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Documentation: pinctrl: palmas: Add ti,palmas-powerhold-override property definition 

GPIO7 is configured in POWERHOLD mode which has higher priority
over DEV_ON bit and keeps the PMIC supplies on even after the DEV_ON
bit is turned off. This property enables driver to over ride the
POWERHOLD value to GPIO7 so as to turn off the PMIC in power off
scenarios.

Signed-off-by: Keerthy <j-keerthy@ti.com>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
This commit is contained in:
Keerthy 2016-11-28 09:31:58 +05:30 committed by Linus Walleij
parent 3ae02c14d9
commit 0ea66f76ba
1 changed files with 9 additions and 0 deletions
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9
Documentation/devicetree/bindings/pinctrl/pinctrl-palmas.txt
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@ -35,6 +35,15 @@ Optional properties:
- ti,palmas-enable-dvfs2: Enable DVFS2. Configure pins for DVFS2 mode.
Selection primary or secondary function associated to GPADC_START
and SYSEN2 pin/pad for DVFS2 interface
- ti,palmas-override-powerhold: This is applicable for PMICs for which
GPIO7 is configured in POWERHOLD mode which has higher priority
over DEV_ON bit and keeps the PMIC supplies on even after the DEV_ON
bit is turned off. This property enables driver to over ride the
POWERHOLD value to GPIO7 so as to turn off the PMIC in power off
scenarios. So for GPIO7 if ti,palmas-override-powerhold is set
then the GPIO_7 field should never be muxed to anything else.
It should be set to POWERHOLD by default and only in case of
power off scenarios the driver will over ride the mux value.
This binding uses the following generic properties as defined in
pinctrl-bindings.txt: