Re: Regression: onboard-usb-hub breaks USB on RPi 3 #forregzbot

[Thorsten Leemhuis <regressions@leemhuis.info>]

[Note: this mail contains only information for Linux kernel regression
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On 18.12.22 14:35, Stefan Wahren wrote:
> 
> unfortunately i didn't notice this regression sooner, but the following
> commits breaks USB on Raspberry Pi 3:
> 
> usb: misc: Add onboard_usb_hub driver

that's 43993626de00

> usb: misc: onboard-hub: add support for Microchip USB2514B USB 2.0 hub

that's 8bc063641ceb

/me wonders which of this it actually is and assumes it's the latter

> After these commits (and this new driver enabled like in
> multi_v7_defconfig) the connected USB devices doesn't work anymore
> (mouse is powered, but no function of keyboard and mouse). Reconnecting
> doesn't help. Running lsusb hangs forever.

Thanks for the report. To be sure below issue doesn't fall through the
cracks unnoticed, I'm adding it to regzbot, my Linux kernel regression
tracking bot:

#regzbot ^introduced 8bc063641ceb
#regzbot title usb: onboard-usb-hub breaks USB on RPi3
#regzbot ignore-activity

Ciao, Thorsten (wearing his 'the Linux kernel's regression tracker' hat)

P.S.: As the Linux kernel's regression tracker I deal with a lot of
reports and sometimes miss something important when writing mails like
this. If that's the case here, don't hesitate to tell me in a public
reply, it's in everyone's interest to set the public record straight.

> Here is the relevant dmesg in error case:
> 
> [    0.078446] usbcore: registered new interface driver usbfs
> [    0.078516] usbcore: registered new interface driver hub
> [    0.078574] usbcore: registered new device driver usb
> [    0.078827] usb_phy_generic phy: supply vcc not found, using dummy
> regulator
> [    0.078990] usb_phy_generic phy: dummy supplies not allowed for
> exclusive requests
> [    2.897258] usbcore: registered new interface driver pegasus
> [    2.903161] usbcore: registered new interface driver asix
> [    2.908809] usbcore: registered new interface driver ax88179_178a
> [    2.915185] usbcore: registered new interface driver cdc_ether
> [    2.921281] usbcore: registered new interface driver smsc75xx
> [    2.927305] usbcore: registered new interface driver smsc95xx
> [    2.933298] usbcore: registered new interface driver net1080
> [    2.939219] usbcore: registered new interface driver cdc_subset
> [    2.945407] usbcore: registered new interface driver zaurus
> [    2.951238] usbcore: registered new interface driver cdc_ncm
> [    3.030909] usbcore: registered new interface driver usb-storage
> [    3.178104] usbcore: registered new interface driver usbhid
> [    3.191022] usbhid: USB HID core driver
> [    3.981848] dwc2 3f980000.usb: supply vusb_d not found, using dummy
> regulator
> [    3.992467] dwc2 3f980000.usb: supply vusb_a not found, using dummy
> regulator
> [    4.053728] dwc2 3f980000.usb: DWC OTG Controller
> [    4.065343] dwc2 3f980000.usb: new USB bus registered, assigned bus
> number 1
> [    4.079415] dwc2 3f980000.usb: irq 66, io mem 0x3f980000
> [    4.463447] usb 1-1: new high-speed USB device number 2 using dwc2
> [    5.063444] usb 1-1.1: new high-speed USB device number 3 using dwc2
> [    5.523440] usb 1-1.3: new low-speed USB device number 4 using dwc2
> [    5.685546] input: HID 046a:0011 as
> /devices/platform/soc/3f980000.usb/usb1/1-1/1-1.3/1-1.3:1.0/0003:046A:0011.0001/input/input0
> [    5.763446] usb 1-1.1.2: new low-speed USB device number 5 using dwc2
> [    5.777968] hid-generic 0003:046A:0011.0001: input: USB HID v1.11
> Keyboard [HID 046a:0011] on usb-3f980000.usb-1.3/input0
> [    5.931991] input: PixArt Microsoft USB Optical Mouse as
> /devices/platform/soc/3f980000.usb/usb1/1-1/1-1.1/1-1.1.2/1-1.1.2:1.0/0003:045E:00CB.0002/input/input1
> [    5.954668] hid-generic 0003:045E:00CB.0002: input: USB HID v1.11
> Mouse [PixArt Microsoft USB Optical Mouse] on usb-3f980000.usb-1.1.2/input0
> [    6.263459] usb 1-1.1.1: new high-speed USB device number 6 using dwc2
> [   14.828915] onboard-usb-hub 3f980000.usb:usb-port@1: supply vdd not
> found, using dummy regulator
> [   14.829493] onboard-usb-hub 3f980000.usb:usb-port@1:usb-port@1:
> supply vdd not found, using dummy regulator
> [   14.829729] usbcore: registered new device driver onboard-usb-hub
> [   14.829945] usb 1-1.1: USB disconnect, device number 3
> [   14.829958] usb 1-1.1.1: USB disconnect, device number 6
> [   14.830419] usb 1-1.1.2: USB disconnect, device number 5
> [   14.854725] usb 1-1.3: USB disconnect, device number 4
> [   14.896865] usbcore: registered new interface driver lan78xx
> 
> Unfortunately i'm not that USB expert, so please tell me if you need
> more information.
> 
> 
>