hdmi without ddc or i2c

[xiaojun_huang]

Hello, I'm work with imx6q custon board.

We made changes on Android O, using HDMI as the display output.

But we are not connected to I2C or DDC to HDMI, only TMDS and CLOCK, and there is no HPD signal and CEC signal.
We hope to force the output of the HDMI signal. What should we do?
I look forward to hearing from you.

[igorpadykov]

Hi Jun

one can look at tutorial from boundary devices

DVI Support on i.MX6 boards - Boundary Devices 

Best regards
igor
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[xiaojun_huang]

Thanks for your replay.

This patch uses HDMI_DVI_IH_STAT instead of HPD detection,

but I hope that the TMDS signal can be forced out without interrupt method.

Is this feasible?
How should I modify it?