linux-kernel - Re: [PATCH v8 0/6] typec: tcpm: Add sink side support for PPS

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Message-ID: <20180424135749.GA21610@kroah.com>
Date:   Tue, 24 Apr 2018 15:57:49 +0200
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     Adam Thomson <Adam.Thomson.Opensource@...semi.com>,
        Sebastian Reichel <sre@...nel.org>
Cc:     Heikki Krogerus <heikki.krogerus@...ux.intel.com>,
        Guenter Roeck <linux@...ck-us.net>,
        Hans de Goede <hdegoede@...hat.com>, Jun Li <jun.li@....com>,
        linux-usb@...r.kernel.org, linux-pm@...r.kernel.org,
        linux-kernel@...r.kernel.org, support.opensource@...semi.com
Subject: Re: [PATCH v8 0/6] typec: tcpm: Add sink side support for PPS

On Mon, Apr 23, 2018 at 03:10:55PM +0100, Adam Thomson wrote:
> This patch set adds sink side support for the PPS feature introduced in the
> USB PD 3.0 specification.
> 
> The source PPS supply is represented using the Power Supply framework to provide
> access and control APIs for dealing with it's operating voltage and current,
> and switching between a standard PDO and PPS APDO operation. During standard PDO
> operation the voltage and current is read-only, but for APDO PPS these are
> writable as well to allow for control.
> 
> It should be noted that the keepalive for PPS is not handled within TCPM. The
> expectation is that the external user will be required to ensure re-requests
> occur regularly to ensure PPS remains and the source does not hard reset.

Sebastian, any objection from me taking this series through my USB tree?

thanks,

greg k-h