5_peripheral(struct regmap *regmap, spinlock_t *lock,
+				    const struct clk_pcr_layout *layout,
 				    const char *name, const char *parent_name,
 				    u32 id, const struct clk_range *range)
 {
···
 	periph->div = 0;
 	periph->regmap = regmap;
 	periph->lock = lock;
-	periph->auto_div = true;
+	if (layout->div_mask)
+		periph->auto_div = true;
+	periph->layout = layout;
 	periph->range = *range;
 
 	hw = &periph->hw;

drivers/clk/at91/clk-sam9x60-pll.c

···
+// SPDX-License-Identifier: GPL-2.0+
+/*
+ *  Copyright (C) 2019 Microchip Technology Inc.
+ *
+ */
+
+#include <linux/bitfield.h>
+#include <linux/clk-provider.h>
+#include <linux/clkdev.h>
+#include <linux/clk/at91_pmc.h>
+#include <linux/of.h>
+#include <linux/mfd/syscon.h>
+#include <linux/regmap.h>
+
+#include "pmc.h"
+
+#define PMC_PLL_CTRL0	0xc
+#define		PMC_PLL_CTRL0_DIV_MSK		GENMASK(7, 0)
+#define		PMC_PLL_CTRL0_ENPLL		BIT(28)
+#define		PMC_PLL_CTRL0_ENPLLCK		BIT(29)
+#define		PMC_PLL_CTRL0_ENLOCK		BIT(31)
+
+#define PMC_PLL_CTRL1	0x10
+#define		PMC_PLL_CTRL1_FRACR_MSK		GENMASK(21, 0)
+#define		PMC_PLL_CTRL1_MUL_MSK		GENMASK(30, 24)
+
+#define PMC_PLL_ACR	0x18
+#define		PMC_PLL_ACR_DEFAULT		0x1b040010UL
+#define		PMC_PLL_ACR_UTMIVR		BIT(12)
+#define		PMC_PLL_ACR_UTMIBG		BIT(13)
+#define		PMC_PLL_ACR_LOOP_FILTER_MSK	GENMASK(31, 24)
+
+#define PMC_PLL_UPDT	0x1c
+#define		PMC_PLL_UPDT_UPDATE		BIT(8)
+
+#define PMC_PLL_ISR0	0xec
+
+#define PLL_DIV_MAX		(FIELD_GET(PMC_PLL_CTRL0_DIV_MSK, UINT_MAX) + 1)
+#define UPLL_DIV		2
+#define PLL_MUL_MAX		(FIELD_GET(PMC_PLL_CTRL1_MUL_MSK, UINT_MAX) + 1)
+
+#define PLL_MAX_ID		1
+
+struct sam9x60_pll {
+	struct clk_hw hw;
+	struct regmap *regmap;
+	spinlock_t *lock;
+	const struct clk_pll_characteristics *characteristics;
+	u32 frac;
+	u8 id;
+	u8 div;
+	u16 mul;
+};
+
+#define to_sam9x60_pll(hw) container_of(hw, struct sam9x60_pll, hw)
+
+static inline bool sam9x60_pll_ready(struct regmap *regmap, int id)
+{
+	unsigned int status;
+
+	regmap_read(regmap, PMC_PLL_ISR0, &status);
+
+	return !!(status & BIT(id));
+}
+
+static int sam9x60_pll_prepare(struct clk_hw *hw)
+{
+	struct sam9x60_pll *pll = to_sam9x60_pll(hw);
+	struct regmap *regmap = pll->regmap;
+	unsigned long flags;
+	u8 div;
+	u16 mul;
+	u32 val;
+
+	spin_lock_irqsave(pll->lock, flags);
+	regmap_write(regmap, PMC_PLL_UPDT, pll->id);
+
+	regmap_read(regmap, PMC_PLL_CTRL0, &val);
+	div = FIELD_GET(PMC_PLL_CTRL0_DIV_MSK, val);
+
+	regmap_read(regmap, PMC_PLL_CTRL1, &val);
+	mul = FIELD_GET(PMC_PLL_CTRL1_MUL_MSK, val);
+
+	if (sam9x60_pll_ready(regmap, pll->id) &&
+	    (div == pll->div && mul == pll->mul)) {
+		spin_unlock_irqrestore(pll->lock, flags);
+		return 0;
+	}
+
+	/* Recommended value for PMC_PLL_ACR */
+	val = PMC_PLL_ACR_DEFAULT;
+	regmap_write(regmap, PMC_PLL_ACR, val);
+
+	regmap_write(regmap, PMC_PLL_CTRL1,
+		     FIELD_PREP(PMC_PLL_CTRL1_MUL_MSK, pll->mul));
+
+	if (pll->characteristics->upll) {
+		/* Enable the UTMI internal bandgap */
+		val |= PMC_PLL_ACR_UTMIBG;
+		regmap_write(regmap, PMC_PLL_ACR, val);
+
+		udelay(10);
+
+		/* Enable the UTMI internal regulator */
+		val |= PMC_PLL_ACR_UTMIVR;
+		regmap_write(regmap, PMC_PLL_ACR, val);
+
+		udelay(10);
+	}
+
+	regmap_update_bits(regmap, PMC_PLL_UPDT,
+			   PMC_PLL_UPDT_UPDATE, PMC_PLL_UPDT_UPDATE);
+
+	regmap_write(regmap, PMC_PLL_CTRL0,
+		     PMC_PLL_CTRL0_ENLOCK | PMC_PLL_CTRL0_ENPLL |
+		     PMC_PLL_CTRL0_ENPLLCK | pll->div);
+
+	regmap_update_bits(regmap, PMC_PLL_UPDT,
+			   PMC_PLL_UPDT_UPDATE, PMC_PLL_UPDT_UPDATE);
+
+	while (!sam9x60_pll_ready(regmap, pll->id))
+		cpu_relax();
+
+	spin_unlock_irqrestore(pll->lock, flags);
+
+	return 0;
+}
+
+static int sam9x60_pll_is_prepared(struct clk_hw *hw)
+{
+	struct sam9x60_pll *pll = to_sam9x60_pll(hw);
+
+	return sam9x60_pll_ready(pll->regmap, pll->id);
+}
+
+static void sam9x60_pll_unprepare(struct clk_hw *hw)
+{
+	struct sam9x60_pll *pll = to_sam9x60_pll(hw);
+	unsigned long flags;
+
+	spin_lock_irqsave(pll->lock, flags);
+
+	regmap_write(pll->regmap, PMC_PLL_UPDT, pll->id);
+
+	regmap_update_bits(pll->regmap, PMC_PLL_CTRL0,
+			   PMC_PLL_CTRL0_ENPLLCK, 0);
+
+	regmap_update_bits(pll->regmap, PMC_PLL_UPDT,
+			   PMC_PLL_UPDT_UPDATE, PMC_PLL_UPDT_UPDATE);
+
+	regmap_update_bits(pll->regmap, PMC_PLL_CTRL0, PMC_PLL_CTRL0_ENPLL, 0);
+
+	if (pll->characteristics->upll)
+		regmap_update_bits(pll->regmap, PMC_PLL_ACR,
+				   PMC_PLL_ACR_UTMIBG | PMC_PLL_ACR_UTMIVR, 0);
+
+	regmap_update_bits(pll->regmap, PMC_PLL_UPDT,
+			   PMC_PLL_UPDT_UPDATE, PMC_PLL_UPDT_UPDATE);
+
+	spin_unlock_irqrestore(pll->lock, flags);
+}
+
+static unsigned long sam9x60_pll_recalc_rate(struct clk_hw *hw,
+					     unsigned long parent_rate)
+{
+	struct sam9x60_pll *pll = to_sam9x60_pll(hw);
+
+	return (parent_rate * (pll->mul + 1)) / (pll->div + 1);
+}
+
+static long sam9x60_pll_get_best_div_mul(struct sam9x60_pll *pll,
+					 unsigned long rate,
+					 unsigned long parent_rate,
+					 bool update)
+{
+	const struct clk_pll_characteristics *characteristics =
+							pll->characteristics;
+	unsigned long bestremainder = ULONG_MAX;
+	unsigned long maxdiv, mindiv, tmpdiv;
+	long bestrate = -ERANGE;
+	unsigned long bestdiv = 0;
+	unsigned long bestmul = 0;
+	unsigned long bestfrac = 0;
+
+	if (rate < characteristics->output[0].min ||
+	    rate > characteristics->output[0].max)
+		return -ERANGE;
+
+	if (!pll->characteristics->upll) {
+		mindiv = parent_rate / rate;
+		if (mindiv < 2)
+			mindiv = 2;
+
+		maxdiv = DIV_ROUND_UP(parent_rate * PLL_MUL_MAX, rate);
+		if (maxdiv > PLL_DIV_MAX)
+			maxdiv = PLL_DIV_MAX;
+	} else {
+		mindiv = maxdiv = UPLL_DIV;
+	}
+
+	for (tmpdiv = mindiv; tmpdiv <= maxdiv; tmpdiv++) {
+		unsigned long remainder;
+		unsigned long tmprate;
+		unsigned long tmpmul;
+		unsigned long tmpfrac = 0;
+
+		/*
+		 * Calculate the multiplier associated with the current
+		 * divider that provide the closest rate to the requested one.
+		 */
+		tmpmul = mult_frac(rate, tmpdiv, parent_rate);
+		tmprate = mult_frac(parent_rate, tmpmul, tmpdiv);
+		remainder = rate - tmprate;
+
+		if (remainder) {
+			tmpfrac = DIV_ROUND_CLOSEST_ULL((u64)remainder * tmpdiv * (1 << 22),
+							parent_rate);
+
+			tmprate += DIV_ROUND_CLOSEST_ULL((u64)tmpfrac * parent_rate,
+							 tmpdiv * (1 << 22));
+
+			if (tmprate > rate)
+				remainder = tmprate - rate;
+			else
+				remainder = rate - tmprate;
+		}
+
+		/*
+		 * Compare the remainder with the best remainder found until
+		 * now and elect a new best multiplier/divider pair if the
+		 * current remainder is smaller than the best one.
+		 */
+		if (remainder < bestremainder) {
+			bestremainder = remainder;
+			bestdiv = tmpdiv;
+			bestmul = tmpmul;
+			bestrate = tmprate;
+			bestfrac = tmpfrac;
+		}
+
+		/* We've found a perfect match!  */
+		if (!remainder)
+			break;
+	}
+
+	/* Check if bestrate is a valid output rate  */
+	if (bestrate < characteristics->output[0].min &&
+	    bestrate > characteristics->output[0].max)
+		return -ERANGE;
+
+	if (update) {
+		pll->div = bestdiv - 1;
+		pll->mul = bestmul - 1;
+		pll->frac = bestfrac;
+	}
+
+	return bestrate;
+}
+
+static long sam9x60_pll_round_rate(struct clk_hw *hw, unsigned long rate,
+				   unsigned long *parent_rate)
+{
+	struct sam9x60_pll *pll = to_sam9x60_pll(hw);
+
+	return sam9x60_pll_get_best_div_mul(pll, rate, *parent_rate, false);
+}
+
+static int sam9x60_pll_set_rate(struct clk_hw *hw, unsigned long rate,
+				unsigned long parent_rate)
+{
+	struct sam9x60_pll *pll = to_sam9x60_pll(hw);
+
+	return sam9x60_pll_get_best_div_mul(pll, rate, parent_rate, true);
+}
+
+static const struct clk_ops pll_ops = {
+	.prepare = sam9x60_pll_prepare,
+	.unprepare = sam9x60_pll_unprepare,
+	.is_prepared = sam9x60_pll_is_prepared,
+	.recalc_rate = sam9x60_pll_recalc_rate,
+	.round_rate = sam9x60_pll_round_rate,
+	.set_rate = sam9x60_pll_set_rate,
+};
+
+struct clk_hw * __init
+sam9x60_clk_register_pll(struct regmap *regmap, spinlock_t *lock,
+			 const char *name, const char *parent_name, u8 id,
+			 const struct clk_pll_characteristics *characteristics)
+{
+	struct sam9x60_pll *pll;
+	struct clk_hw *hw;
+	struct clk_init_data init;
+	unsigned int pllr;
+	int ret;
+
+	if (id > PLL_MAX_ID)
+		return ERR_PTR(-EINVAL);
+
+	pll = kzalloc(sizeof(*pll), GFP_KERNEL);
+	if (!pll)
+		return ERR_PTR(-ENOMEM);
+
+	init.name = name;
+	init.ops = &pll_ops;
+	init.parent_names = &parent_name;
+	init.num_parents = 1;
+	init.flags = CLK_SET_RATE_GATE;
+
+	pll->id = id;
+	pll->hw.init = &init;
+	pll->characteristics = characteristics;
+	pll->regmap = regmap;
+	pll->lock = lock;
+
+	regmap_write(regmap, PMC_PLL_UPDT, id);
+	regmap_read(regmap, PMC_PLL_CTRL0, &pllr);
+	pll->div = FIELD_GET(PMC_PLL_CTRL0_DIV_MSK, pllr);
+	regmap_read(regmap, PMC_PLL_CTRL1, &pllr);
+	pll->mul = FIELD_GET(PMC_PLL_CTRL1_MUL_MSK, pllr);
+
+	hw = &pll->hw;
+	ret = clk_hw_register(NULL, hw);
+	if (ret) {
+		kfree(pll);
+		hw = ERR_PTR(ret);
+	}
+
+	return hw;
+}
+

drivers/clk/at91/clk-usb.c

···
 #define RM9200_USB_DIV_SHIFT	28
 #define RM9200_USB_DIV_TAB_SIZE	4
 
+#define SAM9X5_USBS_MASK	GENMASK(0, 0)
+#define SAM9X60_USBS_MASK	GENMASK(1, 0)
+
 struct at91sam9x5_clk_usb {
 	struct clk_hw hw;
 	struct regmap *regmap;
+	u32 usbs_mask;
 };
 
 #define to_at91sam9x5_clk_usb(hw) \
···
 	if (index > 1)
 		return -EINVAL;
 
