Quoting Sandeep Maheswaram (2021-11-30 22:15:38)
> 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.
This looks wrapped weirdly.
> Set this quirk to avoid phy initialization in HCD core.
>
> Signed-off-by: Sandeep Maheswaram <quic_c_sanm@xxxxxxxxxxx>
Any Fixes tag?
> ---
> 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"))
Are we sure that pdev->dev.parent isn't NULL here?
> + 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)) {
