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

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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





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