target/linux/starfive/patches-6.1/0062-dt-bindings-PWM-Add-StarFive-PWM-module.patch

   1 From 99f0bf43994dada29e33fd8718fd25484634da3a Mon Sep 17 00:00:00 2001
   2 From: William Qiu <william.qiu@starfivetech.com>
   3 Date: Tue, 21 Mar 2023 13:52:27 +0800
   4 Subject: [PATCH 062/122] dt-bindings: PWM: Add StarFive PWM module
   5
   6 Add documentation to describe StarFive Pulse Width Modulation
   7 controller driver.
   8
   9 Signed-off-by: William Qiu <william.qiu@starfivetech.com>
  10 Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
  11 ---
  12  .../bindings/pwm/starfive,jh7110-pwm.yaml     | 53 +++++++++++++++++++
  13  1 file changed, 53 insertions(+)
  14  create mode 100644 Documentation/devicetree/bindings/pwm/starfive,jh7110-pwm.yaml
  15
  16 --- /dev/null
  17 +++ b/Documentation/devicetree/bindings/pwm/starfive,jh7110-pwm.yaml
  18 @@ -0,0 +1,53 @@
  19 +# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
  20 +%YAML 1.2
  21 +---
  22 +$id: http://devicetree.org/schemas/pwm/starfive,jh7110-pwm.yaml#
  23 +$schema: http://devicetree.org/meta-schemas/core.yaml#
  24 +
  25 +title: StarFive PWM controller
  26 +
  27 +maintainers:
  28 +  - William Qiu <william.qiu@starfivetech.com>
  29 +
  30 +description:
  31 +  StarFive SoCs contain PWM and when operating in PWM mode, the PTC core generates
  32 +  binary signal with user-programmable low and high periods. Clock source for the
  33 +  PWM can be either system clockor external clock. Each PWM timer block provides 8
  34 +  PWM channels.
  35 +
  36 +allOf:
  37 +  - $ref: pwm.yaml#
  38 +
  39 +properties:
  40 +  compatible:
  41 +    const: starfive,jh7110-pwm
  42 +
  43 +  reg:
  44 +    maxItems: 1
  45 +
  46 +  clocks:
  47 +    maxItems: 1
  48 +
  49 +  resets:
  50 +    maxItems: 1
  51 +
  52 +  "#pwm-cells":
  53 +    const: 3
  54 +
  55 +required:
  56 +  - compatible
  57 +  - reg
  58 +  - clocks
  59 +  - resets
  60 +
  61 +additionalProperties: false
  62 +
  63 +examples:
  64 +  - |
  65 +    pwm@120d0000 {
  66 +        compatible = "starfive,jh7110-pwm";
  67 +        reg = <0x120d0000 0x10000>;
  68 +        clocks = <&syscrg 121>;
  69 +        resets = <&syscrg 108>;
  70 +        #pwm-cells = <3>;
  71 +    };