I'm working on imx6dl android 5.1(kernel 3.14.52) and have a question on hdmi cec and hpd(hotplug detection).
That is when a monitor send hpd(hotplug detection) low to our board.
Our board won't receive any hdmi cec signal until we re-initilaize hdmi cec function.
I know it is reasonable for not receiving hdmi cec signal when board receive hpd low.
But I am curious to know why this happen?
Is there any register that will disable hdmi cec signal when board receive hpd low?
Any thoughts or suggestions will be greatly appreciated.