Re: [PATCH v3 1/3] dt-bindings: i2c: designware: add optional gpio recovery properties
From: Jisheng Zhang <hidden>
Date: 2018-09-17 03:36:05
Also in:
linux-arm-kernel, linux-i2c, lkml
+ DT maintainers On Mon, 17 Sep 2018 11:27:41 +0800 Jisheng Zhang [off-list ref] wrote:
quoted hunk
Document the scl-gpios and sda-gpios properties for bus recovery. Signed-off-by: Jisheng Zhang <redacted> --- 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 {