-	regmap_update_bits(usb->regmap, AT91_PMC_USB, AT91_PMC_USBS,
-			   index ? AT91_PMC_USBS : 0);
+	regmap_update_bits(usb->regmap, AT91_PMC_USB, usb->usbs_mask, index);
 
 	return 0;
 }
···
 
 	regmap_read(usb->regmap, AT91_PMC_USB, &usbr);
 
-	return usbr & AT91_PMC_USBS;
+	return usbr & usb->usbs_mask;
 }
 
 static int at91sam9x5_clk_usb_set_rate(struct clk_hw *hw, unsigned long rate,
···
 	.set_rate = at91sam9x5_clk_usb_set_rate,
 };
 
-struct clk_hw * __init
-at91sam9x5_clk_register_usb(struct regmap *regmap, const char *name,
-			    const char **parent_names, u8 num_parents)
+static struct clk_hw * __init
+_at91sam9x5_clk_register_usb(struct regmap *regmap, const char *name,
+			     const char **parent_names, u8 num_parents,
+			     u32 usbs_mask)
 {
 	struct at91sam9x5_clk_usb *usb;
 	struct clk_hw *hw;
···
 
 	usb->hw.init = &init;
 	usb->regmap = regmap;
+	usb->usbs_mask = SAM9X5_USBS_MASK;
 
 	hw = &usb->hw;
 	ret = clk_hw_register(NULL, &usb->hw);
···
 	}
 
 	return hw;
+}
+
+struct clk_hw * __init
+at91sam9x5_clk_register_usb(struct regmap *regmap, const char *name,
+			    const char **parent_names, u8 num_parents)
+{
+	return _at91sam9x5_clk_register_usb(regmap, name, parent_names,
+					    num_parents, SAM9X5_USBS_MASK);
+}
+
+struct clk_hw * __init
+sam9x60_clk_register_usb(struct regmap *regmap, const char *name,
+			 const char **parent_names, u8 num_parents)
+{
+	return _at91sam9x5_clk_register_usb(regmap, name, parent_names,
+					    num_parents, SAM9X60_USBS_MASK);
 }
 
 struct clk_hw * __init

drivers/clk/at91/dt-compat.c

···
 	       of_sama5d2_clk_audio_pll_pmc_setup);
 #endif /* CONFIG_HAVE_AT91_AUDIO_PLL */
 
+static const struct clk_pcr_layout dt_pcr_layout = {
+	.offset = 0x10c,
+	.cmd = BIT(12),
+	.pid_mask = GENMASK(5, 0),
+	.div_mask = GENMASK(17, 16),
+	.gckcss_mask = GENMASK(10, 8),
+};
+
 #ifdef CONFIG_HAVE_AT91_GENERATED_CLK
 #define GENERATED_SOURCE_MAX	6
 
···
 		     id == GCK_ID_CLASSD))
 			pll_audio = true;
 
-		hw = at91_clk_register_generated(regmap, &pmc_pcr_lock, name,
+		hw = at91_clk_register_generated(regmap, &pmc_pcr_lock,
+						 &dt_pcr_layout, name,
 						 parent_names, num_parents,
 						 id, pll_audio, &range);
 		if (IS_ERR(hw))
···
 
 			hw = at91_clk_register_sam9x5_peripheral(regmap,
 								 &pmc_pcr_lock,
+								 &dt_pcr_layout,
 								 name,
 								 parent_name,
 								 id, &range);

drivers/clk/at91/pmc.h

···
 #define CLK_RANGE(MIN, MAX) {.min = MIN, .max = MAX,}
 
 struct clk_master_layout {
+	u32 offset;
 	u32 mask;
 	u8 pres_shift;
 };
···
 struct clk_pll_characteristics {
 	struct clk_range input;
 	int num_output;
-	struct clk_range *output;
+	const struct clk_range *output;
 	u16 *icpll;
 	u8 *out;
+	u8 upll : 1;
 };
 
 struct clk_programmable_layout {
···
 extern const struct clk_programmable_layout at91rm9200_programmable_layout;
 extern const struct clk_programmable_layout at91sam9g45_programmable_layout;
 extern const struct clk_programmable_layout at91sam9x5_programmable_layout;
+
+struct clk_pcr_layout {
+	u32 offset;
+	u32 cmd;
+	u32 div_mask;
+	u32 gckcss_mask;
+	u32 pid_mask;
+};
+
+#define field_get(_mask, _reg) (((_reg) & (_mask)) >> (ffs(_mask) - 1))
+#define field_prep(_mask, _val) (((_val) << (ffs(_mask) - 1)) & (_mask))
 
 #define ndck(a, s) (a[s - 1].id + 1)
 #define nck(a) (a[ARRAY_SIZE(a) - 1].id + 1)
···
 
 struct clk_hw * __init
 at91_clk_register_generated(struct regmap *regmap, spinlock_t *lock,
+			    const struct clk_pcr_layout *layout,
 			    const char *name, const char **parent_names,
 			    u8 num_parents, u8 id, bool pll_audio,
 			    const struct clk_range *range);
···
 			     const char *parent_name, u32 id);
 struct clk_hw * __init
 at91_clk_register_sam9x5_peripheral(struct regmap *regmap, spinlock_t *lock,
+				    const struct clk_pcr_layout *layout,
 				    const char *name, const char *parent_name,
 				    u32 id, const struct clk_range *range);
 
···
 struct clk_hw * __init
 at91_clk_register_plldiv(struct regmap *regmap, const char *name,
 			 const char *parent_name);
+
+struct clk_hw * __init
+sam9x60_clk_register_pll(struct regmap *regmap, spinlock_t *lock,
+			 const char *name, const char *parent_name, u8 id,
+			 const struct clk_pll_characteristics *characteristics);
 
 struct clk_hw * __init
 at91_clk_register_programmable(struct regmap *regmap, const char *name,
···
 struct clk_hw * __init
 at91sam9n12_clk_register_usb(struct regmap *regmap, const char *name,
 			     const char *parent_name);
+struct clk_hw * __init
+sam9x60_clk_register_usb(struct regmap *regmap, const char *name,
+			 const char **parent_names, u8 num_parents);
 struct clk_hw * __init
 at91rm9200_clk_register_usb(struct regmap *regmap, const char *name,
 			    const char *parent_name, const u32 *divisors);

drivers/clk/at91/sam9x60.c

···
+// SPDX-License-Identifier: GPL-2.0
+#include <linux/clk-provider.h>
+#include <linux/mfd/syscon.h>
+#include <linux/slab.h>
+
+#include <dt-bindings/clock/at91.h>
+
+#include "pmc.h"
+
+static DEFINE_SPINLOCK(pmc_pll_lock);
+
+static const struct clk_master_characteristics mck_characteristics = {
+	.output = { .min = 140000000, .max = 200000000 },
+	.divisors = { 1, 2, 4, 3 },
+	.have_div3_pres = 1,
+};
+
+static const struct clk_master_layout sam9x60_master_layout = {
+	.mask = 0x373,
+	.pres_shift = 4,
+	.offset = 0x28,
+};
+
+static const struct clk_range plla_outputs[] = {
+	{ .min = 300000000, .max = 600000000 },
+};
+
+static const struct clk_pll_characteristics plla_characteristics = {
+	.input = { .min = 12000000, .max = 48000000 },
+	.num_output = ARRAY_SIZE(plla_outputs),
+	.output = plla_outputs,
+};
+
+static const struct clk_range upll_outputs[] = {
+	{ .min = 300000000, .max = 500000000 },
+};
+
+static const struct clk_pll_characteristics upll_characteristics = {
+	.input = { .min = 12000000, .max = 48000000 },
+	.num_output = ARRAY_SIZE(upll_outputs),
+	.output = upll_outputs,
+	.upll = true,
+};
+
+static const struct clk_programmable_layout sam9x60_programmable_layout = {
+	.pres_shift = 8,
+	.css_mask = 0x1f,
+	.have_slck_mck = 0,
+};
+
+static const struct clk_pcr_layout sam9x60_pcr_layout = {
+	.offset = 0x88,
+	.cmd = BIT(31),
+	.gckcss_mask = GENMASK(12, 8),
+	.pid_mask = GENMASK(6, 0),
+};
+
+static const struct {
+	char *n;
+	char *p;
+	u8 id;
+} sam9x60_systemck[] = {
+	{ .n = "ddrck",  .p = "masterck", .id = 2 },
+	{ .n = "uhpck",  .p = "usbck",    .id = 6 },
+	{ .n = "pck0",   .p = "prog0",    .id = 8 },
+	{ .n = "pck1",   .p = "prog1",    .id = 9 },
+	{ .n = "qspick", .p = "masterck", .id = 19 },
+};
+
+static const struct {
+	char *n;
+	u8 id;
+} sam9x60_periphck[] = {
+	{ .n = "pioA_clk",   .id = 2, },
+	{ .n = "pioB_clk",   .id = 3, },
+	{ .n = "pioC_clk",   .id = 4, },
+	{ .n = "flex0_clk",  .id = 5, },
+	{ .n = "flex1_clk",  .id = 6, },
+	{ .n = "flex2_clk",  .id = 7, },
+	{ .n = "flex3_clk",  .id = 8, },
+	{ .n = "flex6_clk",  .id = 9, },
+	{ .n = "flex7_clk",  .id = 10, },
+	{ .n = "flex8_clk",  .id = 11, },
+	{ .n = "sdmmc0_clk", .id = 12, },
+	{ .n = "flex4_clk",  .id = 13, },
+	{ .n = "flex5_clk",  .id = 14, },
+	{ .n = "flex9_clk",  .id = 15, },
+	{ .n = "flex10_clk", .id = 16, },
+	{ .n = "tcb0_clk",   .id = 17, },
+	{ .n = "pwm_clk",    .id = 18, },
+	{ .n = "adc_clk",    .id = 19, },
+	{ .n = "dma0_clk",   .id = 20, },
+	{ .n = "matrix_clk", .id = 21, },
+	{ .n = "uhphs_clk",  .id = 22, },
+	{ .n = "udphs_clk",  .id = 23, },
+	{ .n = "macb0_clk",  .id = 24, },
+	{ .n = "lcd_clk",    .id = 25, },
+	{ .n = "sdmmc1_clk", .id = 26, },
+	{ .n = "macb1_clk",  .id = 27, },
+	{ .n = "ssc_clk",    .id = 28, },
+	{ .n = "can0_clk",   .id = 29, },
+	{ .n = "can1_clk",   .id = 30, },
+	{ .n = "flex11_clk", .id = 32, },
+	{ .n = "flex12_clk", .id = 33, },
+	{ .n = "i2s_clk",    .id = 34, },
+	{ .n = "qspi_clk",   .id = 35, },
+	{ .n = "gfx2d_clk",  .id = 36, },
+	{ .n = "pit64b_clk", .id = 37, },
+	{ .n = "trng_clk",   .id = 38, },
+	{ .n = "aes_clk",    .id = 39, },
+	{ .n = "tdes_clk",   .id = 40, },
+	{ .n = "sha_clk",    .id = 41, },
+	{ .n = "classd_clk", .id = 42, },
+	{ .n = "isi_clk",    .id = 43, },
+	{ .n = "pioD_clk",   .id = 44, },
+	{ .n = "tcb1_clk",   .id = 45, },
+	{ .n = "dbgu_clk",   .id = 47, },
+	{ .n = "mpddr_clk",  .id = 49, },
+};
+
+static const struct {
+	char *n;
+	u8 id;
+	struct clk_range r;
+	bool pll;
+} sam9x60_gck[] = {
+	{ .n = "flex0_gclk",  .id = 5, },
+	{ .n = "flex1_gclk",  .id = 6, },
+	{ .n = "flex2_gclk",  .id = 7, },
+	{ .n = "flex3_gclk",  .id = 8, },
+	{ .n = "flex6_gclk",  .id = 9, },
+	{ .n = "flex7_gclk",  .id = 10, },
+	{ .n = "flex8_gclk",  .id = 11, },
+	{ .n = "sdmmc0_gclk", .id = 12, .r = { .min = 0, .max = 105000000 }, },
+	{ .n = "flex4_gclk",  .id = 13, },
+	{ .n = "flex5_gclk",  .id = 14, },
+	{ .n = "flex9_gclk",  .id = 15, },
+	{ .n = "flex10_gclk", .id = 16, },
+	{ .n = "tcb0_gclk",   .id = 17, },
+	{ .n = "adc_gclk",    .id = 19, },
+	{ .n = "lcd_gclk",    .id = 25, .r = { .min = 0, .max = 140000000 }, },
+	{ .n = "sdmmc1_gclk", .id = 26, .r = { .min = 0, .max = 105000000 }, },
+	{ .n = "flex11_gclk", .id = 32, },
+	{ .n = "flex12_gclk", .id = 33, },
+	{ .n = "i2s_gclk",    .id = 34, .r = { .min = 0, .max = 105000000 },
+		.pll = true, },
+	{ .n = "pit64b_gclk", .id = 37, },
+	{ .n = "classd_gclk", .id = 42, .r = { .min = 0, .max = 100000000 },
+		.pll = true, },
+	{ .n = "tcb1_gclk",   .id = 45, },
+	{ .n = "dbgu_gclk",   .id = 47, },
+};
+
+static void __init sam9x60_pmc_setup(struct device_node *np)
+{
+	struct clk_range range = CLK_RANGE(0, 0);
+	const char *td_slck_name, *md_slck_name, *mainxtal_name;
+	struct pmc_data *sam9x60_pmc;
+	const char *parent_names[6];
+	struct regmap *regmap;
+	struct clk_hw *hw;
+	int i;
+	bool bypass;
+
+	i = of_property_match_string(np, "clock-names", "td_slck");
+	if (i < 0)
+		return;
+
+	td_slck_name = of_clk_get_parent_name(np, i);
+
+	i = of_property_match_string(np, "clock-names", "md_slck");
+	if (i < 0)
+		return;
+
+	md_slck_name = of_clk_get_parent_name(np, i);
+
+	i = of_property_match_string(np, "clock-names", "main_xtal");
+	if (i < 0)
+		return;
+	mainxtal_name = of_clk_get_parent_name(np, i);
+
+	regmap = syscon_node_to_regmap(np);
+	if (IS_ERR(regmap))
+		return;
+
+	sam9x60_pmc = pmc_data_allocate(PMC_MAIN + 1,
+					nck(sam9x60_systemck),
+					nck(sam9x60_periphck),
+					nck(sam9x60_gck));
+	if (!sam9x60_pmc)
+		return;
+
+	hw = at91_clk_register_main_rc_osc(regmap, "main_rc_osc", 24000000,
+					   50000000);
+	if (IS_ERR(hw))
+		goto err_free;
+
+	bypass = of_property_read_bool(np, "atmel,osc-bypass");
+
+	hw = at91_clk_register_main_osc(regmap, "main_osc", mainxtal_name,
+					bypass);
+	if (IS_ERR(hw))
+		goto err_free;
+
+	parent_names[0] = "main_rc_osc";
+	parent_names[1] = "main_osc";
+	hw = at91_clk_register_sam9x5_main(regmap, "mainck", parent_names, 2);
+	if (IS_ERR(hw))
+		goto err_free;
+
+	sam9x60_pmc->chws[PMC_MAIN] = hw;
+
+	hw = sam9x60_clk_register_pll(regmap, &pmc_pll_lock, "pllack",
+				      "mainck", 0, &plla_characteristics);
+	if (IS_ERR(hw))
+		goto err_free;
+
+	hw = sam9x60_clk_register_pll(regmap, &pmc_pll_lock, "upllck",
+				      "main_osc", 1, &upll_characteristics);
+	if (IS_ERR(hw))
+		goto err_free;
+
+	sam9x60_pmc->chws[PMC_UTMI] = hw;
+
+	parent_names[0] = md_slck_name;
+	parent_names[1] = "mainck";
+	parent_names[2] = "pllack";
+	hw = at91_clk_register_master(regmap, "masterck", 3, parent_names,
+				      &sam9x60_master_layout,
+				      &mck_characteristics);
+	if (IS_ERR(hw))
+		goto err_free;
+
+	sam9x60_pmc->chws[PMC_MCK] = hw;
+
+	parent_names[0] = "pllack";
+	parent_names[1] = "upllck";
+	parent_names[2] = "mainck";
+	parent_names[3] = "mainck";
+	hw = sam9x60_clk_register_usb(regmap, "usbck", parent_names, 4);
+	if (IS_ERR(hw))
+		goto err_free;
+
+	parent_names[0] = md_slck_name;
+	parent_names[1] = td_slck_name;
+	parent_names[2] = "mainck";
+	parent_names[3] = "masterck";
+	parent_names[4] = "pllack";
+	parent_names[5] = "upllck";
+	for (i = 0; i < 8; i++) {
+		char name[6];
+
+		snprintf(name, sizeof(name), "prog%d", i);
+
+		hw = at91_clk_register_programmable(regmap, name,
+						    parent_names, 6, i,
+						    &sam9x60_programmable_layout);
+		if (IS_ERR(hw))
+			goto err_free;
+	}
+
+	for (i = 0; i < ARRAY_SIZE(sam9x60_systemck); i++) {
+		hw = at91_clk_register_system(regmap, sam9x60_systemck[i].n,
+					      sam9x60_systemck[i].p,
+					      sam9x60_systemck[i].id);
+		if (IS_ERR(hw))
+			goto err_free;
+
+		sam9x60_pmc->shws[sam9x60_systemck[i].id] = hw;
+	}
+
+	for (i = 0; i < ARRAY_SIZE(sam9x60_periphck); i++) {
+		hw = at91_clk_register_sam9x5_peripheral(regmap, &pmc_pcr_lock,
+							 &sam9x60_pcr_layout,
+							 sam9x60_periphck[i].n,
+							 "masterck",
+							 sam9x60_periphck[i].id,
+							 &range);
+		if (IS_ERR(hw))
+			goto err_free;
+
+		sam9x60_pmc->phws[sam9x60_periphck[i].id] = hw;
+	}
+
+	for (i = 0; i < ARRAY_SIZE(sam9x60_gck); i++) {
+		hw = at91_clk_register_generated(regmap, &pmc_pcr_lock,
+						 &sam9x60_pcr_layout,
+						 sam9x60_gck[i].n,
+						 parent_names, 6,
+						 sam9x60_gck[i].id,
+						 sam9x60_gck[i].pll,
+						 &sam9x60_gck[i].r);
+		if (IS_ERR(hw))
+			goto err_free;
+
+		sam9x60_pmc->ghws[sam9x60_gck[i].id] = hw;
+	}
+
+	of_clk_add_hw_provider(np, of_clk_hw_pmc_get, sam9x60_pmc);
+
+	return;
+
+err_free:
+	pmc_data_free(sam9x60_pmc);
+}
+/* Some clks are used for a clocksource */
+CLK_OF_DECLARE(sam9x60_pmc, "microchip,sam9x60-pmc", sam9x60_pmc_setup);

