From: Charlene Liu <charlene....@amd.com>

[ Upstream commit 20300db4aec5ba5edf6f0ad6f7111a51fbea7e10 ]

[Why]
PPLIB not receive the PME when unplug.

Signed-off-by: Charlene Liu <charlene....@amd.com>
Reviewed-by: Chris Park <chris.p...@amd.com>
Acked-by: Leo Li <sunpeng...@amd.com>
Signed-off-by: Alex Deucher <alexander.deuc...@amd.com>
Signed-off-by: Sasha Levin <sas...@kernel.org>
---
 .../gpu/drm/amd/display/dc/dce110/dce110_hw_sequencer.c    | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/amd/display/dc/dce110/dce110_hw_sequencer.c 
b/drivers/gpu/drm/amd/display/dc/dce110/dce110_hw_sequencer.c
index 0941f3c689bc..5f9492d8f0aa 100644
--- a/drivers/gpu/drm/amd/display/dc/dce110/dce110_hw_sequencer.c
+++ b/drivers/gpu/drm/amd/display/dc/dce110/dce110_hw_sequencer.c
@@ -1000,7 +1000,7 @@ void dce110_enable_audio_stream(struct pipe_ctx *pipe_ctx)
 
                
pipe_ctx->stream_res.audio->funcs->az_enable(pipe_ctx->stream_res.audio);
 
-               if (num_audio == 1 && pp_smu != NULL && 
pp_smu->set_pme_wa_enable != NULL)
+               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);
                /* un-mute audio */
@@ -1017,6 +1017,8 @@ void dce110_disable_audio_stream(struct pipe_ctx 
*pipe_ctx, int option)
        pipe_ctx->stream_res.stream_enc->funcs->audio_mute_control(
                        pipe_ctx->stream_res.stream_enc, true);
        if (pipe_ctx->stream_res.audio) {
+               struct pp_smu_funcs_rv *pp_smu = dc->res_pool->pp_smu;
+
                if (option != KEEP_ACQUIRED_RESOURCE ||
                                !dc->debug.az_endpoint_mute_only) {
                        /*only disalbe az_endpoint if power down or free*/
@@ -1036,6 +1038,9 @@ void dce110_disable_audio_stream(struct pipe_ctx 
*pipe_ctx, int option)
                        update_audio_usage(&dc->current_state->res_ctx, 
dc->res_pool, pipe_ctx->stream_res.audio, false);
                        pipe_ctx->stream_res.audio = NULL;
                }
+               if (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);
 
                /* TODO: notify audio driver for if audio modes list changed
                 * add audio mode list change flag */
-- 
2.19.1

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