Re: msm_hsusb 78d9000.usb: failed to create device link to ci_hdrc.0.ulpi

[Alexandre Torgue]

Hi Andy

On 2/19/20 10:23 AM, Andy Shevchenko wrote:
> On Wed, Feb 19, 2020 at 4:46 AM Jack Pham <jackp@xxxxxxxxxxxxxx> wrote:
> > On Wed, Feb 19, 2020 at 01:38:22AM +0000, Peter Chen wrote:
> > > On 20-02-17 14:02:57, Naresh Kamboju wrote:
> > > > arm64 APQ 8016 SBC ( Dragonboard 410c)  device running Linux next boot
> > > > failed due to below error.
> > > >
> > > > [    0.000000] Booting Linux on physical CPU 0x0000000000 [0x410fd030]
> > > > [    0.000000] Linux version 5.6.0-rc2-next-20200217 (oe-user@oe-host)
> > > > (gcc version 7.3.0 (GCC)) #1 SMP PREEMPT Mon Feb 17 04:27:31 UTC 2020
> > > > [    0.000000] Machine model: Qualcomm Technologies, Inc. APQ 8016 SBC
> > > > <>
> > > > [    4.439291] msm_hsusb 78d9000.usb: failed to create device link to
> > > > ci_hdrc.0.ulpi
> > > > [    4.448891] msm_hsusb 78d9000.usb: failed to create device link to
> > > > ci_hdrc.0.ulpi
> > > > [    4.457879] msm_hsusb 78d9000.usb: failed to create device link to
> > > > ci_hdrc.0.ulpi
> > > > [    4.467331] msm_hsusb 78d9000.usb: failed to create device link to
> > > > ci_hdrc.0.ulpi
> > > > [    4.475636] mmc0: new HS200 MMC card at address 0001
> > > > [    4.478895] mmcblk0: mmc0:0001 DS2008 7.28 GiB
> > > > [    4.480629] mmcblk0boot0: mmc0:0001 DS2008 partition 1 4.00 MiB
> > > > [    4.484719] mmcblk0boot1: mmc0:0001 DS2008 partition 2 4.00 MiB
> > > > [    4.492247] msm_hsusb 78d9000.usb: failed to create device link to
> > > > ci_hdrc.0.ulpi
> > > > [    4.502611] mmcblk0rpmb: mmc0:0001 DS2008 partition 3 4.00 MiB,
> > > > chardev (234:0)
> > > > [    4.506949] msm_hsusb 78d9000.usb: failed to create device link to
> > > > ci_hdrc.0.ulpi
> > > > [    4.517901] random: fast init done
> > > > [    4.521420] mmc1: new ultra high speed SDR104 SDHC card at address aaaa
> > > > [    4.523400] mmcblk1: mmc1:aaaa SL16G 14.8 GiB
> > > > [    4.532843] msm_hsusb 78d9000.usb: failed to create device link to
> > > > ci_hdrc.0.ulpi
> > > > [    4.539131]  mmcblk0: p1 p2 p3 p4 p5 p6 p7 p8 p9 p10 p11 p12 p13 p14
> > > > [    4.542309]  mmcblk1: p1
> > > > [    4.561843] msm_hsusb 78d9000.usb: failed to create device link to
> > > > ci_hdrc.0.ulpi
> > > > [    4.573481] msm_hsusb 78d9000.usb: failed to create device link to
> > > > ci_hdrc.0.ulpi
> > > > [    4.585283] msm_hsusb 78d9000.usb: failed to create device link to
> > > > ci_hdrc.0.ulpi
> > > > [    4.592622] msm_hsusb 78d9000.usb: failed to create device link to
> > > > ci_hdrc.0.ulpi
> > > > [    4.600074] msm_hsusb 78d9000.usb: failed to create device link to
> > > > ci_hdrc.0.ulpi
> > > > [    4.607204] msm_hsusb 78d9000.usb: failed to create device link to
> > > > ci_hdrc.0.ulpi
> > > > [    4.614679] msm_hsusb 78d9000.usb: failed to create device link to
> > > > ci_hdrc.0.ulpi
> > >
> > > The chipidea USB code hasn't changed recently. Would you please bisect
> > > which commit affect it?
> >
> > Probably same cause as for this:
> > https://bugzilla.kernel.org/show_bug.cgi?id=206435
>
> Yes, it's the same. I dunno why no fix yet available.

Kishon has posted a patch yesterday for device link issue in phy core. 
Please see:

https://lkml.org/lkml/2020/2/18/272

regards
Alex