1 files changed, 3 insertions, 1 deletions

diff --git a/drivers/gpu/drm/radeon/atombios_dp.c b/drivers/gpu/drm/radeon/atombios_dp.c
index 403ca00b8a55..4ad7643fce5f 100644
--- a/drivers/gpu/drm/radeon/atombios_dp.c
+++ b/drivers/gpu/drm/radeon/atombios_dp.c
@@ -673,9 +673,11 @@ static int radeon_dp_link_train_init(struct radeon_dp_link_train_info *dp_info)
         u8 tmp;
 
         /* power up the sink */
-        if (dp_info->dpcd[0] >= 0x11)
+        if (dp_info->dpcd[0] >= 0x11) {
                 radeon_write_dpcd_reg(dp_info->radeon_connector,
                                       DP_SET_POWER, DP_SET_POWER_D0);
+                usleep_range(1000, 2000);
+        }
 
         /* possibly enable downspread on the sink */
         if (dp_info->dpcd[3] & 0x1)