| Message ID | 1649323888-12420-1-git-send-email-quic_c_sanm@quicinc.com |
|---|---|
| Headers | show |
| Series | Skip phy initialization for DWC3 USB Controllers | expand |
Hi Mathias, Felipe, > -----Original Message----- > From: Sandeep Maheswaram (Temp) (QUIC) <quic_c_sanm@quicinc.com> > Sent: Thursday, April 7, 2022 3:01 PM > To: Greg Kroah-Hartman <gregkh@linuxfoundation.org>; Felipe Balbi > <balbi@kernel.org>; Stephen Boyd <swboyd@chromium.org>; Doug > Anderson <dianders@chromium.org>; Matthias Kaehlcke > <mka@chromium.org>; Mathias Nyman <mathias.nyman@intel.com> > Cc: linux-arm-msm@vger.kernel.org; linux-usb@vger.kernel.org; linux- > kernel@vger.kernel.org; Pavan Kumar Kondeti (QUIC) > <quic_pkondeti@quicinc.com>; Pratham Pratap (QUIC) > <quic_ppratap@quicinc.com>; Krishna Kurapati PSSNV (QUIC) > <quic_kriskura@quicinc.com>; Vidya Sagar Pulyala (Temp) (QUIC) > <quic_vpulyala@quicinc.com>; Sandeep Maheswaram (Temp) (QUIC) > <quic_c_sanm@quicinc.com> > Subject: [PATCH v3 0/2] Skip phy initialization for DWC3 USB Controllers > > 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. > Some controllers like DWC3 and CDNS3 manage phy in their core drivers. > This property can be set to avoid phy initialization in HCD core. > > v3: > Coming back to this series based on discussion at below thread > https://patchwork.kernel.org/project/linux-arm-msm/patch/1648103831- > 12347-4-git-send-email-quic_c_sanm@quicinc.com/ > Dropped the dt bindings PATCH 1/3 in v2 > https://patchwork.kernel.org/project/linux-arm-msm/cover/1636353710- > 25582-1-git-send-email-quic_c_sanm@quicinc.com/ > > v2: > Updated the commit descriptions. > Changed subject prefix from dwc to dwc3. > Increased props array size. > > Sandeep Maheswaram (2): > usb: host: xhci-plat: Add device property to set XHCI_SKIP_PHY_INIT > quirk > usb: dwc3: host: Set the property usb-skip-phy-init > > drivers/usb/dwc3/host.c | 4 +++- > drivers/usb/host/xhci-plat.c | 3 +++ > 2 files changed, 6 insertions(+), 1 deletion(-) > > -- > 2.7.4 Please let me know your opinion about this series. Regards Sandeep
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. Some controllers like DWC3 and CDNS3 manage phy in their core drivers. This property can be set to avoid phy initialization in HCD core. v3: Coming back to this series based on discussion at below thread https://patchwork.kernel.org/project/linux-arm-msm/patch/1648103831-12347-4-git-send-email-quic_c_sanm@quicinc.com/ Dropped the dt bindings PATCH 1/3 in v2 https://patchwork.kernel.org/project/linux-arm-msm/cover/1636353710-25582-1-git-send-email-quic_c_sanm@quicinc.com/ v2: Updated the commit descriptions. Changed subject prefix from dwc to dwc3. Increased props array size. Sandeep Maheswaram (2): usb: host: xhci-plat: Add device property to set XHCI_SKIP_PHY_INIT quirk usb: dwc3: host: Set the property usb-skip-phy-init drivers/usb/dwc3/host.c | 4 +++- drivers/usb/host/xhci-plat.c | 3 +++ 2 files changed, 6 insertions(+), 1 deletion(-)