linux-kernel - Re: [PATCH v4 2/3] drm: Add MIPI read

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Message-ID: <CAD=FV=V7wxe81Oi+SZdT0ym1FTz94+=_2r25x3Ju3aS4YsW7JQ@mail.gmail.com>
Date: Thu, 14 Aug 2025 16:08:55 -0700
From: Doug Anderson <dianders@...omium.org>
To: Brigham Campbell <me@...ghamcampbell.com>
Cc: maarten.lankhorst@...ux.intel.com, mripard@...nel.org, tzimmermann@...e.de, 
	airlied@...il.com, simona@...ll.ch, linus.walleij@...aro.org, 
	neil.armstrong@...aro.org, jessica.zhang@....qualcomm.com, sam@...nborg.org, 
	skhan@...uxfoundation.org, linux-kernel-mentees@...ts.linux.dev, 
	dri-devel@...ts.freedesktop.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH v4 2/3] drm: Add MIPI read_multi func and two write macros

Hi,

On Wed, Jul 30, 2025 at 8:23 PM Brigham Campbell <me@...ghamcampbell.com> wrote:
>
> Create mipi_dsi_dcs_read_multi(), which accepts a mipi_dsi_multi_context
> struct for improved error handling and cleaner panel driver code.
>
> Create mipi_dsi_dcs_write_var_seq_multi() and
> mipi_dsi_generic_write_var_seq_multi() macros which allow MIPI panel
> drivers to write non-constant data to display controllers.
>
> Reviewed-by: Douglas Anderson <dianders@...omium.org>
> Signed-off-by: Brigham Campbell <me@...ghamcampbell.com>
> ---
>  drivers/gpu/drm/drm_mipi_dsi.c | 37 ++++++++++++++++++++++++++++++++++
>  include/drm/drm_mipi_dsi.h     | 35 ++++++++++++++++++++++++++++++++
>  2 files changed, 72 insertions(+)

I resolved a context conflict with the other recent patch we landed
from you and then landed. Pushed to drm-misc-next:

[2/3] drm: Add MIPI read_multi func and two write macros
      commit: ffc23a204a5f2e763a8cc8a8cfefe0027a6f0ec3