Re: [PATCH 1/4] Documentation: pinctrl: palmas: Add ti,palmas-powerhold-override property definition

Lee Jones
2016-11-09T16:07:35Z

On Thu, 27 Oct 2016, Keerthy wrote:

> 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>
> ---
> Documentation/devicetree/bindings/pinctrl/pinctrl-palmas.txt | 9 +++++++++
> 1 file changed, 9 insertions(+)

This requires a DT Ack.

> diff --git a/Documentation/devicetree/bindings/pinctrl/pinctrl-palmas.txt b/Documentation/devicetree/bindings/pinctrl/pinctrl-palmas.txt
> index caf297b..c28d4eb8 100644
> --- a/Documentation/devicetree/bindings/pinctrl/pinctrl-palmas.txt
> +++ b/Documentation/devicetree/bindings/pinctrl/pinctrl-palmas.txt
> @@ -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:

--
Lee Jones
Linaro STMicroelectronics Landing Team Lead
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