[PATCH 11/17] drm/sun4i: tcon: Add another way for matching mixers with tcon

[Chen-Yu Tsai]

On Sat, Jul 7, 2018 at 1:51 AM, Jernej Skrabec <jernej.skrabec at siol.net> wrote:
> Till now, new way of matching engines with TCONs was reading their
> respective ids and match them by those ids. However, with introduction
> of TCON TOP, that might not be so straightforward anymore.
> - there might be more TCONs that engines (mixers)
> - TCON ids might have non-consecutive ids
>
> Workaround that by matching mixer id with TCON index from TCON list.
>
> For example, R40 has 2 mixers and 4 TCONs. Board designer can choose
> 2 outputs, which are connected to any of those 4 TCONs. As long as there
> are only 2 TCONs enabled in DT, using index in list as alternative id,
> will allow to match them with mixer 0 and 1.
>
> Signed-off-by: Jernej Skrabec <jernej.skrabec at siol.net>

Reviewed-by: Chen-Yu Tsai <wens at csie.org>