diff options
author | Nikola Cornij <nikola.cornij@amd.com> | 2018-07-04 19:05:16 -0400 |
---|---|---|
committer | Alex Deucher <alexander.deucher@amd.com> | 2018-07-16 16:11:49 -0500 |
commit | 2068afe649ae36f422ced4ecf0efee79e2ff5154 (patch) | |
tree | 42f10920f39fd91072a0020f7083644699572379 /drivers/gpu | |
parent | bf53769d9fc95c89d2f1588463c268c3af987748 (diff) |
drm/amd/display: Add hook for MST root branch info
This allows DM to do any necessary updates before MST discovery starts.
Signed-off-by: Nikola Cornij <nikola.cornij@amd.com>
Reviewed-by: Nikola Cornij <Nikola.Cornij@amd.com>
Acked-by: Leo Li <sunpeng.li@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers/gpu')
-rw-r--r-- | drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_helpers.c | 5 | ||||
-rw-r--r-- | drivers/gpu/drm/amd/display/dc/core/dc_link.c | 4 | ||||
-rw-r--r-- | drivers/gpu/drm/amd/display/dc/dm_helpers.h | 8 |
3 files changed, 17 insertions, 0 deletions
diff --git a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_helpers.c b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_helpers.c index 59b113d11f66..8403b6a9a77b 100644 --- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_helpers.c +++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_helpers.c @@ -169,6 +169,11 @@ static void get_payload_table( mutex_unlock(&mst_mgr->payload_lock); } +void dm_helpers_dp_update_branch_info( + struct dc_context *ctx, + const struct dc_link *link) +{} + /* * Writes payload allocation table in immediate downstream device. */ 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 fe29a398b703..a4429c90c60c 100644 --- a/drivers/gpu/drm/amd/display/dc/core/dc_link.c +++ b/drivers/gpu/drm/amd/display/dc/core/dc_link.c @@ -529,6 +529,10 @@ static bool detect_dp( if (reason == DETECT_REASON_BOOT) boot = true; + dm_helpers_dp_update_branch_info( + link->ctx, + link); + if (!dm_helpers_dp_mst_start_top_mgr( link->ctx, link, boot)) { diff --git a/drivers/gpu/drm/amd/display/dc/dm_helpers.h b/drivers/gpu/drm/amd/display/dc/dm_helpers.h index 7e6b9f5b8906..5d4527d03045 100644 --- a/drivers/gpu/drm/amd/display/dc/dm_helpers.h +++ b/drivers/gpu/drm/amd/display/dc/dm_helpers.h @@ -40,6 +40,14 @@ enum dc_edid_status dm_helpers_parse_edid_caps( const struct dc_edid *edid, struct dc_edid_caps *edid_caps); + +/* + * Update DP branch info + */ +void dm_helpers_dp_update_branch_info( + struct dc_context *ctx, + const struct dc_link *link); + /* * Writes payload allocation table in immediate downstream device. */ |