linux-kernel - Re: [PATCH] ARM: dts: qcom: Add chosen node information for SDX65.

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Message-ID: <b9205016-1f33-74fd-c314-c307412bfca3@quicinc.com>
Date:   Fri, 25 Feb 2022 12:46:26 +0530
From:   Rohit Agarwal <quic_rohiagar@...cinc.com>
To:     Bjorn Andersson <bjorn.andersson@...aro.org>
CC:     <agross@...nel.org>, <robh+dt@...nel.org>,
        <linux-arm-msm@...r.kernel.org>, <devicetree@...r.kernel.org>,
        <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH] ARM: dts: qcom: Add chosen node information for SDX65.


On 2/25/2022 1:14 AM, Bjorn Andersson wrote:
> On Fri 11 Feb 04:20 CST 2022, Rohit Agarwal wrote:
>
>> Add chosen node in the base dtsi file of SDX65.
>>
> While this happens to be the same on most boards, it is still a
> board-specific decision which UART is the debug uart, or if there is one
> at all...
>
> So this property should remain in the dts.
>
> Thanks,
> Bjorn

Without the chosen node in base dtsi, the device is not booting up.
Can we have an empty chosen node in the base dtsi and the board-specific 
details
updated in the respective dts file. The device boots up with this.

Thanks,
Rohit

>> Signed-off-by: Rohit Agarwal <quic_rohiagar@...cinc.com>
>> ---
>>   arch/arm/boot/dts/qcom-sdx65-mtp.dts | 4 ----
>>   arch/arm/boot/dts/qcom-sdx65.dtsi    | 4 ++++
>>   2 files changed, 4 insertions(+), 4 deletions(-)
>>
>> diff --git a/arch/arm/boot/dts/qcom-sdx65-mtp.dts b/arch/arm/boot/dts/qcom-sdx65-mtp.dts
>> index 59457da..3a75c21 100644
>> --- a/arch/arm/boot/dts/qcom-sdx65-mtp.dts
>> +++ b/arch/arm/boot/dts/qcom-sdx65-mtp.dts
>> @@ -14,10 +14,6 @@
>>   	aliases {
>>   		serial0 = &blsp1_uart3;
>>   	};
>> -
>> -	chosen {
>> -		stdout-path = "serial0:115200n8";
>> -	};
>>   };
>>   
>>   &blsp1_uart3 {
>> diff --git a/arch/arm/boot/dts/qcom-sdx65.dtsi b/arch/arm/boot/dts/qcom-sdx65.dtsi
>> index 796641d..653df15 100644
>> --- a/arch/arm/boot/dts/qcom-sdx65.dtsi
>> +++ b/arch/arm/boot/dts/qcom-sdx65.dtsi
>> @@ -17,6 +17,10 @@
>>   	qcom,msm-id = <458 0x10000>, <483 0x10000>, <509 0x10000>;
>>   	interrupt-parent = <&intc>;
>>   
>> +	chosen {
>> +		stdout-path = "serial0:115200n8";
>> +	};
>> +
>>   	memory {
>>   		device_type = "memory";
>>   		reg = <0 0>;
>> -- 
>> 2.7.4
>>