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drm/amd/display: use encoder's engine id to find matched free audio device

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[ Upstream commit 74eda776d7 ]

[Why]
On some platforms, the encoder id 3 is not populated. So the encoders
are not stored in right order as index (id: 0, 1, 2, 4, 5) at pool. This
would cause encoders id 4 & id 5 to fail when finding corresponding
audio device, defaulting to the first available audio device. As result,
we cannot stream audio into two DP ports with encoders id 4 & id 5.

[How]
It need to create enough audio device objects (0 - 5) to perform matching.
Then use encoder engine id to find matched audio device.

Signed-off-by: Tai Man <taiman.wong@amd.com>
Reviewed-by: Charlene Liu <Charlene.Liu@amd.com>
Acked-by: Leo Li <sunpeng.li@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Tai Man
2019-06-07 17:32:27 -04:00
committed by Greg Kroah-Hartman
parent 2a5e21adc7
commit e7a8a79410
1 changed files with 7 additions and 1 deletions
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8
drivers/gpu/drm/amd/display/dc/core/dc_resource.c
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@@ -222,7 +222,7 @@ bool resource_construct(
* PORT_CONNECTIVITY == 1 (as instructed by HW team).
*/
update_num_audio(&straps, &num_audio, &pool->audio_support);
for (i = 0; i < pool->pipe_count && i < num_audio; i++) {
for (i = 0; i < caps->num_audio; i++) {
struct audio *aud = create_funcs->create_audio(ctx, i);
if (aud == NULL) {
@@ -1713,6 +1713,12 @@ static struct audio *find_first_free_audio(
return pool->audios[i];
}
}
/* use engine id to find free audio */
if ((id < pool->audio_count) && (res_ctx->is_audio_acquired[id] == false)) {
return pool->audios[id];
}
/*not found the matching one, first come first serve*/
for (i = 0; i < pool->audio_count; i++) {
if (res_ctx->is_audio_acquired[i] == false) {