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SubjectRe: [PATCH 6/6 v2] ARM: Add support for the display controllers in VT8500 and WM8505
From
2010/11/8 Arnd Bergmann <arnd@arndb.de>:
> On Sunday 07 November 2010, Alexey Charkov wrote:
>>  drivers/video/Kconfig         |   26 +++
>>  drivers/video/Makefile        |    3 +
>>  drivers/video/vt8500lcdfb.c   |  452 +++++++++++++++++++++++++++++++++++++++++
>>  drivers/video/vt8500lcdfb.h   |   34 +++
>>  drivers/video/wm8505fb.c      |  438 +++++++++++++++++++++++++++++++++++++++
>>  drivers/video/wm8505fb_regs.h |   76 +++++++
>>  drivers/video/wmt_ge_rops.c   |  186 +++++++++++++++++
>>  drivers/video/wmt_ge_rops.h   |    5 +
>
> From a very brief look, the two drivers look rather similar. What is the
> reason to have separate drivers instead of just one?
>
> Could you perhaps take the common parts and move them into a third module
> that exports symbols to be used by the two drivers?
>

Quite frankly, I would say that all SoC framebuffer drivers are quite
similar ;-) Register offsets, timing formats, accepted pixel formats,
buffer alignment requirements are all different, so I do not really
believe that there'd be much benefit from introducing another
abstraction level. This is open to debate, of course.

Alexey
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