From c872b45f161513a19809c3c69920ff782d848846 Mon Sep 17 00:00:00 2001 From: Jing Zhou Date: Thu, 22 Aug 2019 14:26:33 +0800 Subject: [PATCH] drm/amd/display: verify stream link before link test [ Upstream commit b131932215c993ea5adf8192d1de2e8d6b23048d ] [Why] DP1.2 LL CTS test failure. [How] The failure is caused by not verify stream link is equal to link, only check stream and link is not null. Signed-off-by: Jing Zhou Reviewed-by: Wenjing Liu Acked-by: Bhawanpreet Lakha Signed-off-by: Alex Deucher Signed-off-by: Sasha Levin --- drivers/gpu/drm/amd/display/dc/core/dc_link_hwss.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/drivers/gpu/drm/amd/display/dc/core/dc_link_hwss.c b/drivers/gpu/drm/amd/display/dc/core/dc_link_hwss.c index 79438c4f1e20..a519dbc5ecb6 100644 --- a/drivers/gpu/drm/amd/display/dc/core/dc_link_hwss.c +++ b/drivers/gpu/drm/amd/display/dc/core/dc_link_hwss.c @@ -277,7 +277,8 @@ void dp_retrain_link_dp_test(struct dc_link *link, if (pipes[i].stream != NULL && !pipes[i].top_pipe && !pipes[i].prev_odm_pipe && pipes[i].stream->link != NULL && - pipes[i].stream_res.stream_enc != NULL) { + pipes[i].stream_res.stream_enc != NULL && + pipes[i].stream->link == link) { udelay(100); pipes[i].stream_res.stream_enc->funcs->dp_blank( -- 2.34.1