Re: [PATCH v2 2/7] drm/msm/dp: reduce link rate if failed at link training 1

2021-07-22 Thread Stephen Boyd
Quoting Kuogee Hsieh (2021-07-13 08:54:02) > diff --git a/drivers/gpu/drm/msm/dp/dp_ctrl.c > b/drivers/gpu/drm/msm/dp/dp_ctrl.c > index 27fb0f0..92cf331 100644 > --- a/drivers/gpu/drm/msm/dp/dp_ctrl.c > +++ b/drivers/gpu/drm/msm/dp/dp_ctrl.c > @@ -1634,6 +1617,24 @@ void dp_ctrl_handle_sink_reques

[PATCH v2 2/7] drm/msm/dp: reduce link rate if failed at link training 1

2021-07-13 Thread Kuogee Hsieh
Reduce link rate and re start link training if link training 1 failed due to loss of clock recovery done to fix Link Layer CTS case 4.3.1.7. Also only update voltage and pre-emphasis swing level after link training started to fix Link Layer CTS case 4.3.1.6. Changes in V2: -- replaced cr_status w