+ DT maintainers
On Mon, 17 Sep 2018 11:28:30 +0800
Jisheng Zhang <Jisheng.Zhang@xxxxxxxxxxxxx> wrote:
> 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>;
> };
