linux-kernel - Re: [PATCH 4/4] dt-bindings: firmware: Add Qualcomm UEFI Secure Application client

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Message-ID: <20220728112150.hs5el6wufljeoqyy@bogus>
Date:   Thu, 28 Jul 2022 12:21:50 +0100
From:   Sudeep Holla <sudeep.holla@....com>
To:     Maximilian Luz <luzmaximilian@...il.com>
Cc:     Andy Gross <agross@...nel.org>,
        Bjorn Andersson <bjorn.andersson@...aro.org>,
        Ard Biesheuvel <ardb@...nel.org>,
        Konrad Dybcio <konrad.dybcio@...ainline.org>,
        Rob Herring <robh+dt@...nel.org>,
        Sudeep Holla <sudeep.holla@....com>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        Steev Klimaszewski <steev@...i.org>,
        Shawn Guo <shawn.guo@...aro.org>,
        Cristian Marussi <cristian.marussi@....com>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        linux-arm-msm@...r.kernel.org, linux-efi@...r.kernel.org,
        devicetree@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH 4/4] dt-bindings: firmware: Add Qualcomm UEFI Secure
 Application client

On Thu, Jul 28, 2022 at 12:05:15PM +0200, Maximilian Luz wrote:
> On 7/28/22 10:23, Sudeep Holla wrote:

[...]

> > Worst case I am fine with that as this needs to be one of and future
> > platforms must get their act right in designing their f/w interface.
>
> Again, I fully agree with you that this situation shouldn't exist. But
> reality is sadly different.
>

As I mentioned I don't have final authority to say yes or no to DT bindings.
I have expressed my opinion and I thing allowing this to be generic via DT
bindings gives no incentive to get the firmware story right. Hence I am happy
to see this as one-off driver change and then we more changes are added to
the driver or similar drivers get added in the future, we have a change to
demand what action has been taken to fix the firmware story.

Just adding DT support(which I disagree) will make future platform to just
use it and not get improvements in areas of discovery or query from the
firmware.

--
Regards,
Sudeep