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| author | Ovidiu Bunea <Ovidiu.Bunea@amd.com> | 2025-02-03 15:43:32 -0500 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2025-05-29 11:03:25 +0200 |
| commit | fdee1dc816b4c50c04c34cb8dec5f704e7e75189 (patch) | |
| tree | ef468739e6fae96f09a677b71725f8ff5a571b5d /tools/perf/util/scripting-engines/trace-event-python.c | |
| parent | dd8a734155ae28094d27b96c00a478fa0ee6d5d7 (diff) | |
drm/amd/display: Exit idle optimizations before accessing PHY
commit c488967488d7eff7b9c527d5469c424c15377502 upstream.
[why & how]
By default, DCN HW is in idle optimized state which does not allow access
to PHY registers. If BIOS powers up the DCN, it is fine because they will
power up everything. Only exit idle optimized state when not taking control
from VBIOS.
Fixes: be704e5ef4bd ("Revert "drm/amd/display: Exit idle optimizations before attempt to access PHY"")
Reviewed-by: Charlene Liu <charlene.liu@amd.com>
Signed-off-by: Ovidiu Bunea <Ovidiu.Bunea@amd.com>
Signed-off-by: Roman Li <roman.li@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'tools/perf/util/scripting-engines/trace-event-python.c')
0 files changed, 0 insertions, 0 deletions