drm/nouveau/i2c: introduce locking at a per-port level
There's also provisions to allow a pad to be locked with a specific
routing, for an indefinite period of time. This will be used in
future patches.
The G94+ pad driver will now also power-down pads when not required.
Signed-off-by:
Ben Skeggs <bskeggs@redhat.com>
parent
d2ae2eb4
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