Document the pinctrl property for bus recovery.
Signed-off-by: Jisheng Zhang <Jisheng.Zhang@xxxxxxxxxxxxx>
---
Documentation/devicetree/bindings/i2c/i2c-designware.txt | 6 ++++++
1 file changed, 6 insertions(+)
diff --git a/Documentation/devicetree/bindings/i2c/i2c-designware.txt b/Documentation/devicetree/bindings/i2c/i2c-designware.txt
index 1d6a6a8061ba..c1544d1f7b55 100644
--- a/Documentation/devicetree/bindings/i2c/i2c-designware.txt
+++ b/Documentation/devicetree/bindings/i2c/i2c-designware.txt
@@ -24,6 +24,9 @@ Optional properties :
- sda-gpios: specify the gpio of the SDA line for gpio recovery
+ - pinctrl: add extra pinctrl to configure i2c pins to gpio function for i2c
+ bus recovery, call it "gpio" state
+
Examples :
i2c@f0000 {
@@ -46,6 +49,9 @@ Examples :
i2c-sda-hold-time-ns = <300>;
i2c-sda-falling-time-ns = <300>;
i2c-scl-falling-time-ns = <300>;
+ pinctrl-names = "default", "gpio";
+ pinctrl-0 = <&pinctrl_i2c1>;
+ pinctrl-1 = <&pinctrl_i2c1_gpio>;
scl-gpios = <&gpio1 15 GPIO_ACTIVE_HIGH>;
sda-gpios = <&gpio1 16 GPIO_ACTIVE_HIGH>;
};
--
2.19.0
