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Most of the board follows the Qualcomm reference > design. The keyboard, fan and platform profile sit behind the Surface > Aggregator Module on uart22, same as on the Surface Laptop 7. [...] > +&mdss_dp3_out { > + data-lanes = <0 1 2 3>; > + /* HBR2 channel equalization fails, limit the link to HBR */ > + link-frequencies = /bits/ 64 <1620000000 2700000000>; Oops, that's no good - is there a chance this helps? https://lore.kernel.org/linux-arm-msm/20260622-glymur-edp-phy-v1-2-814b45089ac9@oss.qualcomm.com/ [...] > +&usb_0 { > + dr_mode = "host"; OTG should work just fine on both ports Konrad