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SubjectRe: [PATCH 1/3] ARM: dts: meson: Fix the UART compatible strings
Hi Martin,

On lun 27-12-2021 19:00:24, Martin Blumenstingl wrote:
> The dt-bindings for the UART controller only allow the following values
> for Meson6 SoCs:
> - "amlogic,meson6-uart", "amlogic,meson-ao-uart"
> - "amlogic,meson6-uart"
>
> Use the correct fallback compatible string "amlogic,meson-ao-uart" for
> AO UART. Drop the "amlogic,meson-uart" compatible string from the EE
> domain UART controllers.

KernelCI detected that this patch introduced a regression in
stable-rc/linux-4.14.y on a meson8b-odroidc1.
After this patch was applied the tests running on this platform don't
show any serial output.

This doesn't happen in other stable branches nor in mainline, but 4.14
hasn't still reached EOL and it'd be good to find a fix.

Here's the bisection report:
https://groups.io/g/kernelci-results/message/40147

KernelCI info:
https://linux.kernelci.org/test/case/id/64234f7761021a30b262f776/

Test log:
https://storage.kernelci.org/stable-rc/linux-4.14.y/v4.14.311-43-g88e481d604e9/arm/multi_v7_defconfig/gcc-10/lab-baylibre/baseline-meson8b-odroidc1.html

Thanks,
Ricardo

#regzbot introduced: 5225e1b87432dcf0d0fc3440824b91d04c1d6cc1
#regzbot title: no serial output in KernelCI tests on meson8b-odroidc1
for stable-4.14

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