On Mon, Sep 07, 2020 at 05:21:52PM +0300, Heikki Krogerus wrote: > From: Utkarsh Patel <utkarsh.h.patel@xxxxxxxxx> > > According to the PMC Type C Subsystem (TCSS) Mux programming guide rev > 0.7, bits 4 and 5 are reserved in Alternate modes. > SBU Orientation and HSL Orientation needs to be configured only during > initial cable detection in USB connect flow based on device property of > "sbu-orientation" and "hsl-orientation". > Configuring these reserved bits in the Alternate modes may result in delay > in display link training or some unexpected behaviour. > So do not configure them while issuing Alternate Mode requests. > > Fixes: ff4a30d5e243 ("usb: typec: mux: intel_pmc_mux: Support for static SBU/HSL orientation") 5.8 is still a stable kernel now, so I'll add cc: stable to this... thanks, greg k-h