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Date: Tue, 10 Aug 2021 14:32:18 -0700 From: Stephen Boyd <swboyd@...omium.org> To: Kuogee Hsieh <khsieh@...eaurora.org>, dri-devel@...ts.freedesktop.org, robdclark@...il.com, sean@...rly.run Cc: abhinavk@...eaurora.org, aravindh@...eaurora.org, airlied@...ux.ie, daniel@...ll.ch, bjorn.andersson@...aro.org, linux-arm-msm@...r.kernel.org, freedreno@...ts.freedesktop.org, linux-kernel@...r.kernel.org Subject: Re: [PATCH v3 2/6] drm/msm/dp: reduce link rate if failed at link training 1 Quoting Kuogee Hsieh (2021-08-05 13:44:51) > 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 with link_status[DP_LINK_STATUS_SIZE] > -- replaced dp_ctrl_any_lane_cr_done() with dp_ctrl_colco_recovery_any_ok() > -- replaced dp_ctrl_any_ane_cr_lose() with !drm_dp_clock_recovery_ok() > > Changes in V3: > -- return failed if lane_count <= 1 > > Signed-off-by: Kuogee Hsieh <khsieh@...eaurora.org> > --- Reviewed-by: Stephen Boyd <swboyd@...omium.org>
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