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authorBird, Tim <Tim.Bird@sonymobile.com>2016-10-18 02:42:50 +0200
committerSebastian Reichel <sre@kernel.org>2017-01-16 23:02:39 +0100
commit3a3e11647315c1238ff9544e6d9c17396d7e48ec (patch)
treefa86b29bbc32f96c57119c287c2f9c5c979e0092
parentpower: supply: bq27xxx: adds device tree binding documentation. (diff)
downloadlinux-3a3e11647315c1238ff9544e6d9c17396d7e48ec.tar.xz
linux-3a3e11647315c1238ff9544e6d9c17396d7e48ec.zip
dt-bindings: power: supply: Add otg regulator binding
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>
-rw-r--r--Documentation/devicetree/bindings/power/supply/qcom_smbb.txt19
1 files changed, 19 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/power/supply/qcom_smbb.txt b/Documentation/devicetree/bindings/power/supply/qcom_smbb.txt
index 65b88fac854b..06f8a5ddb68e 100644
--- a/Documentation/devicetree/bindings/power/supply/qcom_smbb.txt
+++ b/Documentation/devicetree/bindings/power/supply/qcom_smbb.txt
@@ -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 {};
};