linux-kernel - Re: [PATCH v4 4/6] dts: qcom: arm64: qcom: sdm845: use defines for VMIDs

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Date:   Mon, 3 Apr 2023 17:47:05 +0200
From:   Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
To:     Dylan Van Assche <me@...anvanassche.be>,
        Andy Gross <agross@...nel.org>,
        Bjorn Andersson <andersson@...nel.org>,
        Rob Herring <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>
Cc:     Konrad Dybcio <konrad.dybcio@...aro.org>,
        linux-arm-msm@...r.kernel.org, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org,
        ~postmarketos/upstreaming@...ts.sr.ht, phone-devel@...r.kernel.org
Subject: Re: [PATCH v4 4/6] dts: qcom: arm64: qcom: sdm845: use defines for
 VMIDs

On 03/04/2023 17:32, Dylan Van Assche wrote:
> Hi Krzysztof,
> 
> On Mon, 2023-04-03 at 11:20 +0200, Krzysztof Kozlowski wrote:
>> On 01/04/2023 19:35, Dylan Van Assche wrote:
>>> Use VMID defines for SLPI's FastRPC node in the Qualcomm SDM845 DTS
>>> instead of hardcoded magic values.
>>>
>>> Signed-off-by: Dylan Van Assche <me@...anvanassche.be>
>>> ---
>>>  arch/arm64/boot/dts/qcom/sdm845.dtsi | 4 +++-
>>>  1 file changed, 3 insertions(+), 1 deletion(-)
>>>
>>> diff --git a/arch/arm64/boot/dts/qcom/sdm845.dtsi
>>> b/arch/arm64/boot/dts/qcom/sdm845.dtsi
>>> index 1f25a7f4e02b..dc4b553cbe2e 100644
>>> --- a/arch/arm64/boot/dts/qcom/sdm845.dtsi
>>> +++ b/arch/arm64/boot/dts/qcom/sdm845.dtsi
>>> @@ -13,6 +13,7 @@
>>>  #include <dt-bindings/clock/qcom,rpmh.h>
>>>  #include <dt-bindings/clock/qcom,videocc-sdm845.h>
>>>  #include <dt-bindings/dma/qcom-gpi.h>
>>> +#include <dt-bindings/firmware/qcom,scm.h>
>>>  #include <dt-bindings/gpio/gpio.h>
>>>  #include <dt-bindings/interconnect/qcom,osm-l3.h>
>>>  #include <dt-bindings/interconnect/qcom,sdm845.h>
>>> @@ -3372,7 +3373,8 @@ fastrpc {
>>>                                         qcom,glink-channels =
>>> "fastrpcglink-apps-dsp";
>>>                                         label = "sdsp";
>>>                                         qcom,non-secure-domain;
>>> -                                       qcom,vmids = <0x3 0xF 0x5
>>> 0x6>;
>>
>> Didn't you just add it in previous patch? Don't add incorrect code
>> which
>> you immediately change.
>>
> 
> Both are similar, the code is in fact the same. I followed what Konrad
> suggested in v3 to make a patch on top:

I don't understand. Device nodes are similar, but they are different? If
you add a line in patch X and change it in patch X+1, then something is
wrong. Isn't this the case here or these are different device nodes?


Best regards,
Krzysztof