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| author | Mario Limonciello <mario.limonciello@amd.com> | 2024-02-05 15:12:33 -0600 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2024-11-01 01:56:07 +0100 |
| commit | 5660bcc4dd533005248577d5042f1c48cce2b443 (patch) | |
| tree | 3a42e9bf4b377632c12b79b2485dd13918652ed1 | |
| parent | 4faa6e3e66b3251eb4bf5761d2f3f0f14095aaca (diff) | |
| download | linux-stable-5660bcc4dd533005248577d5042f1c48cce2b443.tar.gz linux-stable-5660bcc4dd533005248577d5042f1c48cce2b443.tar.bz2 linux-stable-5660bcc4dd533005248577d5042f1c48cce2b443.zip | |
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 [1]
Link: https://gitlab.freedesktop.org/drm/amd/uploads/8f13ff3b00963c833e23e68aa8116959/output.log [2]
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>
| -rw-r--r-- | drivers/gpu/drm/amd/display/modules/power/power_helpers.c | 2 |
1 files changed, 2 insertions, 0 deletions
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 67287ad07226..e83ad362e06f 100644 --- a/drivers/gpu/drm/amd/display/modules/power/power_helpers.c +++ b/drivers/gpu/drm/amd/display/modules/power/power_helpers.c @@ -818,6 +818,8 @@ 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; } |