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dcp/dptx: Use dcpext(0) on j473/j474s/j475c #240

Closed jannau closed 7 months ago

jannau commented 7 months ago

This switches j473, j474s and j475c to dcpext(0) as display co-processor for HDMI out. Main reason is that dcpext(0) wakes up after sleep + reset. This simplifies handling in m1n1 a little.

Adds support for the rarely used OOB ASYNC callback channel.

Requires https://github.com/AsahiLinux/m1n1/pull/361

contains kernel-robot fixes for bits/200-dcp

jannau commented 7 months ago

manually merged, thanks