dt-bindings: clock: Convert marvell,mvebu-core-clock to DT schema

Convert the Marvell SoC core clock binding to DT schema format. It's a
straight forward conversion.

Signed-off-by: Rob Herring (Arm) <[e-mail]>
Link: https://lore.kernel.org/r/[e-mail]
Signed-off-by: Stephen Boyd <[e-mail]>

Documentation/devicetree/bindings/clock/marvell,mvebu-core-clock.yaml

···
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/clock/marvell,mvebu-core-clock.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Marvell MVEBU SoC core clock
+
+maintainers:
+  - Andrew Lunn <[e-mail]>
+  - Gregory Clement <[e-mail]>
+
+description: >
+  Marvell MVEBU SoCs usually allow to determine core clock frequencies by
+  reading the Sample-At-Reset (SAR) register. The core clock consumer should
+  specify the desired clock by having the clock ID in its "clocks" phandle cell.
+
+  The following is a list of provided IDs and clock names on Armada 370/XP:
+   0 = tclk    (Internal Bus clock)
+   1 = cpuclk  (CPU clock)
+   2 = nbclk   (L2 Cache clock)
+   3 = hclk    (DRAM control clock)
+   4 = dramclk (DDR clock)
+
+  The following is a list of provided IDs and clock names on Armada 375:
+   0 = tclk    (Internal Bus clock)
+   1 = cpuclk  (CPU clock)
+   2 = l2clk   (L2 Cache clock)
+   3 = ddrclk  (DDR clock)
+
+  The following is a list of provided IDs and clock names on Armada 380/385:
+   0 = tclk    (Internal Bus clock)
+   1 = cpuclk  (CPU clock)
+   2 = l2clk   (L2 Cache clock)
+   3 = ddrclk  (DDR clock)
+
+  The following is a list of provided IDs and clock names on Armada 39x:
+   0 = tclk    (Internal Bus clock)
+   1 = cpuclk  (CPU clock)
+   2 = nbclk   (Coherent Fabric clock)
+   3 = hclk    (SDRAM Controller Internal Clock)
+   4 = dclk    (SDRAM Interface Clock)
+   5 = refclk  (Reference Clock)
+
+  The following is a list of provided IDs and clock names on 98dx3236:
+   0 = tclk    (Internal Bus clock)
+   1 = cpuclk  (CPU clock)
+   2 = ddrclk  (DDR clock)
+   3 = mpll    (MPLL Clock)
+
+  The following is a list of provided IDs and clock names on Kirkwood and Dove:
+   0 = tclk   (Internal Bus clock)
+   1 = cpuclk (CPU0 clock)
+   2 = l2clk  (L2 Cache clock derived from CPU0 clock)
+   3 = ddrclk (DDR controller clock derived from CPU0 clock)
+
+  The following is a list of provided IDs and clock names on Orion5x:
+   0 = tclk   (Internal Bus clock)
+   1 = cpuclk (CPU0 clock)
+   2 = ddrclk (DDR controller clock derived from CPU0 clock)
+
+properties:
+  compatible:
+    enum:
+      - marvell,armada-370-core-clock
+      - marvell,armada-375-core-clock
+      - marvell,armada-380-core-clock
+      - marvell,armada-390-core-clock
+      - marvell,armada-xp-core-clock
+      - marvell,dove-core-clock
+      - marvell,kirkwood-core-clock
+      - marvell,mv88f5181-core-clock
+      - marvell,mv88f5182-core-clock
+      - marvell,mv88f5281-core-clock
+      - marvell,mv88f6180-core-clock
+      - marvell,mv88f6183-core-clock
+      - marvell,mv98dx1135-core-clock
+      - marvell,mv98dx3236-core-clock
+
+  reg:
+    maxItems: 1
+
+  '#clock-cells':
+    const: 1
+
+  clock-output-names:
+    description: Overwrite default clock output names.
+
+required:
+  - compatible
+  - reg
+  - '#clock-cells'
+
+additionalProperties: false

