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Subject[PATCH v3 1/3] dt-bindings: i2c: designware: add optional gpio recovery properties
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 {
--
2.19.0
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