--- zzzz-none-000/linux-3.10.107/Documentation/devicetree/bindings/i2c/i2c-imx.txt	2017-06-27 09:49:32.000000000 +0000
+++ scorpion-7490-727/linux-3.10.107/Documentation/devicetree/bindings/i2c/i2c-imx.txt	2021-02-04 17:41:59.000000000 +0000
@@ -1,13 +1,23 @@
 * Freescale Inter IC (I2C) and High Speed Inter IC (HS-I2C) for i.MX
 
 Required properties:
-- compatible : Should be "fsl,<chip>-i2c"
+- compatible :
+  - "fsl,imx1-i2c" for I2C compatible with the one integrated on i.MX1 SoC
+  - "fsl,imx21-i2c" for I2C compatible with the one integrated on i.MX21 SoC
+  - "fsl,vf610-i2c" for I2C compatible with the one integrated on Vybrid vf610 SoC
 - reg : Should contain I2C/HS-I2C registers location and length
 - interrupts : Should contain I2C/HS-I2C interrupt
+- clocks : Should contain the I2C/HS-I2C clock specifier
 
 Optional properties:
 - clock-frequency : Constains desired I2C/HS-I2C bus clock frequency in Hz.
   The absence of the propoerty indicates the default frequency 100 kHz.
+- dmas: A list of two dma specifiers, one for each entry in dma-names.
+- dma-names: should contain "tx" and "rx".
+- scl-gpios: specify the gpio related to SCL pin
+- sda-gpios: specify the gpio related to SDA pin
+- pinctrl: add extra pinctrl to configure i2c pins to gpio function for i2c
+  bus recovery, call it "gpio" state
 
 Examples:
 
@@ -23,3 +33,17 @@
 	interrupts = <64>;
 	clock-frequency = <400000>;
 };
+
+i2c0: i2c@40066000 { /* i2c0 on vf610 */
+	compatible = "fsl,vf610-i2c";
+	reg = <0x40066000 0x1000>;
+	interrupts =<0 71 0x04>;
+	dmas = <&edma0 0 50>,
+		<&edma0 0 51>;
+	dma-names = "rx","tx";
+	pinctrl-names = "default", "gpio";
+	pinctrl-0 = <&pinctrl_i2c1>;
+	pinctrl-1 = <&pinctrl_i2c1_gpio>;
+	scl-gpios = <&gpio5 26 GPIO_ACTIVE_HIGH>;
+	sda-gpios = <&gpio5 27 GPIO_ACTIVE_HIGH>;
+};