msm_dp_display_prepare_link() sets force_link_train = true before calling msm_dp_ctrl_on_link(). On success the flag was never cleared, so msm_dp_ctrl_prepare_stream_on() would unconditionally trigger a second link retrain even though the link was already trained.
Clear force_link_train on the success path so that msm_dp_ctrl_prepare_stream_on() only retrains when the channel EQ check fails, as intended. Signed-off-by: Saurabh Anand <[email protected]> --- drivers/gpu/drm/msm/dp/dp_display.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/drivers/gpu/drm/msm/dp/dp_display.c b/drivers/gpu/drm/msm/dp/dp_display.c index bc646d172abe..40e19d506a45 100644 --- a/drivers/gpu/drm/msm/dp/dp_display.c +++ b/drivers/gpu/drm/msm/dp/dp_display.c @@ -649,6 +649,8 @@ static int msm_dp_display_prepare_link(struct msm_dp_display_private *dp) return rc; } + force_link_train = false; + return msm_dp_ctrl_prepare_stream_on(dp->ctrl, dp->panel, force_link_train); } -- 2.34.1
