HPD detection on some DW HDMI designed SoC's would need to read and
setup the HPD status explicitly.
So, extend the HPD detection code by adding the dw_hdmi_detect_hpd
function and move the default detection code caller there.
The new read and setup hdp will integrate the same function in
later patches.
Signed-off-by: Jagan Teki <jagan@edgeble.ai>
Reviewed-by: Neil Armstrong <neil.armstrong@linaro.org>
5eacb92071