[PATCH 07/23] drm/amd/display: Do not trigger timing sync for phantom pipes

[Qingqing Zhuo <qingqing.zhuo@xxxxxxx>]

From: Aurabindo Pillai <aurabindo.pillai@xxxxxxx>

[Why&How]
Doing timing sync seqence for phantom pipes
will not go through since they are not fully
programmed like normal pipes. Skip the sequence
on such pipes

Reviewed-by: Alvin Lee <Alvin.Lee2@xxxxxxx>
Acked-by: Qingqing Zhuo <qingqing.zhuo@xxxxxxx>
Signed-off-by: Aurabindo Pillai <aurabindo.pillai@xxxxxxx>
---
 .../amd/display/dc/dcn10/dcn10_hw_sequencer.c | 26 ++++++++++++++++---
 1 file changed, 23 insertions(+), 3 deletions(-)

diff --git a/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_hw_sequencer.c b/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_hw_sequencer.c
index f4b3ec32a331..305e0c545374 100644
--- a/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_hw_sequencer.c
+++ b/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_hw_sequencer.c
@@ -2244,6 +2244,9 @@ void dcn10_enable_timing_synchronization(
 	DC_SYNC_INFO("Setting up OTG reset trigger\n");
 
 	for (i = 1; i < group_size; i++) {
+		if (grouped_pipes[i]->stream && grouped_pipes[i]->stream->mall_stream_config.type == SUBVP_PHANTOM)
+			continue;
+
 		opp = grouped_pipes[i]->stream_res.opp;
 		tg = grouped_pipes[i]->stream_res.tg;
 		tg->funcs->get_otg_active_size(tg, &width, &height);
@@ -2254,13 +2257,21 @@ void dcn10_enable_timing_synchronization(
 	for (i = 0; i < group_size; i++) {
 		if (grouped_pipes[i]->stream == NULL)
 			continue;
+
+		if (grouped_pipes[i]->stream && grouped_pipes[i]->stream->mall_stream_config.type == SUBVP_PHANTOM)
+			continue;
+
 		grouped_pipes[i]->stream->vblank_synchronized = false;
 	}
 
-	for (i = 1; i < group_size; i++)
+	for (i = 1; i < group_size; i++) {
+		if (grouped_pipes[i]->stream && grouped_pipes[i]->stream->mall_stream_config.type == SUBVP_PHANTOM)
+			continue;
+
 		grouped_pipes[i]->stream_res.tg->funcs->enable_reset_trigger(
 				grouped_pipes[i]->stream_res.tg,
 				grouped_pipes[0]->stream_res.tg->inst);
+	}
 
 	DC_SYNC_INFO("Waiting for trigger\n");
 
@@ -2268,12 +2279,21 @@ void dcn10_enable_timing_synchronization(
 	 * synchronized. Look at last pipe programmed to reset.
 	 */
 
-	wait_for_reset_trigger_to_occur(dc_ctx, grouped_pipes[1]->stream_res.tg);
-	for (i = 1; i < group_size; i++)
+	if (grouped_pipes[1]->stream && grouped_pipes[1]->stream->mall_stream_config.type != SUBVP_PHANTOM)
+		wait_for_reset_trigger_to_occur(dc_ctx, grouped_pipes[1]->stream_res.tg);
+
+	for (i = 1; i < group_size; i++) {
+		if (grouped_pipes[i]->stream && grouped_pipes[i]->stream->mall_stream_config.type == SUBVP_PHANTOM)
+			continue;
+
 		grouped_pipes[i]->stream_res.tg->funcs->disable_reset_trigger(
 				grouped_pipes[i]->stream_res.tg);
+	}
 
 	for (i = 1; i < group_size; i++) {
+		if (grouped_pipes[i]->stream && grouped_pipes[i]->stream->mall_stream_config.type == SUBVP_PHANTOM)
+			continue;
+
 		opp = grouped_pipes[i]->stream_res.opp;
 		tg = grouped_pipes[i]->stream_res.tg;
 		tg->funcs->get_otg_active_size(tg, &width, &height);
-- 
2.25.1