Documentation/devicetree/bindings/clock/mvebu-core-clock.txt

···
-* Core Clock bindings for Marvell MVEBU SoCs
-
-Marvell MVEBU SoCs usually allow to determine core clock frequencies by
-reading the Sample-At-Reset (SAR) register. The core clock consumer should
-specify the desired clock by having the clock ID in its "clocks" phandle cell.
-
-The following is a list of provided IDs and clock names on Armada 370/XP:
- 0 = tclk    (Internal Bus clock)
- 1 = cpuclk  (CPU clock)
- 2 = nbclk   (L2 Cache clock)
- 3 = hclk    (DRAM control clock)
- 4 = dramclk (DDR clock)
-
-The following is a list of provided IDs and clock names on Armada 375:
- 0 = tclk    (Internal Bus clock)
- 1 = cpuclk  (CPU clock)
- 2 = l2clk   (L2 Cache clock)
- 3 = ddrclk  (DDR clock)
-
-The following is a list of provided IDs and clock names on Armada 380/385:
- 0 = tclk    (Internal Bus clock)
- 1 = cpuclk  (CPU clock)
- 2 = l2clk   (L2 Cache clock)
- 3 = ddrclk  (DDR clock)
-
-The following is a list of provided IDs and clock names on Armada 39x:
- 0 = tclk    (Internal Bus clock)
- 1 = cpuclk  (CPU clock)
- 2 = nbclk   (Coherent Fabric clock)
- 3 = hclk    (SDRAM Controller Internal Clock)
- 4 = dclk    (SDRAM Interface Clock)
- 5 = refclk  (Reference Clock)
-
-The following is a list of provided IDs and clock names on 98dx3236:
- 0 = tclk    (Internal Bus clock)
- 1 = cpuclk  (CPU clock)
- 2 = ddrclk   (DDR clock)
- 3 = mpll    (MPLL Clock)
-
-The following is a list of provided IDs and clock names on Kirkwood and Dove:
- 0 = tclk   (Internal Bus clock)
- 1 = cpuclk (CPU0 clock)
- 2 = l2clk  (L2 Cache clock derived from CPU0 clock)
- 3 = ddrclk (DDR controller clock derived from CPU0 clock)
-
-The following is a list of provided IDs and clock names on Orion5x:
- 0 = tclk   (Internal Bus clock)
- 1 = cpuclk (CPU0 clock)
- 2 = ddrclk (DDR controller clock derived from CPU0 clock)
-
-Required properties:
-- compatible : shall be one of the following:
-	"marvell,armada-370-core-clock" - For Armada 370 SoC core clocks
-	"marvell,armada-375-core-clock" - For Armada 375 SoC core clocks
-	"marvell,armada-380-core-clock" - For Armada 380/385 SoC core clocks
-	"marvell,armada-390-core-clock" - For Armada 39x SoC core clocks
-	"marvell,armada-xp-core-clock" - For Armada XP SoC core clocks
-	"marvell,mv98dx3236-core-clock" - For 98dx3236 family SoC core clocks
-	"marvell,dove-core-clock" - for Dove SoC core clocks
-	"marvell,kirkwood-core-clock" - for Kirkwood SoC (except mv88f6180)
-	"marvell,mv88f6180-core-clock" - for Kirkwood MV88f6180 SoC
-	"marvell,mv98dx1135-core-clock" - for Kirkwood 98dx1135 SoC
-	"marvell,mv88f5181-core-clock" - for Orion MV88F5181 SoC
-	"marvell,mv88f5182-core-clock" - for Orion MV88F5182 SoC
-	"marvell,mv88f5281-core-clock" - for Orion MV88F5281 SoC
-	"marvell,mv88f6183-core-clock" - for Orion MV88F6183 SoC
-- reg : shall be the register address of the Sample-At-Reset (SAR) register
-- #clock-cells : from common clock binding; shall be set to 1
-
-Optional properties:
-- clock-output-names : from common clock binding; allows overwrite default clock
-	output names ("tclk", "cpuclk", "l2clk", "ddrclk")
-
-Example:
-
-core_clk: core-clocks@d0214 {
-	compatible = "marvell,dove-core-clock";
-	reg = <0xd0214 0x4>;
-	#clock-cells = <1>;
-};
-
-spi0: spi@10600 {
-	compatible = "marvell,orion-spi";
-	/* ... */
-	/* get tclk from core clock provider */
-	clocks = <&core_clk 0>;
-};