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drm/amd/display: Only initialize LSDMA if it is supported in DMU

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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>
This commit is contained in:
Alvin Lee
2025-10-23 15:26:33 -04:00
committed by Alex Deucher
parent 0ea8176ce6
commit edcace98fd
2 changed files with 4 additions and 0 deletions
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3
drivers/gpu/drm/amd/display/dc/dc_dmub_srv.c
View File

@@ -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;

1
drivers/gpu/drm/amd/display/dmub/inc/dmub_cmd.h
View File

@@ -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 {