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drm/amd/display: Check that vrefresh is in freesync range 

[Why]
Setting monitor refresh rate below freesync range would cause the
monitor to go blank indefinitely with freesync enabled

[How]
Set vrr_supported and ignore_msa_timing_param according to whether
the refresh rate is above or below the minimum freesync frequency.

Signed-off-by: Ilya Bakoulin <Ilya.Bakoulin@amd.com>
Reviewed-by: Nicholas Kazlauskas <Nicholas.Kazlauskas@amd.com>
Acked-by: Bhawanpreet Lakha <Bhawanpreet.Lakha@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Ilya Bakoulin 2019-01-17 13:40:34 -05:00 committed by Alex Deucher
parent 22d7663f47
commit a057ec460a
1 changed files with 5 additions and 5 deletions
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10
drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
View File

@ -3030,9 +3030,6 @@ create_stream_for_sink(struct amdgpu_dm_connector *aconnector,
update_stream_signal(stream, sink);
if (dm_state && dm_state->freesync_capable)
stream->ignore_msa_timing_param = true;
finish:
if (sink && sink->sink_signal == SIGNAL_TYPE_VIRTUAL && aconnector->base.force != DRM_FORCE_ON)
dc_sink_release(sink);
@ -5356,10 +5353,13 @@ static void get_freesync_config_for_crtc(
struct mod_freesync_config config = {0};
struct amdgpu_dm_connector *aconnector =
to_amdgpu_dm_connector(new_con_state->base.connector);
struct drm_display_mode *mode = &new_crtc_state->base.mode;
new_crtc_state->vrr_supported = new_con_state->freesync_capable;
new_crtc_state->vrr_supported = new_con_state->freesync_capable &&
aconnector->min_vfreq <= drm_mode_vrefresh(mode);
if (new_con_state->freesync_capable) {
if (new_crtc_state->vrr_supported) {
new_crtc_state->stream->ignore_msa_timing_param = true;
config.state = new_crtc_state->base.vrr_enabled ?
VRR_STATE_ACTIVE_VARIABLE :
VRR_STATE_INACTIVE;