linux-kernel - Re: [RFC PATCH 5/6] arm64: dts: qcom: add base AIM500 dtsi

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Date: Tue, 20 Feb 2024 17:11:42 +0800
From: Jingyi Wang <quic_jingyw@...cinc.com>
To: Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>,
        <linux-arm-msm@...r.kernel.org>, <devicetree@...r.kernel.org>,
        <linux-kernel@...r.kernel.org>, <andersson@...nel.org>,
        <konrad.dybcio@...aro.org>, <robh@...nel.org>,
        <krzysztof.kozlowski+dt@...aro.org>, <conor+dt@...nel.org>
CC: <kernel@...cinc.com>, Tingwei Zhang <quic_tingweiz@...cinc.com>
Subject: Re: [RFC PATCH 5/6] arm64: dts: qcom: add base AIM500 dtsi

Hi Krzysztof,

On 2/5/2024 8:35 PM, Krzysztof Kozlowski wrote:
> On 05/02/2024 12:57, Jingyi Wang wrote:
>> Introduce aim500 board dtsi.
>>
>> AIM500 Series is a highly optimized family of modules designed to
>> support AIoT and Generative AI applications based on sm8650p with
>> PMIC and bluetooth functions etc.
>>
>> Co-developed-by: Tingwei Zhang <quic_tingweiz@...cinc.com>
>> Signed-off-by: Tingwei Zhang <quic_tingweiz@...cinc.com>
>> Signed-off-by: Jingyi Wang <quic_jingyw@...cinc.com>
>> ---
>>  arch/arm64/boot/dts/qcom/sm8650p-aim500.dtsi | 409 +++++++++++++++++++
>>  1 file changed, 409 insertions(+)
>>  create mode 100644 arch/arm64/boot/dts/qcom/sm8650p-aim500.dtsi
>>
>> diff --git a/arch/arm64/boot/dts/qcom/sm8650p-aim500.dtsi b/arch/arm64/boot/dts/qcom/sm8650p-aim500.dtsi
>> new file mode 100644
>> index 000000000000..cb857da8653b
>> --- /dev/null
>> +++ b/arch/arm64/boot/dts/qcom/sm8650p-aim500.dtsi
>> @@ -0,0 +1,409 @@
>> +// SPDX-License-Identifier: BSD-3-Clause
>> +/*
>> + * Copyright (c) 2024, Qualcomm Innovation Center, Inc. All rights reserved.
>> + */
>> +
>> +#include <dt-bindings/regulator/qcom,rpmh-regulator.h>
>> +#include "sm8650p.dtsi"
>> +#include "pm8550.dtsi"
>> +#include "pm8550b.dtsi"
>> +#define PMK8550VE_SID 8
>> +#include "pm8550ve.dtsi"
>> +#include "pm8550vs.dtsi"
>> +#include "pmk8550.dtsi"
>> +
>> +/ {
>> +	aliases {
>> +		serial1 = &uart14;
>> +	};
>> +
>> +	vph_pwr: vph-pwr-regulator { };
> 
> What is this? Why is it needed?
> 
> 
> Best regards,
> Krzysztof
> 
vph_pwr is the power supply which differs from board design, it is defined in sm8650p-aim500-aiot.dts,
and it is used in the sm8650p-aim500.dts for regulator supply, so we leave the node here.

Thanks,
Jingyi