diff options
| author |   Roman Li <roman.li@amd.com> | 2021-06-08 17:32:16 -0400 |
|---|---|---|
| committer |   Alex Deucher <alexander.deucher@amd.com> | 2021-06-21 17:45:14 -0400 |
| commit | 1a365683d6df1bf22d248fe62d227867793a58f1 (patch) | |
| tree | e30dd2ce37e3dd7e5147a196b48aeb9c1939b110 /drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c | |
| parent | drm/amd/display: get socBB from VBIOS for dcn302 and dcn303 (diff) | |
| download | linux-dev-1a365683d6df1bf22d248fe62d227867793a58f1.tar.xz linux-dev-1a365683d6df1bf22d248fe62d227867793a58f1.zip | |
drm/amd/display: Delay PSR entry
[Why]
After panel power up, if PSR entry attempted too early,
PSR state may get stuck in transition.
This could happen if the panel is not ready
to respond to the SDP PSR entry message.
In this case dmub f/w is unable to abort PSR entry
since abortion is not permitted after the SDP has been sent.
[How]
Skip 5 pageflips before PSR enable.
Signed-off-by: Roman Li <roman.li@amd.com>
Reviewed-by: Hersen Wu <hersenxs.wu@amd.com>
Acked-by: Bindu Ramamurthy <bindu.r@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/amdgpu_dm/amdgpu_dm.c')
| -rw-r--r-- | drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c | 10 |
1 files changed, 9 insertions, 1 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 26f0ebdb38a9..d069661abe45 100644 --- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c +++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c @@ -5900,6 +5900,8 @@ create_stream_for_sink(struct amdgpu_dm_connector *aconnector, stream->use_vsc_sdp_for_colorimetry = true; } mod_build_vsc_infopacket(stream, &stream->vsc_infopacket); + aconnector->psr_skip_count = AMDGPU_DM_PSR_ENTRY_DELAY; + } finish: dc_sink_release(sink); @@ -8713,7 +8715,13 @@ static void amdgpu_dm_commit_planes(struct drm_atomic_state *state, else if ((acrtc_state->update_type == UPDATE_TYPE_FAST) && acrtc_state->stream->link->psr_settings.psr_feature_enabled && !acrtc_state->stream->link->psr_settings.psr_allow_active) { - amdgpu_dm_psr_enable(acrtc_state->stream); + struct amdgpu_dm_connector *aconn = (struct amdgpu_dm_connector *) + acrtc_state->stream->dm_stream_context; + + if (aconn->psr_skip_count > 0) + aconn->psr_skip_count--; + else + amdgpu_dm_psr_enable(acrtc_state->stream); } mutex_unlock(&dm->dc_lock); |