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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>
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