[PATCH] drm/msm/dp: reset the link phy params before link training
Dmitry Baryshkov
dmitry.baryshkov at linaro.org
Sat Jul 27 12:46:59 UTC 2024
On Fri, 26 Jul 2024 at 01:05, Abhinav Kumar <quic_abhinavk at quicinc.com> wrote:
>
> Before re-starting link training reset the link phy params namely
> the pre-emphasis and voltage swing levels otherwise the next
> link training begins at the previously cached levels which can result
> in link training failures.
>
> Fixes: 8ede2ecc3e5e ("drm/msm/dp: Add DP compliance tests on Snapdragon Chipsets")
> Signed-off-by: Abhinav Kumar <quic_abhinavk at quicinc.com>
Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov at linaro.org>
Tested-by: Dmitry Baryshkov <dmitry.baryshkov at linaro.org> # SM8350-HDK
--
With best wishes
Dmitry
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