Description

This exposes the ITC content type provided by hdmi spec to v4l2. This allows user space applications to query the driver using V4L2_CID_DV_RX_IT_CONTENT_TYPE. This way user applications can see not only if a hdmi is plugged in or not, but also what type of video is being transmitted.

For my use case specifically, I just want to know if the recieved type is no type (V4L2_DV_IT_CONTENT_TYPE_NO_ITC) or literally anything else.

This would let me detect when my main computer's goes to sleep with the hdmi out from the main computer plugged into the OP5+ HDMI in.

Without this patch, there's no way to tell that happened, as for my gpu/hdmi plug, it keeps the hot plug detection pin high the whole time.

How Has This Been Tested?

tested on orange pi 5 plus

Checklist:

• [ x] I have performed a self-review of my own code
• [ x] My changes generate no new warnings

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