dt-bindings: pwm: renesas: tpu: convert bindings to json-schema

Convert Renesas R-Car Timer Pulse Unit PWM Controller bindings documentation
to json-schema.

Signed-off-by: Yoshihiro Kaneko <ykaneko0929@gmail.com>
Reviewed-by: Simon Horman <horms+renesas@verge.net.au>
Signed-off-by: Rob Herring <robh@kernel.org>

1 files changed, 69 insertions, 0 deletions

diff --git a/Documentation/devicetree/bindings/pwm/renesas,tpu-pwm.yaml b/Documentation/devicetree/bindings/pwm/renesas,tpu-pwm.yaml
new file mode 100644
index 000000000000..4908f004651b
--- /dev/null
+++ b/Documentation/devicetree/bindings/pwm/renesas,tpu-pwm.yaml
@@ -0,0 +1,69 @@
+# SPDX-License-Identifier: GPL-2.0
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/pwm/renesas,tpu-pwm.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Renesas R-Car Timer Pulse Unit PWM Controller
+
+maintainers:
+  - Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
+
+properties:
+  compatible:
+    items:
+      - enum:
+          - renesas,tpu-r8a73a4   # R-Mobile APE6
+          - renesas,tpu-r8a7740   # R-Mobile A1
+          - renesas,tpu-r8a7743   # RZ/G1M
+          - renesas,tpu-r8a7744   # RZ/G1N
+          - renesas,tpu-r8a7745   # RZ/G1E
+          - renesas,tpu-r8a7790   # R-Car H2
+          - renesas,tpu-r8a7795   # R-Car H3
+          - renesas,tpu-r8a7796   # R-Car M3-W
+          - renesas,tpu-r8a77965  # R-Car M3-N
+          - renesas,tpu-r8a77970  # R-Car V3M
+          - renesas,tpu-r8a77980  # R-Car V3H
+      - const: renesas,tpu
+
+  reg:
+    # Base address and length of each memory resource used by the PWM
+    # controller hardware module.
+    maxItems: 1
+
+  interrupts:
+    maxItems: 1
+
+  '#pwm-cells':
+    # should be 3. See pwm.txt in this directory for a description of
+    # the cells format. The only third cell flag supported by this binding is
+    # PWM_POLARITY_INVERTED.
+    const: 3
+
+  clocks:
+    maxItems: 1
+
+  power-domains:
+    maxItems: 1
+
+  resets:
+    maxItems: 1
+
+required:
+  - compatible
+  - reg
+  - '#pwm-cells'
+
+additionalProperties: false
+
+examples:
+  - |
+    #include <dt-bindings/clock/r8a7740-clock.h>
+
+    tpu: pwm@e6600000 {
+        compatible = "renesas,tpu-r8a7740", "renesas,tpu";
+        reg = <0xe6600000 0x148>;
+        clocks = <&mstp3_clks R8A7740_CLK_TPU0>;
+        power-domains = <&pd_a3sp>;
+        #pwm-cells = <3>;
+    };