[RFC 0/4] drm/mipi-dbi: Support panel drivers

[Noralf Trønnes]

Den 30.07.2019 08.40, skrev Josef Luštický:
> Hi Noralf,
> the patch series looks good, see comments in the patch emails.
> 
> One question: is there a general mechanism to tell a driver not to use
> parallel RGB even though
> the display supports it and "port" is specified in the device-tree?
> 

Not that I know of. It was just one difference that stood out which
would make it easy to have the same panel driver support both DPI and
DBI pixel mode.

Since your panel has a ili9341 I assmue it has onboard RAM? So you
should be able to drive your display in both modes I guess.

Noralf.

> Josef
> 
> po 29. 7. 2019 v 21:55 odesílatel Noralf Trønnes <noralf at tronnes.org> napsal:
>>
>> Inspired by the thread[1] following the submission of a new ili9341
>> panel driver[2], I set out to see if I could support panel drivers in
>> drm_mipi_dbi.
>>
>> I have included the original driver, done some prep work on it, added
>> panel support to drm_mipi_dbi and converted mi0283qt to this new panel
>> driver.
>>
>> The big question is whether or not panel drivers should be allowed to
>> turn themselves into full fledged DRM drivers.
>>
>> Noralf.
>>
>> [1]
>> https://lists.freedesktop.org/archives/dri-devel/2019-July/228193.html
>> [2] https://patchwork.freedesktop.org/patch/316528/
>>
>> Josef Lusticky (1):
>>   drm/panel: Add Ilitek ILI9341 parallel RGB panel driver
>>
>> Noralf Trønnes (3):
>>   drm/panel/ili9341: Rebase and some more
>>   drm/mipi-dbi: Support command mode panel drivers
>>   drm/panel/ili9341: Support mi0283qt
>>
>>  MAINTAINERS                                  |   6 +
>>  drivers/gpu/drm/drm_mipi_dbi.c               | 110 +++++
>>  drivers/gpu/drm/panel/Kconfig                |   9 +
>>  drivers/gpu/drm/panel/Makefile               |   1 +
>>  drivers/gpu/drm/panel/panel-ilitek-ili9341.c | 452 +++++++++++++++++++
>>  include/drm/drm_mipi_dbi.h                   |   8 +
>>  6 files changed, 586 insertions(+)
>>  create mode 100644 drivers/gpu/drm/panel/panel-ilitek-ili9341.c
>>
>> --
>> 2.20.1
>>
>