From: Fangzhi Zuo <Jerry.Zuo@xxxxxxx>
Fix DP compliance failures 4.2.2.12, 4.3.1.21, 4.9.1.19
caused by imprecise delay on fsleep().
Reviewed-by: Aric Cyr <aric.cyr@xxxxxxx>
Signed-off-by: Fangzhi Zuo <Jerry.Zuo@xxxxxxx>
Signed-off-by: Wayne Lin <wayne.lin@xxxxxxx>
---
.../gpu/drm/amd/display/dc/link/protocols/link_dp_training.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/gpu/drm/amd/display/dc/link/protocols/link_dp_training.c b/drivers/gpu/drm/amd/display/dc/link/protocols/link_dp_training.c
index a42c56a57253..754c895e1bfb 100644
--- a/drivers/gpu/drm/amd/display/dc/link/protocols/link_dp_training.c
+++ b/drivers/gpu/drm/amd/display/dc/link/protocols/link_dp_training.c
@@ -272,7 +272,7 @@ void dp_wait_for_training_aux_rd_interval(
struct dc_link *link,
uint32_t wait_in_micro_secs)
{
- fsleep(wait_in_micro_secs);
+ usleep_range_state(wait_in_micro_secs, wait_in_micro_secs, TASK_UNINTERRUPTIBLE);
DC_LOG_HW_LINK_TRAINING("%s:\n wait = %d\n",
__func__,
--
2.37.3
