[PATCH 10/32] auxdisplay/ht16k33: Initialize fb_ops with fbdev macros

[Javier Martinez Canillas]

Thomas Zimmermann <tzimmermann at suse.de> writes:

> Initialize the instance of struct fb_ops with fbdev initializer
> macros for framebuffers in virtual address space. Set the read/write,
> draw and mmap callbacks to the correct implementation and avoid
> implicit defaults. Also select the necessary helpers in Kconfig.
>
> Fbdev drivers sometimes rely on the callbacks being NULL for a
> default I/O-memory-based implementation to be invoked; hence
> requiring 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.
>
> Signed-off-by: Thomas Zimmermann <tzimmermann at suse.de>
> Cc: Miguel Ojeda <ojeda at kernel.org>
> Cc: Robin van der Gracht <robin at protonic.nl>
> ---
>  drivers/auxdisplay/Kconfig   | 5 +----
>  drivers/auxdisplay/ht16k33.c | 7 ++-----
>  2 files changed, 3 insertions(+), 9 deletions(-)
>

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

-- 
Best regards,

Javier Martinez Canillas
Core Platforms
Red Hat