From: Alvin Lee <[email protected]>

[Description]
- When merging a pipe that was previously pipe split, we need
  to also clear the link resources or the next stream/plane that
  uses the pipe may have an incorrect link resource state

Reviewed-by: Wenjing Liu <[email protected]>
Reviewed-by: Nevenko Stupar <[email protected]>
Acked-by: Jasdeep Dhillon <[email protected]>
Signed-off-by: Alvin Lee <[email protected]>
---
 drivers/gpu/drm/amd/display/dc/dml/dcn32/dcn32_fpu.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/gpu/drm/amd/display/dc/dml/dcn32/dcn32_fpu.c 
b/drivers/gpu/drm/amd/display/dc/dml/dcn32/dcn32_fpu.c
index 815cf13ebe11..13e5542a7028 100644
--- a/drivers/gpu/drm/amd/display/dc/dml/dcn32/dcn32_fpu.c
+++ b/drivers/gpu/drm/amd/display/dc/dml/dcn32/dcn32_fpu.c
@@ -1660,6 +1660,7 @@ bool dcn32_internal_validate_bw(struct dc *dc,
                                dcn20_release_dsc(&context->res_ctx, 
dc->res_pool, &pipe->stream_res.dsc);
                        memset(&pipe->plane_res, 0, sizeof(pipe->plane_res));
                        memset(&pipe->stream_res, 0, sizeof(pipe->stream_res));
+                       memset(&pipe->link_res, 0, sizeof(pipe->link_res));
                        repopulate_pipes = true;
                } else if (pipe->top_pipe && pipe->top_pipe->plane_state == 
pipe->plane_state) {
                        struct pipe_ctx *top_pipe = pipe->top_pipe;
@@ -1675,6 +1676,7 @@ bool dcn32_internal_validate_bw(struct dc *dc,
                        pipe->stream = NULL;
                        memset(&pipe->plane_res, 0, sizeof(pipe->plane_res));
                        memset(&pipe->stream_res, 0, sizeof(pipe->stream_res));
+                       memset(&pipe->link_res, 0, sizeof(pipe->link_res));
                        repopulate_pipes = true;
                } else
                        ASSERT(0); /* Should never try to merge master pipe */
-- 
2.34.1

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