linux-kernel - Re: [PATCH v3] Skip phy initialization for DWC3 USB Controllers

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Date:   Wed, 1 Dec 2021 19:14:13 -0800
From:   Stephen Boyd <swboyd@...omium.org>
To:     Doug Anderson <dianders@...omium.org>,
        Felipe Balbi <balbi@...nel.org>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Mathias Nyman <mathias.nyman@...el.com>,
        Matthias Kaehlcke <mka@...omium.org>,
        Sandeep Maheswaram <quic_c_sanm@...cinc.com>
Cc:     linux-arm-msm@...r.kernel.org, linux-usb@...r.kernel.org,
        linux-kernel@...r.kernel.org, quic_pkondeti@...cinc.com,
        quic_ppratap@...cinc.com
Subject: Re: [PATCH v3] Skip phy initialization for DWC3 USB Controllers

Quoting Sandeep Maheswaram (2021-11-30 22:15:37)
> 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.

Don't think we need a cover letter for a single patch.

>
> v3:
> Dropped the dt property and binding.
> Checking for dwc3 compatible in xhci to set the quirk XHCI_SKIP_PHY_INIT.
>
> v2:
> Updated the commit descriptions.
> Changed subject prefix from dwc to dwc3.
> Increased props array size.