[PATCH 6.6 324/396] Revert "drm/amd/display: Fix sending VSC (+ colorimetry) packets for DP/eDP displays without PSR"

Greg Kroah-Hartman
2024-04-01T16:52:30Z

From: Harry Wentland <harry.wentland@amd.com>

commit 78aca9ee5e012e130dbfbd7191bc2302b0cf3b37 upstream.

This causes flicker on a bunch of eDP panels. The info_packet code
also caused regressions on other OSes that we haven't' seen on Linux
yet, but that is likely due to the fact that we haven't had a chance
to test those environments on Linux.

We'll need to revisit this.

This reverts commit 202260f64519e591b5cd99626e441b6559f571a3.

Closes: https://gitlab.freedesktop.org/drm/amd/-/issues/3207
Closes: https://gitlab.freedesktop.org/drm/amd/-/issues/3151
Signed-off-by: Harry Wentland <harry.wentland@amd.com>
Reviewed-by: Rodrigo Siqueira <Rodrigo.Siqueira@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c | 8 ++----
drivers/gpu/drm/amd/display/modules/info_packet/info_packet.c | 13 +++-------
2 files changed, 8 insertions(+), 13 deletions(-)

--- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
+++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
@@ -6121,9 +6121,8 @@ create_stream_for_sink(struct amdgpu_dm_

if (stream->signal == SIGNAL_TYPE_HDMI_TYPE_A)
mod_build_hf_vsif_infopacket(stream, &stream->vsp_infopacket);
- else if (stream->signal == SIGNAL_TYPE_DISPLAY_PORT ||
- stream->signal == SIGNAL_TYPE_DISPLAY_PORT_MST ||
- stream->signal == SIGNAL_TYPE_EDP) {
+
+ if (stream->link->psr_settings.psr_feature_enabled || stream->link->replay_settings.replay_feature_enabled) {
//
// should decide stream support vsc sdp colorimetry capability
// before building vsc info packet
@@ -6139,9 +6138,8 @@ create_stream_for_sink(struct amdgpu_dm_
if (stream->out_transfer_func->tf == TRANSFER_FUNCTION_GAMMA22)
tf = TRANSFER_FUNC_GAMMA_22;
mod_build_vsc_infopacket(stream, &stream->vsc_infopacket, stream->output_color_space, tf);
+ aconnector->psr_skip_count = AMDGPU_DM_PSR_ENTRY_DELAY;

- if (stream->link->psr_settings.psr_feature_enabled)
- aconnector->psr_skip_count = AMDGPU_DM_PSR_ENTRY_DELAY;
}
finish:
dc_sink_release(sink);
--- a/drivers/gpu/drm/amd/display/modules/info_packet/info_packet.c
+++ b/drivers/gpu/drm/amd/display/modules/info_packet/info_packet.c
@@ -147,15 +147,12 @@ void mod_build_vsc_infopacket(const stru
}

/* VSC packet set to 4 for PSR-SU, or 2 for PSR1 */
- if (stream->link->psr_settings.psr_feature_enabled) {
- if (stream->link->psr_settings.psr_version == DC_PSR_VERSION_SU_1)
- vsc_packet_revision = vsc_packet_rev4;
- else if (stream->link->psr_settings.psr_version == DC_PSR_VERSION_1)
- vsc_packet_revision = vsc_packet_rev2;
- }
-
- if (stream->link->replay_settings.config.replay_supported)
+ if (stream->link->psr_settings.psr_version == DC_PSR_VERSION_SU_1)
+ vsc_packet_revision = vsc_packet_rev4;
+ else if (stream->link->replay_settings.config.replay_supported)
vsc_packet_revision = vsc_packet_rev4;
+ else if (stream->link->psr_settings.psr_version == DC_PSR_VERSION_1)
+ vsc_packet_revision = vsc_packet_rev2;

/* Update to revision 5 for extended colorimetry support */
if (stream->use_vsc_sdp_for_colorimetry)