drivers/clk/at91/sama5d2.c

···
 
 static u16 plla_icpll[] = { 0 };
 
-static struct clk_range plla_outputs[] = {
+static const struct clk_range plla_outputs[] = {
 	{ .min = 600000000, .max = 1200000000 },
 };
 
···
 	.output = plla_outputs,
 	.icpll = plla_icpll,
 	.out = plla_out,
+};
+
+static const struct clk_pcr_layout sama5d2_pcr_layout = {
+	.offset = 0x10c,
+	.cmd = BIT(12),
+	.gckcss_mask = GENMASK(10, 8),
+	.pid_mask = GENMASK(6, 0),
 };
 
 static const struct {
···
 
 	for (i = 0; i < ARRAY_SIZE(sama5d2_periphck); i++) {
 		hw = at91_clk_register_sam9x5_peripheral(regmap, &pmc_pcr_lock,
+							 &sama5d2_pcr_layout,
 							 sama5d2_periphck[i].n,
 							 "masterck",
 							 sama5d2_periphck[i].id,
···
 
 	for (i = 0; i < ARRAY_SIZE(sama5d2_periph32ck); i++) {
 		hw = at91_clk_register_sam9x5_peripheral(regmap, &pmc_pcr_lock,
+							 &sama5d2_pcr_layout,
 							 sama5d2_periph32ck[i].n,
 							 "h32mxck",
 							 sama5d2_periph32ck[i].id,
···
 	parent_names[5] = "audiopll_pmcck";
 	for (i = 0; i < ARRAY_SIZE(sama5d2_gck); i++) {
 		hw = at91_clk_register_generated(regmap, &pmc_pcr_lock,
+						 &sama5d2_pcr_layout,
 						 sama5d2_gck[i].n,
 						 parent_names, 6,
 						 sama5d2_gck[i].id,

drivers/clk/at91/sama5d4.c

···
 
 static u16 plla_icpll[] = { 0 };
 
-static struct clk_range plla_outputs[] = {
+static const struct clk_range plla_outputs[] = {
 	{ .min = 600000000, .max = 1200000000 },
 };
 
···
 	.output = plla_outputs,
 	.icpll = plla_icpll,
 	.out = plla_out,
+};
+
+static const struct clk_pcr_layout sama5d4_pcr_layout = {
+	.offset = 0x10c,
+	.cmd = BIT(12),
+	.pid_mask = GENMASK(6, 0),
 };
 
 static const struct {
···
 
 	for (i = 0; i < ARRAY_SIZE(sama5d4_periphck); i++) {
 		hw = at91_clk_register_sam9x5_peripheral(regmap, &pmc_pcr_lock,
+							 &sama5d4_pcr_layout,
 							 sama5d4_periphck[i].n,
 							 "masterck",
 							 sama5d4_periphck[i].id,
···
 
 	for (i = 0; i < ARRAY_SIZE(sama5d4_periph32ck); i++) {
 		hw = at91_clk_register_sam9x5_peripheral(regmap, &pmc_pcr_lock,
+							 &sama5d4_pcr_layout,
 							 sama5d4_periph32ck[i].n,
 							 "h32mxck",
 							 sama5d4_periph32ck[i].id,

drivers/clk/at91/sckc.c

···
 	return hw;
 }
 
-static void __init
-of_at91sam9x5_clk_slow_osc_setup(struct device_node *np, void __iomem *sckcr)
-{
-	struct clk_hw *hw;
-	const char *parent_name;
-	const char *name = np->name;
-	u32 startup;
-	bool bypass;
-
-	parent_name = of_clk_get_parent_name(np, 0);
-	of_property_read_string(np, "clock-output-names", &name);
-	of_property_read_u32(np, "atmel,startup-time-usec", &startup);
-	bypass = of_property_read_bool(np, "atmel,osc-bypass");
-
-	hw = at91_clk_register_slow_osc(sckcr, name, parent_name, startup,
-					 bypass);
-	if (IS_ERR(hw))
-		return;
-
-	of_clk_add_hw_provider(np, of_clk_hw_simple_get, hw);
-}
-
 static unsigned long clk_slow_rc_osc_recalc_rate(struct clk_hw *hw,
 						 unsigned long parent_rate)
 {
···
 	return hw;
 }
 
-static void __init
-of_at91sam9x5_clk_slow_rc_osc_setup(struct device_node *np, void __iomem *sckcr)
-{
-	struct clk_hw *hw;
-	u32 frequency = 0;
-	u32 accuracy = 0;
-	u32 startup = 0;
-	const char *name = np->name;
-
-	of_property_read_string(np, "clock-output-names", &name);
-	of_property_read_u32(np, "clock-frequency", &frequency);
-	of_property_read_u32(np, "clock-accuracy", &accuracy);
-	of_property_read_u32(np, "atmel,startup-time-usec", &startup);
-
-	hw = at91_clk_register_slow_rc_osc(sckcr, name, frequency, accuracy,
-					    startup);
-	if (IS_ERR(hw))
-		return;
-
-	of_clk_add_hw_provider(np, of_clk_hw_simple_get, hw);
-}
-
 static int clk_sam9x5_slow_set_parent(struct clk_hw *hw, u8 index)
 {
 	struct clk_sam9x5_slow *slowck = to_clk_sam9x5_slow(hw);
···
 	return hw;
 }
 
-static void __init
-of_at91sam9x5_clk_slow_setup(struct device_node *np, void __iomem *sckcr)
+static void __init at91sam9x5_sckc_register(struct device_node *np,
+					    unsigned int rc_osc_startup_us)
 {
-	struct clk_hw *hw;
-	const char *parent_names[2];
-	unsigned int num_parents;
-	const char *name = np->name;
-
-	num_parents = of_clk_get_parent_count(np);
-	if (num_parents == 0 || num_parents > 2)
-		return;
-
-	of_clk_parent_fill(np, parent_names, num_parents);
-
-	of_property_read_string(np, "clock-output-names", &name);
-
-	hw = at91_clk_register_sam9x5_slow(sckcr, name, parent_names,
-					    num_parents);
-	if (IS_ERR(hw))
-		return;
-
-	of_clk_add_hw_provider(np, of_clk_hw_simple_get, hw);
-}
-
-static const struct of_device_id sckc_clk_ids[] __initconst = {
-	/* Slow clock */
-	{
-		.compatible = "atmel,at91sam9x5-clk-slow-osc",
-		.data = of_at91sam9x5_clk_slow_osc_setup,
-	},
-	{
-		.compatible = "atmel,at91sam9x5-clk-slow-rc-osc",
-		.data = of_at91sam9x5_clk_slow_rc_osc_setup,
-	},
-	{
-		.compatible = "atmel,at91sam9x5-clk-slow",
-		.data = of_at91sam9x5_clk_slow_setup,
-	},
-	{ /*sentinel*/ }
-};
-
-static void __init of_at91sam9x5_sckc_setup(struct device_node *np)
-{
-	struct device_node *childnp;
-	void (*clk_setup)(struct device_node *, void __iomem *);
-	const struct of_device_id *clk_id;
+	const char *parent_names[2] = { "slow_rc_osc", "slow_osc" };
 	void __iomem *regbase = of_iomap(np, 0);
+	struct device_node *child = NULL;
+	const char *xtal_name;
+	struct clk_hw *hw;
+	bool bypass;
 
 	if (!regbase)
 		return;
 
-	for_each_child_of_node(np, childnp) {
-		clk_id = of_match_node(sckc_clk_ids, childnp);
-		if (!clk_id)
-			continue;
-		clk_setup = clk_id->data;
-		clk_setup(childnp, regbase);
+	hw = at91_clk_register_slow_rc_osc(regbase, parent_names[0], 32768,
+					   50000000, rc_osc_startup_us);
+	if (IS_ERR(hw))
+		return;
+
+	xtal_name = of_clk_get_parent_name(np, 0);
+	if (!xtal_name) {
+		/* DT backward compatibility */
+		child = of_get_compatible_child(np, "atmel,at91sam9x5-clk-slow-osc");
+		if (!child)
+			return;
+
+		xtal_name = of_clk_get_parent_name(child, 0);
+		bypass = of_property_read_bool(child, "atmel,osc-bypass");
+
+		child =  of_get_compatible_child(np, "atmel,at91sam9x5-clk-slow");
+	} else {
+		bypass = of_property_read_bool(np, "atmel,osc-bypass");
 	}
+
+	if (!xtal_name)
+		return;
+
+	hw = at91_clk_register_slow_osc(regbase, parent_names[1], xtal_name,
+					1200000, bypass);
+	if (IS_ERR(hw))
+		return;
+
+	hw = at91_clk_register_sam9x5_slow(regbase, "slowck", parent_names, 2);
+	if (IS_ERR(hw))
+		return;
+
+	of_clk_add_hw_provider(np, of_clk_hw_simple_get, hw);
+
+	/* DT backward compatibility */
+	if (child)
+		of_clk_add_hw_provider(child, of_clk_hw_simple_get, hw);
+}
+
+static void __init of_at91sam9x5_sckc_setup(struct device_node *np)
+{
+	at91sam9x5_sckc_register(np, 75);
 }
 CLK_OF_DECLARE(at91sam9x5_clk_sckc, "atmel,at91sam9x5-sckc",
 	       of_at91sam9x5_sckc_setup);
+
+static void __init of_sama5d3_sckc_setup(struct device_node *np)
+{
+	at91sam9x5_sckc_register(np, 500);
+}
+CLK_OF_DECLARE(sama5d3_clk_sckc, "atmel,sama5d3-sckc",
+	       of_sama5d3_sckc_setup);
 
 static int clk_sama5d4_slow_osc_prepare(struct clk_hw *hw)
 {

drivers/clk/clk-stm32f4.c

···
 	{ STM32F4_RCC_APB2ENR, 26,	"ltdc",		"apb2_div" },
 };
 
