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Commit 9132bf47 authored by Christopher Braga's avatar Christopher Braga
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drm/msm/dp: update HDCP stream de-registration logic 



Extend HDCP stream de-registration code to provide virtual channel
ID in addition to the stream id. Also fix flaw in de-registration
logic that resulted in HDCP off being skipped in valid cases.

Change-Id: Iee10193130ca0071b8136e4abade2ba35af20332
Signed-off-by: default avatarChristopher Braga <cbraga@codeaurora.org>
parent 5a70dd3b

drivers/gpu/drm/msm/dp/dp_display.c

+4 −4
Original line number Diff line number Diff line
@@ -291,7 +291,8 @@ static void dp_display_hdcp_deregister_stream(struct dp_display_private *dp, 
		enum dp_stream_id stream_id)

{

	if (dp->hdcp.ops->deregister_streams) {

		struct stream_info stream = {stream_id, 0};

		struct stream_info stream = {stream_id,

				dp->active_panels[stream_id]->vcpi};



		pr_debug("Deregistering stream within HDCP library");

		dp->hdcp.ops->deregister_streams(dp->hdcp.data, 1, &stream);
@@ -1688,9 +1689,8 @@ static int dp_display_pre_disable(struct dp_display *dp_display, void *panel) 
			dp_display_hdcp_deregister_stream(dp,

				dp_panel->stream_id);

			for (i = DP_STREAM_0; i < DP_STREAM_MAX; i++) {

				if (i != dp_panel->stream_id)

					continue;

				if (dp->active_panels[i]) {

				if (i != dp_panel->stream_id &&

						dp->active_panels[i]) {

					pr_debug("Streams are still active. Skip disabling HDCP\n");

					goto stream;

				}