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

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Message-ID: <1638339338-6731-1-git-send-email-quic_c_sanm@quicinc.com>
Date:   Wed, 1 Dec 2021 11:45:37 +0530
From:   Sandeep Maheswaram <quic_c_sanm@...cinc.com>
To:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Felipe Balbi <balbi@...nel.org>,
        Stephen Boyd <swboyd@...omium.org>,
        Doug Anderson <dianders@...omium.org>,
        Matthias Kaehlcke <mka@...omium.org>,
        Mathias Nyman <mathias.nyman@...el.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>,
        Sandeep Maheswaram <quic_c_sanm@...cinc.com>
Subject: [PATCH v3] Skip phy initialization for DWC3 USB Controllers

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.

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.

Sandeep Maheswaram (1):
  usb: host: xhci-plat: Set XHCI_SKIP_PHY_INIT quirk for DWC3 controller

 drivers/usb/host/xhci-plat.c | 3 +++
 1 file changed, 3 insertions(+)

-- 
2.7.4