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RE: [RFC PATCH v3 1/2] usb: typec: USB Type-C Port Manager (tcpm)

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Hi Guenter,

> -----Original Message-----
> From: linux-usb-owner@vger.kernel.org [mailto:linux-usb-
> owner@vger.kernel.org] On Behalf Of Guenter Roeck
> Sent: Wednesday, August 24, 2016 5:11 AM
> To: Felipe Balbi <felipe.balbi@linux.intel.com>
> Cc: Chandra Sekhar Anagani <chandra.sekhar.anagani@intel.com>; Bruce
> Ashfield <bruce.ashfield@windriver.com>; Bin Gao <bin.gao@intel.com>;
> Pranav Tipnis <pranav.tipnis@intel.com>; Heikki Krogerus
> <heikki.krogerus@linux.intel.com>; linux-kernel@vger.kernel.org; linux-
> usb@vger.kernel.org; Guenter Roeck <groeck@chromium.org>
> Subject: [RFC PATCH v3 1/2] usb: typec: USB Type-C Port Manager (tcpm)
> 
> This driver implements the USB Type-C Power Delivery state machine
> for both source and sink ports. Alternate mode support is not
> fully implemented.
> 
> The driver attaches to the USB Type-C class code implemented in
> the following patches.
> 
> 	usb: typec: add driver for Intel Whiskey Cove PMIC USB Type-C PHY
> 	usb: USB Type-C connector class
> 
> This driver only implements the state machine. Lower level drivers are
> responsible for
> - Reporting VBUS status and activating VBUS
> - Setting CC lines and providing CC line status
> - Setting line polarity
> - Activating and deactivating VCONN
> - Setting the current limit
> - Activating and deactivating PD message transfers
> - Sending and receiving PD messages
> 
> The driver provides both a functional API as well as callbacks for
> lower level drivers.
> 
> Signed-off-by: Guenter Roeck <groeck@chromium.org>
> ---

A specific question, if power sink wants to request a new power level
after SNK_READY, how to handle it with this tcpm?

Thanks
Li Jun

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RE: [RFC PATCH v3 1/2] usb: typec: USB Type-C Port Manager (tcpm) Jun Li <jun.li@nxp.com> - 2016-09-10 02:30 +0200
  Re: [RFC PATCH v3 1/2] usb: typec: USB Type-C Port Manager (tcpm) Guenter Roeck <groeck@google.com> - 2016-09-10 04:30 +0200
    Re: [RFC PATCH v3 1/2] usb: typec: USB Type-C Port Manager (tcpm) Guenter Roeck <groeck@google.com> - 2016-09-12 04:30 +0200
      RE: [RFC PATCH v3 1/2] usb: typec: USB Type-C Port Manager (tcpm) Jun Li <jun.li@nxp.com> - 2016-09-12 05:20 +0200
    RE: [RFC PATCH v3 1/2] usb: typec: USB Type-C Port Manager (tcpm) Jun Li <jun.li@nxp.com> - 2016-09-12 07:50 +0200

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