drm/amd/display: Only enable audio if speaker allocation exists

[Why]

In dm_helpers_parse_edid_caps, there is a corner case where no speakers
can be allocated even though the audio mode count is greater than 0.
Enabling audio when no speaker allocations exists can cause issues in
the video stream.

[How]

Add a check to not enable audio unless one or more speaker allocations
exist (since doing this can cause issues in the video stream).

Signed-off-by: Alvin Lee <alvin.lee2@amd.com>
Reviewed-by: Jun Lei <Jun.Lei@amd.com>
Acked-by: Leo Li <sunpeng.li@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 6f9d310de54200175e58737f172f976787080033..c227b86420a0c0ac115477c3e40e6f64f8e0ad2b 100644 (file)
--- a/drivers/gpu/drm/amd/display/dc/core/dc_resource.c
+++ b/drivers/gpu/drm/amd/display/dc/core/dc_resource.c
@@ -2002,7 +2002,7 @@ enum dc_status resource_map_pool_resources(
        /* TODO: Add check if ASIC support and EDID audio */
        if (!stream->converter_disable_audio &&
            dc_is_audio_capable_signal(pipe_ctx->stream->signal) &&
-           stream->audio_info.mode_count) {
+           stream->audio_info.mode_count && stream->audio_info.flags.all) {
                pipe_ctx->stream_res.audio = find_first_free_audio(
                &context->res_ctx, pool, pipe_ctx->stream_res.stream_enc->id);