From b5882675074086245589daa21c9d2b205810b83f Mon Sep 17 00:00:00 2001
From: George Shen <george.shen@amd.com>
Date: Tue, 5 Dec 2023 18:34:47 -0500
Subject: [PATCH] drm/amd/display: Set test_pattern_changed update flag on pipe
enable
[Why]
In certain cases, ODM pipe split can occur while stream already has test
pattern enabled. The new pipe used in the ODM combine config must be
configured to output the test pattern in this case.
[How]
If the stream is configured to output test pattern, then set the
test_pattern_changed update flag for the new pipe when it gets enabled.
Reviewed-by: Alvin Lee <alvin.lee2@amd.com>
Acked-by: Wayne Lin <wayne.lin@amd.com>
Signed-off-by: George Shen <george.shen@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
---
drivers/gpu/drm/amd/display/dc/hwss/dcn20/dcn20_hwseq.c | 4 ++++
1 file changed, 4 insertions(+)
diff --git a/drivers/gpu/drm/amd/display/dc/hwss/dcn20/dcn20_hwseq.c b/drivers/gpu/drm/amd/display/dc/hwss/dcn20/dcn20_hwseq.c
index 5bb5e29602769..2c8eff815ec11 100644
--- a/drivers/gpu/drm/amd/display/dc/hwss/dcn20/dcn20_hwseq.c
+++ b/drivers/gpu/drm/amd/display/dc/hwss/dcn20/dcn20_hwseq.c
@@ -1400,6 +1400,10 @@ static void dcn20_detect_pipe_changes(struct pipe_ctx *old_pipe, struct pipe_ctx
new_pipe->update_flags.bits.scaler = 1;
new_pipe->update_flags.bits.viewport = 1;
new_pipe->update_flags.bits.det_size = 1;
+ if (new_pipe->stream->test_pattern.type != DP_TEST_PATTERN_VIDEO_MODE &&
+ new_pipe->stream_res.test_pattern_params.width != 0 &&
+ new_pipe->stream_res.test_pattern_params.height != 0)
+ new_pipe->update_flags.bits.test_pattern_changed = 1;
if (!new_pipe->top_pipe && !new_pipe->prev_odm_pipe) {
new_pipe->update_flags.bits.odm = 1;
new_pipe->update_flags.bits.global_sync = 1;
--
2.30.2