Messages in this thread | | | From | Stephen Boyd <> | Date | Mon, 1 Aug 2022 16:23:01 -0500 | Subject | Re: [PATCH v2] drm/msm/dp: delete DP_RECOVERED_CLOCK_OUT_EN to fix tps4 |
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Quoting Kuogee Hsieh (2022-08-01 13:13:50) > Data Symbols scrambled is required for tps4 at link training 2. > Therefore SCRAMBLING_DISABLE bit should not be set for tps4 to > work. > RECOVERED_CLOCK_OUT_EN is for enable simple EYE test for jitter > measurement with minimal equipment for embedded applications purpose > and is not required to be set during normal operation. > Current implementation always have RECOVERED_CLOCK_OUT_EN bit set > which cause SCRAMBLING_DISABLE bit wrongly set at tps4 which prevent > tps4 from working. > This patch delete setting RECOVERED_CLOCK_OUT_EN to fix SCRAMBLING_DISABLE > be wrongly set at tps4. > > Changes in v2: > -- fix Fixes tag > > Fixes: c943b4948b58 ("drm/msm/dp: add displayPort driver support") > Signed-off-by: Kuogee Hsieh <quic_khsieh@quicinc.com> > ---
Reviewed-by: Stephen Boyd <swboyd@chromium.org>
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