Messages in this thread | | | Date | Mon, 17 Apr 2023 11:47:39 +0300 | Subject | Re: [PATCH v2 0/2] "no-hpd" support in CDNS DP bridge driver | From | Tomi Valkeinen <> |
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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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