linux-kernel - Re: [PATCH v2 1/2] arm64: dts: add minimal DTS for Microsoft Surface Duo2

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Message-ID: <YZxnQfB6V7GOlygq@matsya>
Date:   Tue, 23 Nov 2021 09:30:01 +0530
From:   Vinod Koul <vkoul@...nel.org>
To:     Katherine Perez <kaperez@...ux.microsoft.com>,
        Rob Herring <robh+dt@...nel.org>
Cc:     Andy Gross <agross@...nel.org>,
        Bjorn Andersson <bjorn.andersson@...aro.org>,
        linux-arm-msm@...r.kernel.org, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH v2 1/2] arm64: dts: add minimal DTS for Microsoft Surface
 Duo2

On 22-11-21, 11:05, Katherine Perez wrote:
> This is a minimal devicetree for Microsoft Surface Duo 2 with SM8350
> Chipset
> 
> Signed-off-by: Katherine Perez <kaperez@...ux.microsoft.com>
> ---
> 
> Changes since v1:
> - Change remoteprocs firmware-naming scheme to qcom/sm8350/microsft/*
> - Add chassis-type
> 
>  arch/arm64/boot/dts/qcom/Makefile             |   1 +
>  .../qcom/sm8350-microsoft-surface-duo2.dts    | 369 ++++++++++++++++++
>  2 files changed, 370 insertions(+)
>  create mode 100644 arch/arm64/boot/dts/qcom/sm8350-microsoft-surface-duo2.dts
> 
> diff --git a/arch/arm64/boot/dts/qcom/Makefile b/arch/arm64/boot/dts/qcom/Makefile
> index 6b816eb33309..a8cc6bd3c423 100644
> --- a/arch/arm64/boot/dts/qcom/Makefile
> +++ b/arch/arm64/boot/dts/qcom/Makefile
> @@ -106,4 +106,5 @@ dtb-$(CONFIG_ARCH_QCOM)	+= sm8250-mtp.dtb
>  dtb-$(CONFIG_ARCH_QCOM)	+= sm8250-sony-xperia-edo-pdx203.dtb
>  dtb-$(CONFIG_ARCH_QCOM)	+= sm8250-sony-xperia-edo-pdx206.dtb
>  dtb-$(CONFIG_ARCH_QCOM)	+= sm8350-hdk.dtb
> +dtb-$(CONFIG_ARCH_QCOM)	+= sm8350-microsoft-surface-duo2.dtb
>  dtb-$(CONFIG_ARCH_QCOM)	+= sm8350-mtp.dtb
> diff --git a/arch/arm64/boot/dts/qcom/sm8350-microsoft-surface-duo2.dts b/arch/arm64/boot/dts/qcom/sm8350-microsoft-surface-duo2.dts
> new file mode 100644
> index 000000000000..d4963c9015cb
> --- /dev/null
> +++ b/arch/arm64/boot/dts/qcom/sm8350-microsoft-surface-duo2.dts
> @@ -0,0 +1,369 @@
> +// SPDX-License-Identifier: BSD-3-Clause
> +/*
> + * Copyright (C) 2021, Microsoft Corporation
> + */
> +
> +/dts-v1/;
> +
> +#include <dt-bindings/gpio/gpio.h>
> +#include <dt-bindings/regulator/qcom,rpmh-regulator.h>
> +#include "sm8350.dtsi"
> +#include "pm8350.dtsi"
> +#include "pm8350b.dtsi"
> +#include "pm8350c.dtsi"
> +#include "pmk8350.dtsi"
> +#include "pmr735a.dtsi"
> +#include "pmr735b.dtsi"
> +
> +/ {
> +	model = "Microsoft Surface Duo 2";
> +	compatible = "microsoft,surface-duo2", "qcom,sm8350";
> +	chassis-type = "handset";

This is interesting, I see it used at lot of place, unfortunately, it
does not seem to be documented :(

-- 
~Vinod