[PATCH] drm/msm/dp: Correct LeMans/Monaco DP phy Swing/Emphasis setting
Dmitry Baryshkov
dmitry.baryshkov at oss.qualcomm.com
Fri Jan 9 07:27:05 PST 2026
On Fri, Jan 09, 2026 at 04:30:21PM +0800, Yongxing Mou wrote:
> Currently, the LeMans/Monaco DP PHY operates in DP mode rather than eDP
> mode. Per the PHY HPG, the Swing and Emphasis settings have been corrected
have been corrected... when?
> to the appropriate DP-mode values.
>
> Additionally, the HPG specifies that the LDO value should be set to 0 when
> in DP mode. These misconfigurations can lead to link training failures on
> certain dongles.
Separate commit
>
> Signed-off-by: Yongxing Mou <yongxing.mou at oss.qualcomm.com>
Missing Fixes, cc:stable
> ---
> drivers/phy/qualcomm/phy-qcom-edp.c | 27 ++++++++++++++++++++++++---
> 1 file changed, 24 insertions(+), 3 deletions(-)
>
--
With best wishes
Dmitry
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