| Message ID | 20180917112830.2a3c9be9@xhacker.debian |
|---|---|
| State | New |
| Headers | show |
| Series | i2c: designware: select gpio/default pin when prepare/unprepare recovery | expand |
+ DT maintainers On Mon, 17 Sep 2018 11:28:30 +0800 Jisheng Zhang <Jisheng.Zhang@synaptics.com> wrote: > Document the pinctrl property for bus recovery. > > Signed-off-by: Jisheng Zhang <Jisheng.Zhang@synaptics.com> > --- > 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>; > };
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>; };
Document the pinctrl property for bus recovery. Signed-off-by: Jisheng Zhang <Jisheng.Zhang@synaptics.com> --- Documentation/devicetree/bindings/i2c/i2c-designware.txt | 6 ++++++ 1 file changed, 6 insertions(+)