Re: [PATCH v2 7/7] drm/msm/dp: retrain link when loss of symbol lock detected

2021-07-22 Thread Stephen Boyd
Quoting Kuogee Hsieh (2021-07-13 08:54:07) > diff --git a/drivers/gpu/drm/msm/dp/dp_ctrl.c > b/drivers/gpu/drm/msm/dp/dp_ctrl.c > index 6a013b0..20951c8 100644 > --- a/drivers/gpu/drm/msm/dp/dp_ctrl.c > +++ b/drivers/gpu/drm/msm/dp/dp_ctrl.c > @@ -1638,6 +1638,25 @@ static bool dp_ctrl_clock_recov

[PATCH v2 7/7] drm/msm/dp: retrain link when loss of symbol lock detected

2021-07-13 Thread Kuogee Hsieh
Main link symbol locked is achieved at end of link training 2. Some dongle main link symbol may become unlocked again if host did not end link training soon enough after completion of link training 2. Host have to re train main link if loss of symbol lock detected before end link training so that t