+static const struct stm32f4_gate_data stm32f769_gates[] __initconst = {
+	{ STM32F4_RCC_AHB1ENR,  0,	"gpioa",	"ahb_div" },
+	{ STM32F4_RCC_AHB1ENR,  1,	"gpiob",	"ahb_div" },
+	{ STM32F4_RCC_AHB1ENR,  2,	"gpioc",	"ahb_div" },
+	{ STM32F4_RCC_AHB1ENR,  3,	"gpiod",	"ahb_div" },
+	{ STM32F4_RCC_AHB1ENR,  4,	"gpioe",	"ahb_div" },
+	{ STM32F4_RCC_AHB1ENR,  5,	"gpiof",	"ahb_div" },
+	{ STM32F4_RCC_AHB1ENR,  6,	"gpiog",	"ahb_div" },
+	{ STM32F4_RCC_AHB1ENR,  7,	"gpioh",	"ahb_div" },
+	{ STM32F4_RCC_AHB1ENR,  8,	"gpioi",	"ahb_div" },
+	{ STM32F4_RCC_AHB1ENR,  9,	"gpioj",	"ahb_div" },
+	{ STM32F4_RCC_AHB1ENR, 10,	"gpiok",	"ahb_div" },
+	{ STM32F4_RCC_AHB1ENR, 12,	"crc",		"ahb_div" },
+	{ STM32F4_RCC_AHB1ENR, 18,	"bkpsra",	"ahb_div" },
+	{ STM32F4_RCC_AHB1ENR, 20,	"dtcmram",	"ahb_div" },
+	{ STM32F4_RCC_AHB1ENR, 21,	"dma1",		"ahb_div" },
+	{ STM32F4_RCC_AHB1ENR, 22,	"dma2",		"ahb_div" },
+	{ STM32F4_RCC_AHB1ENR, 23,	"dma2d",	"ahb_div" },
+	{ STM32F4_RCC_AHB1ENR, 25,	"ethmac",	"ahb_div" },
+	{ STM32F4_RCC_AHB1ENR, 26,	"ethmactx",	"ahb_div" },
+	{ STM32F4_RCC_AHB1ENR, 27,	"ethmacrx",	"ahb_div" },
+	{ STM32F4_RCC_AHB1ENR, 28,	"ethmacptp",	"ahb_div" },
+	{ STM32F4_RCC_AHB1ENR, 29,	"otghs",	"ahb_div" },
+	{ STM32F4_RCC_AHB1ENR, 30,	"otghsulpi",	"ahb_div" },
+
+	{ STM32F4_RCC_AHB2ENR,  0,	"dcmi",		"ahb_div" },
+	{ STM32F4_RCC_AHB2ENR,  1,	"jpeg",		"ahb_div" },
+	{ STM32F4_RCC_AHB2ENR,  4,	"cryp",		"ahb_div" },
+	{ STM32F4_RCC_AHB2ENR,  5,	"hash",		"ahb_div" },
+	{ STM32F4_RCC_AHB2ENR,  6,	"rng",		"pll48"   },
+	{ STM32F4_RCC_AHB2ENR,  7,	"otgfs",	"pll48"   },
+
+	{ STM32F4_RCC_AHB3ENR,  0,	"fmc",		"ahb_div",
+		CLK_IGNORE_UNUSED },
+	{ STM32F4_RCC_AHB3ENR,  1,	"qspi",		"ahb_div",
+		CLK_IGNORE_UNUSED },
+
+	{ STM32F4_RCC_APB1ENR,  0,	"tim2",		"apb1_mul" },
+	{ STM32F4_RCC_APB1ENR,  1,	"tim3",		"apb1_mul" },
+	{ STM32F4_RCC_APB1ENR,  2,	"tim4",		"apb1_mul" },
+	{ STM32F4_RCC_APB1ENR,  3,	"tim5",		"apb1_mul" },
+	{ STM32F4_RCC_APB1ENR,  4,	"tim6",		"apb1_mul" },
+	{ STM32F4_RCC_APB1ENR,  5,	"tim7",		"apb1_mul" },
+	{ STM32F4_RCC_APB1ENR,  6,	"tim12",	"apb1_mul" },
+	{ STM32F4_RCC_APB1ENR,  7,	"tim13",	"apb1_mul" },
+	{ STM32F4_RCC_APB1ENR,  8,	"tim14",	"apb1_mul" },
+	{ STM32F4_RCC_APB1ENR, 10,	"rtcapb",	"apb1_mul" },
+	{ STM32F4_RCC_APB1ENR, 11,	"wwdg",		"apb1_div" },
+	{ STM32F4_RCC_APB1ENR, 13,	"can3",		"apb1_div" },
+	{ STM32F4_RCC_APB1ENR, 14,	"spi2",		"apb1_div" },
+	{ STM32F4_RCC_APB1ENR, 15,	"spi3",		"apb1_div" },
+	{ STM32F4_RCC_APB1ENR, 16,	"spdifrx",	"apb1_div" },
+	{ STM32F4_RCC_APB1ENR, 25,	"can1",		"apb1_div" },
+	{ STM32F4_RCC_APB1ENR, 26,	"can2",		"apb1_div" },
+	{ STM32F4_RCC_APB1ENR, 27,	"cec",		"apb1_div" },
+	{ STM32F4_RCC_APB1ENR, 28,	"pwr",		"apb1_div" },
+	{ STM32F4_RCC_APB1ENR, 29,	"dac",		"apb1_div" },
+
+	{ STM32F4_RCC_APB2ENR,  0,	"tim1",		"apb2_mul" },
+	{ STM32F4_RCC_APB2ENR,  1,	"tim8",		"apb2_mul" },
+	{ STM32F4_RCC_APB2ENR,  7,	"sdmmc2",	"sdmux2" },
+	{ STM32F4_RCC_APB2ENR,  8,	"adc1",		"apb2_div" },
+	{ STM32F4_RCC_APB2ENR,  9,	"adc2",		"apb2_div" },
+	{ STM32F4_RCC_APB2ENR, 10,	"adc3",		"apb2_div" },
+	{ STM32F4_RCC_APB2ENR, 11,	"sdmmc1",	"sdmux1" },
+	{ STM32F4_RCC_APB2ENR, 12,	"spi1",		"apb2_div" },
+	{ STM32F4_RCC_APB2ENR, 13,	"spi4",		"apb2_div" },
+	{ STM32F4_RCC_APB2ENR, 14,	"syscfg",	"apb2_div" },
+	{ STM32F4_RCC_APB2ENR, 16,	"tim9",		"apb2_mul" },
+	{ STM32F4_RCC_APB2ENR, 17,	"tim10",	"apb2_mul" },
+	{ STM32F4_RCC_APB2ENR, 18,	"tim11",	"apb2_mul" },
+	{ STM32F4_RCC_APB2ENR, 20,	"spi5",		"apb2_div" },
+	{ STM32F4_RCC_APB2ENR, 21,	"spi6",		"apb2_div" },
+	{ STM32F4_RCC_APB2ENR, 22,	"sai1",		"apb2_div" },
+	{ STM32F4_RCC_APB2ENR, 23,	"sai2",		"apb2_div" },
+	{ STM32F4_RCC_APB2ENR, 26,	"ltdc",		"apb2_div" },
+	{ STM32F4_RCC_APB2ENR, 30,	"mdio",		"apb2_div" },
+};
+
 /*
  * This bitmask tells us which bit offsets (0..192) on STM32F4[23]xxx
  * have gate bits associated with them. Its combined hweight is 71.
···
 static const u64 stm32f746_gate_map[MAX_GATE_MAP] = { 0x000000f17ef417ffull,
 						      0x0000000000000003ull,
 						      0x04f77f833e01c9ffull };
+
+static const u64 stm32f769_gate_map[MAX_GATE_MAP] = { 0x000000f37ef417ffull,
+						      0x0000000000000003ull,
+						      0x44F77F833E01EDFFull };
 
 static const u64 *stm32f4_gate_map;
 
···
 	"no-clock", "lse", "lsi", "hse-rtc"
 };
 
+static const char *pll_src = "pll-src";
+
+static const char *pllsrc_parent[2] = { "hsi", NULL };
+
 static const char *dsi_parent[2] = { NULL, "pll-r" };
 
 static const char *lcd_parent[1] = { "pllsai-r-div" };
···
 static const char *uart_parents2[4] = { "apb1_div", "sys", "hsi", "lse" };
 
 static const char *i2c_parents[4] = { "apb1_div", "sys", "hsi", "no-clock" };
+
+static const char * const dfsdm1_src[] = { "apb2_div", "sys" };
+static const char * const adsfdm1_parent[] = { "sai1_clk", "sai2_clk" };
 
 struct stm32_aux_clk {
 	int idx;
···
 	},
 };
 
+static const struct stm32_aux_clk stm32f769_aux_clk[] = {
+	{
+		CLK_LCD, "lcd-tft", lcd_parent, ARRAY_SIZE(lcd_parent),
+		NO_MUX, 0, 0,
+		STM32F4_RCC_APB2ENR, 26,
+		CLK_SET_RATE_PARENT
+	},
+	{
+		CLK_I2S, "i2s", i2s_parents, ARRAY_SIZE(i2s_parents),
+		STM32F4_RCC_CFGR, 23, 1,
+		NO_GATE, 0,
+		CLK_SET_RATE_PARENT
+	},
+	{
+		CLK_SAI1, "sai1_clk", sai_parents, ARRAY_SIZE(sai_parents),
+		STM32F4_RCC_DCKCFGR, 20, 3,
+		STM32F4_RCC_APB2ENR, 22,
+		CLK_SET_RATE_PARENT
+	},
+	{
+		CLK_SAI2, "sai2_clk", sai_parents, ARRAY_SIZE(sai_parents),
+		STM32F4_RCC_DCKCFGR, 22, 3,
+		STM32F4_RCC_APB2ENR, 23,
+		CLK_SET_RATE_PARENT
+	},
+	{
+		NO_IDX, "pll48", pll48_parents, ARRAY_SIZE(pll48_parents),
+		STM32F7_RCC_DCKCFGR2, 27, 1,
+		NO_GATE, 0,
+		0
+	},
+	{
+		NO_IDX, "sdmux1", sdmux_parents, ARRAY_SIZE(sdmux_parents),
+		STM32F7_RCC_DCKCFGR2, 28, 1,
+		NO_GATE, 0,
+		0
+	},
+	{
+		NO_IDX, "sdmux2", sdmux_parents, ARRAY_SIZE(sdmux_parents),
+		STM32F7_RCC_DCKCFGR2, 29, 1,
+		NO_GATE, 0,
+		0
+	},
+	{
+		CLK_HDMI_CEC, "hdmi-cec",
+		hdmi_parents, ARRAY_SIZE(hdmi_parents),
+		STM32F7_RCC_DCKCFGR2, 26, 1,
+		NO_GATE, 0,
+		0
+	},
+	{
+		CLK_SPDIF, "spdif-rx",
+		spdif_parent, ARRAY_SIZE(spdif_parent),
+		STM32F7_RCC_DCKCFGR2, 22, 3,
+		STM32F4_RCC_APB2ENR, 23,
+		CLK_SET_RATE_PARENT
+	},
+	{
+		CLK_USART1, "usart1",
+		uart_parents1, ARRAY_SIZE(uart_parents1),
+		STM32F7_RCC_DCKCFGR2, 0, 3,
+		STM32F4_RCC_APB2ENR, 4,
+		CLK_SET_RATE_PARENT,
+	},
+	{
+		CLK_USART2, "usart2",
+		uart_parents2, ARRAY_SIZE(uart_parents1),
+		STM32F7_RCC_DCKCFGR2, 2, 3,
+		STM32F4_RCC_APB1ENR, 17,
+		CLK_SET_RATE_PARENT,
+	},
+	{
+		CLK_USART3, "usart3",
+		uart_parents2, ARRAY_SIZE(uart_parents1),
+		STM32F7_RCC_DCKCFGR2, 4, 3,
+		STM32F4_RCC_APB1ENR, 18,
+		CLK_SET_RATE_PARENT,
+	},
+	{
+		CLK_UART4, "uart4",
+		uart_parents2, ARRAY_SIZE(uart_parents1),
+		STM32F7_RCC_DCKCFGR2, 6, 3,
+		STM32F4_RCC_APB1ENR, 19,
+		CLK_SET_RATE_PARENT,
+	},
+	{
+		CLK_UART5, "uart5",
+		uart_parents2, ARRAY_SIZE(uart_parents1),
+		STM32F7_RCC_DCKCFGR2, 8, 3,
+		STM32F4_RCC_APB1ENR, 20,
+		CLK_SET_RATE_PARENT,
+	},
+	{
+		CLK_USART6, "usart6",
+		uart_parents1, ARRAY_SIZE(uart_parents1),
+		STM32F7_RCC_DCKCFGR2, 10, 3,
+		STM32F4_RCC_APB2ENR, 5,
+		CLK_SET_RATE_PARENT,
+	},
+	{
+		CLK_UART7, "uart7",
+		uart_parents2, ARRAY_SIZE(uart_parents1),
+		STM32F7_RCC_DCKCFGR2, 12, 3,
+		STM32F4_RCC_APB1ENR, 30,
+		CLK_SET_RATE_PARENT,
+	},
+	{
+		CLK_UART8, "uart8",
+		uart_parents2, ARRAY_SIZE(uart_parents1),
+		STM32F7_RCC_DCKCFGR2, 14, 3,
+		STM32F4_RCC_APB1ENR, 31,
+		CLK_SET_RATE_PARENT,
+	},
+	{
+		CLK_I2C1, "i2c1",
+		i2c_parents, ARRAY_SIZE(i2c_parents),
+		STM32F7_RCC_DCKCFGR2, 16, 3,
+		STM32F4_RCC_APB1ENR, 21,
+		CLK_SET_RATE_PARENT,
+	},
+	{
+		CLK_I2C2, "i2c2",
+		i2c_parents, ARRAY_SIZE(i2c_parents),
+		STM32F7_RCC_DCKCFGR2, 18, 3,
+		STM32F4_RCC_APB1ENR, 22,
+		CLK_SET_RATE_PARENT,
+	},
+	{
+		CLK_I2C3, "i2c3",
+		i2c_parents, ARRAY_SIZE(i2c_parents),
+		STM32F7_RCC_DCKCFGR2, 20, 3,
+		STM32F4_RCC_APB1ENR, 23,
+		CLK_SET_RATE_PARENT,
+	},
+	{
+		CLK_I2C4, "i2c4",
+		i2c_parents, ARRAY_SIZE(i2c_parents),
+		STM32F7_RCC_DCKCFGR2, 22, 3,
+		STM32F4_RCC_APB1ENR, 24,
+		CLK_SET_RATE_PARENT,
+	},
+	{
+		CLK_LPTIMER, "lptim1",
+		lptim_parent, ARRAY_SIZE(lptim_parent),
+		STM32F7_RCC_DCKCFGR2, 24, 3,
+		STM32F4_RCC_APB1ENR, 9,
+		CLK_SET_RATE_PARENT
+	},
+	{
+		CLK_F769_DSI, "dsi",
+		dsi_parent, ARRAY_SIZE(dsi_parent),
+		STM32F7_RCC_DCKCFGR2, 0, 1,
+		STM32F4_RCC_APB2ENR, 27,
+		CLK_SET_RATE_PARENT
+	},
+	{
+		CLK_DFSDM1, "dfsdm1",
+		dfsdm1_src, ARRAY_SIZE(dfsdm1_src),
+		STM32F4_RCC_DCKCFGR, 25, 1,
+		STM32F4_RCC_APB2ENR, 29,
+		CLK_SET_RATE_PARENT
+	},
+	{
+		CLK_ADFSDM1, "adfsdm1",
+		adsfdm1_parent, ARRAY_SIZE(adsfdm1_parent),
+		STM32F4_RCC_DCKCFGR, 26, 1,
+		STM32F4_RCC_APB2ENR, 29,
+		CLK_SET_RATE_PARENT
+	},
+};
+
 static const struct stm32f4_clk_data stm32f429_clk_data = {
 	.end_primary	= END_PRIMARY_CLK,
 	.gates_data	= stm32f429_gates,
···
 	.aux_clk_num	= ARRAY_SIZE(stm32f746_aux_clk),
 };
 
