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 4.9-stable tree which can be found at: http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git%3Ba=su...
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-4.9 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree, please let stable@vger.kernel.org know about it.
From 0ea66f76ba17a4b229caaadd77de694111b21769 Mon Sep 17 00:00:00 2001
From: Keerthy j-keerthy@ti.com Date: Mon, 28 Nov 2016 09:31:58 +0530 Subject: Documentation: pinctrl: palmas: Add ti,palmas-powerhold-override property definition
From: Keerthy j-keerthy@ti.com
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@ti.com Acked-by: Rob Herring robh@kernel.org Signed-off-by: Linus Walleij linus.walleij@linaro.org Cc: Ben Hutchings ben.hutchings@codethink.co.uk Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org
--- 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@ti.com are
queue-4.9/documentation-pinctrl-palmas-add-ti-palmas-powerhold-override-property-definition.patch queue-4.9/arm-dts-am57xx-idk-common-add-overide-powerhold-property.patch queue-4.9/arm-dts-am57xx-beagle-x15-common-add-overide-powerhold-property.patch queue-4.9/arm-dts-dra7-add-power-hold-and-power-controller-properties-to-palmas.patch