[PATCH v5 1/2] dt-binding: power: Add otg regulator binding
Stephen Boyd
stephen.boyd at linaro.org
Mon Oct 17 17:42:50 PDT 2016
From: "Bird, Tim" <Tim.Bird at sonymobile.com>
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 at sonymobile.com>
Acked-by: Bjorn Andersson <bjorn.andersson at sonymobile.com>
Reviewed-by: Andy Gross <andy.gross at linaro.org>
Acked-by: Rob Herring <robh at kernel.org>
Signed-off-by: Stephen Boyd <stephen.boyd at linaro.org>
---
.../devicetree/bindings/power/supply/qcom_smbb.txt | 19 +++++++++++++++++++
1 file changed, 19 insertions(+)
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 at 1000 {
compatible = "qcom,pm8941-charger";
@@ -128,4 +144,7 @@ charger at 1000 {
qcom,fast-charge-current-limit = <1000000>;
qcom,dc-charge-current-limit = <1000000>;
+ usb_otg_in-supply = <&pm8941_5vs1>;
+
+ otg-vbus {};
};
--
2.10.0.297.gf6727b0
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