diff options
| author | Alvin Lee <Alvin.Lee2@amd.com> | 2025-10-23 15:26:33 -0400 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2025-11-11 21:54:15 -0500 |
| commit | edcace98fdfe20c485f33cfadabe78fce73cbe36 (patch) | |
| tree | 18aff00d1101109b363b206b5ae5ab9a9f2aad6a /drivers/gpu/drm/amd/display | |
| parent | 0ea8176ce6a912ff7f4ab9a218ef61552230b472 (diff) | |
drm/amd/display: Only initialize LSDMA if it is supported in DMU
Need to check caps flag to determine whether LSDMA is supported in DMU
Reviewed-by: Rafal Ostrowski <rafal.ostrowski@amd.com>
Signed-off-by: Alvin Lee <Alvin.Lee2@amd.com>
Signed-off-by: Fangzhi Zuo <jerry.zuo@amd.com>
Tested-by: Dan Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers/gpu/drm/amd/display')
| -rw-r--r-- | drivers/gpu/drm/amd/display/dc/dc_dmub_srv.c | 3 | ||||
| -rw-r--r-- | drivers/gpu/drm/amd/display/dmub/inc/dmub_cmd.h | 1 |
2 files changed, 4 insertions, 0 deletions
diff --git a/drivers/gpu/drm/amd/display/dc/dc_dmub_srv.c b/drivers/gpu/drm/amd/display/dc/dc_dmub_srv.c index fffbf1983143..7b09af1cb306 100644 --- a/drivers/gpu/drm/amd/display/dc/dc_dmub_srv.c +++ b/drivers/gpu/drm/amd/display/dc/dc_dmub_srv.c @@ -2084,6 +2084,9 @@ bool dmub_lsdma_init(struct dc_dmub_srv *dc_dmub_srv) struct dmub_cmd_lsdma_data *lsdma_data = &cmd.lsdma.lsdma_data; bool result; + if (!dc_dmub_srv->dmub->feature_caps.lsdma_support_in_dmu) + return false; + memset(&cmd, 0, sizeof(cmd)); cmd.cmd_common.header.type = DMUB_CMD__LSDMA; diff --git a/drivers/gpu/drm/amd/display/dmub/inc/dmub_cmd.h b/drivers/gpu/drm/amd/display/dmub/inc/dmub_cmd.h index 9bc512a522e0..e956722209ba 100644 --- a/drivers/gpu/drm/amd/display/dmub/inc/dmub_cmd.h +++ b/drivers/gpu/drm/amd/display/dmub/inc/dmub_cmd.h @@ -721,6 +721,7 @@ struct dmub_feature_caps { uint8_t replay_supported; uint8_t replay_reserved[3]; uint8_t abm_aux_backlight_support; + uint8_t lsdma_support_in_dmu; }; struct dmub_visual_confirm_color { |