[PATCH 28/76] drm/amd/dal: Allow timing with req_bw equal to max_bw

Harry Wentland harry.wentland at amd.com
Mon Nov 21 23:00:48 UTC 2016


From: Wenjing Liu <Wenjing.Liu at amd.com>

[Description]
Dp compliance fails when receiver requests timing utilizing
the full bandwidth of the link
We report not supported if req_bw is equal to max_bw

Signed-off-by: Wenjing Liu <Wenjing.Liu at amd.com>
Acked-by: Harry Wentland <harry.wentland at amd.com>
---
 drivers/gpu/drm/amd/dal/dc/core/dc_link_dp.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/amd/dal/dc/core/dc_link_dp.c b/drivers/gpu/drm/amd/dal/dc/core/dc_link_dp.c
index c8de9af3a6c0..80213a278d28 100644
--- a/drivers/gpu/drm/amd/dal/dc/core/dc_link_dp.c
+++ b/drivers/gpu/drm/amd/dal/dc/core/dc_link_dp.c
@@ -1285,7 +1285,7 @@ bool dp_validate_mode_timing(
 	req_bw = bandwidth_in_kbps_from_timing(timing);
 	max_bw = bandwidth_in_kbps_from_link_settings(link_setting);
 
-	if (req_bw < max_bw) {
+	if (req_bw <= max_bw) {
 		/* remember the biggest mode here, during
 		 * initial link training (to get
 		 * verified_link_cap), LS sends event about
-- 
2.10.1



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