[PATCH 4/5] drm/damage-helper: Do partial updates if framebuffer has not been changed

[Thomas Zimmermann]

Hi

Am 21.09.22 um 12:18 schrieb Ville Syrjälä:
> 
> Maybe we have two clearly separate classes of uses case:
> 1. devices where only damage to the fb contents matter (eg. some kind of
>     shadow fb that is the same size as the real fb).
> 2. devices where everything about the scanout process matters (eg. PSR)
> ?
> 
> Maybe there should be helpers to deal with just the first case,
> and then some more helpers (or just driver code) to pile the rest
> on top as well when needed?

Does it help if I include my ast patches for review here? We'd have a 
user of the code.

Best regards
Thomas

> 

-- 
Thomas Zimmermann
Graphics Driver Developer
SUSE Software Solutions Germany GmbH
Maxfeldstr. 5, 90409 Nürnberg, Germany
(HRB 36809, AG Nürnberg)
Geschäftsführer: Ivo Totev
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