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-r8a77961  # R-Car M3-W+
  39           - renesas,tpu-r8a77965  # R-Car M3-N
  40           - renesas,tpu-r8a77970  # R-Car V3M
  41           - renesas,tpu-r8a77980  # R-Car V3H
  42           - renesas,tpu-r8a779a0  # R-Car V3U
  43           - renesas,tpu-r8a779g0  # R-Car V4H
  44       - const: renesas,tpu
  45
  46   reg:
  47     # Base address and length of each memory resource used by the PWM
  48     # controller hardware module.
  49     maxItems: 1
  50
  51   interrupts:
  52     maxItems: 1
  53
  54   '#pwm-cells':
  55     # should be 3. See pwm.yaml in this directory for a description of
  56     # the cells format. The only third cell flag supported by this binding is
  57     # PWM_POLARITY_INVERTED.
  58     const: 3
  59
  60   clocks:
  61     maxItems: 1
  62
  63   power-domains:
  64     maxItems: 1
  65
  66   resets:
  67     maxItems: 1
  68
  69 required:
  70   - compatible
  71   - reg
  72   - clocks
  73   - power-domains
  74
  75 allOf:
  76   - $ref: pwm.yaml#
  77
  78   - if:
  79       not:
  80         properties:
  81           compatible:
  82             contains:
  83               enum:
  84                 - renesas,tpu-r8a73a4
  85                 - renesas,tpu-r8a7740
  86     then:
  87       required:
  88         - resets
  89
  90 additionalProperties: false
  91
  92 examples:
  93   - |
  94     #include <dt-bindings/clock/r8a7740-clock.h>
  95
  96     tpu: pwm@e6600000 {
  97         compatible = "renesas,tpu-r8a7740", "renesas,tpu";
  98         reg = <0xe6600000 0x148>;
  99         clocks = <&mstp3_clks R8A7740_CLK_TPU0>;
 100         power-domains = <&pd_a3sp>;
 101         #pwm-cells = <3>;
 102     };