[PATCH 26/27] drm/amd/display: Set/Reset avmute when disable/enable stream

[Rodrigo Siqueira]

From: Jinze Xu <jinze.xu at 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.xu at amd.com>
Reviewed-by: Anthony Koo <Anthony.Koo at amd.com>
Acked-by: Rodrigo Siqueira <Rodrigo.Siqueira at amd.com>
Acked-by: Tony Cheng <Tony.Cheng at 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