drm/amd/display: Expose audio inst from DC to DM

[Why]
In order to give pin notifications to the sound driver from DM we need
to know whether audio is enabled on a stream and what pin it's using
from DC.

[How]
Expose the instance via stream status if it's a mapped resource for
the stream. It will be -1 if there's no audio mapped.

Cc: Leo Li <sunpeng.li@amd.com>
Cc: Harry Wentland <harry.wentland@amd.com>
Signed-off-by: Nicholas Kazlauskas <nicholas.kazlauskas@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

diff --git a/drivers/gpu/drm/amd/display/dc/core/dc_resource.c b/drivers/gpu/drm/amd/display/dc/core/dc_resource.c
index 173fcfb..48dfb30 100644 (file)
--- a/drivers/gpu/drm/amd/display/dc/core/dc_resource.c
+++ b/drivers/gpu/drm/amd/display/dc/core/dc_resource.c
@@ -2011,6 +2011,9 @@ enum dc_status resource_map_pool_resources(
                if (context->streams[i] == stream) {
                        context->stream_status[i].primary_otg_inst = pipe_ctx->stream_res.tg->inst;
                        context->stream_status[i].stream_enc_inst = pipe_ctx->stream_res.stream_enc->id;
+                       context->stream_status[i].audio_inst =
+                               pipe_ctx->stream_res.audio ? pipe_ctx->stream_res.audio->inst : -1;
+
                        return DC_OK;
                }
 

diff --git a/drivers/gpu/drm/amd/display/dc/dc_stream.h b/drivers/gpu/drm/amd/display/dc/dc_stream.h
index e253a5c..0fa1c26 100644 (file)
--- a/drivers/gpu/drm/amd/display/dc/dc_stream.h
+++ b/drivers/gpu/drm/amd/display/dc/dc_stream.h
@@ -42,6 +42,7 @@ struct dc_stream_status {
        int primary_otg_inst;
        int stream_enc_inst;
        int plane_count;
+       int audio_inst;
        struct timing_sync_info timing_sync_info;
        struct dc_plane_state *plane_states[MAX_SURFACE_NUM];
 };