This is a note to let you know that I've just added the patch titled usb: dwc3: qcom: enable vbus override when in OTG dr-mode to the 4.19-stable tree which can be found at: http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary The filename of the patch is: usb-dwc3-qcom-enable-vbus-override-when-in-otg-dr-mo.patch and it can be found in the queue-4.19 subdirectory. If you, or anyone else, feels it should not be added to the stable tree, please let <stable@xxxxxxxxxxxxxxx> know about it. commit 9c8df7b316f7f0d5bf0c122a0a614e015429063d Author: Neil Armstrong <neil.armstrong@xxxxxxxxxx> Date: Tue Jan 24 09:31:21 2023 +0100 usb: dwc3: qcom: enable vbus override when in OTG dr-mode [ Upstream commit eb320f76e31dc835b9f57f04af1a2353b13bb7d8 ] With vbus override enabled when in OTG dr_mode, Host<->Peripheral switch now works on SM8550, otherwise the DWC3 seems to be stuck in Host mode only. Fixes: a4333c3a6ba9 ("usb: dwc3: Add Qualcomm DWC3 glue driver") Reviewed-by: Bryan O'Donoghue <bryan.odonoghue@xxxxxxxxxx> Signed-off-by: Neil Armstrong <neil.armstrong@xxxxxxxxxx> Link: https://lore.kernel.org/r/20230123-topic-sm8550-upstream-dwc3-qcom-otg-v2-1-2d400e598463@xxxxxxxxxx Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx> Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx> diff --git a/drivers/usb/dwc3/dwc3-qcom.c b/drivers/usb/dwc3/dwc3-qcom.c index 07135be83593..58e1bc3a77d8 100644 --- a/drivers/usb/dwc3/dwc3-qcom.c +++ b/drivers/usb/dwc3/dwc3-qcom.c @@ -512,7 +512,7 @@ static int dwc3_qcom_probe(struct platform_device *pdev) qcom->mode = usb_get_dr_mode(&qcom->dwc3->dev); /* enable vbus override for device mode */ - if (qcom->mode == USB_DR_MODE_PERIPHERAL) + if (qcom->mode != USB_DR_MODE_HOST) dwc3_qcom_vbus_override_enable(qcom, true); /* register extcon to override sw_vbus on Vbus change later */