+static const struct stm32f4_clk_data stm32f769_clk_data = {
+	.end_primary	= END_PRIMARY_CLK_F7,
+	.gates_data	= stm32f769_gates,
+	.gates_map	= stm32f769_gate_map,
+	.gates_num	= ARRAY_SIZE(stm32f769_gates),
+	.pll_data	= stm32f469_pll,
+	.aux_clk	= stm32f769_aux_clk,
+	.aux_clk_num	= ARRAY_SIZE(stm32f769_aux_clk),
+};
+
 static const struct of_device_id stm32f4_of_match[] = {
 	{
 		.compatible = "st,stm32f42xx-rcc",
···
 	{
 		.compatible = "st,stm32f746-rcc",
 		.data = &stm32f746_clk_data
+	},
+	{
+		.compatible = "st,stm32f769-rcc",
+		.data = &stm32f769_clk_data
 	},
 	{}
 };
···
 	int n;
 	const struct of_device_id *match;
 	const struct stm32f4_clk_data *data;
-	unsigned long pllcfgr;
-	const char *pllsrc;
 	unsigned long pllm;
+	struct clk_hw *pll_src_hw;
 
 	base = of_iomap(np, 0);
 	if (!base) {
···
 
 	hse_clk = of_clk_get_parent_name(np, 0);
 	dsi_parent[0] = hse_clk;
+	pllsrc_parent[1] = hse_clk;
 
 	i2s_in_clk = of_clk_get_parent_name(np, 1);
 
 	i2s_parents[1] = i2s_in_clk;
 	sai_parents[2] = i2s_in_clk;
 
+	if (of_device_is_compatible(np, "st,stm32f769-rcc")) {
+		clk_hw_register_gate(NULL, "dfsdm1_apb", "apb2_div", 0,
+				     base + STM32F4_RCC_APB2ENR, 29,
+				     CLK_IGNORE_UNUSED, &stm32f4_clk_lock);
+		dsi_parent[0] = pll_src;
+		sai_parents[3] = pll_src;
+	}
+
 	clks[CLK_HSI] = clk_hw_register_fixed_rate_with_accuracy(NULL, "hsi",
 			NULL, 0, 16000000, 160000);
 
-	pllcfgr = readl(base + STM32F4_RCC_PLLCFGR);
-	pllsrc = pllcfgr & BIT(22) ? hse_clk : "hsi";
-	pllm = pllcfgr & 0x3f;
+	pll_src_hw = clk_hw_register_mux(NULL, pll_src, pllsrc_parent,
+					 ARRAY_SIZE(pllsrc_parent), 0,
+					 base + STM32F4_RCC_PLLCFGR, 22, 1, 0,
+					 &stm32f4_clk_lock);
 
-	clk_hw_register_fixed_factor(NULL, "vco_in", pllsrc,
-					       0, 1, pllm);
+	pllm = readl(base + STM32F4_RCC_PLLCFGR) & 0x3f;
+
+	clk_hw_register_fixed_factor(NULL, "vco_in", pll_src,
+				     0, 1, pllm);
 
 	stm32f4_rcc_register_pll("vco_in", &data->pll_data[0],
 			&stm32f4_clk_lock);
···
 			clks[aux_clk->idx] = hw;
 	}
 
-	if (of_device_is_compatible(np, "st,stm32f746-rcc"))
+	if (of_device_is_compatible(np, "st,stm32f746-rcc")) {
 
 		clk_hw_register_fixed_factor(NULL, "hsi_div488", "hsi", 0,
 				1, 488);
 
+		clks[CLK_PLL_SRC] = pll_src_hw;
+	}
+
 	of_clk_add_hw_provider(np, stm32f4_rcc_lookup_clk, NULL);
+
 	return;
 fail:
 	kfree(clks);
···
 CLK_OF_DECLARE_DRIVER(stm32f42xx_rcc, "st,stm32f42xx-rcc", stm32f4_rcc_init);
 CLK_OF_DECLARE_DRIVER(stm32f46xx_rcc, "st,stm32f469-rcc", stm32f4_rcc_init);
 CLK_OF_DECLARE_DRIVER(stm32f746_rcc, "st,stm32f746-rcc", stm32f4_rcc_init);
+CLK_OF_DECLARE_DRIVER(stm32f769_rcc, "st,stm32f769-rcc", stm32f4_rcc_init);

drivers/clk/clk-stm32mp1.c

···
 	G_CRYP1,
 	G_HASH1,
 	G_BKPSRAM,
+	G_DDRPERFM,
 
 	G_LAST
 };
···
 	K_GATE(G_STGENRO,	RCC_APB4ENSETR, 20, 0),
 	K_MGATE(G_USBPHY,	RCC_APB4ENSETR, 16, 0),
 	K_GATE(G_IWDG2,		RCC_APB4ENSETR, 15, 0),
+	K_GATE(G_DDRPERFM,	RCC_APB4ENSETR, 8, 0),
 	K_MGATE(G_DSI,		RCC_APB4ENSETR, 4, 0),
 	K_MGATE(G_LTDC,		RCC_APB4ENSETR, 0, 0),
 
···
 	PCLK(CRC1, "crc1", "ck_axi", 0, G_CRC1),
 	PCLK(USBH, "usbh", "ck_axi", 0, G_USBH),
 	PCLK(ETHSTP, "ethstp", "ck_axi", 0, G_ETHSTP),
+	PCLK(DDRPERFM, "ddrperfm", "pclk4", 0, G_DDRPERFM),
 
 	/* Kernel clocks */
 	KCLK(SDMMC1_K, "sdmmc1_k", sdmmc12_src, 0, G_SDMMC1, M_SDMMC12),

drivers/clk/davinci/pll.h

···
-// SPDX-License-Identifier: GPL-2.0
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * Clock driver for TI Davinci PSC controllers
  *

drivers/clk/davinci/psc.h

···
-// SPDX-License-Identifier: GPL-2.0
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * Clock driver for TI Davinci PSC controllers
  *

drivers/clk/qcom/clk-regmap-mux-div.h

···
-// SPDX-License-Identifier: GPL-2.0
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * Copyright (c) 2017, Linaro Limited
  * Author: Georgi Djakov <[e-mail]>

drivers/clk/renesas/rcar-gen2-cpg.h

···
-/* SPDX-License-Identifier: GPL-2.0
- *
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
  * R-Car Gen2 Clock Pulse Generator
  *
  * Copyright (C) 2016 Cogent Embedded Inc.

drivers/clk/renesas/rcar-gen3-cpg.h

···
-/* SPDX-License-Identifier: GPL-2.0
- *
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
  * R-Car Gen3 Clock Pulse Generator
  *
  * Copyright (C) 2015-2018 Glider bvba

drivers/clk/renesas/renesas-cpg-mssr.h

···
-/* SPDX-License-Identifier: GPL-2.0
- *
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
  * Renesas Clock Pulse Generator / Module Standby and Software Reset
  *
  * Copyright (C) 2015 Glider bvba

drivers/clk/sifive/Kconfig

···
+# SPDX-License-Identifier: GPL-2.0
+
+menuconfig CLK_SIFIVE
+	bool "SiFive SoC driver support"
+	help
+	  SoC drivers for SiFive Linux-capable SoCs.
+
+if CLK_SIFIVE
+
+config CLK_SIFIVE_FU540_PRCI
+	bool "PRCI driver for SiFive FU540 SoCs"
+	select CLK_ANALOGBITS_WRPLL_CLN28HPC
+	help
+	  Supports the Power Reset Clock interface (PRCI) IP block found in
+	  FU540 SoCs.  If this kernel is meant to run on a SiFive FU540 SoC,
+	  enable this driver.
+
+endif

