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[v1,0/6] arm64: qcom: sa8775p: add support for USB

Message ID 20230421133922.8520-1-quic_shazhuss@quicinc.com (mailing list archive)
Headers show
Series arm64: qcom: sa8775p: add support for USB | expand

Message

Shazad Hussain April 21, 2023, 1:39 p.m. UTC
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(-)

Comments

Adrien Thierry April 24, 2023, 10:35 p.m. UTC | #1
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
    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
Dmitry Baryshkov April 24, 2023, 11:03 p.m. UTC | #2
On Tue, 25 Apr 2023 at 01:36, Adrien Thierry <athierry@redhat.com> 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
>
Adrien Thierry April 25, 2023, 6:03 p.m. UTC | #3
Hi Dmitry,

> Semi-random suggestion, but could you please try using
> clk_regmap_phy_mux/clk_regmap_phy_mux_ops for USB pipe clk src?

Which specific clock are you refering to? I'm not very familiar with
those, in the device tree I'm seeing "pipe" clocks for usb_0 and usb_1
phys, but not for usb_2, which is the one that's causing issues.

Best,

Adrien
Shazad Hussain April 26, 2023, 12:05 p.m. UTC | #4
Hi Adrien,

On 4/25/2023 4:05 AM, Adrien Thierry 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
>      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?
> 

I did try 10 reboots and did not encounter this issue on my setup tough.

> Best,
> 
> Adrien
> 

---
-Shazad
Konrad Dybcio April 26, 2023, 11:42 p.m. UTC | #5
On 4/24/23 23:35, Adrien Thierry 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
>      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?

I've had some issues with QMPPHY not (sometimes?) probing in time on SM6115 only when built as a module.. perhaps it'd be worth checking out of it works fine with =y?


Konrad

>
> Best,
>
> Adrien
>
Shazad Hussain April 27, 2023, 3:05 a.m. UTC | #6
On 4/27/2023 5:12 AM, Konrad Dybcio wrote:
> 
> On 4/24/23 23:35, Adrien Thierry 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
>>      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?
> 
> I've had some issues with QMPPHY not (sometimes?) probing in time on 
> SM6115 only when built as a module.. perhaps it'd be worth checking out 
> of it works fine with =y?
> 

In my setup I tried keeping QMPPHY as =y only and did not see the issue

with 10 reboots.
> 
> Konrad
> 
>>
>> Best,
>>
>> Adrien
>>
---
Shazad
Adrien Thierry April 27, 2023, 5:24 p.m. UTC | #7
Hi Konrad,

On Thu, Apr 27, 2023 at 12:42:15AM +0100, Konrad Dybcio wrote:
> 
> On 4/24/23 23:35, Adrien Thierry 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
> >      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?
> 
> I've had some issues with QMPPHY not (sometimes?) probing in time on SM6115 only when built as a module.. perhaps it'd be worth checking out of it works fine with =y?

Looks like that might be the cause indeed. The arm64 defconfig has the
PHYs built as modules, but with either CONFIG_PHY_QCOM_QMP_USB=y or
CONFIG_PHY_QCOM_USB_SNPS_FEMTO_V2=y, the controllers initialize properly
all the time.

So, the series is:

Tested-by: Adrien Thierry <athierry@redhat.com>

> 
> 
> Konrad
> 
> > 
> > Best,
> > 
> > Adrien
> >
Dmitry Baryshkov April 28, 2023, 9:41 p.m. UTC | #8
On 25/04/2023 21:03, Adrien Thierry wrote:
> Hi Dmitry,
> 
>> Semi-random suggestion, but could you please try using
>> clk_regmap_phy_mux/clk_regmap_phy_mux_ops for USB pipe clk src?
> 
> Which specific clock are you refering to? I'm not very familiar with
> those, in the device tree I'm seeing "pipe" clocks for usb_0 and usb_1
> phys, but not for usb_2, which is the one that's causing issues.
> 

Ah, I see. Could you please try adding the 
'qcom,select-utmi-as-pipe-clk' property to the usb_2 host node and 
running the test again?
Adrien Thierry May 2, 2023, 6:49 p.m. UTC | #9
Hi Dmitry,

On Sat, Apr 29, 2023 at 12:41:39AM +0300, Dmitry Baryshkov wrote:
> On 25/04/2023 21:03, Adrien Thierry wrote:
> > Hi Dmitry,
> > 
> > > Semi-random suggestion, but could you please try using
> > > clk_regmap_phy_mux/clk_regmap_phy_mux_ops for USB pipe clk src?
> > 
> > Which specific clock are you refering to? I'm not very familiar with
> > those, in the device tree I'm seeing "pipe" clocks for usb_0 and usb_1
> > phys, but not for usb_2, which is the one that's causing issues.
> > 
> 
> Ah, I see. Could you please try adding the 'qcom,select-utmi-as-pipe-clk'
> property to the usb_2 host node and running the test again?
>

Thanks for the suggestion. I tested this but unfortunately the issue is
still happening.

Best,

Adrien