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Date: Thu, 14 May 2020 14:54:18 +0800
From: Anson Huang <Anson.Huang@....com>
To: thierry.reding@...il.com, u.kleine-koenig@...gutronix.de,
robh+dt@...nel.org, shawnguo@...nel.org, s.hauer@...gutronix.de,
kernel@...gutronix.de, festevam@...il.com, p.zabel@...gutronix.de,
linux-pwm@...r.kernel.org, devicetree@...r.kernel.org,
linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org
Cc: Linux-imx@....com
Subject: [PATCH 1/2] dt-bindings: pwm: Convert imx pwm to json-schema
Convert the imx pwm binding to DT schema format using json-schema.
Signed-off-by: Anson Huang <Anson.Huang@....com>
---
Documentation/devicetree/bindings/pwm/imx-pwm.txt | 27 ---------
Documentation/devicetree/bindings/pwm/imx-pwm.yaml | 66 ++++++++++++++++++++++
2 files changed, 66 insertions(+), 27 deletions(-)
delete mode 100644 Documentation/devicetree/bindings/pwm/imx-pwm.txt
create mode 100644 Documentation/devicetree/bindings/pwm/imx-pwm.yaml
diff --git a/Documentation/devicetree/bindings/pwm/imx-pwm.txt b/Documentation/devicetree/bindings/pwm/imx-pwm.txt
deleted file mode 100644
index 22f1c3d..0000000
--- a/Documentation/devicetree/bindings/pwm/imx-pwm.txt
+++ /dev/null
@@ -1,27 +0,0 @@
-Freescale i.MX PWM controller
-
-Required properties:
-- compatible : should be "fsl,<soc>-pwm" and one of the following
- compatible strings:
- - "fsl,imx1-pwm" for PWM compatible with the one integrated on i.MX1
- - "fsl,imx27-pwm" for PWM compatible with the one integrated on i.MX27
-- reg: physical base address and length of the controller's registers
-- #pwm-cells: 2 for i.MX1 and 3 for i.MX27 and newer SoCs. See pwm.yaml
- in this directory for a description of the cells format.
-- clocks : Clock specifiers for both ipg and per clocks.
-- clock-names : Clock names should include both "ipg" and "per"
-See the clock consumer binding,
- Documentation/devicetree/bindings/clock/clock-bindings.txt
-- interrupts: The interrupt for the pwm controller
-
-Example:
-
-pwm1: pwm@...b4000 {
- #pwm-cells = <3>;
- compatible = "fsl,imx53-pwm", "fsl,imx27-pwm";
- reg = <0x53fb4000 0x4000>;
- clocks = <&clks IMX5_CLK_PWM1_IPG_GATE>,
- <&clks IMX5_CLK_PWM1_HF_GATE>;
- clock-names = "ipg", "per";
- interrupts = <61>;
-};
diff --git a/Documentation/devicetree/bindings/pwm/imx-pwm.yaml b/Documentation/devicetree/bindings/pwm/imx-pwm.yaml
new file mode 100644
index 0000000..4b62af2
--- /dev/null
+++ b/Documentation/devicetree/bindings/pwm/imx-pwm.yaml
@@ -0,0 +1,66 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/pwm/imx-pwm.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Freescale i.MX PWM controller
+
+maintainers:
+ - Philipp Zabel <p.zabel@...gutronix.de>
+
+properties:
+ "#pwm-cells":
+ description: |
+ Should be 2 for i.MX1 and 3 for i.MX27 and newer SoCs. See pwm.yaml
+ in this directory for a description of the cells format.
+ enum:
+ - 2
+ - 3
+
+ compatible:
+ enum:
+ - fsl,imx1-pwm
+ - fsl,imx27-pwm
+
+ reg:
+ maxItems: 1
+
+ clocks:
+ items:
+ - description: SoC PWM ipg clock
+ - description: SoC PWM per clock
+ maxItems: 2
+
+ clock-names:
+ items:
+ - const: ipg
+ - const: per
+ maxItems: 2
+
+ interrupts:
+ maxItems: 1
+
+required:
+ - "#pwm-cells"
+ - compatible
+ - reg
+ - clocks
+ - clock-names
+ - interrupts
+
+additionalProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/clock/imx5-clock.h>
+
+ pwm@...b4000 {
+ #pwm-cells = <3>;
+ compatible = "fsl,imx27-pwm";
+ reg = <0x53fb4000 0x4000>;
+ clocks = <&clks IMX5_CLK_PWM1_IPG_GATE>,
+ <&clks IMX5_CLK_PWM1_HF_GATE>;
+ clock-names = "ipg", "per";
+ interrupts = <61>;
+ };
--
2.7.4
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