diff options
| author | Charlene Liu <charlene.liu@amd.com> | 2017-12-13 21:41:42 +0300 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2018-02-19 22:17:17 +0300 |
| commit | a8c40b0b5add7bb1d6172f8addbc42485e311d4a (patch) | |
| tree | 4f9b677b43a30c33538ac33b9a37e19792da46c1 | |
| parent | 02d170e264f1a982aa7ecb5d77ffcbb72f1060fd (diff) | |
| download | linux-a8c40b0b5add7bb1d6172f8addbc42485e311d4a.tar.xz | |
drm/amd/display: PME sw wa to support waking AZ D3
Signed-off-by: Charlene Liu <charlene.liu@amd.com>
Reviewed-by: Tony Cheng <Tony.Cheng@amd.com>
Acked-by: Harry Wentland <harry.wentland@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
| -rw-r--r-- | drivers/gpu/drm/amd/display/dc/core/dc_link.c | 12 | ||||
| -rw-r--r-- | drivers/gpu/drm/amd/display/dc/dm_pp_smu.h | 3 |
2 files changed, 14 insertions, 1 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 a37428271573..2b791b25b3a6 100644 --- a/drivers/gpu/drm/amd/display/dc/core/dc_link.c +++ b/drivers/gpu/drm/amd/display/dc/core/dc_link.c @@ -1788,7 +1788,19 @@ static enum dc_status enable_link( } if (pipe_ctx->stream_res.audio && status == DC_OK) { + struct dc *core_dc = pipe_ctx->stream->ctx->dc; /* notify audio driver for audio modes of monitor */ + struct pp_smu_funcs_rv *pp_smu = core_dc->res_pool->pp_smu; + unsigned int i, num_audio = 1; + for (i = 0; i < MAX_PIPES; i++) { + /*current_state not updated yet*/ + if (core_dc->current_state->res_ctx.pipe_ctx[i].stream_res.audio != NULL) + num_audio++; + } + if (num_audio == 1 && pp_smu != NULL && pp_smu->set_pme_wa_enable != NULL) + /*this is the first audio. apply the PME w/a in order to wake AZ from D3*/ + pp_smu->set_pme_wa_enable(&pp_smu->pp_smu); + pipe_ctx->stream_res.audio->funcs->az_enable(pipe_ctx->stream_res.audio); /* un-mute audio */ diff --git a/drivers/gpu/drm/amd/display/dc/dm_pp_smu.h b/drivers/gpu/drm/amd/display/dc/dm_pp_smu.h index bbfa83252fc1..eac4bfe12257 100644 --- a/drivers/gpu/drm/amd/display/dc/dm_pp_smu.h +++ b/drivers/gpu/drm/amd/display/dc/dm_pp_smu.h @@ -91,7 +91,8 @@ struct pp_smu_funcs_rv { /* which SMU message? are reader and writer WM separate SMU msg? */ void (*set_wm_ranges)(struct pp_smu *pp, struct pp_smu_wm_range_sets *ranges); - + /* PME w/a */ + void (*set_pme_wa_enable)(struct pp_smu *pp); }; #if 0 |