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

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Message-ID: <lfdhib6a7ct36nmj3of2setjft7ydrf6sfgtx7qued7qd56nhc@2xol3grm5re7>
Date: Thu, 2 Oct 2025 05:04:46 +0300
From: Dmitry Baryshkov <dmitry.baryshkov@....qualcomm.com>
To: Junjie Cao <caojunjie650@...il.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

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?

> +	.dsc_cfg = &csot_dsc_cfg,
> +	.init_sequence = csot_init_sequence,
> +	.is_dual_dsi = true,
> +};
> +

-- 
With best wishes
Dmitry