linux-kernel - Re: [PATCH 3/3] drm/panel: Add Novatek NT36532 panel driver

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Message-ID: <CAK6c68h307fRVR=QKJG1pRJuDi1oCSrSYXBamwpAMx_jUgX7fg@mail.gmail.com>
Date: Mon, 13 Oct 2025 10:09:32 +0800
From: 曹俊杰 <caojunjie650@...il.com>
To: Dmitry Baryshkov <dmitry.baryshkov@....qualcomm.com>
Cc: Neil Armstrong <neil.armstrong@...aro.org>, 
	Jessica Zhang <jessica.zhang@....qualcomm.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>, 
	Rob Clark <robin.clark@....qualcomm.com>, Dmitry Baryshkov <lumag@...nel.org>, 
	Abhinav Kumar <abhinav.kumar@...ux.dev>, Sean Paul <sean@...rly.run>, 
	Marijn Suijten <marijn.suijten@...ainline.org>, Antonino Maniscalco <antomani103@...il.com>, 
	Jonathan Marek <jonathan@...ek.ca>, Eugene Lepshy <fekz115@...il.com>, Jun Nie <jun.nie@...aro.org>, 
	dri-devel@...ts.freedesktop.org, devicetree@...r.kernel.org, 
	linux-kernel@...r.kernel.org, linux-arm-msm@...r.kernel.org, 
	freedreno@...ts.freedesktop.org
Subject: Re: [PATCH 3/3] drm/panel: Add Novatek NT36532 panel driver

Dmitry Baryshkov <dmitry.baryshkov@....qualcomm.com> 于2025年10月2日周四 10:05写道：
>On Wed, Oct 01, 2025 at 09:59:14PM +0800, Junjie Cao wrote:
>> Add a driver for panels using the Novatek NT36532 Display Driver IC,
>> including support for the CSOT PPC100HB1-1, found in the OnePlus Pad 2
>> tablets.
>>
>> Signed-off-by: Junjie Cao <caojunjie650@...il.com>
>> ---
>>  MAINTAINERS                                   |   7 +
>>  drivers/gpu/drm/panel/Kconfig                 |  10 +
>>  drivers/gpu/drm/panel/Makefile                |   1 +
>>  drivers/gpu/drm/panel/panel-novatek-nt36532.c | 437 ++++++++++++++++++
>>  4 files changed, 455 insertions(+)
>>  create mode 100644 drivers/gpu/drm/panel/panel-novatek-nt36532.c
>>
>> +
>> +static const struct panel_info csot_panel_info = {
>> +     .width_mm = 250,
>> +     .height_mm = 177,
>> +     .lanes = 4,
>> +     .format = MIPI_DSI_FMT_RGB888,
>> +     .mode_flags = MIPI_DSI_MODE_VIDEO | MIPI_DSI_CLOCK_NON_CONTINUOUS |
>> +                   MIPI_DSI_MODE_LPM,
>> +     .display_mode = csot_display_mode,
>> +     .dsc_slice_per_pkt = 2,
>
>As this is not a part of the standard, what if the DSI host doesn't
>support this feature?
>

Without it, parameters will not be calculated correctly, garbled then.

>> +     .dsc_cfg = &csot_dsc_cfg,
>> +     .init_sequence = csot_init_sequence,
>> +     .is_dual_dsi = true,
>> +};
>> +
>
>--
>With best wishes
>Dmitry

Regards,
Junjie