[PATCH 20/32] media/ivtvfb: Initialize fb_ops to fbdev I/O-memory helpers

[Javier Martinez Canillas]

Thomas Zimmermann <tzimmermann at suse.de> writes:

> Initialize the instance of struct fb_ops with fbdev initializer
> macros for framebuffers in I/O address space. This explictily sets
> the read/write, draw and mmap callbacks to the correct default
> implementation.
>
> Fbdev drivers sometimes rely on the callbacks being NULL for a
> default implementation to be invoked; hence requireing the I/O
> helpers to be built in any case. Setting all callbacks in all
> drivers explicitly will allow to make the I/O helpers optional.
> This benefits systems that do not use these functions.
>
> Set the callbacks via macros. No functional changes.
>
> Signed-off-by: Thomas Zimmermann <tzimmermann at suse.de>
> Cc: Andy Walls <awalls at md.metrocast.net>
> Cc: Mauro Carvalho Chehab <mchehab at kernel.org>
> Cc: linux-media at vger.kernel.org
> ---

Reviewed-by: Javier Martinez Canillas <javierm at redhat.com>

-- 
Best regards,

Javier Martinez Canillas
Core Platforms
Red Hat