[PATCH] dt-bindings: gpio: Convert mxs to json-schema
From: Anson Huang
Date: Tue May 19 2020 - 20:30:29 EST
Convert the MXS GPIO binding to DT schema format using json-schema.
Signed-off-by: Anson Huang <Anson.Huang@xxxxxxx>
---
.../devicetree/bindings/gpio/gpio-mxs.txt | 88 -------------
.../devicetree/bindings/gpio/gpio-mxs.yaml | 136 +++++++++++++++++++++
2 files changed, 136 insertions(+), 88 deletions(-)
delete mode 100644 Documentation/devicetree/bindings/gpio/gpio-mxs.txt
create mode 100644 Documentation/devicetree/bindings/gpio/gpio-mxs.yaml
diff --git a/Documentation/devicetree/bindings/gpio/gpio-mxs.txt b/Documentation/devicetree/bindings/gpio/gpio-mxs.txt
deleted file mode 100644
index 1e677a4..0000000
--- a/Documentation/devicetree/bindings/gpio/gpio-mxs.txt
+++ /dev/null
@@ -1,88 +0,0 @@
-* Freescale MXS GPIO controller
-
-The Freescale MXS GPIO controller is part of MXS PIN controller. The
-GPIOs are organized in port/bank. Each port consists of 32 GPIOs.
-
-As the GPIO controller is embedded in the PIN controller and all the
-GPIO ports share the same IO space with PIN controller, the GPIO node
-will be represented as sub-nodes of MXS pinctrl node.
-
-Required properties for GPIO node:
-- compatible : Should be "fsl,<soc>-gpio". The supported SoCs include
- imx23 and imx28.
-- interrupts : Should be the port interrupt shared by all 32 pins.
-- gpio-controller : Marks the device node as a gpio controller.
-- #gpio-cells : Should be two. The first cell is the pin number and
- the second cell is used to specify the gpio polarity:
- 0 = active high
- 1 = active low
-- interrupt-controller: Marks the device node as an interrupt controller.
-- #interrupt-cells : Should be 2. The first cell is the GPIO number.
- The second cell bits[3:0] is used to specify trigger type and level flags:
- 1 = low-to-high edge triggered.
- 2 = high-to-low edge triggered.
- 4 = active high level-sensitive.
- 8 = active low level-sensitive.
-
-Note: Each GPIO port should have an alias correctly numbered in "aliases"
-node.
-
-Examples:
-
-aliases {
- gpio0 = &gpio0;
- gpio1 = &gpio1;
- gpio2 = &gpio2;
- gpio3 = &gpio3;
- gpio4 = &gpio4;
-};
-
-pinctrl@80018000 {
- compatible = "fsl,imx28-pinctrl", "simple-bus";
- reg = <0x80018000 2000>;
-
- gpio0: gpio@0 {
- compatible = "fsl,imx28-gpio";
- interrupts = <127>;
- gpio-controller;
- #gpio-cells = <2>;
- interrupt-controller;
- #interrupt-cells = <2>;
- };
-
- gpio1: gpio@1 {
- compatible = "fsl,imx28-gpio";
- interrupts = <126>;
- gpio-controller;
- #gpio-cells = <2>;
- interrupt-controller;
- #interrupt-cells = <2>;
- };
-
- gpio2: gpio@2 {
- compatible = "fsl,imx28-gpio";
- interrupts = <125>;
- gpio-controller;
- #gpio-cells = <2>;
- interrupt-controller;
- #interrupt-cells = <2>;
- };
-
- gpio3: gpio@3 {
- compatible = "fsl,imx28-gpio";
- interrupts = <124>;
- gpio-controller;
- #gpio-cells = <2>;
- interrupt-controller;
- #interrupt-cells = <2>;
- };
-
- gpio4: gpio@4 {
- compatible = "fsl,imx28-gpio";
- interrupts = <123>;
- gpio-controller;
- #gpio-cells = <2>;
- interrupt-controller;
- #interrupt-cells = <2>;
- };
-};
diff --git a/Documentation/devicetree/bindings/gpio/gpio-mxs.yaml b/Documentation/devicetree/bindings/gpio/gpio-mxs.yaml
new file mode 100644
index 0000000..ccf5b50
--- /dev/null
+++ b/Documentation/devicetree/bindings/gpio/gpio-mxs.yaml
@@ -0,0 +1,136 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/gpio/gpio-mxs.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Freescale MXS GPIO controller
+
+maintainers:
+ - Shawn Guo <shawn.guo@xxxxxxxxxx>
+ - Anson Huang <Anson.Huang@xxxxxxx>
+
+description: |
+ The Freescale MXS GPIO controller is part of MXS PIN controller.
+ The GPIOs are organized in port/bank, each port consists of 32 GPIOs.
+ As the GPIO controller is embedded in the PIN controller and all the
+ GPIO ports share the same IO space with PIN controller, the GPIO node
+ will be represented as sub-nodes of MXS pinctrl node.
+
+properties:
+ compatible:
+ enum:
+ - fsl,imx23-pinctrl
+ - fsl,imx28-pinctrl
+
+ '#address-cells':
+ const: 1
+ '#size-cells':
+ const: 0
+
+ reg:
+ maxItems: 1
+
+patternProperties:
+ "gpio@[0-9]+$":
+ type: object
+ properties:
+ compatible:
+ enum:
+ - fsl,imx23-gpio
+ - fsl,imx28-gpio
+
+ reg:
+ maxItems: 1
+
+ interrupts:
+ description: Should be the port interrupt shared by all 32 pins.
+ maxItems: 1
+
+ interrupt-controller: true
+
+ "#interrupt-cells":
+ const: 2
+
+ "#gpio-cells":
+ const: 2
+
+ gpio-controller: true
+
+ required:
+ - compatible
+ - reg
+ - interrupts
+ - interrupt-controller
+ - "#interrupt-cells"
+ - "#gpio-cells"
+ - gpio-controller
+
+ additionalProperties: false
+
+required:
+ - compatible
+ - reg
+ - '#address-cells'
+ - '#size-cells'
+
+additionalProperties: false
+
+examples:
+ - |
+ pinctrl@80018000 {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ compatible = "fsl,imx28-pinctrl";
+ reg = <0x80018000 0x2000>;
+
+ gpio@0 {
+ compatible = "fsl,imx28-gpio";
+ reg = <0>;
+ interrupts = <127>;
+ gpio-controller;
+ #gpio-cells = <2>;
+ interrupt-controller;
+ #interrupt-cells = <2>;
+ };
+
+ gpio@1 {
+ compatible = "fsl,imx28-gpio";
+ reg = <1>;
+ interrupts = <126>;
+ gpio-controller;
+ #gpio-cells = <2>;
+ interrupt-controller;
+ #interrupt-cells = <2>;
+ };
+
+ gpio@2 {
+ compatible = "fsl,imx28-gpio";
+ reg = <2>;
+ interrupts = <125>;
+ gpio-controller;
+ #gpio-cells = <2>;
+ interrupt-controller;
+ #interrupt-cells = <2>;
+ };
+
+ gpio@3 {
+ compatible = "fsl,imx28-gpio";
+ reg = <3>;
+ interrupts = <124>;
+ gpio-controller;
+ #gpio-cells = <2>;
+ interrupt-controller;
+ #interrupt-cells = <2>;
+ };
+
+ gpio@4 {
+ compatible = "fsl,imx28-gpio";
+ reg = <4>;
+ interrupts = <123>;
+ gpio-controller;
+ #gpio-cells = <2>;
+ interrupt-controller;
+ #interrupt-cells = <2>;
+ };
+ };
--
2.7.4