Merge branches 'clk-xilinx', 'clk-kunit', 'clk-cs2000' and 'clk-renesas' into clk-next

 - Kunit tests for clk-gate implementation
 - Convert Cirrus Logic CS2000P driver to regmap, yamlify DT binding and add
   support for dynamic mode

* clk-xilinx:
  clk: zynqmp: replace warn_once with pr_debug for failed clock ops

* clk-kunit:
  clk: gate: Add some kunit test suites

* clk-cs2000:
  clk: cs2000-cp: convert driver to regmap
  clk: cs2000-cp: freeze config during register fiddling
  clk: cs2000-cp: make clock skip setting configurable
  clk: cs2000-cp: add support for dynamic mode
  clk: cs2000-cp: Make aux output function controllable
  dt-bindings: clock: cs2000-cp: document cirrus,dynamic-mode
  dt-bindings: clock: cs2000-cp: document cirrus,clock-skip flag
  dt-bindings: clock: cs2000-cp: document aux-output-source
  dt-bindings: clock: convert cs2000-cp bindings to yaml

* clk-renesas:
  dt-bindings: clock: renesas: Make example 'clocks' parsable
  clk: rs9: Add Renesas 9-series PCIe clock generator driver
  clk: fixed-factor: Introduce devm_clk_hw_register_fixed_factor_index()
  dt-bindings: clk: rs9: Add Renesas 9-series I2C PCIe clock generator
  clk: renesas: r8a779f0: Add PFC clock
  clk: renesas: r8a779f0: Add I2C clocks
  clk: renesas: r8a779f0: Add WDT clock
  clk: renesas: r8a779f0: Fix RSW2 clock divider
  clk: renesas: rzg2l-cpg: Add support for RZ/V2L SoC
  dt-bindings: clock: renesas: Document RZ/V2L SoC
  dt-bindings: clock: Add R9A07G054 CPG Clock and Reset Definitions
  clk: renesas: r8a779a0: Add CANFD module clock
  clk: renesas: r9a07g044: Update multiplier and divider values for PLL2/3
  clk: renesas: r8a7799[05]: Add MLP clocks
  clk: renesas: r8a779f0: Add SYS-DMAC clocks

Author: bebarino

Documentation/devicetree/bindings/clock/cirrus,cs2000-cp.yaml

@@ -0,0 +1,91 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/clock/cirrus,cs2000-cp.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Binding CIRRUS LOGIC Fractional-N Clock Synthesizer & Clock Multiplier
+
+maintainers:
+  - Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
+
+description: |
+  The CS2000-CP is an extremely versatile system clocking device that
+  utilizes a programmable phase lock loop.
+
+  Link: https://www.cirrus.com/products/cs2000/
+
+properties:
+  compatible:
+    enum:
+      - cirrus,cs2000-cp
+
+  clocks:
+    description:
+      Common clock binding for CLK_IN, XTI/REF_CLK
+    minItems: 2
+    maxItems: 2
+
+  clock-names:
+    items:
+      - const: clk_in
+      - const: ref_clk
+
+  '#clock-cells':
+    const: 0
+
+  reg:
+    maxItems: 1
+
+  cirrus,aux-output-source:
+    description:
+      Specifies the function of the auxiliary clock output pin
+    $ref: /schemas/types.yaml#/definitions/uint32
+    enum:
+      - 0 # CS2000CP_AUX_OUTPUT_REF_CLK:  ref_clk input
+      - 1 # CS2000CP_AUX_OUTPUT_CLK_IN:   clk_in input
+      - 2 # CS2000CP_AUX_OUTPUT_CLK_OUT:  clk_out output
+      - 3 # CS2000CP_AUX_OUTPUT_PLL_LOCK: pll lock status
+    default: 0
+
+  cirrus,clock-skip:
+    description:
+      This mode allows the PLL to maintain lock even when CLK_IN
+      has missing pulses for up to 20 ms.
+    $ref: /schemas/types.yaml#/definitions/flag
+
+  cirrus,dynamic-mode:
+    description:
+      In dynamic mode, the CLK_IN input is used to drive the
+      digital PLL of the silicon.
+      If not given, the static mode shall be used to derive the
+      output signal directly from the REF_CLK input.
+    $ref: /schemas/types.yaml#/definitions/flag
+
+required:
+  - compatible
+  - reg
+  - clocks
+  - clock-names
+  - '#clock-cells'
+
+additionalProperties: false
+
+examples:
+  - |
+    #include <dt-bindings/clock/cirrus,cs2000-cp.h>
+
+    i2c@0 {
+      reg = <0x0 0x100>;
+      #address-cells = <1>;
+      #size-cells = <0>;
+
+      clock-controller@4f {
+        #clock-cells = <0>;
+        compatible = "cirrus,cs2000-cp";
+        reg = <0x4f>;
+        clocks = <&rcar_sound 0>, <&x12_clk>;
+        clock-names = "clk_in", "ref_clk";
+        cirrus,aux-output-source = <CS2000CP_AUX_OUTPUT_CLK_OUT>;
+      };
+    };

