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Date:   Mon, 18 Sep 2017 12:20:24 +0200
From:   Greg Kroah-Hartman <>
To:     Badhri Jagan Sridharan <>
Cc:     Guenter Roeck <>,,
Subject: Re: [PATCH 1/2] staging: typec: tcpm: Validate source and sink caps

On Thu, Sep 07, 2017 at 06:22:13PM -0700, Badhri Jagan Sridharan wrote:
> The source and sink caps should follow the following rules.
> This patch validates whether the src_caps/snk_caps adheres
> to it.
> 6.4.1 Capabilities Message
> A Capabilities message (Source Capabilities message or Sink
> Capabilities message) shall have at least one Power
> Data Object for vSafe5V. The Capabilities message shall also
> contain the sending Port’s information followed by up to
> 6 additional Power Data Objects. Power Data Objects in a
> Capabilities message shall be sent in the following order:
> 1. The vSafe5V Fixed Supply Object shall always be the first object.
> 2. The remaining Fixed Supply Objects, if present, shall be sent
>    in voltage order; lowest to highest.
> 3. The Battery Supply Objects, if present shall be sent in Minimum
>    Voltage order; lowest to highest.
> 4. The Variable Supply (non-battery) Objects, if present, shall be
>    sent in Minimum Voltage order; lowest to highest.
> Errors in source/sink_caps of the local port will prevent
> the port registration. Whereas, errors in source caps of partner
> device would only log them.
> Signed-off-by: Badhri Jagan Sridharan <>
> ---
>  drivers/staging/typec/pd.h   |   2 +
>  drivers/staging/typec/tcpm.c | 107 +++++++++++++++++++++++++++++++++++++++----
>  drivers/staging/typec/tcpm.h |  16 +++----
>  3 files changed, 108 insertions(+), 17 deletions(-)

Now that these files are moved in my usb tree, can you rebase and resend


greg k-h

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