linux-kernel - [PATCH V2 1/3] dt-bindings: i2c: Convert imx lpi2c to json-schema

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Date:   Thu,  4 Jun 2020 09:49:16 +0800
From:   Anson Huang <Anson.Huang@....com>
To:     aisheng.dong@....com, robh+dt@...nel.org, shawnguo@...nel.org,
        s.hauer@...gutronix.de, kernel@...gutronix.de, festevam@...il.com,
        linux@...pel-privat.de, wolfram@...-dreams.de,
        linux-i2c@...r.kernel.org, devicetree@...r.kernel.org,
        linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org
Cc:     Linux-imx@....com
Subject: [PATCH V2 1/3] dt-bindings: i2c: Convert imx lpi2c to json-schema

Convert the i.MX LPI2C binding to DT schema format using json-schema

Signed-off-by: Anson Huang <Anson.Huang@....com>
---
Changes since V1:
	- add "additionalProperties: false".
---
 .../devicetree/bindings/i2c/i2c-imx-lpi2c.txt      | 20 ---------
 .../devicetree/bindings/i2c/i2c-imx-lpi2c.yaml     | 47 ++++++++++++++++++++++
 2 files changed, 47 insertions(+), 20 deletions(-)
 delete mode 100644 Documentation/devicetree/bindings/i2c/i2c-imx-lpi2c.txt
 create mode 100644 Documentation/devicetree/bindings/i2c/i2c-imx-lpi2c.yaml

diff --git a/Documentation/devicetree/bindings/i2c/i2c-imx-lpi2c.txt b/Documentation/devicetree/bindings/i2c/i2c-imx-lpi2c.txt
deleted file mode 100644
index f0c072f..0000000
--- a/Documentation/devicetree/bindings/i2c/i2c-imx-lpi2c.txt
+++ /dev/null
@@ -1,20 +0,0 @@
-* Freescale Low Power Inter IC (LPI2C) for i.MX
-
-Required properties:
-- compatible :
-  - "fsl,imx7ulp-lpi2c" for LPI2C compatible with the one integrated on i.MX7ULP soc
-  - "fsl,imx8qxp-lpi2c" for LPI2C compatible with the one integrated on i.MX8QXP soc
-  - "fsl,imx8qm-lpi2c" for LPI2C compatible with the one integrated on i.MX8QM soc
-- reg : address and length of the lpi2c master registers
-- interrupts : lpi2c interrupt
-- clocks : lpi2c clock specifier
-
-Examples:
-
-lpi2c7: lpi2c7@...50000 {
-	compatible = "fsl,imx7ulp-lpi2c";
-	reg = <0x40A50000 0x10000>;
-	interrupt-parent = <&intc>;
-	interrupts = <GIC_SPI 37 IRQ_TYPE_LEVEL_HIGH>;
-	clocks = <&clks IMX7ULP_CLK_LPI2C7>;
-};
diff --git a/Documentation/devicetree/bindings/i2c/i2c-imx-lpi2c.yaml b/Documentation/devicetree/bindings/i2c/i2c-imx-lpi2c.yaml
new file mode 100644
index 0000000..ac0bc5d
--- /dev/null
+++ b/Documentation/devicetree/bindings/i2c/i2c-imx-lpi2c.yaml
@@ -0,0 +1,47 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/i2c/i2c-imx-lpi2c.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Freescale Low Power Inter IC (LPI2C) for i.MX
+
+maintainers:
+  - Anson Huang <Anson.Huang@....com>
+
+properties:
+  compatible:
+    enum:
+      - fsl,imx7ulp-lpi2c
+      - fsl,imx8qxp-lpi2c
+      - fsl,imx8qm-lpi2c
+
+  reg:
+    maxItems: 1
+
+  interrupts:
+    maxItems: 1
+
+  clocks:
+    maxItems: 1
+
+required:
+  - compatible
+  - reg
+  - interrupts
+  - clocks
+
+additionalProperties: false
+
+examples:
+  - |
+    #include <dt-bindings/clock/imx7ulp-clock.h>
+    #include <dt-bindings/interrupt-controller/arm-gic.h>
+
+    lpi2c7@...50000 {
+        compatible = "fsl,imx7ulp-lpi2c";
+        reg = <0x40A50000 0x10000>;
+        interrupt-parent = <&intc>;
+        interrupts = <GIC_SPI 37 IRQ_TYPE_LEVEL_HIGH>;
+        clocks = <&clks IMX7ULP_CLK_LPI2C7>;
+    };
-- 
2.7.4