[PATCH 15/21] drm/dp: Add helper to get post-cursor adjustments

[Philipp Zabel]

On Mon, 2019-08-05 at 14:23 +0200, Thierry Reding wrote:
> From: Thierry Reding <treding at nvidia.com>
> 
> If the transmitter supports pre-emphasis post cursor2 the sink will
> request adjustments in a similar way to how it requests adjustments to
> the voltage swing and pre-emphasis settings.
> 
> Add a helper to extract these adjustments on a per-lane basis from the
> DPCD link status.
> 
> Signed-off-by: Thierry Reding <treding at nvidia.com>

Reviewed-by: Philipp Zabel <p.zabel at pengutronix.de>

regards
Philipp