drivers/clk/sifive/Makefile

···
+obj-$(CONFIG_CLK_SIFIVE_FU540_PRCI)	+= fu540-prci.o

drivers/clk/sifive/fu540-prci.c

···
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Copyright (C) 2018-2019 SiFive, Inc.
+ * Wesley Terpstra
+ * Paul Walmsley
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * The FU540 PRCI implements clock and reset control for the SiFive
+ * FU540-C000 chip.  This driver assumes that it has sole control
+ * over all PRCI resources.
+ *
+ * This driver is based on the PRCI driver written by Wesley Terpstra:
+ * https://github.com/riscv/riscv-linux/commit/999529edf517ed75b56659d456d221b2ee56bb60
+ *
+ * References:
+ * - SiFive FU540-C000 manual v1p0, Chapter 7 "Clocking and Reset"
+ */
+
+#include <dt-bindings/clock/sifive-fu540-prci.h>
+#include <linux/clkdev.h>
+#include <linux/clk-provider.h>
+#include <linux/clk/analogbits-wrpll-cln28hpc.h>
+#include <linux/delay.h>
+#include <linux/err.h>
+#include <linux/module.h>
+#include <linux/of.h>
+#include <linux/of_clk.h>
+#include <linux/platform_device.h>
+#include <linux/slab.h>
+
+/*
+ * EXPECTED_CLK_PARENT_COUNT: how many parent clocks this driver expects:
+ *     hfclk and rtcclk
+ */
+#define EXPECTED_CLK_PARENT_COUNT		2
+
+/*
+ * Register offsets and bitmasks
+ */
+
+/* COREPLLCFG0 */
+#define PRCI_COREPLLCFG0_OFFSET			0x4
+# define PRCI_COREPLLCFG0_DIVR_SHIFT		0
+# define PRCI_COREPLLCFG0_DIVR_MASK		(0x3f << PRCI_COREPLLCFG0_DIVR_SHIFT)
+# define PRCI_COREPLLCFG0_DIVF_SHIFT		6
+# define PRCI_COREPLLCFG0_DIVF_MASK		(0x1ff << PRCI_COREPLLCFG0_DIVF_SHIFT)
+# define PRCI_COREPLLCFG0_DIVQ_SHIFT		15
+# define PRCI_COREPLLCFG0_DIVQ_MASK		(0x7 << PRCI_COREPLLCFG0_DIVQ_SHIFT)
+# define PRCI_COREPLLCFG0_RANGE_SHIFT		18
+# define PRCI_COREPLLCFG0_RANGE_MASK		(0x7 << PRCI_COREPLLCFG0_RANGE_SHIFT)
+# define PRCI_COREPLLCFG0_BYPASS_SHIFT		24
+# define PRCI_COREPLLCFG0_BYPASS_MASK		(0x1 << PRCI_COREPLLCFG0_BYPASS_SHIFT)
+# define PRCI_COREPLLCFG0_FSE_SHIFT		25
+# define PRCI_COREPLLCFG0_FSE_MASK		(0x1 << PRCI_COREPLLCFG0_FSE_SHIFT)
+# define PRCI_COREPLLCFG0_LOCK_SHIFT		31
+# define PRCI_COREPLLCFG0_LOCK_MASK		(0x1 << PRCI_COREPLLCFG0_LOCK_SHIFT)
+
+/* DDRPLLCFG0 */
+#define PRCI_DDRPLLCFG0_OFFSET			0xc
+# define PRCI_DDRPLLCFG0_DIVR_SHIFT		0
+# define PRCI_DDRPLLCFG0_DIVR_MASK		(0x3f << PRCI_DDRPLLCFG0_DIVR_SHIFT)
+# define PRCI_DDRPLLCFG0_DIVF_SHIFT		6
+# define PRCI_DDRPLLCFG0_DIVF_MASK		(0x1ff << PRCI_DDRPLLCFG0_DIVF_SHIFT)
+# define PRCI_DDRPLLCFG0_DIVQ_SHIFT		15
+# define PRCI_DDRPLLCFG0_DIVQ_MASK		(0x7 << PRCI_DDRPLLCFG0_DIVQ_SHIFT)
+# define PRCI_DDRPLLCFG0_RANGE_SHIFT		18
+# define PRCI_DDRPLLCFG0_RANGE_MASK		(0x7 << PRCI_DDRPLLCFG0_RANGE_SHIFT)
+# define PRCI_DDRPLLCFG0_BYPASS_SHIFT		24
+# define PRCI_DDRPLLCFG0_BYPASS_MASK		(0x1 << PRCI_DDRPLLCFG0_BYPASS_SHIFT)
+# define PRCI_DDRPLLCFG0_FSE_SHIFT		25
+# define PRCI_DDRPLLCFG0_FSE_MASK		(0x1 << PRCI_DDRPLLCFG0_FSE_SHIFT)
+# define PRCI_DDRPLLCFG0_LOCK_SHIFT		31
+# define PRCI_DDRPLLCFG0_LOCK_MASK		(0x1 << PRCI_DDRPLLCFG0_LOCK_SHIFT)
+
+/* DDRPLLCFG1 */
+#define PRCI_DDRPLLCFG1_OFFSET			0x10
+# define PRCI_DDRPLLCFG1_CKE_SHIFT		24
+# define PRCI_DDRPLLCFG1_CKE_MASK		(0x1 << PRCI_DDRPLLCFG1_CKE_SHIFT)
+
+/* GEMGXLPLLCFG0 */
+#define PRCI_GEMGXLPLLCFG0_OFFSET		0x1c
+# define PRCI_GEMGXLPLLCFG0_DIVR_SHIFT		0
+# define PRCI_GEMGXLPLLCFG0_DIVR_MASK		(0x3f << PRCI_GEMGXLPLLCFG0_DIVR_SHIFT)
+# define PRCI_GEMGXLPLLCFG0_DIVF_SHIFT		6
+# define PRCI_GEMGXLPLLCFG0_DIVF_MASK		(0x1ff << PRCI_GEMGXLPLLCFG0_DIVF_SHIFT)
+# define PRCI_GEMGXLPLLCFG0_DIVQ_SHIFT		15
+# define PRCI_GEMGXLPLLCFG0_DIVQ_MASK		(0x7 << PRCI_GEMGXLPLLCFG0_DIVQ_SHIFT)
+# define PRCI_GEMGXLPLLCFG0_RANGE_SHIFT		18
+# define PRCI_GEMGXLPLLCFG0_RANGE_MASK		(0x7 << PRCI_GEMGXLPLLCFG0_RANGE_SHIFT)
+# define PRCI_GEMGXLPLLCFG0_BYPASS_SHIFT	24
+# define PRCI_GEMGXLPLLCFG0_BYPASS_MASK		(0x1 << PRCI_GEMGXLPLLCFG0_BYPASS_SHIFT)
+# define PRCI_GEMGXLPLLCFG0_FSE_SHIFT		25
+# define PRCI_GEMGXLPLLCFG0_FSE_MASK		(0x1 << PRCI_GEMGXLPLLCFG0_FSE_SHIFT)
+# define PRCI_GEMGXLPLLCFG0_LOCK_SHIFT		31
+# define PRCI_GEMGXLPLLCFG0_LOCK_MASK		(0x1 << PRCI_GEMGXLPLLCFG0_LOCK_SHIFT)
+
+/* GEMGXLPLLCFG1 */
+#define PRCI_GEMGXLPLLCFG1_OFFSET		0x20
+# define PRCI_GEMGXLPLLCFG1_CKE_SHIFT		24
+# define PRCI_GEMGXLPLLCFG1_CKE_MASK		(0x1 << PRCI_GEMGXLPLLCFG1_CKE_SHIFT)
+
+/* CORECLKSEL */
+#define PRCI_CORECLKSEL_OFFSET			0x24
+# define PRCI_CORECLKSEL_CORECLKSEL_SHIFT	0
+# define PRCI_CORECLKSEL_CORECLKSEL_MASK	(0x1 << PRCI_CORECLKSEL_CORECLKSEL_SHIFT)
+
+/* DEVICESRESETREG */
+#define PRCI_DEVICESRESETREG_OFFSET			0x28
+# define PRCI_DEVICESRESETREG_DDR_CTRL_RST_N_SHIFT	0
+# define PRCI_DEVICESRESETREG_DDR_CTRL_RST_N_MASK	(0x1 << PRCI_DEVICESRESETREG_DDR_CTRL_RST_N_SHIFT)
+# define PRCI_DEVICESRESETREG_DDR_AXI_RST_N_SHIFT	1
+# define PRCI_DEVICESRESETREG_DDR_AXI_RST_N_MASK	(0x1 << PRCI_DEVICESRESETREG_DDR_AXI_RST_N_SHIFT)
+# define PRCI_DEVICESRESETREG_DDR_AHB_RST_N_SHIFT	2
+# define PRCI_DEVICESRESETREG_DDR_AHB_RST_N_MASK	(0x1 << PRCI_DEVICESRESETREG_DDR_AHB_RST_N_SHIFT)
+# define PRCI_DEVICESRESETREG_DDR_PHY_RST_N_SHIFT	3
+# define PRCI_DEVICESRESETREG_DDR_PHY_RST_N_MASK	(0x1 << PRCI_DEVICESRESETREG_DDR_PHY_RST_N_SHIFT)
+# define PRCI_DEVICESRESETREG_GEMGXL_RST_N_SHIFT	5
+# define PRCI_DEVICESRESETREG_GEMGXL_RST_N_MASK		(0x1 << PRCI_DEVICESRESETREG_GEMGXL_RST_N_SHIFT)
+
+/* CLKMUXSTATUSREG */
+#define PRCI_CLKMUXSTATUSREG_OFFSET			0x2c
+# define PRCI_CLKMUXSTATUSREG_TLCLKSEL_STATUS_SHIFT	1
+# define PRCI_CLKMUXSTATUSREG_TLCLKSEL_STATUS_MASK	(0x1 << PRCI_CLKMUXSTATUSREG_TLCLKSEL_STATUS_SHIFT)
+
+/*
+ * Private structures
+ */
+
+/**
+ * struct __prci_data - per-device-instance data
+ * @va: base virtual address of the PRCI IP block
+ * @hw_clks: encapsulates struct clk_hw records
+ *
+ * PRCI per-device instance data
+ */
+struct __prci_data {
+	void __iomem *va;
+	struct clk_hw_onecell_data hw_clks;
+};
+
+/**
+ * struct __prci_wrpll_data - WRPLL configuration and integration data
+ * @c: WRPLL current configuration record
+ * @enable_bypass: fn ptr to code to bypass the WRPLL (if applicable; else NULL)
+ * @disable_bypass: fn ptr to code to not bypass the WRPLL (or NULL)
+ * @cfg0_offs: WRPLL CFG0 register offset (in bytes) from the PRCI base address
+ *
+ * @enable_bypass and @disable_bypass are used for WRPLL instances
+ * that contain a separate external glitchless clock mux downstream
+ * from the PLL.  The WRPLL internal bypass mux is not glitchless.
+ */
+struct __prci_wrpll_data {
+	struct wrpll_cfg c;
+	void (*enable_bypass)(struct __prci_data *pd);
+	void (*disable_bypass)(struct __prci_data *pd);
+	u8 cfg0_offs;
+};
+
+/**
+ * struct __prci_clock - describes a clock device managed by PRCI
+ * @name: user-readable clock name string - should match the manual
+ * @parent_name: parent name for this clock
+ * @ops: struct clk_ops for the Linux clock framework to use for control
+ * @hw: Linux-private clock data
+ * @pwd: WRPLL-specific data, associated with this clock (if not NULL)
+ * @pd: PRCI-specific data associated with this clock (if not NULL)
+ *
+ * PRCI clock data.  Used by the PRCI driver to register PRCI-provided
+ * clocks to the Linux clock infrastructure.
+ */
+struct __prci_clock {
+	const char *name;
+	const char *parent_name;
+	const struct clk_ops *ops;
+	struct clk_hw hw;
+	struct __prci_wrpll_data *pwd;
+	struct __prci_data *pd;
+};
+
+#define clk_hw_to_prci_clock(pwd) container_of(pwd, struct __prci_clock, hw)
+
+/*
+ * Private functions
+ */
+
+/**
+ * __prci_readl() - read from a PRCI register
+ * @pd: PRCI context
+ * @offs: register offset to read from (in bytes, from PRCI base address)
+ *
+ * Read the register located at offset @offs from the base virtual
+ * address of the PRCI register target described by @pd, and return
+ * the value to the caller.
+ *
+ * Context: Any context.
+ *
+ * Return: the contents of the register described by @pd and @offs.
+ */
+static u32 __prci_readl(struct __prci_data *pd, u32 offs)
+{
+	return readl_relaxed(pd->va + offs);
+}
+
+static void __prci_writel(u32 v, u32 offs, struct __prci_data *pd)
+{
+	writel_relaxed(v, pd->va + offs);
+}
+
+/* WRPLL-related private functions */
+
+/**
+ * __prci_wrpll_unpack() - unpack WRPLL configuration registers into parameters
+ * @c: ptr to a struct wrpll_cfg record to write config into
+ * @r: value read from the PRCI PLL configuration register
+ *
+ * Given a value @r read from an FU540 PRCI PLL configuration register,
+ * split it into fields and populate it into the WRPLL configuration record
+ * pointed to by @c.
+ *
+ * The COREPLLCFG0 macros are used below, but the other *PLLCFG0 macros
+ * have the same register layout.
+ *
+ * Context: Any context.
+ */
+static void __prci_wrpll_unpack(struct wrpll_cfg *c, u32 r)
+{
+	u32 v;
+
+	v = r & PRCI_COREPLLCFG0_DIVR_MASK;
+	v >>= PRCI_COREPLLCFG0_DIVR_SHIFT;
+	c->divr = v;
+
+	v = r & PRCI_COREPLLCFG0_DIVF_MASK;
+	v >>= PRCI_COREPLLCFG0_DIVF_SHIFT;
+	c->divf = v;
+
+	v = r & PRCI_COREPLLCFG0_DIVQ_MASK;
+	v >>= PRCI_COREPLLCFG0_DIVQ_SHIFT;
+	c->divq = v;
+
+	v = r & PRCI_COREPLLCFG0_RANGE_MASK;
+	v >>= PRCI_COREPLLCFG0_RANGE_SHIFT;
+	c->range = v;
+
+	c->flags &= (WRPLL_FLAGS_INT_FEEDBACK_MASK |
+		     WRPLL_FLAGS_EXT_FEEDBACK_MASK);
+
+	/* external feedback mode not supported */
+	c->flags |= WRPLL_FLAGS_INT_FEEDBACK_MASK;
+}
+
+/**
+ * __prci_wrpll_pack() - pack PLL configuration parameters into a register value
+ * @c: pointer to a struct wrpll_cfg record containing the PLL's cfg
+ *
+ * Using a set of WRPLL configuration values pointed to by @c,
+ * assemble a PRCI PLL configuration register value, and return it to
+ * the caller.
+ *
+ * Context: Any context.  Caller must ensure that the contents of the
+ *          record pointed to by @c do not change during the execution
+ *          of this function.
+ *
+ * Returns: a value suitable for writing into a PRCI PLL configuration
+ *          register
+ */
+static u32 __prci_wrpll_pack(const struct wrpll_cfg *c)
+{
+	u32 r = 0;
+
+	r |= c->divr << PRCI_COREPLLCFG0_DIVR_SHIFT;
+	r |= c->divf << PRCI_COREPLLCFG0_DIVF_SHIFT;
+	r |= c->divq << PRCI_COREPLLCFG0_DIVQ_SHIFT;
+	r |= c->range << PRCI_COREPLLCFG0_RANGE_SHIFT;
+
+	/* external feedback mode not supported */
+	r |= PRCI_COREPLLCFG0_FSE_MASK;
+
+	return r;
+}
+
+/**
+ * __prci_wrpll_read_cfg() - read the WRPLL configuration from the PRCI
+ * @pd: PRCI context
+ * @pwd: PRCI WRPLL metadata
+ *
+ * Read the current configuration of the PLL identified by @pwd from
+ * the PRCI identified by @pd, and store it into the local configuration
+ * cache in @pwd.
+ *
+ * Context: Any context.  Caller must prevent the records pointed to by
+ *          @pd and @pwd from changing during execution.
+ */
+static void __prci_wrpll_read_cfg(struct __prci_data *pd,
+				  struct __prci_wrpll_data *pwd)
+{
+	__prci_wrpll_unpack(&pwd->c, __prci_readl(pd, pwd->cfg0_offs));
+}
+
+/**
+ * __prci_wrpll_write_cfg() - write WRPLL configuration into the PRCI
+ * @pd: PRCI context
+ * @pwd: PRCI WRPLL metadata
+ * @c: WRPLL configuration record to write
+ *
+ * Write the WRPLL configuration described by @c into the WRPLL
+ * configuration register identified by @pwd in the PRCI instance
+ * described by @c.  Make a cached copy of the WRPLL's current
+ * configuration so it can be used by other code.
+ *
+ * Context: Any context.  Caller must prevent the records pointed to by
+ *          @pd and @pwd from changing during execution.
+ */
+static void __prci_wrpll_write_cfg(struct __prci_data *pd,
+				   struct __prci_wrpll_data *pwd,
+				   struct wrpll_cfg *c)
+{
+	__prci_writel(__prci_wrpll_pack(c), pwd->cfg0_offs, pd);
+
+	memcpy(&pwd->c, c, sizeof(*c));
+}
+
+/* Core clock mux control */
+
+/**
+ * __prci_coreclksel_use_hfclk() - switch the CORECLK mux to output HFCLK
+ * @pd: struct __prci_data * for the PRCI containing the CORECLK mux reg
+ *
+ * Switch the CORECLK mux to the HFCLK input source; return once complete.
+ *
+ * Context: Any context.  Caller must prevent concurrent changes to the
+ *          PRCI_CORECLKSEL_OFFSET register.
+ */
+static void __prci_coreclksel_use_hfclk(struct __prci_data *pd)
+{
+	u32 r;
+
+	r = __prci_readl(pd, PRCI_CORECLKSEL_OFFSET);
+	r |= PRCI_CORECLKSEL_CORECLKSEL_MASK;
+	__prci_writel(r, PRCI_CORECLKSEL_OFFSET, pd);
+
+	r = __prci_readl(pd, PRCI_CORECLKSEL_OFFSET); /* barrier */
+}
+
+/**
+ * __prci_coreclksel_use_corepll() - switch the CORECLK mux to output COREPLL
+ * @pd: struct __prci_data * for the PRCI containing the CORECLK mux reg
+ *
+ * Switch the CORECLK mux to the PLL output clock; return once complete.
+ *
+ * Context: Any context.  Caller must prevent concurrent changes to the
+ *          PRCI_CORECLKSEL_OFFSET register.
+ */
+static void __prci_coreclksel_use_corepll(struct __prci_data *pd)
+{
+	u32 r;
+
+	r = __prci_readl(pd, PRCI_CORECLKSEL_OFFSET);
+	r &= ~PRCI_CORECLKSEL_CORECLKSEL_MASK;
+	__prci_writel(r, PRCI_CORECLKSEL_OFFSET, pd);
+
+	r = __prci_readl(pd, PRCI_CORECLKSEL_OFFSET); /* barrier */
+}
+
+/*
+ * Linux clock framework integration
+ *
+ * See the Linux clock framework documentation for more information on
+ * these functions.
+ */
+
+static unsigned long sifive_fu540_prci_wrpll_recalc_rate(struct clk_hw *hw,
+							 unsigned long parent_rate)
+{
+	struct __prci_clock *pc = clk_hw_to_prci_clock(hw);
+	struct __prci_wrpll_data *pwd = pc->pwd;
+
+	return wrpll_calc_output_rate(&pwd->c, parent_rate);
+}
+
+static long sifive_fu540_prci_wrpll_round_rate(struct clk_hw *hw,
+					       unsigned long rate,
+					       unsigned long *parent_rate)
+{
+	struct __prci_clock *pc = clk_hw_to_prci_clock(hw);
+	struct __prci_wrpll_data *pwd = pc->pwd;
+	struct wrpll_cfg c;
+
+	memcpy(&c, &pwd->c, sizeof(c));
+
+	wrpll_configure_for_rate(&c, rate, *parent_rate);
+
+	return wrpll_calc_output_rate(&c, *parent_rate);
+}
+
+static int sifive_fu540_prci_wrpll_set_rate(struct clk_hw *hw,
+					    unsigned long rate,
+					    unsigned long parent_rate)
+{
+	struct __prci_clock *pc = clk_hw_to_prci_clock(hw);
+	struct __prci_wrpll_data *pwd = pc->pwd;
+	struct __prci_data *pd = pc->pd;
+	int r;
+
+	r = wrpll_configure_for_rate(&pwd->c, rate, parent_rate);
+	if (r)
+		return r;
+
+	if (pwd->enable_bypass)
+		pwd->enable_bypass(pd);
+
+	__prci_wrpll_write_cfg(pd, pwd, &pwd->c);
+
+	udelay(wrpll_calc_max_lock_us(&pwd->c));
+
+	if (pwd->disable_bypass)
+		pwd->disable_bypass(pd);
+
+	return 0;
+}
+
+static const struct clk_ops sifive_fu540_prci_wrpll_clk_ops = {
+	.set_rate = sifive_fu540_prci_wrpll_set_rate,
+	.round_rate = sifive_fu540_prci_wrpll_round_rate,
+	.recalc_rate = sifive_fu540_prci_wrpll_recalc_rate,
+};
+
+static const struct clk_ops sifive_fu540_prci_wrpll_ro_clk_ops = {
+	.recalc_rate = sifive_fu540_prci_wrpll_recalc_rate,
+};
+
+/* TLCLKSEL clock integration */
+
+static unsigned long sifive_fu540_prci_tlclksel_recalc_rate(struct clk_hw *hw,
+							    unsigned long parent_rate)
+{
+	struct __prci_clock *pc = clk_hw_to_prci_clock(hw);
+	struct __prci_data *pd = pc->pd;
+	u32 v;
+	u8 div;
+
+	v = __prci_readl(pd, PRCI_CLKMUXSTATUSREG_OFFSET);
+	v &= PRCI_CLKMUXSTATUSREG_TLCLKSEL_STATUS_MASK;
+	div = v ? 1 : 2;
+
+	return div_u64(parent_rate, div);
+}
+
+static const struct clk_ops sifive_fu540_prci_tlclksel_clk_ops = {
+	.recalc_rate = sifive_fu540_prci_tlclksel_recalc_rate,
+};
+
+/*
+ * PRCI integration data for each WRPLL instance
+ */
+
+static struct __prci_wrpll_data __prci_corepll_data = {
+	.cfg0_offs = PRCI_COREPLLCFG0_OFFSET,
+	.enable_bypass = __prci_coreclksel_use_hfclk,
+	.disable_bypass = __prci_coreclksel_use_corepll,
+};
+
+static struct __prci_wrpll_data __prci_ddrpll_data = {
+	.cfg0_offs = PRCI_DDRPLLCFG0_OFFSET,
+};
+
+static struct __prci_wrpll_data __prci_gemgxlpll_data = {
+	.cfg0_offs = PRCI_GEMGXLPLLCFG0_OFFSET,
+};
+
+/*
+ * List of clock controls provided by the PRCI
+ */
+
+static struct __prci_clock __prci_init_clocks[] = {
+	[PRCI_CLK_COREPLL] = {
+		.name = "corepll",
+		.parent_name = "hfclk",
+		.ops = &sifive_fu540_prci_wrpll_clk_ops,
+		.pwd = &__prci_corepll_data,
+	},
+	[PRCI_CLK_DDRPLL] = {
+		.name = "ddrpll",
+		.parent_name = "hfclk",
+		.ops = &sifive_fu540_prci_wrpll_ro_clk_ops,
+		.pwd = &__prci_ddrpll_data,
+	},
+	[PRCI_CLK_GEMGXLPLL] = {
+		.name = "gemgxlpll",
+		.parent_name = "hfclk",
+		.ops = &sifive_fu540_prci_wrpll_clk_ops,
+		.pwd = &__prci_gemgxlpll_data,
+	},
+	[PRCI_CLK_TLCLK] = {
+		.name = "tlclk",
+		.parent_name = "corepll",
+		.ops = &sifive_fu540_prci_tlclksel_clk_ops,
+	},
+};
+
+/**
+ * __prci_register_clocks() - register clock controls in the PRCI with Linux
+ * @dev: Linux struct device *
+ *
+ * Register the list of clock controls described in __prci_init_plls[] with
+ * the Linux clock framework.
+ *
+ * Return: 0 upon success or a negative error code upon failure.
+ */
+static int __prci_register_clocks(struct device *dev, struct __prci_data *pd)
+{
+	struct clk_init_data init = { };
+	struct __prci_clock *pic;
+	int parent_count, i, r;
+
+	parent_count = of_clk_get_parent_count(dev->of_node);
+	if (parent_count != EXPECTED_CLK_PARENT_COUNT) {
+		dev_err(dev, "expected only two parent clocks, found %d\n",
+			parent_count);
+		return -EINVAL;
+	}
+
+	/* Register PLLs */
+	for (i = 0; i < ARRAY_SIZE(__prci_init_clocks); ++i) {
+		pic = &__prci_init_clocks[i];
+
+		init.name = pic->name;
+		init.parent_names = &pic->parent_name;
+		init.num_parents = 1;
+		init.ops = pic->ops;
+		pic->hw.init = &init;
+
+		pic->pd = pd;
+
+		if (pic->pwd)
+			__prci_wrpll_read_cfg(pd, pic->pwd);
+
+		r = devm_clk_hw_register(dev, &pic->hw);
+		if (r) {
+			dev_warn(dev, "Failed to register clock %s: %d\n",
+				 init.name, r);
+			return r;
+		}
+
+		r = clk_hw_register_clkdev(&pic->hw, pic->name, dev_name(dev));
+		if (r) {
+			dev_warn(dev, "Failed to register clkdev for %s: %d\n",
+				 init.name, r);
+			return r;
+		}
+
+		pd->hw_clks.hws[i] = &pic->hw;
+	}
+
+	pd->hw_clks.num = i;
+
+	r = devm_of_clk_add_hw_provider(dev, of_clk_hw_onecell_get,
+					&pd->hw_clks);
+	if (r) {
+		dev_err(dev, "could not add hw_provider: %d\n", r);
+		return r;
+	}
+
+	return 0;
+}
+
+/*
+ * Linux device model integration
+ *
+ * See the Linux device model documentation for more information about
+ * these functions.
+ */
+static int sifive_fu540_prci_probe(struct platform_device *pdev)
+{
+	struct device *dev = &pdev->dev;
+	struct resource *res;
+	struct __prci_data *pd;
+	int r;
+
+	pd = devm_kzalloc(dev, sizeof(*pd), GFP_KERNEL);
+	if (!pd)
+		return -ENOMEM;
+
+	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+	pd->va = devm_ioremap_resource(dev, res);
+	if (IS_ERR(pd->va))
+		return PTR_ERR(pd->va);
+
+	r = __prci_register_clocks(dev, pd);
+	if (r) {
+		dev_err(dev, "could not register clocks: %d\n", r);
+		return r;
+	}
+
+	dev_dbg(dev, "SiFive FU540 PRCI probed\n");
+
+	return 0;
+}
+
+static const struct of_device_id sifive_fu540_prci_of_match[] = {
+	{ .compatible = "sifive,fu540-c000-prci", },
+	{}
+};
+MODULE_DEVICE_TABLE(of, sifive_fu540_prci_of_match);
+
+static struct platform_driver sifive_fu540_prci_driver = {
+	.driver	= {
+		.name = "sifive-fu540-prci",
+		.of_match_table = sifive_fu540_prci_of_match,
+	},
+	.probe = sifive_fu540_prci_probe,
+};
+
+static int __init sifive_fu540_prci_init(void)
+{
+	return platform_driver_register(&sifive_fu540_prci_driver);
+}
+core_initcall(sifive_fu540_prci_init);

