[PATCH 0/3] drm/connector: Provide generic support for underscan

[Boris Brezillon]

Hi,

On Mon,  7 May 2018 16:44:31 +0200
Boris Brezillon <boris.brezillon at bootlin.com> wrote:

> Hello,
> 
> This is an attempt at providing generic support for underscan connector
> props. We already have 3 drivers defining the same underscan, underscan
> vborder and underscan hborder properties (amd, radeon and nouveau) and
> I am about to add a new one, hence my proposal to put the prop parsing
> code in the core and add ->underscan fields to drm_connector_state.
> 
> Note that I use this new infrastructure to support underscan in VC4
> (path 2 and 3) but did not patch existing drivers yet, mainly because I
> don't want to do this work before making sure I got the generic bits
> right.

Thanks everyone for your reviews. After the discussion we had on IRC
and the feedback I had on this patchset it's a bit unclear to me what
the next iteration should look like. Should I continue with the
underscan props, should I use TV margins exposed by the TV connector
state, should I create new props?

Remember that all I need is a way to define margins in order to let
the VC4 HW scaler shrink the planes and adjust their positions on the
screen.

Thanks,

Boris