Messages in this thread Patch in this message | | | From | Bryan O'Donoghue <> | Subject | [PATCH 1/2] dt-bindings: phy-qcom-usb-hs-phy: Add qcom,enable-vbus-pullup | Date | Thu, 21 May 2020 01:50:30 +0100 |
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This patch adds a dt-binding for qcom,enable-vbus-pullup. The binding qcom,enable-vbus-pullup tells the HS USB PHY driver whether it should set and unset the internal VBUS pullup bits when starting/stopping the USB PHY.
Setting the pullup bits is something you want to do if you have not routed VBUS to a GPIO on the SoC and thus cannot use extcon with the current switching logic in the PHY.
Cc: Andy Gross <agross@kernel.org> Cc: Bjorn Andersson <bjorn.andersson@linaro.org> Cc: Kishon Vijay Abraham I <kishon@ti.com> Cc: Vinod Koul <vkoul@kernel.org> Cc: Stephen Boyd <sboyd@kernel.org> Cc: Rob Herring <robh+dt@kernel.org> Cc: linux-arm-msm@vger.kernel.org Cc: linux-kernel@vger.kernel.org Cc: devicetree@vger.kernel.org Signed-off-by: Bryan O'Donoghue <bryan.odonoghue@linaro.org> --- Documentation/devicetree/bindings/phy/qcom,usb-hs-phy.txt | 6 ++++++ 1 file changed, 6 insertions(+)
diff --git a/Documentation/devicetree/bindings/phy/qcom,usb-hs-phy.txt b/Documentation/devicetree/bindings/phy/qcom,usb-hs-phy.txt index b3b75c1e6285..77e9bf1f8ba2 100644 --- a/Documentation/devicetree/bindings/phy/qcom,usb-hs-phy.txt +++ b/Documentation/devicetree/bindings/phy/qcom,usb-hs-phy.txt @@ -64,6 +64,12 @@ PROPERTIES from the ULPI_EXT_VENDOR_SPECIFIC address, for example, <0x1 0x53> would mean "write the value 0x53 to address 0x81". +- qcom,enable-vbus-pullup: + Usage: optional + Value type: <bool> + Definition: Flag to indicate if the USB PHY driver should toggle internal + VBUS line pullup bits when powering the PHY on or off. + EXAMPLE otg: usb-controller { -- 2.25.1
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