drm/amd/display: skip avmute action

[Why]
For some monitors,
they can't display under BIOS with avmute enabled.

[How]
Add monitor patch for skip avmute action.
Signed-off-by: Brandon Syu <Brandon.Syu@amd.com>
Acked-by: Aurabindo Pillai <aurabindo.pillai@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

drivers/gpu/drm/amd/display/dc/core/dc_link.c

@@ -3283,8 +3283,9 @@ void core_link_disable_stream(struct pipe_ctx *pipe_ctx)
 			dc_is_virtual_signal(pipe_ctx->stream->signal))
 		return;
 
-	if (dc_is_hdmi_signal(pipe_ctx->stream->signal)) {
-		core_link_set_avmute(pipe_ctx, true);
+	if (!pipe_ctx->stream->sink->edid_caps.panel_patch.skip_avmute) {
+		if (dc_is_hdmi_signal(pipe_ctx->stream->signal))
+			core_link_set_avmute(pipe_ctx, true);
 	}
 
 #if defined(CONFIG_DRM_AMD_DC_HDCP)

drivers/gpu/drm/amd/display/dc/dc_types.h

@@ -235,6 +235,7 @@ struct dc_panel_patch {
 	unsigned int disable_fec;
 	unsigned int extra_t3_ms;
 	unsigned int max_dsc_target_bpp_limit;
+	unsigned int skip_avmute;
 };
 
 struct dc_edid_caps {