From: Jinze Xu <jinze...@amd.com>

[Why]
When disconnect fe from be, something such as unstable clock may cause
garbage occurs.

[How]
Send set avmute at the beginning of disable stream and send reset avmute
at the end of enable stream.

Signed-off-by: Jinze Xu <jinze...@amd.com>
Reviewed-by: Anthony Koo <anthony....@amd.com>
Acked-by: Rodrigo Siqueira <rodrigo.sique...@amd.com>
Acked-by: Tony Cheng <tony.ch...@amd.com>
---
 drivers/gpu/drm/amd/display/dc/core/dc_link.c | 8 ++++++++
 1 file changed, 8 insertions(+)

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 e920d046f026..d80b2de3ee82 100644
--- a/drivers/gpu/drm/amd/display/dc/core/dc_link.c
+++ b/drivers/gpu/drm/amd/display/dc/core/dc_link.c
@@ -3244,6 +3244,10 @@ void core_link_enable_stream(
                        dp_set_dsc_enable(pipe_ctx, true);
 
        }
+
+       if (pipe_ctx->stream->signal == SIGNAL_TYPE_HDMI_TYPE_A) {
+               core_link_set_avmute(pipe_ctx, false);
+       }
 }
 
 void core_link_disable_stream(struct pipe_ctx *pipe_ctx)
@@ -3256,6 +3260,10 @@ void core_link_disable_stream(struct pipe_ctx *pipe_ctx)
                        dc_is_virtual_signal(pipe_ctx->stream->signal))
                return;
 
+       if (pipe_ctx->stream->signal == SIGNAL_TYPE_HDMI_TYPE_A) {
+               core_link_set_avmute(pipe_ctx, true);
+       }
+
 #if defined(CONFIG_DRM_AMD_DC_HDCP)
        update_psp_stream_config(pipe_ctx, true);
 #endif
-- 
2.26.2

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