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 properties:
  13   compatible:
  14     items:
  15       - enum:
  16           - renesas,tpu-r8a73a4   # R-Mobile APE6
  17           - renesas,tpu-r8a7740   # R-Mobile A1
  18           - renesas,tpu-r8a7742   # RZ/G1H
  19           - renesas,tpu-r8a7743   # RZ/G1M
  20           - renesas,tpu-r8a7744   # RZ/G1N
  21           - renesas,tpu-r8a7745   # RZ/G1E
  22           - renesas,tpu-r8a7790   # R-Car H2
  23           - renesas,tpu-r8a7791   # R-Car M2-W
  24           - renesas,tpu-r8a7792   # R-Car V2H
  25           - renesas,tpu-r8a7793   # R-Car M2-N
  26           - renesas,tpu-r8a7794   # R-Car E2
  27           - renesas,tpu-r8a7795   # R-Car H3
  28           - renesas,tpu-r8a7796   # R-Car M3-W
  29           - renesas,tpu-r8a77965  # R-Car M3-N
  30           - renesas,tpu-r8a77970  # R-Car V3M
  31           - renesas,tpu-r8a77980  # R-Car V3H
  32       - const: renesas,tpu
  33
  34   reg:
  35     # Base address and length of each memory resource used by the PWM
  36     # controller hardware module.
  37     maxItems: 1
  38
  39   interrupts:
  40     maxItems: 1
  41
  42   '#pwm-cells':
  43     # should be 3. See pwm.yaml in this directory for a description of
  44     # the cells format. The only third cell flag supported by this binding is
  45     # PWM_POLARITY_INVERTED.
  46     const: 3
  47
  48   clocks:
  49     maxItems: 1
  50
  51   power-domains:
  52     maxItems: 1
  53
  54   resets:
  55     maxItems: 1
  56
  57 required:
  58   - compatible
  59   - reg
  60   - '#pwm-cells'
  61
  62 additionalProperties: false
  63
  64 examples:
  65   - |
  66     #include <dt-bindings/clock/r8a7740-clock.h>
  67
  68     tpu: pwm@e6600000 {
  69         compatible = "renesas,tpu-r8a7740", "renesas,tpu";
  70         reg = <0xe6600000 0x148>;
  71         clocks = <&mstp3_clks R8A7740_CLK_TPU0>;
  72         power-domains = <&pd_a3sp>;
  73         #pwm-cells = <3>;
  74     };