linux-kernel - Re: [PATCH v2 05/11] drm/panel: Add panel driver for Samsung SOFEF01 DDIC

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Message-ID: <7ssxf6rprsllmfte2neuobccnbcxbk4vrintgvrm7aghaqxwma@wivcio66spjh>
Date: Wed, 24 Dec 2025 03:12:52 +0200
From: Dmitry Baryshkov <dmitry.baryshkov@....qualcomm.com>
To: Marijn Suijten <marijn.suijten@...ainline.org>
Cc: Neil Armstrong <neil.armstrong@...aro.org>,
        Sam Ravnborg <sam@...nborg.org>, David Airlie <airlied@...il.com>,
        Rob Herring <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        Conor Dooley <conor+dt@...nel.org>, Andy Gross <agross@...nel.org>,
        Bjorn Andersson <andersson@...nel.org>,
        Jessica Zhang <jesszhan0024@...il.com>,
        Maarten Lankhorst <maarten.lankhorst@...ux.intel.com>,
        Maxime Ripard <mripard@...nel.org>,
        Thomas Zimmermann <tzimmermann@...e.de>,
        Simona Vetter <simona@...ll.ch>,
        Casey Connolly <casey.connolly@...aro.org>,
        Rob Herring <robh@...nel.org>,
        Krzysztof Kozlowski <krzk+dt@...nel.org>,
        Simona Vetter <simona.vetter@...ll.ch>,
        ~postmarketos/upstreaming@...ts.sr.ht,
        AngeloGioacchino Del Regno <angelogioacchino.delregno@...ainline.org>,
        Martin Botka <martin.botka@...ainline.org>,
        Jami Kettunen <jami.kettunen@...ainline.org>,
        dri-devel@...ts.freedesktop.org, linux-kernel@...r.kernel.org,
        devicetree@...r.kernel.org, linux-arm-msm@...r.kernel.org,
        Abhinav Kumar <quic_abhinavk@...cinc.com>,
        Kuogee Hsieh <quic_khsieh@...cinc.com>,
        Jessica Zhang <quic_jesszhan@...cinc.com>,
        AngeloGioacchino Del Regno <angelogioacchino.delregno@...labora.com>,
        Konrad Dybcio <konrad.dybcio@....qualcomm.com>,
        Konrad Dybcio <konradybcio@...nel.org>,
        Dmitry Baryshkov <lumag@...nel.org>
Subject: Re: [PATCH v2 05/11] drm/panel: Add panel driver for Samsung SOFEF01
 DDIC

On Mon, Dec 22, 2025 at 12:32:11AM +0100, Marijn Suijten wrote:
> This Samsung SOFEF01-M Display-Driver-IC is used to drive 1080x2520@...z
> command-mode DSI panels found in many Sony phones:
> - Sony Xperia 5 (kumano bahamut): amb609tc01
> - Sony Xperia 10 II (seine pdx201): ams597ut01
> - Sony Xperia 10 III (lena pdx213): ams597ut04
> - Sony Xperia 10 IV (murray pdx225): ams597ut05
> - Sony Xperia 10 V (zambezi pdx235): ams605dk01
> - Sony Xperia 10 VI (columbia pdx246): ams605dk01
> 
> The amb609tc01 and ams605dk01 come in slightly larger at 6.1" while the
> others are 6.0".
> 
> A "fake" porch calculation is included to artificially bump the clock
> rate necessary to account for "transfer overhead" (DSI packet headers)
> since this is missing from the MSM DSI host driver; porches aren't
> otherwise used on command-mode panels.
> 
> Signed-off-by: Marijn Suijten <marijn.suijten@...ainline.org>
> ---
>  MAINTAINERS                                   |   1 +
>  drivers/gpu/drm/panel/Kconfig                 |  18 +
>  drivers/gpu/drm/panel/Makefile                |   1 +
>  drivers/gpu/drm/panel/panel-samsung-sofef01.c | 463 ++++++++++++++++++++++++++
>  4 files changed, 483 insertions(+)
> 

Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@....qualcomm.com>


-- 
With best wishes
Dmitry