dm: i2c: dts: Add gpios and pinctrl device tree properties
The commit describe usage of gpios and pinctrl device tree
properties in order to enable gpio-based software deblocking.
Signed-off-by: Alexander Kochetkov <al.kochet@gmail.com>
diff --git a/doc/device-tree-bindings/i2c/i2c.txt b/doc/device-tree-bindings/i2c/i2c.txt
index ea918dd..de818d4 100644
--- a/doc/device-tree-bindings/i2c/i2c.txt
+++ b/doc/device-tree-bindings/i2c/i2c.txt
@@ -12,6 +12,11 @@
Optional properties:
- u-boot,i2c-offset-len - length of chip offset in bytes. If omitted the
default value of 1 is used.
+- gpios = <sda ...>, <scl ...>;
+ pinctrl-names = "default", "gpio";
+ pinctrl-0 = <&i2c_xfer>;
+ pinctrl-1 = <&i2c_gpio>;
+ Pin description for I2C bus software deblocking.
Example
@@ -26,3 +31,11 @@
ec-interrupt = <&gpx1 6 GPIO_ACTIVE_LOW>;
};
};
+
+&i2c1 {
+ pinctrl-names = "default", "gpio";
+ pinctrl-0 = <&i2c1_xfer>;
+ pinctrl-1 = <&i2c1_gpio>;
+ gpios = <&gpio1 26 GPIO_ACTIVE_LOW>, /* SDA */
+ <&gpio1 27 GPIO_ACTIVE_LOW>; /* SCL */
+};