linux-kernel - Re: [PATCH 1/5] arm64: dts: qcom: qrb2210-rb1: Swap UART index

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Message-ID: <8f306f3b-ab43-411c-9cd3-9e03b93602ee@linaro.org>
Date:   Wed, 6 Sep 2023 14:07:22 +0300
From:   Dmitry Baryshkov <dmitry.baryshkov@...aro.org>
To:     Konrad Dybcio <konrad.dybcio@...aro.org>,
        Andy Gross <agross@...nel.org>,
        Bjorn Andersson <andersson@...nel.org>,
        Rob Herring <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        Conor Dooley <conor+dt@...nel.org>
Cc:     Marijn Suijten <marijn.suijten@...ainline.org>,
        linux-arm-msm@...r.kernel.org, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH 1/5] arm64: dts: qcom: qrb2210-rb1: Swap UART index

On 06/09/2023 14:05, Dmitry Baryshkov wrote:
> On 06/09/2023 12:24, Konrad Dybcio wrote:
>> Newer RB1 board revisions have a debug UART on QUP0. Sadly, it looks
> 
> Nit: I think this is '.. revisions should have...'. Because I was told 
> that the board I got is the final design / production.
> 
>> like even when ordering one in retail, customers receive prototype
>> boards with "Enginering Sample" written on them.
>>
>> Use QUP4 for UART to make all known RB1 boards boot.
>>
>> Fixes: e18771961336 ("arm64: dts: qcom: Add initial QTI RB1 device tree")
>> Signed-off-by: Konrad Dybcio <konrad.dybcio@...aro.org>
> 
> Reported-by: Dmitry Baryshkov <dmitry.baryshkov@...aro.org>

Ugh. This should have been:

Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@...aro.org>


> 
>> ---
>>   arch/arm64/boot/dts/qcom/qrb2210-rb1.dts | 4 ++--
>>   1 file changed, 2 insertions(+), 2 deletions(-)
>>
>> diff --git a/arch/arm64/boot/dts/qcom/qrb2210-rb1.dts 
>> b/arch/arm64/boot/dts/qcom/qrb2210-rb1.dts
>> index eadba066972e..5cda5b761455 100644
>> --- a/arch/arm64/boot/dts/qcom/qrb2210-rb1.dts
>> +++ b/arch/arm64/boot/dts/qcom/qrb2210-rb1.dts
>> @@ -13,7 +13,7 @@ / {
>>       compatible = "qcom,qrb2210-rb1", "qcom,qrb2210", "qcom,qcm2290";
>>       aliases {
>> -        serial0 = &uart0;
>> +        serial0 = &uart4;
>>           sdhc1 = &sdhc_1;
>>           sdhc2 = &sdhc_2;
>>       };
>> @@ -357,7 +357,7 @@ key_volp_n: key-volp-n-state {
>>   };
>>   /* UART connected to the Micro-USB port via a FTDI chip */
>> -&uart0 {
>> +&uart4 {
>>       compatible = "qcom,geni-debug-uart";
>>       status = "okay";
>>   };
>>
> 

-- 
With best wishes
Dmitry