| Message ID | 20180917112741.7c3d6514@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 11:27:41 +0800 Jisheng Zhang <Jisheng.Zhang@synaptics.com> wrote: > Document the scl-gpios and sda-gpios properties 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 fbb0a6d8b964..1d6a6a8061ba 100644 > --- a/Documentation/devicetree/bindings/i2c/i2c-designware.txt > +++ b/Documentation/devicetree/bindings/i2c/i2c-designware.txt > @@ -20,6 +20,10 @@ Optional properties : > - i2c-sda-falling-time-ns : should contain the SDA falling time in nanoseconds. > This value which is by default 300ns is used to compute the tHIGH period. > > + - scl-gpios: specify the gpio of the SCL line for gpio recovery > + > + - sda-gpios: specify the gpio of the SDA line for gpio recovery > + > Examples : > > i2c@f0000 { > @@ -42,6 +46,8 @@ Examples : > i2c-sda-hold-time-ns = <300>; > i2c-sda-falling-time-ns = <300>; > i2c-scl-falling-time-ns = <300>; > + scl-gpios = <&gpio1 15 GPIO_ACTIVE_HIGH>; > + sda-gpios = <&gpio1 16 GPIO_ACTIVE_HIGH>; > }; > > i2c@1120000 {
diff --git a/Documentation/devicetree/bindings/i2c/i2c-designware.txt b/Documentation/devicetree/bindings/i2c/i2c-designware.txt index fbb0a6d8b964..1d6a6a8061ba 100644 --- a/Documentation/devicetree/bindings/i2c/i2c-designware.txt +++ b/Documentation/devicetree/bindings/i2c/i2c-designware.txt @@ -20,6 +20,10 @@ Optional properties : - i2c-sda-falling-time-ns : should contain the SDA falling time in nanoseconds. This value which is by default 300ns is used to compute the tHIGH period. + - scl-gpios: specify the gpio of the SCL line for gpio recovery + + - sda-gpios: specify the gpio of the SDA line for gpio recovery + Examples : i2c@f0000 { @@ -42,6 +46,8 @@ Examples : i2c-sda-hold-time-ns = <300>; i2c-sda-falling-time-ns = <300>; i2c-scl-falling-time-ns = <300>; + scl-gpios = <&gpio1 15 GPIO_ACTIVE_HIGH>; + sda-gpios = <&gpio1 16 GPIO_ACTIVE_HIGH>; }; i2c@1120000 {
Document the scl-gpios and sda-gpios properties 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(+)