Documentation/devicetree/bindings/pwm/renesas,tpu-pwm.yaml

   1 # SPDX-License-Identifier: GPL-2.0
   2 %YAML 1.2
   3 ---
   4 $id: http://devicetree.org/schemas/pwm/renesas,tpu-pwm.yaml#
   5 $schema: http://devicetree.org/meta-schemas/core.yaml#
   6
   7 title: Renesas R-Car Timer Pulse Unit PWM Controller
   8
   9 maintainers:
  10   - Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
  11
  12 select:
  13   properties:
  14     compatible:
  15       contains:
  16         const: renesas,tpu
  17   required:
  18     - compatible
  19     - '#pwm-cells'
  20
  21 properties:
  22   compatible:
  23     items:
  24       - enum:
  25           - renesas,tpu-r8a73a4   # R-Mobile APE6
  26           - renesas,tpu-r8a7740   # R-Mobile A1
  27           - renesas,tpu-r8a7742   # RZ/G1H
  28           - renesas,tpu-r8a7743   # RZ/G1M
  29           - renesas,tpu-r8a7744   # RZ/G1N
  30           - renesas,tpu-r8a7745   # RZ/G1E
  31           - renesas,tpu-r8a7790   # R-Car H2
  32           - renesas,tpu-r8a7791   # R-Car M2-W
  33           - renesas,tpu-r8a7792   # R-Car V2H
  34           - renesas,tpu-r8a7793   # R-Car M2-N
  35           - renesas,tpu-r8a7794   # R-Car E2
  36           - renesas,tpu-r8a7795   # R-Car H3
  37           - renesas,tpu-r8a7796   # R-Car M3-W
  38           - renesas,tpu-r8a77965  # R-Car M3-N
  39           - renesas,tpu-r8a77970  # R-Car V3M
  40           - renesas,tpu-r8a77980  # R-Car V3H
  41       - const: renesas,tpu
  42
  43   reg:
  44     # Base address and length of each memory resource used by the PWM
  45     # controller hardware module.
  46     maxItems: 1
  47
  48   interrupts:
  49     maxItems: 1
  50
  51   '#pwm-cells':
  52     # should be 3. See pwm.yaml in this directory for a description of
  53     # the cells format. The only third cell flag supported by this binding is
  54     # PWM_POLARITY_INVERTED.
  55     const: 3
  56
  57   clocks:
  58     maxItems: 1
  59
  60   power-domains:
  61     maxItems: 1
  62
  63   resets:
  64     maxItems: 1
  65
  66 required:
  67   - compatible
  68   - reg
  69   - '#pwm-cells'
  70   - clocks
  71   - power-domains
  72
  73 allOf:
  74   - $ref: pwm.yaml#
  75
  76   - if:
  77       not:
  78         properties:
  79           compatible:
  80             contains:
  81               enum:
  82                 - renesas,tpu-r8a73a4
  83                 - renesas,tpu-r8a7740
  84     then:
  85       required:
  86         - resets
  87
  88 additionalProperties: false
  89
  90 examples:
  91   - |
  92     #include <dt-bindings/clock/r8a7740-clock.h>
  93
  94     tpu: pwm@e6600000 {
  95         compatible = "renesas,tpu-r8a7740", "renesas,tpu";
  96         reg = <0xe6600000 0x148>;
  97         clocks = <&mstp3_clks R8A7740_CLK_TPU0>;
  98         power-domains = <&pd_a3sp>;
  99         #pwm-cells = <3>;
 100     };