[PATCH v2 4/5] dt-binding: i2c: add bindings for mediatek i2c driver

[mingming lee <mingming.lee@mediatek.com>]

From: Mingming Lee <Mingming.Lee@mediatek.com>

add bindings for mediatek i2c driver

Signed-off-by: Mingming Lee <Mingming.Lee@mediatek.com>
---
 doc/device-tree-bindings/i2c/i2c-mtk.txt | 39 ++++++++++++++++++++++++
 1 file changed, 39 insertions(+)
 create mode 100644 doc/device-tree-bindings/i2c/i2c-mtk.txt

diff --git a/doc/device-tree-bindings/i2c/i2c-mtk.txt b/doc/device-tree-bindings/i2c/i2c-mtk.txt
new file mode 100644
index 0000000000..10a3f29a1e
--- /dev/null
+++ b/doc/device-tree-bindings/i2c/i2c-mtk.txt
@@ -0,0 +1,39 @@
+I2C for Mediatek platforms
+
+Required properties :
+- compatible : Must be "mediatek,mt8512-i2c"
+- reg: physical base address of the controller and length of memory mapped
+     region.
+- #address-cells = <1>;
+- #size-cells = <0>;
+- clocks: phandles to input clocks.
+- clock-names : Contains the names of the clocks:
+   "main", the clock used for normal mode I2C.
+   "dma", the clock used for apdma mode I2C.
+- status : enable in requried dts or not.
+
+Examples :
+
+	i2c0: i2c at 11007000 {
+		compatible = "mediatek,mt8512-i2c";
+		reg = <0x11007000 0x1000>,
+			  <0x11000080 0x80>;
+		clocks = <&infracfg CLK_INFRA_I2C0_AXI>,
+					<&infracfg CLK_INFRA_AP_DMA>;
+		clock-names = "main", "dma";
+		#address-cells = <1>;
+		#size-cells = <0>;
+		status = "disabled";
+	};
+
+	i2c1: i2c at 10019000 {
+		compatible = "mediatek,mt8512-i2c";
+		reg = <0x10019000 0x1000>,
+			  <0x11000100 0x80>;
+		clocks = <&infracfg CLK_INFRA_I2C1_AXI>,
+				<&infracfg CLK_INFRA_AP_DMA>;
+		clock-names = "main", "dma";
+		#address-cells = <1>;
+		#size-cells = <0>;
+		status = "disabled";
+	};
\ No newline at end of file
-- 
2.18.0