linux-kernel - Re: [RFC PATCH 2/2] arm64: dts: qcom: qcm6490: Add qcm6490 idp and rb3 board

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Message-ID: <0116af05-bc55-0654-c341-a62bbb17047b@quicinc.com>
Date:   Fri, 17 Nov 2023 18:13:01 +0530
From:   Komal Bajaj <quic_kbajaj@...cinc.com>
To:     Dmitry Baryshkov <dmitry.baryshkov@...aro.org>
CC:     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>, <quic_nainmeht@...cinc.com>
Subject: Re: [RFC PATCH 2/2] arm64: dts: qcom: qcm6490: Add qcm6490 idp and
 rb3 board



On 11/17/2023 3:03 PM, Dmitry Baryshkov wrote:
> On Fri, 17 Nov 2023 at 08:53, Komal Bajaj <quic_kbajaj@...cinc.com> wrote:
>
> No HTML mail on kernel mailing lists, please. Some developers can have
> 'MIME => junk' mail filters.
> And replying to the HTML mail messes up quotation level.
>
>> On 11/4/2023 3:52 AM, Dmitry Baryshkov wrote:
>>
>> On Fri, 3 Nov 2023 at 20:49, Komal Bajaj <quic_kbajaj@...cinc.com> wrote:
>>
>> Add qcm6490 devicetree file for QCM6490 IDP and QCM6490 RB3
>> platform. QCM6490 is derived from SC7280 meant for various
>> form factor including IoT.
>>
>> Supported features are, as of now:
>> * Debug UART
>> * eMMC (only in IDP)
>> * USB
>>
>> Co-developed-by: Naina Mehta <quic_nainmeht@...cinc.com>
>> Signed-off-by: Naina Mehta <quic_nainmeht@...cinc.com>
>> Signed-off-by: Komal Bajaj <quic_kbajaj@...cinc.com>
>> ---
>>   arch/arm64/boot/dts/qcom/Makefile             |   2 +
>>   arch/arm64/boot/dts/qcom/qcm6490-idp.dts      |  33 ++
>>   .../boot/dts/qcom/qcm6490-iot-common.dtsi     | 291 ++++++++++++++++++
>>   arch/arm64/boot/dts/qcom/qcm6490-rb3.dts      |  26 ++
>>   4 files changed, 352 insertions(+)
>>   create mode 100644 arch/arm64/boot/dts/qcom/qcm6490-idp.dts
>>   create mode 100644 arch/arm64/boot/dts/qcom/qcm6490-iot-common.dtsi
>>   create mode 100644 arch/arm64/boot/dts/qcom/qcm6490-rb3.dts
>>
>>
>> [...]
>>
>>
>> diff --git a/arch/arm64/boot/dts/qcom/qcm6490-rb3.dts b/arch/arm64/boot/dts/qcom/qcm6490-rb3.dts
>> new file mode 100644
>> index 000000000000..5b4c2826ac5c
>> --- /dev/null
>> +++ b/arch/arm64/boot/dts/qcom/qcm6490-rb3.dts
>> @@ -0,0 +1,26 @@
>> +// SPDX-License-Identifier: BSD-3-Clause
>> +/*
>> + * Copyright (c) 2023 Qualcomm Innovation Center, Inc. All rights reserved.
>> + */
>> +
>> +/dts-v1/;
>> +
>> +/* PM7250B is configured to use SID8/9 */
>> +#define PM7250B_SID 8
>> +#define PM7250B_SID1 9
>> +
>> +#include "qcm6490-iot-common.dtsi"
>> +#include "pm7250b.dtsi"
>> +
>> +/ {
>> +       model = "Qualcomm Technologies, Inc. QCM6490 RB3";
>>
>> Is this a marketing name of the platform?
>>
>>
>> Sorry for the confusion, QCS6490 RB3gen2 is the correct marketing name for this board.
>> Will correct this in the next patchset.
> Then it is probably "Qualcomm Technologies, Inc. Robotics RB3gen2"?

Okay.

>
>> +       compatible = "qcom,qcm6490-rb3", "qcom,qcm6490";
>>
>> chassis-type = ?
>>
>>
>> No, this won't be needed as it is an evaluation board and will be used for multiple use cases.
>> So, we don't want to mark it to any specific type.
> Then it is "embedded". We should probably update existing
> dragonboards/RB boards to have this type too.

Okay, will chassis-type.

Thanks
Komal

>