[Bug 2083559] Re: Lack of UART boot output on rb3gen2 even with earlycon

This bug is awaiting verification that the linux-
realtime-6.11/6.11.0-1003.3~24.04.2 kernel in -proposed solves the
problem. Please test the kernel and update this bug with the results. If
the problem is solved, change the tag 'verification-needed-noble-linux-
realtime-6.11' to 'verification-done-noble-linux-realtime-6.11'. If the
problem still exists, change the tag 'verification-needed-noble-linux-
realtime-6.11' to 'verification-failed-noble-linux-realtime-6.11'.


If verification is not done by 5 working days from today, this fix will
be dropped from the source code, and this bug will be closed.


See https://wiki.ubuntu.com/Testing/EnableProposed for documentation how
to enable and use -proposed. Thank you!


** Tags added: kernel-spammed-noble-linux-realtime-6.11-v2 verification-needed-noble-linux-realtime-6.11

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https://bugs.launchpad.net/bugs/2083559

Title:
Lack of UART boot output on rb3gen2 even with earlycon

Status in linux package in Ubuntu:
Invalid
Status in linux source package in Oracular:
Fix Released

Bug description:
I'm validating latest 6.11 kernel on Qualcomm RB3Gen2
(https://www.thundercomm.com/product/qualcomm-rb3-gen-2/) and noticed
there is basically no UART output at all, even with earlycon set.

Looking at the kernel config the issue seems to be that all clocks and
uart drivers are set as module, which is loaded a bit too late in the
boot process.

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