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authorRoman Li <Roman.Li@amd.com>2025-04-03 13:49:03 -0400
committerAlex Deucher <alexander.deucher@amd.com>2025-04-21 11:28:30 -0400
commite15d09f510d0303b53e556a73fa4236744c19695 (patch)
tree57463f646777234a3f6e8c8b69404a1bd75b61c6 /drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
parentdrm/amd/display: Enable urgent latency adjustment on DCN35 (diff)
downloadlinux-rng-e15d09f510d0303b53e556a73fa4236744c19695.tar.xz
linux-rng-e15d09f510d0303b53e556a73fa4236744c19695.zip
drm/amd/display: enable phy-ssc reduction by default
[Why] Reduction of phy-ssc is needed to support DP2 high pixel clock on dcn35x/36. There's a special flag to enable it in dmub hw params. [How] Set hbr3_phy_ssc to true for dcn35, dcn351 and dcn36. Reviewed-by: Charlene Liu <charlene.liu@amd.com> Signed-off-by: Roman Li <Roman.Li@amd.com> Signed-off-by: Zaeem Mohamed <zaeem.mohamed@amd.com> Tested-by: Mark Broadworth <mark.broadworth@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c')
-rw-r--r--drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
index e700b1edac2c..aa42be3d63b0 100644
--- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
+++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
@@ -1330,6 +1330,7 @@ static int dm_dmub_hw_init(struct amdgpu_device *adev)
case IP_VERSION(3, 5, 1):
case IP_VERSION(3, 6, 0):
hw_params.ips_sequential_ono = adev->external_rev_id > 0x10;
+ hw_params.lower_hbr3_phy_ssc = true;
break;
default:
break;