rampis: HLK-RM04 - Setup I2C as GPIO

[openwrt.git] / target / linux / ramips / dts / HLKRM04.dts

diff --git a/target/linux/ramips/dts/HLKRM04.dts b/target/linux/ramips/dts/HLKRM04.dts
index 5f43642..713b51f 100644 (file)
--- a/target/linux/ramips/dts/HLKRM04.dts
+++ b/target/linux/ramips/dts/HLKRM04.dts
@@ -60,7 +60,7 @@
        pinctrl {
                state_default: pinctrl0 {
                        gpio {
-                               ralink,group = "jtag";
+                               ralink,group = "i2c", "jtag";
                                ralink,function = "gpio";
                        };
                };
@@ -82,6 +82,25 @@
                status = "okay";
        };
 
+       gpio-export {
+               compatible = "gpio-export";
+               #size-cells = <0>;
+
+               /* I2C */
+               gpio1 {
+                       /* I2C_I2C_SD */
+                       gpio-export,name = "hlk-rm04:gpio0";
+                       gpio-export,direction_may_change = <1>;
+                       gpios = <&gpio0 1 0>;
+               };
+               gpio2 {
+                       /* I2C_I2C_SCLK */
+                       gpio-export,name = "hlk-rm04:gpio1";
+                       gpio-export,direction_may_change = <1>;
+                       gpios = <&gpio0 2 0>;
+               };
+       };
+
        gpio-keys-polled {
                compatible = "gpio-keys-polled";
                #address-cells = <1>;