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Message-Id: <20240528202025.2919358-1-Frank.Li@nxp.com>
Date: Tue, 28 May 2024 16:20:24 -0400
From: Frank Li <Frank.Li@....com>
To: Uwe Kleine-König <ukleinek@...nel.org>,
Rob Herring <robh@...nel.org>,
Krzysztof Kozlowski <krzk+dt@...nel.org>,
Conor Dooley <conor+dt@...nel.org>,
linux-pwm@...r.kernel.org (open list:PWM SUBSYSTEM),
devicetree@...r.kernel.org (open list:OPEN FIRMWARE AND FLATTENED DEVICE TREE BINDINGS),
linux-kernel@...r.kernel.org (open list)
Cc: imx@...ts.linux.dev
Subject: [PATCH 1/1] dt-bindings: pwm: fsl-ftm: Convert to yaml format
Convert dt-bindings pwm-fsl-ftm.txt to yaml format.
Additional change during convert:
- "big-endian" is not required property.
- Add "sleep" to pinctrl-names.
- Change pinctrl-NNN to pinctrl-0 and pinctrl-1.
- Remove label "pwm0" in example.
Signed-off-by: Frank Li <Frank.Li@....com>
---
Notes:
pass dt_binding_check:
make dt_binding_check DT_SCHEMA_FILES=fsl,vf610-ftm-pwm.yaml
SCHEMA Documentation/devicetree/bindings/processed-schema.json
CHKDT Documentation/devicetree/bindings
LINT Documentation/devicetree/bindings
DTEX Documentation/devicetree/bindings/pwm/fsl,vf610-ftm-pwm.example.dts
DTC_CHK Documentation/devicetree/bindings/pwm/fsl,vf610-ftm-pwm.example.dtb
.../bindings/pwm/fsl,vf610-ftm-pwm.yaml | 92 +++++++++++++++++++
.../devicetree/bindings/pwm/pwm-fsl-ftm.txt | 55 -----------
2 files changed, 92 insertions(+), 55 deletions(-)
create mode 100644 Documentation/devicetree/bindings/pwm/fsl,vf610-ftm-pwm.yaml
delete mode 100644 Documentation/devicetree/bindings/pwm/pwm-fsl-ftm.txt
diff --git a/Documentation/devicetree/bindings/pwm/fsl,vf610-ftm-pwm.yaml b/Documentation/devicetree/bindings/pwm/fsl,vf610-ftm-pwm.yaml
new file mode 100644
index 0000000000000..7f9f72d95e7a3
--- /dev/null
+++ b/Documentation/devicetree/bindings/pwm/fsl,vf610-ftm-pwm.yaml
@@ -0,0 +1,92 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/pwm/fsl,vf610-ftm-pwm.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Freescale FlexTimer Module (FTM) PWM controller
+
+description: |
+ The same FTM PWM device can have a different endianness on different SoCs. The
+ device tree provides a property to describing this so that an operating system
+ device driver can handle all variants of the device. Refer to the table below
+ for the endianness of the FTM PWM block as integrated into the existing SoCs:
+
+ SoC | FTM-PWM endianness
+ --------+-------------------
+ Vybrid | LE
+ LS1 | BE
+ LS2 | LE
+
+ Please see ../regmap/regmap.txt for more detail about how to specify endian
+ modes in device tree.
+
+maintainers:
+ - Frank Li <Frank.Li@....com>
+
+properties:
+ compatible:
+ enum:
+ - fsl,vf610-ftm-pwm
+ - fsl,imx8qm-ftm-pwm
+
+ reg:
+ maxItems: 1
+
+ "#pwm-cells":
+ const: 3
+
+ clocks:
+ minItems: 4
+ maxItems: 4
+
+ clock-names:
+ items:
+ - const: ftm_sys
+ - const: ftm_ext
+ - const: ftm_fix
+ - const: ftm_cnt_clk_en
+
+ pinctrl-0: true
+ pinctrl-1: true
+
+ pinctrl-names:
+ minItems: 1
+ items:
+ - const: default
+ - const: sleep
+
+ big-endian:
+ $ref: /schemas/types.yaml#/definitions/flag
+ description:
+ Boolean property, required if the FTM PWM registers use a big-
+ endian rather than little-endian layout.
