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Date: Wed, 3 Apr 2024 15:52:11 +0200
From: Sebastian Reichel <sebastian.reichel@collabora.com>
To: Pratham Patel <prathampatel@thefossguy.com>
Cc: Saravana Kannan <saravanak@google.com>, 
	Dragan Simic <dsimic@manjaro.org>, devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org, 
	linux-rockchip@lists.infradead.org, linux-kernel@vger.kernel.org, regressions@lists.linux.dev, 
	stable@vger.kernel.org
Subject: Re: Fixing the devicetree of Rock 5 Model B (and possibly others)
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Hi,

On Wed, Apr 03, 2024 at 01:03:07AM +0000, Pratham Patel wrote:
> > > > Also, can you give the output of <debugfs>/devices_deferred for the
> > > > good vs bad case?
> > >
> > > I can't provide you with requested output from the bad case, since the
> > > kernel never moves past this to an initramfs rescue shell, but follow=
ing
> > > is the output from v6.8.1 (**with aforementioned patch reverted**).
> > >
> > > # cat /sys/kernel/debug/devices_deferred
> > > fc400000.usb    platform: wait for supplier /phy@fed90000/usb3-port
> > > 1-0022  typec_fusb302: cannot register tcpm port
> > > fc000000.usb    platform: wait for supplier /phy@fed80000/usb3-port
> > >
> > > It seems that v6.8.2 works _without needing to revert the patch_. I w=
ill
> > > have to look into this sometime this week but it seems like
> > > a8037ceb8964 (arm64: dts: rockchip: drop rockchip,trcm-sync-tx-only f=
rom rk3588 i2s)
> > > seems to be the one that fixed the root issue. I will have to test it
> > > sometime later this week.
> >
> > Ok, once you find the patch that fixes things, let me know too.
>=20
> Will do!

FWIW the v6.8.1 kernel referenced above is definitely patched, since
upstream's Rock 5B DT does neither describe fusb302, nor the USB
port it is connected to.

We have a few Rock 5B in Kernel CI and upstream boots perfectly
fine:

https://lava.collabora.dev/scheduler/device_type/rk3588-rock-5b

So it could be one of your downstream patches, which is introducing
this problem.

-- Sebastian

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