mirrors/linux
2
0
Fork 0
mirror of https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git synced 2026-06-25 02:21:14 -04:00
Code Issues Packages Projects Releases Wiki Activity

drm/amd/display: Consult MCCS FreeSync cap only if requested & supported

Browse Source 
When the do_mccs parameter is false, we don't call
dm_helpers_read_mccs_caps, so sink->mccs_caps.freesync_supported is
unlikely to be true.

Fixes: 6f71d5dd32 ("drm/amd/display: Read sink freesync support via mccs")
Bug: https://gitlab.freedesktop.org/drm/amd/-/work_items/5286
Signed-off-by: Michel Dänzer <mdaenzer@redhat.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Michel Dänzer
2026-05-18 17:48:09 +02:00
committed by Alex Deucher
parent 408b17765b
commit 115bf5ca31
1 changed files with 6 additions and 8 deletions
Download Patch File Download Diff File Expand all files Collapse all files

14
drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
View File

@@ -13837,17 +13837,15 @@ void amdgpu_dm_update_freesync_caps(struct drm_connector *connector,
} }
/* Handle MCCS */ /* Handle MCCS */
if (do_mccs) if (do_mccs) {
dm_helpers_read_mccs_caps(adev->dm.dc->ctx, amdgpu_dm_connector->dc_link, sink); dm_helpers_read_mccs_caps(adev->dm.dc->ctx, amdgpu_dm_connector->dc_link, sink);
if ((sink->sink_signal == SIGNAL_TYPE_HDMI_TYPE_A || if (sink->edid_caps.freesync_vcp_code && !sink->mccs_caps.freesync_supported)
as_type == FREESYNC_TYPE_PCON_IN_WHITELIST) && freesync_capable = false;
(!sink->edid_caps.freesync_vcp_code ||
(sink->edid_caps.freesync_vcp_code && !sink->mccs_caps.freesync_supported)))
freesync_capable = false;
if (do_mccs && sink->mccs_caps.freesync_supported && freesync_capable) if (sink->mccs_caps.freesync_supported && freesync_capable)
dm_helpers_mccs_vcp_set(adev->dm.dc->ctx, amdgpu_dm_connector->dc_link, sink); dm_helpers_mccs_vcp_set(adev->dm.dc->ctx, amdgpu_dm_connector->dc_link, sink);
}
update: update:
if (dm_con_state) if (dm_con_state)