Documentation/devicetree/bindings/clock/cs2000-cp.txt

@@ -0,0 +1,97 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/clock/renesas,9series.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Binding for Renesas 9-series I2C PCIe clock generators
+
+description: |
+  The Renesas 9-series are I2C PCIe clock generators providing
+  from 1 to 20 output clocks.
+
+  When referencing the provided clock in the DT using phandle
+  and clock specifier, the following mapping applies:
+
+  - 9FGV0241:
+    0 -- DIF0
+    1 -- DIF1
+
+maintainers:
+  - Marek Vasut <marex@denx.de>
+
+properties:
+  compatible:
+    enum:
+      - renesas,9fgv0241
+
+  reg:
+    description: I2C device address
+    enum: [ 0x68, 0x6a ]
+
+  '#clock-cells':
+    const: 1
+
+  clocks:
+    items:
+      - description: XTal input clock
+
+  renesas,out-amplitude-microvolt:
+    enum: [ 600000, 700000, 800000, 900000 ]
+    description: Output clock signal amplitude
+
+  renesas,out-spread-spectrum:
+    $ref: /schemas/types.yaml#/definitions/uint32
+    enum: [ 100000, 99750, 99500 ]
+    description: Output clock down spread in pcm (1/1000 of percent)
+
+patternProperties:
+  "^DIF[0-19]$":
+    type: object
+    description:
+      Description of one of the outputs (DIF0..DIF19).
+
+    properties:
+      renesas,slew-rate:
+        $ref: /schemas/types.yaml#/definitions/uint32
+        enum: [ 2000000, 3000000 ]
+        description: Output clock slew rate select in V/ns
+
+    additionalProperties: false
+
+required:
+  - compatible
+  - reg
+  - clocks
+  - '#clock-cells'
+
+additionalProperties: false
+
+examples:
+  - |
+    /* 25MHz reference crystal */
+    ref25: ref25m {
+        compatible = "fixed-clock";
+        #clock-cells = <0>;
+        clock-frequency = <25000000>;
+    };
+
+    i2c@0 {
+        reg = <0x0 0x100>;
+        #address-cells = <1>;
+        #size-cells = <0>;
+
+        rs9: clock-generator@6a {
+            compatible = "renesas,9fgv0241";
+            reg = <0x6a>;
+            #clock-cells = <1>;
+
+            clocks = <&ref25m>;
+
+            DIF0 {
+                renesas,slew-rate = <3000000>;
+            };
+        };
+    };
+
+...

Documentation/devicetree/bindings/clock/renesas,9series.yaml

@@ -51,6 +51,18 @@ additionalProperties: false
 examples:
   - |
     #include <dt-bindings/clock/r8a73a4-clock.h>
+
+    cpg_clocks: cpg_clocks@e6150000 {
+            compatible = "renesas,r8a73a4-cpg-clocks";
+            reg = <0xe6150000 0x10000>;
+            clocks = <&extal1_clk>, <&extal2_clk>;
+            #clock-cells = <1>;
+            clock-output-names = "main", "pll0", "pll1", "pll2",
+                                  "pll2s", "pll2h", "z", "z2",
+                                  "i", "m3", "b", "m1", "m2",
+                                  "zx", "zs", "hp";
+    };
+
     sdhi2_clk: sdhi2_clk@e615007c {
             compatible = "renesas,r8a73a4-div6-clock", "renesas,cpg-div6-clock";
             reg = <0xe615007c 4>;

Documentation/devicetree/bindings/clock/renesas,cpg-div6-clock.yaml

@@ -4,13 +4,13 @@
 $id: "http://devicetree.org/schemas/clock/renesas,rzg2l-cpg.yaml#"
 $schema: "http://devicetree.org/meta-schemas/core.yaml#"
 
-title: Renesas RZ/G2L Clock Pulse Generator / Module Standby Mode
+title: Renesas RZ/{G2L,V2L} Clock Pulse Generator / Module Standby Mode
 
 maintainers:
   - Geert Uytterhoeven <geert+renesas@glider.be>
 
 description: |
-  On Renesas RZ/G2L SoC, the CPG (Clock Pulse Generator) and Module
+  On Renesas RZ/{G2L,V2L} SoC, the CPG (Clock Pulse Generator) and Module
   Standby Mode share the same register block.
 
