Re: [PATCH v2] drm/msm/dp: skip checking LINK_STATUS_UPDATED bit

2020-11-03 Thread Stephen Boyd
Quoting Kuogee Hsieh (2020-10-30 16:23:10) > Some dongle will not clear LINK_STATUS_UPDATED bit after > DPCD read which cause link training failed. This patch $ git grep 'this patch' -- Documentation/process/submitting-patches.rst > just read 6 bytes of DPCD link status from sink and return > wit

[PATCH v2] drm/msm/dp: skip checking LINK_STATUS_UPDATED bit

2020-11-01 Thread Kuogee Hsieh
Some dongle will not clear LINK_STATUS_UPDATED bit after DPCD read which cause link training failed. This patch just read 6 bytes of DPCD link status from sink and return without checking LINK_STATUS_UPDATED bit. Link rate read back from sink need to be convert into really rate by timing 2.7Mb. For