linux-kernel - Re: [PATCH v2 2/7] gpu/drm: panel: add support for LG LD070WX3-SL01 MIPI DSI panel

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Message-ID: <CAD=FV=W=b2ivRzJsJiWMCQLOzEbLQRcFdJvVOGkCPB1n9WFygQ@mail.gmail.com>
Date: Wed, 8 Oct 2025 14:11:29 -0700
From: Doug Anderson <dianders@...omium.org>
To: Svyatoslav Ryhel <clamor95@...il.com>
Cc: Neil Armstrong <neil.armstrong@...aro.org>, Jessica Zhang <quic_jesszhan@...cinc.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>, 
	Rob Herring <robh@...nel.org>, Krzysztof Kozlowski <krzk+dt@...nel.org>, Conor Dooley <conor+dt@...nel.org>, 
	Thierry Reding <thierry.reding@...il.com>, Jonathan Hunter <jonathanh@...dia.com>, 
	Sam Ravnborg <sam@...nborg.org>, dri-devel@...ts.freedesktop.org, 
	devicetree@...r.kernel.org, linux-kernel@...r.kernel.org, 
	linux-tegra@...r.kernel.org
Subject: Re: [PATCH v2 2/7] gpu/drm: panel: add support for LG LD070WX3-SL01
 MIPI DSI panel

Hi,

On Wed, Oct 8, 2025 at 1:28 AM Svyatoslav Ryhel <clamor95@...il.com> wrote:
>
> The LD070WX3 is a Color Active Matrix Liquid Crystal Display with an
> integral Light Emitting Diode (LED) backlight system. The matrix employs
> a-Si Thin Film Transistor as the active element. It is a transmissive type
> display operating in the normally Black mode. This TFT-LCD has 7.0 inches
> diagonally measured active display area with WXGA resolution (800 by 1280
> pixel array).
>
> LG LD070WX3-SL01 MIPI DSI panel was treated as simple DSI panel when it is
> actually not and requires proper setup for correct work. Simple panel work
> relied on preliminary configuration done by bootloader.
>
> Signed-off-by: Svyatoslav Ryhel <clamor95@...il.com>
> ---
>  drivers/gpu/drm/panel/Kconfig             |  13 ++
>  drivers/gpu/drm/panel/Makefile            |   1 +
>  drivers/gpu/drm/panel/panel-lg-ld070wx3.c | 184 ++++++++++++++++++++++
>  drivers/gpu/drm/panel/panel-simple.c      |  31 ----
>  4 files changed, 198 insertions(+), 31 deletions(-)
>  create mode 100644 drivers/gpu/drm/panel/panel-lg-ld070wx3.c

Reviewed-by: Douglas Anderson <dianders@...omium.org>