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dt-bindings: power: supply: Add otg regulator binding

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Add a binding for the regulator which controls the OTG chargepath switch.
The OTG switch gets its power from pm8941_5vs1, and that should be
expressed as a usb_otg_in-supply property in the DT node for the
charger driver.  The regulator name is "otg-vbus".

Signed-off-by: Tim Bird <tim.bird@sonymobile.com>
Acked-by: Bjorn Andersson <bjorn.andersson@sonymobile.com>
Reviewed-by: Andy Gross <andy.gross@linaro.org>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Stephen Boyd <stephen.boyd@linaro.org>
Signed-off-by: Sebastian Reichel <sre@kernel.org>
This commit is contained in:
Bird, Tim 2016-10-17 17:42:50 -07:00 committed by Sebastian Reichel
parent 178478921b
commit 3a3e116473
1 changed files with 19 additions and 0 deletions
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19
Documentation/devicetree/bindings/power/supply/qcom_smbb.txt
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@ -105,6 +105,22 @@ PROPERTIES
regulation must be done externally to fully comply with
the JEITA safety guidelines if this flag is set.
- usb_otg_in-supply:
Usage: optional
Value type: <phandle>
Description: Reference to the regulator supplying power to the USB_OTG_IN
pin.
child nodes:
- otg-vbus:
Usage: optional
Description: This node defines a regulator used to control the direction
of VBUS voltage - specifically: whether to supply voltage
to VBUS for host mode operation of the OTG port, or allow
input voltage from external VBUS for charging. In the
hardware, the supply for this regulator comes from
usb_otg_in-supply.
EXAMPLE
charger@1000 {
compatible = "qcom,pm8941-charger";
@ -128,4 +144,7 @@ charger@1000 {
qcom,fast-charge-current-limit = <1000000>;
qcom,dc-charge-current-limit = <1000000>;
usb_otg_in-supply = <&pm8941_5vs1>;
otg-vbus {};
};