[PATCH 13/23] drm/amd/display: Clear link res when merging a pipe split

[jdhillon]

From: Alvin Lee <Alvin.Lee2 at amd.com>

[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 <Wenjing.Liu at amd.com>
Reviewed-by: Nevenko Stupar <Nevenko.Stupar at amd.com>
Acked-by: Jasdeep Dhillon <jdhillon at amd.com>
Signed-off-by: Alvin Lee <Alvin.Lee2 at amd.com>
---
 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