Commit a0b67429 authored by Stanislav Jakubek's avatar Stanislav Jakubek Committed by Uwe Kleine-König
Browse files

dt-bindings: pwm: sprd,ums512-pwm: convert to YAML 



Convert the Spreadtrum/Unisoc UMS512 PWM controller bindings to DT schema.
Adjust filename to match compatible. Drop assigned-* properties as these
should not be needed.

Signed-off-by: default avatarStanislav Jakubek <stano.jakubek@gmail.com>
Reviewed-by: default avatarRob Herring (Arm) <robh@kernel.org>
Reviewed-by: default avatarChunyan Zhang <zhang.lyra@gmail.com>
Acked-by: default avatarBaolin Wang <baolin.wang@linux.alibaba.com>
Link: https://lore.kernel.org/r/ZyH-JASRcpMXYsmH@standask-GA-A55M-S2HP


[Replaced Baolin Wang's email address in maintainers list]
Signed-off-by: default avatarUwe Kleine-König <ukleinek@kernel.org>
parent 10435e0d

Documentation/devicetree/bindings/pwm/pwm-sprd.txt

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Spreadtrum PWM controller



Spreadtrum SoCs PWM controller provides 4 PWM channels.



Required properties:

- compatible : Should be "sprd,ums512-pwm".

- reg: Physical base address and length of the controller's registers.

- clocks: The phandle and specifier referencing the controller's clocks.

- clock-names: Should contain following entries:

  "pwmn": used to derive the functional clock for PWM channel n (n range: 0 ~ 3).

  "enablen": for PWM channel n enable clock (n range: 0 ~ 3).

- #pwm-cells: Should be 2. See pwm.yaml in this directory for a description of

  the cells format.



Optional properties:

- assigned-clocks: Reference to the PWM clock entries.

- assigned-clock-parents: The phandle of the parent clock of PWM clock.



Example:

	pwms: pwm@32260000 {

		compatible = "sprd,ums512-pwm";

		reg = <0 0x32260000 0 0x10000>;

		clock-names = "pwm0", "enable0",

			"pwm1", "enable1",

			"pwm2", "enable2",

			"pwm3", "enable3";

		clocks = <&aon_clk CLK_PWM0>, <&aonapb_gate CLK_PWM0_EB>,

		       <&aon_clk CLK_PWM1>, <&aonapb_gate CLK_PWM1_EB>,

		       <&aon_clk CLK_PWM2>, <&aonapb_gate CLK_PWM2_EB>,

		       <&aon_clk CLK_PWM3>, <&aonapb_gate CLK_PWM3_EB>;

		assigned-clocks = <&aon_clk CLK_PWM0>,

			<&aon_clk CLK_PWM1>,

			<&aon_clk CLK_PWM2>,

			<&aon_clk CLK_PWM3>;

		assigned-clock-parents = <&ext_26m>,

			<&ext_26m>,

			<&ext_26m>,

			<&ext_26m>;

		#pwm-cells = <2>;

	};

Documentation/devicetree/bindings/pwm/sprd,ums512-pwm.yaml

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# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause

%YAML 1.2

---

$id: http://devicetree.org/schemas/pwm/sprd,ums512-pwm.yaml#

$schema: http://devicetree.org/meta-schemas/core.yaml#



title: Spreadtrum/Unisoc UMS512 PWM Controller



maintainers:

  - Orson Zhai <orsonzhai@gmail.com>

  - Baolin Wang <baolin.wang@linux.alibaba.com>

  - Chunyan Zhang <zhang.lyra@gmail.com>



properties:

  compatible:

    const: sprd,ums512-pwm



  reg:

    maxItems: 1



  clocks:

    maxItems: 8



  clock-names:

    items:

      - const: pwm0

      - const: enable0

      - const: pwm1

      - const: enable1

      - const: pwm2

      - const: enable2

      - const: pwm3

      - const: enable3



  '#pwm-cells':

    const: 2



required:

  - compatible

  - reg

  - clocks

  - clock-names



allOf:

  - $ref: pwm.yaml#



unevaluatedProperties: false



examples:

  - |

    #include <dt-bindings/clock/sprd,ums512-clk.h>



    pwm@32260000 {

      compatible = "sprd,ums512-pwm";

      reg = <0x32260000 0x10000>;

      clocks = <&aon_clk CLK_PWM0>, <&aonapb_gate CLK_PWM0_EB>,

               <&aon_clk CLK_PWM1>, <&aonapb_gate CLK_PWM1_EB>,

               <&aon_clk CLK_PWM2>, <&aonapb_gate CLK_PWM2_EB>,

               <&aon_clk CLK_PWM3>, <&aonapb_gate CLK_PWM3_EB>;

      clock-names = "pwm0", "enable0",

                    "pwm1", "enable1",

                    "pwm2", "enable2",

                    "pwm3", "enable3";

      #pwm-cells = <2>;

    };

...