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drm/amd/display: Disable PSR-SU on eDP panels

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commit e8863f8b0316d8ee1e7e5291e8f2f72c91ac967d upstream.

[Why]
PSR-SU may cause some glitching randomly on several panels.

[How]
Temporarily disable the PSR-SU and fallback to PSR1 for
all eDP panels.

Link: https://gitlab.freedesktop.org/drm/amd/-/issues/3388
Cc: Mario Limonciello <mario.limonciello@amd.com>
Cc: Alex Deucher <alexander.deucher@amd.com>
Reviewed-by: Sun peng Li <sunpeng.li@amd.com>
Signed-off-by: Tom Chung <chiahsuan.chung@amd.com>
Signed-off-by: Roman Li <roman.li@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
(cherry picked from commit 6deeefb820d0efb0b36753622fb982d03b37b3ad)
Cc: stable@vger.kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Tom Chung
2025-02-06 11:31:23 +08:00
committed by Greg Kroah-Hartman
parent 295fadbd3e
commit 64f3a3523d
1 changed files with 2 additions and 1 deletions
Download Patch File Download Diff File Expand all files Collapse all files

3
drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_psr.c
View File

@@ -51,7 +51,8 @@ static bool link_supports_psrsu(struct dc_link *link)
!link->dpcd_caps.psr_info.psr2_su_y_granularity_cap)
return false;
return dc_dmub_check_min_version(dc->ctx->dmub_srv->dmub);
/* Temporarily disable PSR-SU to avoid glitches */
return false;
}
/*