linux-kernel - Re: [PATCH v4 8/8] arm64: dts: qcom: Add support for Pixel 3 and Pixel 3 XL

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Message-ID: <52814cbf-ceda-4bc5-ac76-34fee485b418@oss.qualcomm.com>
Date: Thu, 27 Nov 2025 12:21:34 +0100
From: Konrad Dybcio <konrad.dybcio@....qualcomm.com>
To: david@...t.cz, 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>
Cc: 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>
Subject: Re: [PATCH v4 8/8] arm64: dts: qcom: Add support for Pixel 3 and
 Pixel 3 XL

On 11/25/25 9:29 PM, 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)
>  - Display (Pixel 3 only, and the driver needs improvements)
>  - 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>
> Signed-off-by: David Heidelberg <david@...t.cz>
> ---

Reviewed-by: Konrad Dybcio <konrad.dybcio@....qualcomm.com>

Konrad