Hi Johan, > > On Fri, Nov 03, 2023 at 05:43:23PM +0100, Johan Hovold wrote: > > > Commits 7b8ef22ea547 ("usb: xhci: plat: Add USB phy support") and > > > 9134c1fd0503 ("usb: xhci: plat: Add USB 3.0 phy support") added > > > support for looking up legacy PHYs from the sysdev devicetree node > > > and initialising them. > > > > > > This broke drivers such as dwc3 which manages PHYs themself as the > > > PHYs would now be initialised twice, something which specifically > > > can lead to resources being left enabled during suspend (e.g. with > > > the usb_phy_generic PHY driver). > > > > > > As the dwc3 driver uses driver-name matching for the xhci platform > > > device, fix this by only looking up and initialising PHYs for > > > devices that have been matched using OF. > > > > > > Note that checking that the platform device has a devicetree node > > > would currently be sufficient, but that could lead to subtle > > > breakages in case anyone ever tries to reuse an ancestor's node. > > > > > > Fixes: 7b8ef22ea547 ("usb: xhci: plat: Add USB phy support") > > > Fixes: 9134c1fd0503 ("usb: xhci: plat: Add USB 3.0 phy support") > > > Cc: stable@xxxxxxxxxxxxxxx # 4.1 > > > Cc: Maxime Ripard <mripard@xxxxxxxxxx> > > > Cc: Stanley Chang <stanley_chang@xxxxxxxxxxx> > > > Signed-off-by: Johan Hovold <johan+linaro@xxxxxxxxxx> > > > > Tested-by: Stefan Eichenberger <stefan.eichenberger@xxxxxxxxxxx> > > Tested-by: Stanley Chang <stanley_chang@xxxxxxxxxxx> > I am sorry to notify you this patch is tested fail. I test the Realtek phy driver at drivers/phy/Realtek/phy-rtk-usb2.c again. But I can't get the phy in xhci. It is a dwc3 generic phy driver, and it is also a usb phy driver. Base on you modified, I can't run on callback rtk_phy->phy.notify_port_status = rtk_phy_notify_port_status; Thanks, Stanley.