drivers/clk/sprd/common.h

···
-// SPDX-License-Identifier: GPL-2.0
+/* SPDX-License-Identifier: GPL-2.0 */
 //
 // Spreadtrum clock infrastructure
 //

drivers/clk/sprd/composite.h

···
-// SPDX-License-Identifier: GPL-2.0
+/* SPDX-License-Identifier: GPL-2.0 */
 //
 // Spreadtrum composite clock driver
 //

drivers/clk/sprd/div.h

···
-// SPDX-License-Identifier: GPL-2.0
+/* SPDX-License-Identifier: GPL-2.0 */
 //
 // Spreadtrum divider clock driver
 //

drivers/clk/sprd/gate.h

···
-// SPDX-License-Identifier: GPL-2.0
+/* SPDX-License-Identifier: GPL-2.0 */
 //
 // Spreadtrum gate clock driver
 //

drivers/clk/sprd/mux.h

···
-// SPDX-License-Identifier: GPL-2.0
+/* SPDX-License-Identifier: GPL-2.0 */
 //
 // Spreadtrum multiplexer clock driver
 //

drivers/clk/sprd/pll.h

···
-// SPDX-License-Identifier: GPL-2.0
+/* SPDX-License-Identifier: GPL-2.0 */
 //
 // Spreadtrum pll clock driver
 //

drivers/clk/sunxi-ng/ccu-sun50i-h6.h

···
-// SPDX-License-Identifier: GPL-2.0
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * Copyright 2016 Icenowy Zheng <[e-mail]>
  */

drivers/clk/sunxi-ng/ccu-suniv-f1c100s.h

···
-/* SPDX-License-Identifier: GPL-2.0+
- *
+/* SPDX-License-Identifier: GPL-2.0+ */
+/*
  * Copyright 2017 Icenowy Zheng <[e-mail]>
  *
  */

drivers/clk/tegra/clk-divider.c

···
 				  void __iomem *reg, spinlock_t *lock)
 {
 	return clk_register_divider_table(NULL, name, parent_name,
-					  CLK_IS_CRITICAL, reg, 16, 1, 0,
+					  CLK_IS_CRITICAL,
+					  reg, 16, 1, CLK_DIVIDER_READ_ONLY,
 					  mc_div_table, lock);
 }

drivers/clk/tegra/clk-emc.c

···
 	struct tegra_clk_emc *tegra;
 	u8 ram_code = tegra_read_ram_code();
 	struct emc_timing *timing = NULL;
-	int i;
+	int i, k, t;
 
 	tegra = container_of(hw, struct tegra_clk_emc, hw);
 
-	for (i = 0; i < tegra->num_timings; i++) {
-		if (tegra->timings[i].ram_code != ram_code)
-			continue;
+	for (k = 0; k < tegra->num_timings; k++) {
+		if (tegra->timings[k].ram_code == ram_code)
+			break;
+	}
 
+	for (t = k; t < tegra->num_timings; t++) {
+		if (tegra->timings[t].ram_code != ram_code)
+			break;
+	}
+
+	for (i = k; i < t; i++) {
 		timing = tegra->timings + i;
 
+		if (timing->rate < req->rate && i != t - 1)
+			continue;
+
 		if (timing->rate > req->max_rate) {
-			i = max(i, 1);
+			i = max(i, k + 1);
 			req->rate = tegra->timings[i - 1].rate;
 			return 0;
 		}
···
 		if (timing->rate < req->min_rate)
 			continue;
 
-		if (timing->rate >= req->rate) {
-			req->rate = timing->rate;
-			return 0;
-		}
+		req->rate = timing->rate;
+		return 0;
 	}
 
 	if (timing) {
···
 
 	if (emc_get_parent(&tegra->hw) == timing->parent_index &&
 	    clk_get_rate(timing->parent) != timing->parent_rate) {
-		BUG();
+		WARN_ONCE(1, "parent %s rate mismatch %lu %lu\n",
+			  __clk_get_name(timing->parent),
+			  clk_get_rate(timing->parent),
+			  timing->parent_rate);
 		return -EINVAL;
 	}
 
