On Wed, Aug 24, 2022 at 07:59:08AM +0200, Greg KH wrote: > On Tue, Aug 23, 2022 at 10:39:49PM +0530, Rajat Khandelwal wrote: > > From: Lee Shawn C <shawn.c.lee@xxxxxxxxx> > > > > There is no point to enter safe mode during DP/TBT configuration > > if the DP/TBT was already configured in mux. This is because safe > > mode is only applicable when there is a need to reconfigure the > > pins in order to avoid damage within/to port partner. > > > > 1. if HPD interrupt arrives and DP mode was already configured, > > safe mode is entered again which is not desired. > > 2. in chrome systems, IOM/mux is already configured before OS > > comes up. Thus, when driver is probed, it blindly enters safe > > mode due to PD negotiations but only after gfx driver lowers > > dp_phy_ownership, will the IOM complete safe mode and send > > ack to PMC. > > Since, that never happens, we see IPC timeout. > > > > Hence, allow safe mode only when pin reconfiguration is not > > required, which makes sense. > > > > Signed-off-by: Rajat Khandelwal <rajat.khandelwal@xxxxxxxxx> > > Signed-off-by: Lee Shawn C <shawn.c.lee@xxxxxxxxx> > > First off, don't use invalid "corp-partner.google.com" email addresses, > you know that's not going to work and just bounce everywhere and there's > no proof that this has any relationship to your intel address :( Also the email verification fails, so it looks like you just spoofed this message, which also makes it impossible for me to accept. greg k-h
