linux-kernel - Re: [PATCH v6 8/8] arm64: dts: qcom: Add support for Pixel 3 and Pixel 3 XL

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Message-ID: <2eg7ef244ykfb73c3ztd4z6tqu647j5h3qaobdjxsxywdqtnun@lea2erzgtgka>
Date: Wed, 10 Dec 2025 00:42:35 +0200
From: Dmitry Baryshkov <dmitry.baryshkov@....qualcomm.com>
To: david@...t.cz
Cc: Bjorn Andersson <andersson@...nel.org>,
        Konrad Dybcio <konradybcio@...nel.org>, Rob Herring <robh@...nel.org>,
        Krzysztof Kozlowski <krzk+dt@...nel.org>,
        Conor Dooley <conor+dt@...nel.org>,
        Sumit Semwal <sumit.semwal@...aro.org>,
        Casey Connolly <casey.connolly@...aro.org>,
        Neil Armstrong <neil.armstrong@...aro.org>,
        Jessica Zhang <jesszhan0024@...il.com>,
        Maarten Lankhorst <maarten.lankhorst@...ux.intel.com>,
        Maxime Ripard <mripard@...nel.org>,
        Thomas Zimmermann <tzimmermann@...e.de>,
        David Airlie <airlied@...il.com>, Simona Vetter <simona@...ll.ch>,
        Marijn Suijten <marijn.suijten@...ainline.org>,
        Dmitry Baryshkov <lumag@...nel.org>, Vinod Koul <vkoul@...nel.org>,
        Petr Hodina <phodina@...tonmail.com>, linux-arm-msm@...r.kernel.org,
        devicetree@...r.kernel.org, linux-kernel@...r.kernel.org,
        phone-devel@...r.kernel.org, dri-devel@...ts.freedesktop.org,
        Amit Pundir <amit.pundir@...aro.org>,
        Casey Connolly <casey@...nolly.tech>,
        Joel Selvaraj <foss@...lselvaraj.com>,
        Konrad Dybcio <konrad.dybcio@....qualcomm.com>
Subject: Re: [PATCH v6 8/8] arm64: dts: qcom: Add support for Pixel 3 and
 Pixel 3 XL

On Mon, Dec 08, 2025 at 10:42:01AM +0100, David Heidelberg via B4 Relay wrote:
> From: David Heidelberg <david@...t.cz>
> 
> This adds initial device tree support for the following phones:
> 
>  - Google Pixel 3 (blueline)
>  - Google Pixel 3 XL (crosshatch)
> 
> Both phone boards use the same identifiers and differ only slightly
> in their connected peripherals.
> 
> Supported functionality includes:
>  - Debug UART
>  - UFS
>  - USB-C (peripheral mode)
>  - Framebuffer (both u-boot and Linux)
>  - Display (Pixel 3 only, and the driver needs work)
>  - GPU
>  - Bluetooth
>  - Wi-Fi
> 
> The rmtfs region is allocated using UIO, making it technically "dynamic."
> 
> Its address and size can be read from sysfs:
> 
> $ cat /sys/class/uio/uio0/name
> /sys/class/uio/uio0/maps/map0/addr
> 0x00000000f2701000
> 
> $ cat /sys/class/uio/uio0/maps/map0/size
> 0x0000000000200000
> 
> Like the OnePlus 6, the Pixel 3 requires 1 kB of reserved memory on either
> side of the rmtfs region to work around an XPU bug that would otherwise
> cause erroneous violations when accessing the rmtfs_mem region.
> 
> Co-developed-by: Amit Pundir <amit.pundir@...aro.org>
> Signed-off-by: Amit Pundir <amit.pundir@...aro.org>
> Co-developed-by: Bjorn Andersson <bjorn.andersson@...aro.org>
> Signed-off-by: Bjorn Andersson <bjorn.andersson@...aro.org>
> Co-developed-by: Casey Connolly <casey@...nolly.tech>
> Signed-off-by: Casey Connolly <casey@...nolly.tech>
> Co-developed-by: Joel Selvaraj <foss@...lselvaraj.com>
> Signed-off-by: Joel Selvaraj <foss@...lselvaraj.com>
> Co-developed-by: Sumit Semwal <sumit.semwal@...aro.org>
> Signed-off-by: Sumit Semwal <sumit.semwal@...aro.org>
> Co-developed-by: Vinod Koul <vkoul@...nel.org>
> Signed-off-by: Vinod Koul <vkoul@...nel.org>
> Reviewed-by: Konrad Dybcio <konrad.dybcio@....qualcomm.com>
> Signed-off-by: David Heidelberg <david@...t.cz>
> ---
>  arch/arm64/boot/dts/qcom/Makefile                  |   2 +
>  .../arm64/boot/dts/qcom/sdm845-google-blueline.dts |  85 ++++
>  arch/arm64/boot/dts/qcom/sdm845-google-common.dtsi | 524 +++++++++++++++++++++
>  .../boot/dts/qcom/sdm845-google-crosshatch.dts     |  33 ++
>  4 files changed, 644 insertions(+)
> 
> +
> +&wifi {
> +	vdd-0.8-cx-mx-supply = <&vreg_l5a_0p8>;
> +	vdd-1.8-xo-supply = <&vreg_l7a_1p8>;
> +	vdd-1.3-rfa-supply = <&vreg_l17a_1p3>;
> +	vdd-3.3-ch0-supply = <&vreg_l25a_3p3>;
> +
> +	qcom,snoc-host-cap-8bit-quirk;
> +
> +	status = "okay";
> +};

Missing calbiration data. It needs to be declared here and submitted to
ath10k ML: https://wireless.docs.kernel.org/en/latest/en/users/drivers/ath10k/boardfiles.html


-- 
With best wishes
Dmitry