diff options
| author | Max Erenberg <merenber@amd.com> | 2021-11-23 15:10:16 -0500 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2022-04-11 13:51:32 -0400 |
| commit | 1b5c30bf41586fdf4f2313d0b37545975568e29f (patch) | |
| tree | b2c2e23cc7ba289afe5951f87c949dba2e91a6b7 /drivers | |
| parent | 5d5af34072c8b11f60960c3bea57ff9de5877791 (diff) | |
| download | linux-1b5c30bf41586fdf4f2313d0b37545975568e29f.tar.bz2 | |
drm/amd/display: Disallow entering PSR when panel is disconnected
[WHY]
The dGPU cannot enter PSR when it is not connected to a panel.
[HOW]
Added a check to dc_link_set_psr_allow_active
which returns early if panel is disconnected.
Reviewed-by: Harry Vanzylldejong <harry.vanzylldejong@amd.com>
Reviewed-by: Evgenii Krasnikov <Evgenii.Krasnikov@amd.com>
Reviewed-by: Nicholas Choi <Nicholas.Choi@amd.com>
Acked-by: Pavle Kotarac <Pavle.Kotarac@amd.com>
Signed-off-by: Max Erenberg <merenber@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/gpu/drm/amd/display/dc/core/dc_link.c | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/drivers/gpu/drm/amd/display/dc/core/dc_link.c b/drivers/gpu/drm/amd/display/dc/core/dc_link.c index 47b67fd1e84c..22f2d88fab99 100644 --- a/drivers/gpu/drm/amd/display/dc/core/dc_link.c +++ b/drivers/gpu/drm/amd/display/dc/core/dc_link.c @@ -3079,6 +3079,11 @@ bool dc_link_set_psr_allow_active(struct dc_link *link, const bool *allow_active if (!dc_get_edp_link_panel_inst(dc, link, &panel_inst)) return false; + if (allow_active && link->type == dc_connection_none) { + // Don't enter PSR if panel is not connected + return false; + } + /* Set power optimization flag */ if (power_opts && link->psr_settings.psr_power_opt != *power_opts) { link->psr_settings.psr_power_opt = *power_opts; |