linux-kernel - Re: [PATCH v3] arm64: dts: qcom: sdm630: Add support for modem remoteproc

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <ebc27dd7-93fe-4d8e-8b8c-4fc1d52cc275@linaro.org>
Date:   Wed, 19 Jul 2023 12:18:17 +0200
From:   Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
To:     Alexey Minnekhanov <alexeymin@...tmarketos.org>,
        Andy Gross <agross@...nel.org>,
        Bjorn Andersson <andersson@...nel.org>,
        Konrad Dybcio <konrad.dybcio@...aro.org>,
        Rob Herring <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        Conor Dooley <conor+dt@...nel.org>,
        linux-arm-msm@...r.kernel.org, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org
Cc:     ~postmarketos/upstreaming@...ts.sr.ht, phone-devel@...r.kernel.org
Subject: Re: [PATCH v3] arm64: dts: qcom: sdm630: Add support for modem
 remoteproc

On 19/07/2023 12:10, Alexey Minnekhanov wrote:
> On 19.07.2023 12:45, Krzysztof Kozlowski wrote:
>> On 19/07/2023 11:34, Alexey Minnekhanov wrote:
>>> Modem subsystem in SDM630/660 is similar to MSM8998 and
>>> device tree node for it is based on the one from msm8998.dtsi.
>>>
>>> Signed-off-by: Alexey Minnekhanov <alexeymin@...tmarketos.org>
>>> ---
>>>
>>> V3: Use memory-region property to specify memory regions, instead
>>>      of using "mba" and "mpss" subnodes.
>>>
>>> V2 link: https://lore.kernel.org/lkml/20230621175046.61521-3-alexeymin@postmarketos.org/
>>>
>>>   arch/arm64/boot/dts/qcom/sdm630.dtsi | 59 ++++++++++++++++++++++++++++
>>>   1 file changed, 59 insertions(+)
>>>
>>> diff --git a/arch/arm64/boot/dts/qcom/sdm630.dtsi b/arch/arm64/boot/dts/qcom/sdm630.dtsi
>>> index 2136ded22f7e..797625cf78ac 100644
>>> --- a/arch/arm64/boot/dts/qcom/sdm630.dtsi
>>> +++ b/arch/arm64/boot/dts/qcom/sdm630.dtsi
>>> @@ -1032,6 +1032,65 @@ data-pins {
>>>   			};
>>>   		};
>>>   
>>> +		remoteproc_mss: remoteproc@...0000 {
>>> +			compatible = "qcom,sdm660-mss-pil";
>>
>> Missing bindings so standard comment:
>>
>> It does not look like you tested the DTS against bindings. Please run
>> `make dtbs_check` (see
>> Documentation/devicetree/bindings/writing-schema.rst or
>> https://www.linaro.org/blog/tips-and-tricks-for-validating-devicetree-sources-with-the-devicetree-schema/
>> for instructions).
>>
>> Best regards,
>> Krzysztof
>>
> 
> Bindings are already in linux-next/master since 
> https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git/commit/?id=ed50ac266f67829d4732c8ca61ef1953c2cc63d0 

Hm, I checked a two days older next. Provide explanations or links if
you resend DTS in such case.

> .
> 
> And I did check DTS against bindings, it spat 2 warnings about new 
> remoteproc node, which do not make much sense to me:
> 
>    DTC_CHK arch/arm64/boot/dts/qcom/sdm660-xiaomi-lavender.dtb
>    .../arch/arm64/boot/dts/qcom/sdm660-xiaomi-lavender.dtb: 
> remoteproc@...0000: qcom,halt-regs:0: [43] is too short

That's ok.

>          From schema: 
> .../Documentation/devicetree/bindings/remoteproc/qcom,msm8996-mss-pil.yaml
>    .../arch/arm64/boot/dts/qcom/sdm660-xiaomi-lavender.dtb: 
> remoteproc@...0000: memory-region: [[45], [46]] is too short
>          From schema: 
> .../Documentation/devicetree/bindings/remoteproc/qcom,msm8996-mss-pil.yaml

This needs fixes. The binding lists expected memory regions and you do
not have three of them.

Best regards,
Krzysztof