linux-kernel - Re: [PATCH v5 2/7] dt-bindings: remoteproc: Add compatibility for TEE support

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Message-ID: <dfb3c96e-0684-4e61-b1c9-5a83f61e0418@kernel.org>
Date: Tue, 21 May 2024 11:24:57 +0200
From: Krzysztof Kozlowski <krzk@...nel.org>
To: Arnaud Pouliquen <arnaud.pouliquen@...s.st.com>,
 Bjorn Andersson <andersson@...nel.org>,
 Mathieu Poirier <mathieu.poirier@...aro.org>
Cc: linux-remoteproc@...r.kernel.org, linux-kernel@...r.kernel.org,
 linux-stm32@...md-mailman.stormreply.com
Subject: Re: [PATCH v5 2/7] dt-bindings: remoteproc: Add compatibility for TEE
 support

On 21/05/2024 10:09, Arnaud Pouliquen wrote:
> The "st,stm32mp1-m4-tee" compatible is utilized in a system configuration
> where the Cortex-M4 firmware is loaded by the Trusted execution Environment
> (TEE).
> For instance, this compatible is used in both the Linux and OP-TEE
> device-tree:
> - In OP-TEE, a node is defined in the device tree with the
>   st,stm32mp1-m4-tee to support signed remoteproc firmware.
>   Based on DT properties, OP-TEE authenticates, loads, starts, and stops
>   the firmware.
> - On Linux, when the compatibility is set, the Cortex-M resets should not
>   be declared in the device tree.
> 

Not tested.

Please use scripts/get_maintainers.pl to get a list of necessary people
and lists to CC. It might happen, that command when run on an older
kernel, gives you outdated entries. Therefore please be sure you base
your patches on recent Linux kernel.

Tools like b4 or scripts/get_maintainer.pl provide you proper list of
people, so fix your workflow. Tools might also fail if you work on some
ancient tree (don't, instead use mainline), work on fork of kernel
(don't, instead use mainline) or you ignore some maintainers (really
don't). Just use b4 and everything should be fine, although remember
about `b4 prep --auto-to-cc` if you added new patches to the patchset.

You missed at least devicetree list (maybe more), so this won't be
tested by automated tooling. Performing review on untested code might be
a waste of time, thus I will skip this patch entirely till you follow
the process allowing the patch to be tested.

Please kindly resend and include all necessary To/Cc entries.

Best regards,
Krzysztof