   They provide the following functionalities:
@@ -22,7 +22,9 @@ description: |
 
 properties:
   compatible:
-    const: renesas,r9a07g044-cpg  # RZ/G2{L,LC}
+    enum:
+      - renesas,r9a07g044-cpg  # RZ/G2{L,LC}
+      - renesas,r9a07g054-cpg  # RZ/V2L
 
   reg:
     maxItems: 1
@@ -40,9 +42,9 @@ properties:
     description: |
       - For CPG core clocks, the two clock specifier cells must be "CPG_CORE"
         and a core clock reference, as defined in
-        <dt-bindings/clock/r9a07g044-cpg.h>
+        <dt-bindings/clock/r9a07g*-cpg.h>
       - For module clocks, the two clock specifier cells must be "CPG_MOD" and
-        a module number, as defined in the <dt-bindings/clock/r9a07g044-cpg.h>.
+        a module number, as defined in the <dt-bindings/clock/r9a07g0*-cpg.h>.
     const: 2
 
   '#power-domain-cells':
@@ -56,7 +58,7 @@ properties:
   '#reset-cells':
     description:
       The single reset specifier cell must be the module number, as defined in
-      the <dt-bindings/clock/r9a07g044-cpg.h>.
+      the <dt-bindings/clock/r9a07g0*-cpg.h>.
     const: 1
 
 required:

Documentation/devicetree/bindings/clock/renesas,rzg2l-cpg.yaml

@@ -0,0 +1,3 @@
+CONFIG_KUNIT=y
+CONFIG_COMMON_CLK=y
+CONFIG_CLK_GATE_KUNIT_TEST=y

drivers/clk/.kunitconfig

@@ -197,6 +197,7 @@ config COMMON_CLK_CDCE925
 config COMMON_CLK_CS2000_CP
 	tristate "Clock driver for CS2000 Fractional-N Clock Synthesizer & Clock Multiplier"
 	depends on I2C
+	select REGMAP_I2C
 	help
 	  If you say yes here you get support for the CS2000 clock multiplier.
 
@@ -337,6 +338,15 @@ config COMMON_CLK_OXNAS
 	help
 	  Support for the OXNAS SoC Family clocks.
 
+config COMMON_CLK_RS9_PCIE
+	tristate "Clock driver for Renesas 9-series PCIe clock generators"
+	depends on I2C
+	depends on OF
+	select REGMAP_I2C
+	help
+	  This driver supports the Renesas 9-series PCIe clock generator
+	  models 9FGV/9DBV/9DMV/9FGL/9DML/9QXL/9SQ.
+
 config COMMON_CLK_VC5
 	tristate "Clock driver for IDT VersaClock 5,6 devices"
 	depends on I2C
@@ -426,4 +436,12 @@ source "drivers/clk/x86/Kconfig"
 source "drivers/clk/xilinx/Kconfig"
 source "drivers/clk/zynqmp/Kconfig"
 
+# Kunit test cases
+config CLK_GATE_KUNIT_TEST
+	tristate "Basic gate type Kunit test" if !KUNIT_ALL_TESTS
+	depends on KUNIT
+	default KUNIT_ALL_TESTS
+	help
+	  Kunit test for the basic clk gate type.
+
 endif

drivers/clk/Kconfig

@@ -6,6 +6,7 @@ obj-$(CONFIG_COMMON_CLK)	+= clk-divider.o
 obj-$(CONFIG_COMMON_CLK)	+= clk-fixed-factor.o
 obj-$(CONFIG_COMMON_CLK)	+= clk-fixed-rate.o
 obj-$(CONFIG_COMMON_CLK)	+= clk-gate.o
+obj-$(CONFIG_CLK_GATE_KUNIT_TEST) += clk-gate_test.o
 obj-$(CONFIG_COMMON_CLK)	+= clk-multiplier.o
 obj-$(CONFIG_COMMON_CLK)	+= clk-mux.o
 obj-$(CONFIG_COMMON_CLK)	+= clk-composite.o
@@ -67,6 +68,7 @@ obj-$(CONFIG_COMMON_CLK_STM32MP157)	+= clk-stm32mp1.o
 obj-$(CONFIG_COMMON_CLK_TPS68470)      += clk-tps68470.o
 obj-$(CONFIG_CLK_TWL6040)		+= clk-twl6040.o
 obj-$(CONFIG_ARCH_VT8500)		+= clk-vt8500.o
+obj-$(CONFIG_COMMON_CLK_RS9_PCIE)	+= clk-renesas-pcie.o
 obj-$(CONFIG_COMMON_CLK_VC5)		+= clk-versaclock5.o
 obj-$(CONFIG_COMMON_CLK_WM831X)		+= clk-wm831x.o
 obj-$(CONFIG_COMMON_CLK_XGENE)		+= clk-xgene.o