[PATCH 2/2] dt-bindings: pwm: Convert imx tpm pwm to json-schema

From: Anson Huang
Date: Thu May 14 2020 - 03:03:59 EST


Convert the imx tpm pwm binding to DT schema format using json-schema.

Signed-off-by: Anson Huang <Anson.Huang@xxxxxxx>
---
.../devicetree/bindings/pwm/imx-tpm-pwm.txt | 22 ---------
.../devicetree/bindings/pwm/imx-tpm-pwm.yaml | 55 ++++++++++++++++++++++
2 files changed, 55 insertions(+), 22 deletions(-)
delete mode 100644 Documentation/devicetree/bindings/pwm/imx-tpm-pwm.txt
create mode 100644 Documentation/devicetree/bindings/pwm/imx-tpm-pwm.yaml

diff --git a/Documentation/devicetree/bindings/pwm/imx-tpm-pwm.txt b/Documentation/devicetree/bindings/pwm/imx-tpm-pwm.txt
deleted file mode 100644
index 5bf2095..0000000
--- a/Documentation/devicetree/bindings/pwm/imx-tpm-pwm.txt
+++ /dev/null
@@ -1,22 +0,0 @@
-Freescale i.MX TPM PWM controller
-
-Required properties:
-- compatible : Should be "fsl,imx7ulp-pwm".
-- reg: Physical base address and length of the controller's registers.
-- #pwm-cells: Should be 3. See pwm.yaml in this directory for a description of the cells format.
-- clocks : The clock provided by the SoC to drive the PWM.
-- interrupts: The interrupt for the PWM controller.
-
-Note: The TPM counter and period counter are shared between multiple channels, so all channels
-should use same period setting.
-
-Example:
-
-tpm4: pwm@40250000 {
- compatible = "fsl,imx7ulp-pwm";
- reg = <0x40250000 0x1000>;
- assigned-clocks = <&pcc2 IMX7ULP_CLK_LPTPM4>;
- assigned-clock-parents = <&scg1 IMX7ULP_CLK_SOSC_BUS_CLK>;
- clocks = <&pcc2 IMX7ULP_CLK_LPTPM4>;
- #pwm-cells = <3>;
-};
diff --git a/Documentation/devicetree/bindings/pwm/imx-tpm-pwm.yaml b/Documentation/devicetree/bindings/pwm/imx-tpm-pwm.yaml
new file mode 100644
index 0000000..fe9ef42
--- /dev/null
+++ b/Documentation/devicetree/bindings/pwm/imx-tpm-pwm.yaml
@@ -0,0 +1,55 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/pwm/imx-tpm-pwm.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Freescale i.MX TPM PWM controller
+
+maintainers:
+ - Anson Huang <anson.huang@xxxxxxx>
+
+description: |
+ The TPM counter and period counter are shared between multiple
+ channels, so all channels should use same period setting.
+
+properties:
+ "#pwm-cells":
+ const: 3
+
+ compatible:
+ enum:
+ - fsl,imx7ulp-pwm
+
+ reg:
+ maxItems: 1
+
+ assigned-clocks:
+ maxItems: 1
+
+ assigned-clock-parents:
+ maxItems: 1
+
+ clocks:
+ maxItems: 1
+
+required:
+ - "#pwm-cells"
+ - compatible
+ - reg
+ - clocks
+
+additionalProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/clock/imx7ulp-clock.h>
+
+ pwm@40250000 {
+ compatible = "fsl,imx7ulp-pwm";
+ reg = <0x40250000 0x1000>;
+ assigned-clocks = <&pcc2 IMX7ULP_CLK_LPTPM4>;
+ assigned-clock-parents = <&scg1 IMX7ULP_CLK_SOSC_BUS_CLK>;
+ clocks = <&pcc2 IMX7ULP_CLK_LPTPM4>;
+ #pwm-cells = <3>;
+ };
--
2.7.4