USB 3.0 is broken on Odroid Xu4 on latest kernel

[Krzysztof Kozlowski]

On Wed, Jul 19, 2017 at 09:13:29PM +0300, Felipe Balbi wrote:
> 
> Hi,
> 
> Anand Moon <linux.amoon at gmail.com> writes:
> > Hi Krzysztof,
> >
> > Today I tried to compile the latest kernel for Odroid xu4.
> > using exynos_defconfig I build and loaded the kernel.
> > but to my surprise usb 3.0 device and missing.
> >
> > odroid login: root
> > Password:
> > Last login: Wed Jul 19 14:01:44 UTC 2017 on ttySAC2
> > Welcome to Ubuntu 16.04.2 LTS (GNU/Linux 4.13.0-rc1-xu4ml-27846-g74cbd96 armv7l)
> 
> Dude, you have 27 thousand patches on top of v4.13-rc1??? Try vanilla
> v4.13-rc1 and try a git bisect.

Hi Anand,

Beside Felipe's comment, I do not have XU4. I cannot reproduce it on
XU3-Lite (but there is difference in USB2 and USB3, AFAIR).

$ uname -a
Linux odroidxu3 4.13.0-rc1-00071-ge06fdaf40a5c #1051 SMP PREEMPT Wed Jul 19 22:07:41 CEST 2017 armv7l GNU/Linux
$ lsusb
Bus 004 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
Bus 003 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 002 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 001 Device 003: ID 0424:ec00 Standard Microsystems Corp. SMSC9512/9514 Fast Ethernet Adapter
Bus 001 Device 002: ID 0424:9514 Standard Microsystems Corp. SMC9514 Hub
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub

Try to follow Felipe's advice of using vanilla kernel from Linus and
bisecting it.

Best regards,
Krzysztof