This is a note to let you know that I've just added the patch titled
Documentation: pinctrl: palmas: Add ti,palmas-powerhold-override property definition
to the 3.18-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
documentation-pinctrl-palmas-add-ti-palmas-powerhold-override-property-definition.patch
and it can be found in the queue-3.18 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
>From 0ea66f76ba17a4b229caaadd77de694111b21769 Mon Sep 17 00:00:00 2001
From: Keerthy <j-keerthy@xxxxxx>
Date: Mon, 28 Nov 2016 09:31:58 +0530
Subject: Documentation: pinctrl: palmas: Add ti,palmas-powerhold-override property definition
From: Keerthy <j-keerthy@xxxxxx>
commit 0ea66f76ba17a4b229caaadd77de694111b21769 upstream.
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@xxxxxx>
Acked-by: Rob Herring <robh@xxxxxxxxxx>
Signed-off-by: Linus Walleij <linus.walleij@xxxxxxxxxx>
Cc: Ben Hutchings <ben.hutchings@xxxxxxxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
Documentation/devicetree/bindings/pinctrl/pinctrl-palmas.txt | 9 +++++++++
1 file changed, 9 insertions(+)
--- 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:
Patches currently in stable-queue which might be from j-keerthy@xxxxxx are
queue-3.18/documentation-pinctrl-palmas-add-ti-palmas-powerhold-override-property-definition.patch
queue-3.18/arm-dts-dra7-add-power-hold-and-power-controller-properties-to-palmas.patch