linux-kernel - Re: [PATCH 0/6] usb: typec: and platform/chrome: Add PD revision numbers

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Date:   Mon, 1 Feb 2021 23:04:15 -0800
From:   Benson Leung <bleung@...gle.com>
To:     Greg KH <gregkh@...uxfoundation.org>
Cc:     Benson Leung <bleung@...omium.org>,
        heikki.krogerus@...ux.intel.com, enric.balletbo@...labora.com,
        pmalani@...omium.org, linux-usb@...r.kernel.org,
        linux-kernel@...r.kernel.org, groeck@...omium.org
Subject: Re: [PATCH 0/6] usb: typec: and platform/chrome: Add PD revision
 numbers

Hi Greg,

On Mon, Feb 01, 2021 at 03:32:47PM +0100, Greg KH wrote:
> On Thu, Jan 28, 2021 at 10:14:00PM -0800, Benson Leung wrote:
> > USB Power Delivery has a 3 entity handshake (port, cable, partner), and as
> > of USB PD R3.0, each entity may independently support either Revision 2 or
> > Revision 3 signaling and protocol. In order for userspace and the kernel
> > to properly process the data objects received from a particular SOP*, we
> > must know to which revision of the spec each conforms.
> > 
> > This series adds individual version numbers for the partner and the cable,
> > and exposes them in the appropriate sysfs in /sys/class/typec.
> > 
> > I provide as a first implementation of this, platform/chrome's cros_ec_typec
> > driver, whose underlying status messages convey the SOP and SOP' revisions
> > already.
> 
> I've taken the first 3 patches in my tree now, but the last 3 (for the
> chrome_ec_typec.c driver), they do not apply at all.
> 

Ah, that's because we have some other changes for the cros_ec_typec.c driver
already in platform/chrome for our 5.12 branch.

For 5.12, the changes for cros_ec_typec driver is pretty well contained,
although there is some dependence on typec subsystem changes now.

If I send you a pull request containing all of the changes for this driver we
have already merged, plus these last three that depend on both of our trees
would you merge it through usb for 5.12?

Thanks,
Benson

> thanks,
> 
> greg k-h

-- 
Benson Leung
Staff Software Engineer
Chrome OS Kernel
Google Inc.
bleung@...gle.com
Chromium OS Project
bleung@...omium.org

Download attachment "signature.asc" of type "application/pgp-signature" (229 bytes)