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| author | Muhammad Ahmed <Muhammad.Ahmed@amd.com> | 2025-05-27 12:01:41 -0400 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2025-06-18 12:19:16 -0400 |
| commit | 5fa62c87cffdfe18e0f7c35c2ee3f18c8d2f7408 (patch) | |
| tree | 113171171f5e27b79bc762d9966d407b5bbd1f97 /drivers/gpu/drm/amd/display/dc/bios | |
| parent | 90bc60cef2a3ca0a4ea98d9e6cb7129d64373dab (diff) | |
| download | linux-next-5fa62c87cffdfe18e0f7c35c2ee3f18c8d2f7408.tar.gz linux-next-5fa62c87cffdfe18e0f7c35c2ee3f18c8d2f7408.zip | |
drm/amd/display: Add option to disable PHY SSC reduction on transmitter enable
[WHY]
On some 8k display models flickering or black screens may occur at reduced
PHY SSC.
[HOW]
Add an option to set a workaround bit for these displays to keep the old
SSC value.
Reviewed-by: Nicholas Kazlauskas <nicholas.kazlauskas@amd.com>
Signed-off-by: Muhammad Ahmed <Muhammad.Ahmed@amd.com>
Signed-off-by: Alex Hung <alex.hung@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers/gpu/drm/amd/display/dc/bios')
| -rw-r--r-- | drivers/gpu/drm/amd/display/dc/bios/command_table2.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/gpu/drm/amd/display/dc/bios/command_table2.c b/drivers/gpu/drm/amd/display/dc/bios/command_table2.c index 2c645dffec18..f2b1720a6a66 100644 --- a/drivers/gpu/drm/amd/display/dc/bios/command_table2.c +++ b/drivers/gpu/drm/amd/display/dc/bios/command_table2.c @@ -396,6 +396,7 @@ static enum bp_result transmitter_control_v1_7( process_phy_transition_init_params.display_port_link_rate = link->cur_link_settings.link_rate; process_phy_transition_init_params.transition_bitmask = link->phy_transition_bitmask; } + dig_v1_7.skip_phy_ssc_reduction = link->wa_flags.skip_phy_ssc_reduction; } // Handle PRE_OFF_TO_ON: Process ACPI PHY Transition Interlock |