drm/amd/display: Disable PSR-SU on Parade 08-01 TCON too

commit ba1959f71117b27f3099ee789e0815360b4081dd upstream.

Stuart Hayhurst has found that both at bootup and fullscreen VA-API video
is leading to black screens for around 1 second and kernel WARNING [1] traces
when calling dmub_psr_enable() with Parade 08-01 TCON.

These symptoms all go away with PSR-SU disabled for this TCON, so disable
it for now while DMUB traces [2] from the failure can be analyzed and the failure
state properly root caused.

Cc: Marc Rossi <Marc.Rossi@amd.com>
Cc: Hamza Mahfooz <Hamza.Mahfooz@amd.com>
Link: https://gitlab.freedesktop.org/drm/amd/uploads/a832dd515b571ee171b3e3b566e99a13/dmesg.log
Link: https://gitlab.freedesktop.org/drm/amd/uploads/8f13ff3b00963c833e23e68aa8116959/output.log
Closes: https://gitlab.freedesktop.org/drm/amd/-/issues/2645
Reviewed-by: Leo Li <sunpeng.li@amd.com>
Link: https://lore.kernel.org/r/20240205211233.2601-1-mario.limonciello@amd.com
Signed-off-by: Mario Limonciello <mario.limonciello@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
(cherry picked from commit afb634a6823d8d9db23c5fb04f79c5549349628b)
Cc: stable@vger.kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/drivers/gpu/drm/amd/display/modules/power/power_helpers.c b/drivers/gpu/drm/amd/display/modules/power/power_helpers.c
index 3cd52e7a9c77c289bb5f234bd0072f2beeb9b59b..95838c7ab05431277075d5788307e0ea6f3b3492 100644 (file)
--- a/drivers/gpu/drm/amd/display/modules/power/power_helpers.c
+++ b/drivers/gpu/drm/amd/display/modules/power/power_helpers.c
@@ -841,6 +841,8 @@ bool is_psr_su_specific_panel(struct dc_link *link)
                                isPSRSUSupported = false;
                        else if (dpcd_caps->sink_dev_id_str[1] == 0x08 && dpcd_caps->sink_dev_id_str[0] == 0x03)
                                isPSRSUSupported = false;
+                       else if (dpcd_caps->sink_dev_id_str[1] == 0x08 && dpcd_caps->sink_dev_id_str[0] == 0x01)
+                               isPSRSUSupported = false;
                        else if (dpcd_caps->psr_info.force_psrsu_cap == 0x1)
                                isPSRSUSupported = true;
                }