Re: [PATCH v2 0/2] "no-hpd" support in CDNS DP bridge driver

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On 05/04/2023 17:24, Jayesh Choudhary wrote:
In J721s2 EVM, DP0 HPD is not connected to correct HPD pin on SOC
which results in HPD detect as always connnected, so when display
is not connected driver continuously retries to read EDID and DPCD
registers.

Where is the DP0 HPD connected to? Nowhere? If it's connected to a pin, can that pin be used as a GPIO? In other words, do we have a HPD, just not with mhdp, or is there just no HPD at all?

 Tomi




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