Add yaml file to replace txt file, and added description and
example of reset attribute for Spreadtrum I2C controller.
Signed-off-by: Huangzheng Lai <Huangzheng.Lai@xxxxxxxxxx>
---
.../devicetree/bindings/i2c/i2c-sprd.txt | 31 --------
.../devicetree/bindings/i2c/i2c-sprd.yaml | 79 +++++++++++++++++++
2 files changed, 79 insertions(+), 31 deletions(-)
delete mode 100644 Documentation/devicetree/bindings/i2c/i2c-sprd.txt
create mode 100644 Documentation/devicetree/bindings/i2c/i2c-sprd.yaml
diff --git a/Documentation/devicetree/bindings/i2c/i2c-sprd.txt b/Documentation/devicetree/bindings/i2c/i2c-sprd.txt
deleted file mode 100644
index 7b6b3b8d0d11..000000000000
--- a/Documentation/devicetree/bindings/i2c/i2c-sprd.txt
+++ /dev/null
@@ -1,31 +0,0 @@
-I2C for Spreadtrum platforms
-
-Required properties:
-- compatible: Should be "sprd,sc9860-i2c".
-- reg: Specify the physical base address of the controller and length
- of memory mapped region.
-- interrupts: Should contain I2C interrupt.
-- clock-names: Should contain following entries:
- "i2c" for I2C clock,
- "source" for I2C source (parent) clock,
- "enable" for I2C module enable clock.
-- clocks: Should contain a clock specifier for each entry in clock-names.
-- clock-frequency: Contains desired I2C bus clock frequency in Hz.
-- #address-cells: Should be 1 to describe address cells for I2C device address.
-- #size-cells: Should be 0 means no size cell for I2C device address.
-
-Optional properties:
-- Child nodes conforming to I2C bus binding
-
-Examples:
-i2c0: i2c@70500000 {
- compatible = "sprd,sc9860-i2c";
- reg = <0 0x70500000 0 0x1000>;
- interrupts = <GIC_SPI 11 IRQ_TYPE_LEVEL_HIGH>;
- clock-names = "i2c", "source", "enable";
- clocks = <&clk_i2c3>, <&ext_26m>, <&clk_ap_apb_gates 11>;
- clock-frequency = <400000>;
- #address-cells = <1>;
- #size-cells = <0>;
-};
-
diff --git a/Documentation/devicetree/bindings/i2c/i2c-sprd.yaml b/Documentation/devicetree/bindings/i2c/i2c-sprd.yaml
new file mode 100644
index 000000000000..54378afe8419
--- /dev/null
+++ b/Documentation/devicetree/bindings/i2c/i2c-sprd.yaml
@@ -0,0 +1,79 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+# Copyright 2020 Unisoc Inc.
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/i2c/i2c-sprd.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Unisoc I2C Controller Device
+
+maintainers:
+ - Huangzheng Lai <laihuangzheng@xxxxxxxxx>
+
+properties:
+ compatible:
+ items:
+ - const: sprd,sc9860-i2c
+
+ reg:
+ maxItems: 2
+
+ interrupts:
+ maxItems: 1
+
+ clock-names:
+ items:
+ - const: i2c
+ - const: source
+ - const: enable
+
+ clocks:
+ items:
+ - description: Clock specifier for "i2c" in clock-names
+ - description: Clock specifier for "source" in clock-names
+ - description: Clock specifier for "enable" in clock-names
+
+ clock-frequency:
+ description: Constains desired I2C bus clock frequency in Hz
+
+ "#address-cells":
+ const: 1
+ description: Address cells for I2C device address
+
+ "#size-cells":
+ const: 0
+ description: Size cell for I2C device address
+
+ reset-names:
+ const: i2c_rst
+
+ resets:
+ maxItems: 1
+ description: Phandle to the reset controller.
+
+required:
+ - compatible
+ - reg
+ - interrupts
+ - clock-names
+ - clocks
+ - "#address-cells"
+ - "#size-cells"
+
+additionalProperties: false
+
+examples:
+ - |
+ i2c0: i2c@2240000 {
+ compatible = "sprd,sc9860-i2c";
+ reg = <0 0x2240000 0 0x1000>;
+ interrupts = <11>;
+ clock-names = "i2c", "source", "enable";
+ clocks = <&clk_i2c3>, <&ext_26m>, <&clk_ap_apb_gates 11>;
+ clock-frequency = <400000>;
+ #address-cells = <1>;
+ #size-cells = <0>;
+ reset-names = "i2c_rst";
+ resets = <&apahb_gate 3>;
+ };
+
--
2.17.1
