[PATCH v2 07/10] drm/fb-helper: Move damage blit code and its setup into separate routine

[Sam Ravnborg]

On Fri, Nov 20, 2020 at 11:25:42AM +0100, Thomas Zimmermann wrote:
> Introduce a separate function for the blit code and its vmap setup. Done
> in preparation of additional changes. No functional changes are made.
> 
> v2:
> 	* print a single warning if damage blitter fails
> 
> Signed-off-by: Thomas Zimmermann <tzimmermann at suse.de>
Reviewed-by: Sam Ravnborg <sam at ravnborg.org>