Per git bisect, the fix for this should be:
commit 6c971c09f38704513c426ba6515f22fb3d6c87d5 Author: Y.C. Chen <email address hidden> Date: Thu Jan 26 09:45:40 2017 +0800
drm/ast: Fixed system hanged if disable P2A
The original ast driver will access some BMC configuration through P2A bridge that can be disabled since AST2300 and after. It will cause system hanged if P2A bridge is disabled. Here is the update to fix it.
Signed-off-by: Y.C. Chen <email address hidden> Signed-off-by: Dave Airlie <email address hidden>
Per git bisect, the fix for this should be:
commit 6c971c09f387045 13c426ba6515f22 fb3d6c87d5
Author: Y.C. Chen <email address hidden>
Date: Thu Jan 26 09:45:40 2017 +0800
drm/ast: Fixed system hanged if disable P2A
The original ast driver will access some BMC configuration through P2A bridge
that can be disabled since AST2300 and after.
It will cause system hanged if P2A bridge is disabled.
Here is the update to fix it.
Signed-off-by: Y.C. Chen <email address hidden>
Signed-off-by: Dave Airlie <email address hidden>