+
+required:
+ - compatible
+ - reg
+ - clocks
+ - clock-names
+
+allOf:
+ - $ref: pwm.yaml#
+
+unevaluatedProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/clock/vf610-clock.h>
+
+ pwm@...38000 {
+ compatible = "fsl,vf610-ftm-pwm";
+ reg = <0x40038000 0x1000>;
+ #pwm-cells = <3>;
+ clocks = <&clks VF610_CLK_FTM0>,
+ <&clks VF610_CLK_FTM0_EXT_SEL>,
+ <&clks VF610_CLK_FTM0_FIX_SEL>,
+ <&clks VF610_CLK_FTM0_EXT_FIX_EN>;
+ clock-names = "ftm_sys", "ftm_ext", "ftm_fix", "ftm_cnt_clk_en";
+ pinctrl-names = "default";
+ pinctrl-0 = <&pinctrl_pwm0_1>;
+ big-endian;
+ };
diff --git a/Documentation/devicetree/bindings/pwm/pwm-fsl-ftm.txt b/Documentation/devicetree/bindings/pwm/pwm-fsl-ftm.txt
deleted file mode 100644
index 36532cd5ab25b..0000000000000
--- a/Documentation/devicetree/bindings/pwm/pwm-fsl-ftm.txt
+++ /dev/null
@@ -1,55 +0,0 @@
-Freescale FlexTimer Module (FTM) PWM controller
-
-The same FTM PWM device can have a different endianness on different SoCs. The
-device tree provides a property to describing this so that an operating system
-device driver can handle all variants of the device. Refer to the table below
-for the endianness of the FTM PWM block as integrated into the existing SoCs:
-
- SoC | FTM-PWM endianness
- --------+-------------------
- Vybrid | LE
- LS1 | BE
- LS2 | LE
-
-Please see ../regmap/regmap.txt for more detail about how to specify endian
-modes in device tree.
-
-
-Required properties:
-- compatible : should be "fsl,<soc>-ftm-pwm" and one of the following
- compatible strings:
- - "fsl,vf610-ftm-pwm" for PWM compatible with the one integrated on VF610
- - "fsl,imx8qm-ftm-pwm" for PWM compatible with the one integrated on i.MX8QM
-- 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.
-- clock-names: Should include the following module clock source entries:
- "ftm_sys" (module clock, also can be used as counter clock),
- "ftm_ext" (external counter clock),
- "ftm_fix" (fixed counter clock),
- "ftm_cnt_clk_en" (external and fixed counter clock enable/disable).
-- clocks: Must contain a phandle and clock specifier for each entry in
- clock-names, please see clock/clock-bindings.txt for details of the property
- values.
-- pinctrl-names: Must contain a "default" entry.
-- pinctrl-NNN: One property must exist for each entry in pinctrl-names.
- See pinctrl/pinctrl-bindings.txt for details of the property values.
-- big-endian: Boolean property, required if the FTM PWM registers use a big-
- endian rather than little-endian layout.
-
-Example:
-
-pwm0: pwm@...38000 {
- compatible = "fsl,vf610-ftm-pwm";
- reg = <0x40038000 0x1000>;
- #pwm-cells = <3>;
- clock-names = "ftm_sys", "ftm_ext",
- "ftm_fix", "ftm_cnt_clk_en";
- clocks = <&clks VF610_CLK_FTM0>,
- <&clks VF610_CLK_FTM0_EXT_SEL>,
- <&clks VF610_CLK_FTM0_FIX_SEL>,
- <&clks VF610_CLK_FTM0_EXT_FIX_EN>;
- pinctrl-names = "default";
- pinctrl-0 = <&pinctrl_pwm0_1>;
- big-endian;
-};
--
2.34.1
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