linux-kernel - Re: [PATCH v2 7/7] arm64: dts: qcom: aim300: add AIM300 AIoT

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Date:   Mon, 11 Dec 2023 11:33:30 +0100
From:   Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
To:     Tengfei Fan <quic_tengfan@...cinc.com>, agross@...nel.org,
        andersson@...nel.org, konrad.dybcio@...aro.org, robh+dt@...nel.org,
        krzysztof.kozlowski+dt@...aro.org, conor+dt@...nel.org,
        Dmitry Baryshkov <dmitry.baryshkov@...aro.org>,
        Neil Armstrong <neil.armstrong@...aro.org>,
        Abel Vesa <abel.vesa@...aro.org>,
        Bartosz Golaszewski <bartosz.golaszewski@...aro.org>
Cc:     linux-arm-msm@...r.kernel.org, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org, kernel@...cinc.com,
        Qiang Yu <quic_qianyu@...cinc.com>,
        Ziyue Zhang <quic_ziyuzhan@...cinc.com>
Subject: Re: [PATCH v2 7/7] arm64: dts: qcom: aim300: add AIM300 AIoT

On 07/12/2023 10:28, Tengfei Fan wrote:
> Add AIM300 AIoT board DTS support, including usb, serial, PCIe, and sound
> card functions support.
> 
> Co-developed-by: Qiang Yu <quic_qianyu@...cinc.com>
> Signed-off-by: Qiang Yu <quic_qianyu@...cinc.com>
> Co-developed-by: Ziyue Zhang <quic_ziyuzhan@...cinc.com>
> Signed-off-by: Ziyue Zhang <quic_ziyuzhan@...cinc.com>
> Signed-off-by: Tengfei Fan <quic_tengfan@...cinc.com>
> ---
>  arch/arm64/boot/dts/qcom/Makefile             |   1 +
>  .../boot/dts/qcom/qcs8550-aim300-aiot.dts     | 579 ++++++++++++++++++
>  2 files changed, 580 insertions(+)
>  create mode 100644 arch/arm64/boot/dts/qcom/qcs8550-aim300-aiot.dts
> 
> diff --git a/arch/arm64/boot/dts/qcom/Makefile b/arch/arm64/boot/dts/qcom/Makefile
> index 51335f08a742..779a4305a8b5 100644
> --- a/arch/arm64/boot/dts/qcom/Makefile
> +++ b/arch/arm64/boot/dts/qcom/Makefile
> @@ -92,6 +92,7 @@ dtb-$(CONFIG_ARCH_QCOM)	+= qcm6490-idp.dtb
>  dtb-$(CONFIG_ARCH_QCOM)	+= qcs404-evb-1000.dtb
>  dtb-$(CONFIG_ARCH_QCOM)	+= qcs404-evb-4000.dtb
>  dtb-$(CONFIG_ARCH_QCOM)	+= qcs6490-rb3gen2.dtb
> +dtb-$(CONFIG_ARCH_QCOM) += qcs8550-aim300-aiot.dtb
>  dtb-$(CONFIG_ARCH_QCOM)	+= qdu1000-idp.dtb
>  dtb-$(CONFIG_ARCH_QCOM)	+= qrb2210-rb1.dtb
>  dtb-$(CONFIG_ARCH_QCOM)	+= qrb4210-rb2.dtb
> diff --git a/arch/arm64/boot/dts/qcom/qcs8550-aim300-aiot.dts b/arch/arm64/boot/dts/qcom/qcs8550-aim300-aiot.dts
> new file mode 100644
> index 000000000000..099f28b86559
> --- /dev/null
> +++ b/arch/arm64/boot/dts/qcom/qcs8550-aim300-aiot.dts
> @@ -0,0 +1,579 @@
> +// SPDX-License-Identifier: BSD-3-Clause
> +/*
> + * Copyright (c) 2023, Qualcomm Innovation Center, Inc. All rights reserved.
> + */
> +
> +/dts-v1/;
> +
> +#include <dt-bindings/leds/common.h>
> +#include "qcs8550-aim300.dtsi"

Which includes sm8550.dtsi thus I think this is compatible with sm8550.
You even use sm8550 compatibles here, which is one more hint for that
compatibility.

We followed this convention for RB5, although not for QRU/QDU1000 boards.

Anyway, if you add here new SoC compatible, I would expect to see new
SoC DTSI.

I don't have in my notes any previous consensus or decision in these
matters, so let's discuss now.
+CC few Linaro folks

> +
> +/ {
> +	model = "Qualcomm Technologies, Inc. QCS8550 AIM300 AIOT";
> +	compatible = "qcom,qcs8550-aim300-aiot", "qcom,qcs8550-aim300", "qcom,qcs8550";
> +
> +	aliases {
> +		serial0 = &uart7;
> +	};



Best regards,
Krzysztof