[PATCH 5/8] pwm: dt-bindings: ti,twl-pwm: convert to DT schema

[Jihed Chaibi <jihed.chaibi.dev@gmail.com>]

Convert the legacy TXT binding for the TWL-family PWM controller
to the modern YAML DT schema format. This adds formal validation
and improves documentation by inheriting from the base pwm schema.

Signed-off-by: Jihed Chaibi <jihed.chaibi.dev@gmail.com>
---
 .../devicetree/bindings/pwm/ti,twl-pwm.txt    | 17 -------
 .../devicetree/bindings/pwm/ti,twl-pwm.yaml   | 46 +++++++++++++++++++
 2 files changed, 46 insertions(+), 17 deletions(-)
 delete mode 100644 Documentation/devicetree/bindings/pwm/ti,twl-pwm.txt
 create mode 100644 Documentation/devicetree/bindings/pwm/ti,twl-pwm.yaml

diff --git a/Documentation/devicetree/bindings/pwm/ti,twl-pwm.txt b/Documentation/devicetree/bindings/pwm/ti,twl-pwm.txt
deleted file mode 100644
index d97ca1964..000000000
--- a/Documentation/devicetree/bindings/pwm/ti,twl-pwm.txt
+++ /dev/null
@@ -1,17 +0,0 @@
-Texas Instruments TWL series PWM drivers
-
-Supported PWMs:
-On TWL4030 series: PWM1 and PWM2
-On TWL6030 series: PWM0 and PWM1
-
-Required properties:
-- compatible: "ti,twl4030-pwm" or "ti,twl6030-pwm"
-- #pwm-cells: should be 2. See pwm.yaml in this directory for a description of
-  the cells format.
-
-Example:
-
-twl_pwm: pwm {
-	compatible = "ti,twl6030-pwm";
-	#pwm-cells = <2>;
-};
diff --git a/Documentation/devicetree/bindings/pwm/ti,twl-pwm.yaml b/Documentation/devicetree/bindings/pwm/ti,twl-pwm.yaml
new file mode 100644
index 000000000..5bbbdc13a
--- /dev/null
+++ b/Documentation/devicetree/bindings/pwm/ti,twl-pwm.yaml
@@ -0,0 +1,46 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/pwm/ti,twl-pwm.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Texas Instruments TWL4030/TWL6030 family PWM controller
+
+maintainers:
+  - Peter Ujfalusi <peter.ujfalusi@gmail.com>
+
+description: |
+  Bindings for the following PWM controllers :
+    TWL4030 series: PWMA and PWMB (connected to LEDA and LEDB terminals)
+    TWL6030 series: LED PWM (mainly used as charging indicator LED)
+
+allOf:
+  - $ref: /schemas/pwm/pwm.yaml#
+
+properties:
+  compatible:
+    enum:
+      - ti,twl4030-pwm
+      - ti,twl6030-pwm
+
+  '#pwm-cells':
+    const: 2
+
+required:
+  - compatible
+  - '#pwm-cells'
+
+unevaluatedProperties: false
+
+examples:
+  - |
+    pwm {
+        compatible = "ti,twl4030-pwm";
+        #pwm-cells = <2>;
+    };
+
+  - |
+    pwm {
+        compatible = "ti,twl6030-pwm";
+        #pwm-cells = <2>;
+    };
-- 
2.39.5