···
 	for (i = timing_index+1; i < tegra->num_timings; i++) {
 		timing = tegra->timings + i;
 		if (timing->ram_code != ram_code)
-			continue;
+			break;
 
 		if (emc_parent_clk_sources[timing->parent_index] !=
 		    emc_parent_clk_sources[
···
 	for (i = timing_index-1; i >= 0; --i) {
 		timing = tegra->timings + i;
 		if (timing->ram_code != ram_code)
-			continue;
+			break;
 
 		if (emc_parent_clk_sources[timing->parent_index] !=
 		    emc_parent_clk_sources[
···
 				struct device_node *node,
 				u32 ram_code)
 {
+	struct emc_timing *timings_ptr;
 	struct device_node *child;
 	int child_count = of_get_child_count(node);
 	int i = 0, err;
+	size_t size;
 
-	tegra->timings = kcalloc(child_count, sizeof(struct emc_timing),
-				 GFP_KERNEL);
+	size = (tegra->num_timings + child_count) * sizeof(struct emc_timing);
+
+	tegra->timings = krealloc(tegra->timings, size, GFP_KERNEL);
 	if (!tegra->timings)
 		return -ENOMEM;
 
-	tegra->num_timings = child_count;
+	timings_ptr = tegra->timings + tegra->num_timings;
+	tegra->num_timings += child_count;
 
 	for_each_child_of_node(node, child) {
-		struct emc_timing *timing = tegra->timings + (i++);
+		struct emc_timing *timing = timings_ptr + (i++);
 
 		err = load_one_timing_from_dt(tegra, timing, child);
 		if (err) {
···
 		timing->ram_code = ram_code;
 	}
 
-	sort(tegra->timings, tegra->num_timings, sizeof(struct emc_timing),
+	sort(timings_ptr, child_count, sizeof(struct emc_timing),
 	     cmp_timings, NULL);
 
 	return 0;
···
 		 * fuses until the apbmisc driver is loaded.
 		 */
 		err = load_timings_from_dt(tegra, node, node_ram_code);
-		of_node_put(node);
-		if (err)
+		if (err) {
+			of_node_put(node);
 			return ERR_PTR(err);
-		break;
+		}
 	}
 
 	if (tegra->num_timings == 0)
···
 
 	/* Allow debugging tools to see the EMC clock */
 	clk_register_clkdev(clk, "emc", "tegra-clk-debug");
-
-	clk_prepare_enable(clk);
 
 	return clk;
 };

drivers/clk/tegra/clk-pll.c

···
 	unsigned long flags = 0;
 	int ret;
 
+	if (clk_pll_is_enabled(hw))
+		return 0;
+
 	if (pll->lock)
 		spin_lock_irqsave(pll->lock, flags);
 
···
 		pll_override_writel(val, params->pmc_divp_reg, pll);
 
 		val = pll_override_readl(params->pmc_divnm_reg, pll);
-		val &= ~(divm_mask(pll) << div_nmp->override_divm_shift) |
-			~(divn_mask(pll) << div_nmp->override_divn_shift);
+		val &= ~((divm_mask(pll) << div_nmp->override_divm_shift) |
+			(divn_mask(pll) << div_nmp->override_divn_shift));
 		val |= (cfg->m << div_nmp->override_divm_shift) |
 			(cfg->n << div_nmp->override_divn_shift);
 		pll_override_writel(val, params->pmc_divnm_reg, pll);
···
 static int clk_plle_enable(struct clk_hw *hw)
 {
 	struct tegra_clk_pll *pll = to_clk_pll(hw);
-	unsigned long input_rate = clk_hw_get_rate(clk_hw_get_parent(hw));
 	struct tegra_clk_pll_freq_table sel;
+	unsigned long input_rate;
 	u32 val;
 	int err;
+
+	if (clk_pll_is_enabled(hw))
+		return 0;
+
+	input_rate = clk_hw_get_rate(clk_hw_get_parent(hw));
 
 	if (_get_table_rate(hw, &sel, pll->params->fixed_rate, input_rate))
 		return -EINVAL;
···
 	int ret;
 	unsigned long flags = 0;
 
+	if (clk_pll_is_enabled(hw))
+		return 0;
+
 	if (pll->lock)
 		spin_lock_irqsave(pll->lock, flags);
 
···
 	u32 val;
 	int ret;
 	unsigned long flags = 0;
-	unsigned long input_rate = clk_hw_get_rate(clk_hw_get_parent(hw));
+	unsigned long input_rate;
+
+	if (clk_pll_is_enabled(hw))
+		return 0;
+
+	input_rate = clk_hw_get_rate(clk_hw_get_parent(hw));
 
 	if (_get_table_rate(hw, &sel, pll->params->fixed_rate, input_rate))
 		return -EINVAL;
···
 		pr_err("%s: failed to get OSC clock\n", __func__);
 		return -EINVAL;
 	}
+
+	if (clk_pll_is_enabled(hw))
+		return 0;
 
 	input_rate = clk_hw_get_rate(__clk_get_hw(osc));
 
···
 	return clk;
 }
 
+static int clk_plle_tegra210_is_enabled(struct clk_hw *hw)
+{
+	struct tegra_clk_pll *pll = to_clk_pll(hw);
+	u32 val;
+
+	val = pll_readl_base(pll);
+
+	return val & PLLE_BASE_ENABLE ? 1 : 0;
+}
+
 static int clk_plle_tegra210_enable(struct clk_hw *hw)
 {
 	struct tegra_clk_pll *pll = to_clk_pll(hw);
···
 	u32 val;
 	int ret = 0;
 	unsigned long flags = 0;
-	unsigned long input_rate = clk_hw_get_rate(clk_hw_get_parent(hw));
+	unsigned long input_rate;
+
+	if (clk_plle_tegra210_is_enabled(hw))
+		return 0;
+
+	input_rate = clk_hw_get_rate(clk_hw_get_parent(hw));
 
 	if (_get_table_rate(hw, &sel, pll->params->fixed_rate, input_rate))
 		return -EINVAL;
···
 out:
 	if (pll->lock)
 		spin_unlock_irqrestore(pll->lock, flags);
-}
-
-static int clk_plle_tegra210_is_enabled(struct clk_hw *hw)
-{
-	struct tegra_clk_pll *pll = to_clk_pll(hw);
-	u32 val;
-
-	val = pll_readl_base(pll);
-
-	return val & PLLE_BASE_ENABLE ? 1 : 0;
 }
 
 static const struct clk_ops tegra_clk_plle_tegra210_ops = {

drivers/clk/tegra/clk-tegra124.c

···
 	.base_reg = PLLM_BASE,
 	.misc_reg = PLLM_MISC,
 	.lock_mask = PLL_BASE_LOCK,
-	.lock_enable_bit_idx = PLL_MISC_LOCK_ENABLE,
 	.lock_delay = 300,
 	.max_p = 5,
 	.pdiv_tohw = pllm_p,
···
 	.pmc_divnm_reg = PMC_PLLM_WB0_OVERRIDE,
 	.pmc_divp_reg = PMC_PLLM_WB0_OVERRIDE_2,
 	.freq_table = pll_m_freq_table,
-	.flags = TEGRA_PLL_USE_LOCK | TEGRA_PLL_HAS_LOCK_ENABLE,
+	.flags = TEGRA_PLL_USE_LOCK,
 };
 
 static struct tegra_clk_pll_freq_table pll_e_freq_table[] = {

include/dt-bindings/clock/stm32fx-clock.h

···
 #define CLK_I2C3		28
 #define CLK_I2C4		29
 #define CLK_LPTIMER		30
-
-#define END_PRIMARY_CLK_F7	31
+#define CLK_PLL_SRC		31
+#define CLK_DFSDM1		32
+#define CLK_ADFSDM1		33
+#define CLK_F769_DSI		34
+#define END_PRIMARY_CLK_F7	35
 
 #endif

include/linux/clk/analogbits-wrpll-cln28hpc.h

···
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * Copyright (C) 2018-2019 SiFive, Inc.
+ * Wesley Terpstra
+ * Paul Walmsley
+ */
+
+#ifndef __LINUX_CLK_ANALOGBITS_WRPLL_CLN28HPC_H
+#define __LINUX_CLK_ANALOGBITS_WRPLL_CLN28HPC_H
+
+#include <linux/types.h>
+
+/* DIVQ_VALUES: number of valid DIVQ values */
+#define DIVQ_VALUES				6
+
+/*
+ * Bit definitions for struct wrpll_cfg.flags
+ *
+ * WRPLL_FLAGS_BYPASS_FLAG: if set, the PLL is either in bypass, or should be
+ *	programmed to enter bypass
+ * WRPLL_FLAGS_RESET_FLAG: if set, the PLL is in reset
+ * WRPLL_FLAGS_INT_FEEDBACK_FLAG: if set, the PLL is configured for internal
+ *	feedback mode
+ * WRPLL_FLAGS_EXT_FEEDBACK_FLAG: if set, the PLL is configured for external
+ *	feedback mode (not yet supported by this driver)
+ */
+#define WRPLL_FLAGS_BYPASS_SHIFT		0
+#define WRPLL_FLAGS_BYPASS_MASK		BIT(WRPLL_FLAGS_BYPASS_SHIFT)
+#define WRPLL_FLAGS_RESET_SHIFT		1
+#define WRPLL_FLAGS_RESET_MASK		BIT(WRPLL_FLAGS_RESET_SHIFT)
+#define WRPLL_FLAGS_INT_FEEDBACK_SHIFT	2
+#define WRPLL_FLAGS_INT_FEEDBACK_MASK	BIT(WRPLL_FLAGS_INT_FEEDBACK_SHIFT)
+#define WRPLL_FLAGS_EXT_FEEDBACK_SHIFT	3
+#define WRPLL_FLAGS_EXT_FEEDBACK_MASK	BIT(WRPLL_FLAGS_EXT_FEEDBACK_SHIFT)
+
+/**
+ * struct wrpll_cfg - WRPLL configuration values
+ * @divr: reference divider value (6 bits), as presented to the PLL signals
+ * @divf: feedback divider value (9 bits), as presented to the PLL signals
+ * @divq: output divider value (3 bits), as presented to the PLL signals
+ * @flags: PLL configuration flags.  See above for more information
+ * @range: PLL loop filter range.  See below for more information
+ * @output_rate_cache: cached output rates, swept across DIVQ
+ * @parent_rate: PLL refclk rate for which values are valid
+ * @max_r: maximum possible R divider value, given @parent_rate
+ * @init_r: initial R divider value to start the search from
+ *
+ * @divr, @divq, @divq, @range represent what the PLL expects to see
+ * on its input signals.  Thus @divr and @divf are the actual divisors
+ * minus one.  @divq is a power-of-two divider; for example, 1 =
+ * divide-by-2 and 6 = divide-by-64.  0 is an invalid @divq value.
+ *
+ * When initially passing a struct wrpll_cfg record, the
+ * record should be zero-initialized with the exception of the @flags
+ * field.  The only flag bits that need to be set are either
+ * WRPLL_FLAGS_INT_FEEDBACK or WRPLL_FLAGS_EXT_FEEDBACK.
+ */
+struct wrpll_cfg {
+	u8 divr;
+	u8 divq;
+	u8 range;
+	u8 flags;
+	u16 divf;
+/* private: */
+	u32 output_rate_cache[DIVQ_VALUES];
+	unsigned long parent_rate;
+	u8 max_r;
+	u8 init_r;
+};
+
+int wrpll_configure_for_rate(struct wrpll_cfg *c, u32 target_rate,
+			     unsigned long parent_rate);
+
+unsigned int wrpll_calc_max_lock_us(const struct wrpll_cfg *c);
+
+unsigned long wrpll_calc_output_rate(const struct wrpll_cfg *c,
+				     unsigned long parent_rate);
+
+#endif /* __LINUX_CLK_ANALOGBITS_WRPLL_CLN28HPC_H */

include/linux/clk/at91_pmc.h

···
 #define			AT91_PMC_USBDIV_4		(2 << 28)
 #define		AT91_PMC_USB96M		(1     << 28)		/* Divider by 2 Enable (PLLB only) */
 
+#define AT91_PMC_CPU_CKR	0x28			/* CPU Clock Register */
+
 #define	AT91_PMC_MCKR		0x30			/* Master Clock Register */
 #define		AT91_PMC_CSS		(3 <<  0)		/* Master Clock Selection */
 #define			AT91_PMC_CSS_SLOW		(0 << 0)
···
 
 #define AT91_PMC_PCR		0x10c			/* Peripheral Control Register [some SAM9 and SAMA5] */
 #define		AT91_PMC_PCR_PID_MASK		0x3f
-#define		AT91_PMC_PCR_GCKCSS_OFFSET	8
-#define		AT91_PMC_PCR_GCKCSS_MASK	(0x7  << AT91_PMC_PCR_GCKCSS_OFFSET)
-#define		AT91_PMC_PCR_GCKCSS(n)		((n)  << AT91_PMC_PCR_GCKCSS_OFFSET)	/* GCK Clock Source Selection */
 #define		AT91_PMC_PCR_CMD		(0x1  <<  12)				/* Command (read=0, write=1) */
-#define		AT91_PMC_PCR_DIV_OFFSET		16
-#define		AT91_PMC_PCR_DIV_MASK		(0x3  << AT91_PMC_PCR_DIV_OFFSET)
-#define		AT91_PMC_PCR_DIV(n)		((n)  << AT91_PMC_PCR_DIV_OFFSET)	/* Divisor Value */
-#define		AT91_PMC_PCR_GCKDIV_OFFSET	20
-#define		AT91_PMC_PCR_GCKDIV_MASK	(0xff  << AT91_PMC_PCR_GCKDIV_OFFSET)
-#define		AT91_PMC_PCR_GCKDIV(n)		((n)  << AT91_PMC_PCR_GCKDIV_OFFSET)	/* Generated Clock Divisor Value */
+#define		AT91_PMC_PCR_GCKDIV_MASK	GENMASK(27, 20)
 #define		AT91_PMC_PCR_EN			(0x1  <<  28)				/* Enable */
 #define		AT91_PMC_PCR_GCKEN		(0x1  <<  29)				/* GCK Enable */