[PATCH 08/21] drm/amd/display: New path for enabling DPG

[Rodrigo Siqueira]

From: Wesley Chalmers <Wesley.Chalmers at amd.com>

[WHY]
We want to make enabling test pattern a part of the stream update code
path. This change is the first step towards that goal.

Signed-off-by: Wesley Chalmers <Wesley.Chalmers at amd.com>
Reviewed-by: Aric Cyr <Aric.Cyr at amd.com>
Acked-by: Rodrigo Siqueira <Rodrigo.Siqueira at amd.com>
---
 drivers/gpu/drm/amd/display/dc/core/dc.c   | 12 ++++++++++++
 drivers/gpu/drm/amd/display/dc/dc_stream.h | 11 +++++++++++
 2 files changed, 23 insertions(+)

diff --git a/drivers/gpu/drm/amd/display/dc/core/dc.c b/drivers/gpu/drm/amd/display/dc/core/dc.c
index 8f1cadb823c7..7801b44cfaec 100644
--- a/drivers/gpu/drm/amd/display/dc/core/dc.c
+++ b/drivers/gpu/drm/amd/display/dc/core/dc.c
@@ -2265,6 +2265,9 @@ static void copy_stream_update_to_stream(struct dc *dc,
 
 	if (update->dither_option)
 		stream->dither_option = *update->dither_option;
+
+	if (update->pending_test_pattern)
+		stream->test_pattern = *update->pending_test_pattern;
 	/* update current stream with writeback info */
 	if (update->wb_update) {
 		int i;
@@ -2361,6 +2364,15 @@ static void commit_planes_do_stream_update(struct dc *dc,
 				}
 			}
 
+			if (stream_update->pending_test_pattern) {
+				dc_link_dp_set_test_pattern(stream->link,
+					stream->test_pattern.type,
+					stream->test_pattern.color_space,
+					stream->test_pattern.p_link_settings,
+					stream->test_pattern.p_custom_pattern,
+					stream->test_pattern.cust_pattern_size);
+			}
+
 			/* Full fe update*/
 			if (update_type == UPDATE_TYPE_FAST)
 				continue;
diff --git a/drivers/gpu/drm/amd/display/dc/dc_stream.h b/drivers/gpu/drm/amd/display/dc/dc_stream.h
index b7910976b81a..80b67b860091 100644
--- a/drivers/gpu/drm/amd/display/dc/dc_stream.h
+++ b/drivers/gpu/drm/amd/display/dc/dc_stream.h
@@ -130,6 +130,14 @@ union stream_update_flags {
 	uint32_t raw;
 };
 
+struct test_pattern {
+	enum dp_test_pattern type;
+	enum dp_test_pattern_color_space color_space;
+	struct link_training_settings const *p_link_settings;
+	unsigned char const *p_custom_pattern;
+	unsigned int cust_pattern_size;
+};
+
 struct dc_stream_state {
 	// sink is deprecated, new code should not reference
 	// this pointer
@@ -227,6 +235,8 @@ struct dc_stream_state {
 
 	uint32_t stream_id;
 	bool is_dsc_enabled;
+
+	struct test_pattern test_pattern;
 	union stream_update_flags update_flags;
 };
 
@@ -261,6 +271,7 @@ struct dc_stream_update {
 	struct dc_dsc_config *dsc_config;
 	struct dc_transfer_func *func_shaper;
 	struct dc_3dlut *lut3d_func;
+	struct test_pattern *pending_test_pattern;
 };
 
 bool dc_is_stream_unchanged(
-- 
2.25.1