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authorKeerthy <j-keerthy@ti.com>2016-11-28 09:31:58 +0530
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2018-04-08 11:52:01 +0200
commit8b75e974c0d92dc679db02bcfd6fc47a93fbb790 (patch)
treef23cd17666880f3a2e7c36f95b9f6fe3d758fea2 /Documentation
parent16559a0dafa92e91e92ec5fcb5cbcd547aa4cf0c (diff)
Documentation: pinctrl: palmas: Add ti,palmas-powerhold-override property definition
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>
Diffstat (limited to 'Documentation')
-rw-r--r--Documentation/devicetree/bindings/pinctrl/pinctrl-palmas.txt9
1 files changed, 9 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/pinctrl/pinctrl-palmas.txt b/Documentation/devicetree/bindings/pinctrl/pinctrl-palmas.txt
index caf297bee1fb..c28d4eb83b76 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: