Messages in this thread Patch in this message | | | From | Sandeep Maheswaram <> | Subject | [PATCH v3] usb: host: xhci-plat: Set XHCI_SKIP_PHY_INIT quirk for DWC3 controller | Date | Wed, 1 Dec 2021 11:45:38 +0530 |
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Set XHCI_SKIP_PHY_INIT quirk to avoid phy initialization twice. Runtime suspend of phy drivers was failing from DWC3 driver as runtime usage value is 2 because the phy is initialized from DWC3 core and HCD core. DWC3 manages phy in their core drivers. Set this quirk to avoid phy initialization in HCD core.
Signed-off-by: Sandeep Maheswaram <quic_c_sanm@quicinc.com> --- drivers/usb/host/xhci-plat.c | 3 +++ 1 file changed, 3 insertions(+)
diff --git a/drivers/usb/host/xhci-plat.c b/drivers/usb/host/xhci-plat.c index c1edcc9..9bbd939 100644 --- a/drivers/usb/host/xhci-plat.c +++ b/drivers/usb/host/xhci-plat.c @@ -327,6 +327,9 @@ static int xhci_plat_probe(struct platform_device *pdev) &xhci->imod_interval); } + if (of_device_is_compatible(pdev->dev.parent->of_node, "snps,dwc3")) + xhci->quirks |= XHCI_SKIP_PHY_INIT; + hcd->usb_phy = devm_usb_get_phy_by_phandle(sysdev, "usb-phy", 0); if (IS_ERR(hcd->usb_phy)) { ret = PTR_ERR(hcd->usb_phy); -- 2.7.4
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