8 Dec
2021
8 Dec
'21
1:05 p.m.
08.12.2021 08:22, Sameer Pujar пишет:
On 12/7/2021 11:32 PM, Dmitry Osipenko wrote
If display is already active, then shared power domain is already ungated.
If display is already active, then shared power domain is already ungated. HDA reset is already applied during this ungate. In other words, HDA would be reset as well when display ungates power-domain.
Now, if you'll reload the HDA driver module while display is active, you'll get a different reset behaviour. HDA hardware will be reset on pre-T186, on T186+ it won't be reset.
Please make v2 using devm_reset_control_bulk_get_exclusive(), skipping the non-existent reset, or move the workaround to the BPMP driver like I suggested in the other reply.