On Tue, 25 Apr 2023 at 01:36, Adrien Thierry <athierry@xxxxxxxxxx> wrote: > > Hi Shazad, > > On Fri, Apr 21, 2023 at 07:09:15PM +0530, Shazad Hussain wrote: > > Update relavent DT bindings for USB, add new config to the phy driver, > > add USB and PHY nodes to the .dtsi and enable them in the board .dts > > for the sa8775p-ride platform. > > > > Shazad Hussain (6): > > dt-bindings: usb: qcom,dwc3: Add bindings for SA8775P > > dt-bindings: phy: qcom,usb-snps-femto-v2: Add bindings for SA8775P > > dt-bindings: phy: qcom,sc8280xp-qmp-usb3-uni: Add SA8775P USB PHY > > binding > > phy: qcom-qmp: Add SA8775P USB3 UNI phy > > arm64: dts: qcom: sa8775p: add USB nodes > > arm64: dts: qcom: sa8775p-ride: enable USB nodes > > > > .../phy/qcom,sc8280xp-qmp-usb3-uni-phy.yaml | 1 + > > .../bindings/phy/qcom,usb-snps-femto-v2.yaml | 1 + > > .../devicetree/bindings/usb/qcom,dwc3.yaml | 5 + > > arch/arm64/boot/dts/qcom/sa8775p-ride.dts | 92 +++++++ > > arch/arm64/boot/dts/qcom/sa8775p.dtsi | 239 +++++++++++++++++- > > drivers/phy/qualcomm/phy-qcom-qmp-usb.c | 45 ++++ > > 6 files changed, 381 insertions(+), 2 deletions(-) > > > > -- > > 2.17.1 > > > > Thanks for posting this. I tested the series on the sa8775p, and it seems > initialization for the controller at a400000 sometimes fails with a > timeout (-110) error: > > dwc3 a400000.usb: Adding to iommu group 2 > xhci-hcd xhci-hcd.0.auto: xHCI Host Controller > xhci-hcd xhci-hcd.0.auto: new USB bus registered, assigned bus number 1 > xhci-hcd xhci-hcd.0.auto: can't setup: -110 > xhci-hcd xhci-hcd.0.auto: USB bus 1 deregistered > xhci-hcd: probe of xhci-hcd.0.auto failed with error -110 Semi-random suggestion, but could you please try using clk_regmap_phy_mux/clk_regmap_phy_mux_ops for USB pipe clk src? > dwc3 a600000.usb: Adding to iommu group 3 > dwc3 a800000.usb: Adding to iommu group 4 > xhci-hcd xhci-hcd.1.auto: xHCI Host Controller > xhci-hcd xhci-hcd.1.auto: new USB bus registered, assigned bus number 1 > xhci-hcd xhci-hcd.1.auto: hcc params 0x0110ffc5 hci version 0x110 quirks 0x0000000000010010 > xhci-hcd xhci-hcd.1.auto: irq 162, io mem 0x0a800000 > xhci-hcd xhci-hcd.1.auto: xHCI Host Controller > xhci-hcd xhci-hcd.1.auto: new USB bus registered, assigned bus number 2 > xhci-hcd xhci-hcd.1.auto: Host supports USB 3.1 Enhanced SuperSpeed > hub 1-0:1.0: USB hub found > hub 1-0:1.0: 1 port detected > usb usb2: We don't know the algorithms for LPM for this host, disabling LPM. > hub 2-0:1.0: USB hub found > hub 2-0:1.0: 1 port detected > > In this case, only usb devices for a800000 are showing: > > dracut:/# ls -alh /sys/bus/usb/devices > total 0 > drwxr-xr-x 2 root root 0 Feb 27 00:00 . > drwxr-xr-x 4 root root 0 Feb 27 00:00 .. > lrwxrwxrwx 1 root root 0 Feb 27 00:00 1-0:1.0 -> ../../../devices/platform/soc@0/a8f8800.usb/a800000.usb/xhci-hcd.1.auto/usb1/1-0:1.0 > lrwxrwxrwx 1 root root 0 Feb 27 00:00 2-0:1.0 -> ../../../devices/platform/soc@0/a8f8800.usb/a800000.usb/xhci-hcd.1.auto/usb2/2-0:1.0 > lrwxrwxrwx 1 root root 0 Feb 27 00:00 usb1 -> ../../../devices/platform/soc@0/a8f8800.usb/a800000.usb/xhci-hcd.1.auto/usb1 > lrwxrwxrwx 1 root root 0 Feb 27 00:00 usb2 -> ../../../devices/platform/soc@0/a8f8800.usb/a800000.usb/xhci-hcd.1.auto/usb2 > > This happens approximately 1 out of 2 reboots. Here's the kernel output > when initialization succeeds: > > dwc3 a600000.usb: Adding to iommu group 2 > dwc3 a800000.usb: Adding to iommu group 3 > xhci-hcd xhci-hcd.0.auto: xHCI Host Controller > xhci-hcd xhci-hcd.0.auto: new USB bus registered, assigned bus number 1 > xhci-hcd xhci-hcd.0.auto: hcc params 0x0110ffc5 hci version 0x110 quirks 0x0000000000010010 > xhci-hcd xhci-hcd.0.auto: irq 161, io mem 0x0a800000 > xhci-hcd xhci-hcd.0.auto: xHCI Host Controller > xhci-hcd xhci-hcd.0.auto: new USB bus registered, assigned bus number 2 > xhci-hcd xhci-hcd.0.auto: Host supports USB 3.1 Enhanced SuperSpeed > hub 1-0:1.0: USB hub found > hub 1-0:1.0: 1 port detected > usb usb2: We don't know the algorithms for LPM for this host, disabling LPM. > hub 2-0:1.0: USB hub found > hub 2-0:1.0: 1 port detected > dwc3 a400000.usb: Adding to iommu group 4 > xhci-hcd xhci-hcd.1.auto: xHCI Host Controller > xhci-hcd xhci-hcd.1.auto: new USB bus registered, assigned bus number 3 > xhci-hcd xhci-hcd.1.auto: USB3 root hub has no ports > xhci-hcd xhci-hcd.1.auto: hcc params 0x0220fe65 hci version 0x110 quirks 0x0000000000010010 > xhci-hcd xhci-hcd.1.auto: irq 162, io mem 0x0a400000 > hub 3-0:1.0: USB hub found > hub 3-0:1.0: 1 port detected > > And the list of usb devices: > > dracut:/# ls -alh /sys/bus/usb/devices > total 0 > drwxr-xr-x 2 root root 0 Feb 27 00:00 . > drwxr-xr-x 4 root root 0 Feb 27 00:00 .. > lrwxrwxrwx 1 root root 0 Feb 27 00:00 1-0:1.0 -> ../../../devices/platform/soc@0/a8f8800.usb/a800000.usb/xhci-hcd.0.auto/usb1/1-0:1.0 > lrwxrwxrwx 1 root root 0 Feb 27 00:00 2-0:1.0 -> ../../../devices/platform/soc@0/a8f8800.usb/a800000.usb/xhci-hcd.0.auto/usb2/2-0:1.0 > lrwxrwxrwx 1 root root 0 Feb 27 00:00 3-0:1.0 -> ../../../devices/platform/soc@0/a4f8800.usb/a400000.usb/xhci-hcd.1.auto/usb3/3-0:1.0 > lrwxrwxrwx 1 root root 0 Feb 27 00:00 usb1 -> ../../../devices/platform/soc@0/a8f8800.usb/a800000.usb/xhci-hcd.0.auto/usb1 > lrwxrwxrwx 1 root root 0 Feb 27 00:00 usb2 -> ../../../devices/platform/soc@0/a8f8800.usb/a800000.usb/xhci-hcd.0.auto/usb2 > lrwxrwxrwx 1 root root 0 Feb 27 00:00 usb3 -> ../../../devices/platform/soc@0/a4f8800.usb/a400000.usb/xhci-hcd.1.auto/usb3 > > Have you also encountered this? > > Best, > > Adrien > -- With best wishes Dmitry
