--- zzzz-none-000/linux-3.10.107/Documentation/devicetree/bindings/i2c/i2c-davinci.txt	2017-06-27 09:49:32.000000000 +0000
+++ scorpion-7490-727/linux-3.10.107/Documentation/devicetree/bindings/i2c/i2c-davinci.txt	2021-02-04 17:41:59.000000000 +0000
@@ -1,15 +1,18 @@
-* Texas Instruments Davinci I2C
+* Texas Instruments Davinci/Keystone I2C
 
 This file provides information, what the device node for the
-davinci i2c interface contain.
+davinci/keystone i2c interface contains.
 
 Required properties:
-- compatible: "ti,davinci-i2c";
+- compatible: "ti,davinci-i2c" or "ti,keystone-i2c";
 - reg : Offset and length of the register set for the device
 
 Recommended properties :
 - interrupts : standard interrupt property.
 - clock-frequency : desired I2C bus clock frequency in Hz.
+- ti,has-pfunc: boolean; if defined, it indicates that SoC supports PFUNC
+	registers. PFUNC registers allow to switch I2C pins to function as
+	GPIOs, so they can by toggled manually.
 
 Example (enbw_cmc board):
 	i2c@1c22000 {