[RFC 2/3] drm: Add helper iterator functions to iterate over plane damage.

[Thomas Hellstrom]

On 04/05/2018 09:52 AM, Daniel Vetter wrote:
>
> TYPE_PLANE I have no idea who needs that. I suggest we just drop it.

I'm assuming CRTC plane coordinates here. They are used for uploading 
contents of hardware planes. Like, in the simplest case, cursor images.

/Thomas