Re: [PATCH v2 6/7] usb: typec: displayport: Export probe and remove functions

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On Tue, Apr 16, 2019 at 10:46:07AM +0300, Heikki Krogerus wrote:
> On Tue, Apr 16, 2019 at 09:27:03AM +0300, Heikki Krogerus wrote:
> > On Tue, Apr 16, 2019 at 12:45:12AM +0000, Ajay Gupta wrote:
> > > Hi Heikki,
> > > 
> > > > -----Original Message-----
> > > > From: linux-usb-owner@xxxxxxxxxxxxxxx <linux-usb-owner@xxxxxxxxxxxxxxx> On
> > > > Behalf Of Heikki Krogerus
> > > > Sent: Monday, April 15, 2019 5:10 AM
> > > > To: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
> > > > Cc: Ajay Gupta <ajayg@xxxxxxxxxx>; linux-usb@xxxxxxxxxxxxxxx
> > > > Subject: [PATCH v2 6/7] usb: typec: displayport: Export probe and remove
> > > > functions
> > > > 
> > > > From: Ajay Gupta <ajayg@xxxxxxxxxx>
> > > > 
> > > > VirtualLink standard extends the DisplayPort Alt Mode by utilizing also the USB 2
> > > > pins on the USB Type-C connector.
> > > > It uses the same messages as DisplayPort, but not the DP SVID. At the time of
> > > > writing, USB IF has not assigned a Standard ID (SID) for VirtualLink, so the
> > > > manufacturers of VirtualLink adapters use their Vendor IDs as the SVID.
> > > > 
> > > > Since the SVID specific communication is exactly the same as with DisplayPort
> > > > alternate mode, there is no need to implement separate driver for VirtualLink.
> > > > We'll handle the current VirtualLink adapters with probe drivers, and once there
> > > > is SVID assigned for it, we add it to the displayport alt mode driver.
> > > > 
> > > > To support probing drivers, exporting the probe and remove functions, and also
> > > > changing the DP_HEADER helper macro to use the SVID of the alternate mode
> > > > device instead of the DisplayPort alt mode SVID.
> > > > 
> > > > Suggested-by: Heikki Krogerus <heikki.krogerus@xxxxxxxxxxxxxxx>
> > > > Signed-off-by: Ajay Gupta <ajayg@xxxxxxxxxx>
> > > > Signed-off-by: Heikki Krogerus <heikki.krogerus@xxxxxxxxxxxxxxx>
> > > > ---
> > > >  drivers/usb/typec/altmodes/displayport.c | 12 +++++++-----
> > > >  1 file changed, 7 insertions(+), 5 deletions(-)
> > > Looks like you missed adding displayport.h file. It is available in original patch below,
> > >  https://marc.info/?l=linux-usb&m=155492587224379&w=2 
> > 
> > That's the one I picked, and I did compile the driver as well.. I'm
> > not sure what I've done, but I'll resend the series.
> 
> It looks like I broke the patch after I did a small modification to
> it. I had changed your "From" address so it matches your singed-of-by
> address. My compile test passed because the header was an untracked
> file :-)
> 
> Sorry again. Let's do one more test round, and resend.

Ok, dropping this whole series from my queue now, thanks.

greg k-h



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