Commit db36e827 authored by Codrin Ciubotariu's avatar Codrin Ciubotariu Committed by Wolfram Sang
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dt-bindings: i2c: add generic properties for GPIO bus recovery 



The I2C GPIO bus recovery properties consist of two GPIOS and one extra
pinctrl state ("gpio" or "recovery"). "recovery" pinctrl state is
considered deprecated and "gpio" should be used instead.
Not all are mandatory for recovery.

Signed-off-by: default avatarCodrin Ciubotariu <codrin.ciubotariu@microchip.com>
Reviewed-by: default avatarRob Herring <robh@kernel.org>
[wsa: kept sorting, minor whitespace change]
Signed-off-by: default avatarWolfram Sang <wsa@kernel.org>
parent c7c9e914

Documentation/devicetree/bindings/i2c/i2c.txt

+10 −0
Original line number Diff line number Diff line
@@ -72,6 +72,16 @@ wants to support one of the below features, it should adapt these bindings. 
	this information to adapt power management to keep the arbitration awake

	all the time, for example. Can not be combined with 'single-master'.



- pinctrl

	add extra pinctrl to configure SCL/SDA pins to GPIO function for bus

	recovery, call it "gpio" or "recovery" (deprecated) state



- scl-gpios

	specify the gpio related to SCL pin. Used for GPIO bus recovery.



- sda-gpios

	specify the gpio related to SDA pin. Optional for GPIO bus recovery.



- single-master

	states that there is no other master active on this bus. The OS can use

	this information to detect a stalled bus more reliably, for example.