[PATCH 1/2] staging: typec: tcpm: Validate source and sink caps

[Guenter Roeck]

On 09/08/2017 12:13 PM, Greg Kroah-Hartman wrote:
> On Fri, Sep 08, 2017 at 10:29:52AM -0700, Badhri Jagan Sridharan wrote:
>> On Fri, Sep 8, 2017 at 2:45 AM, Greg Kroah-Hartman
>> <gregkh at linuxfoundation.org> wrote:
>>> 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 <Badhri at google.com>
>>>> ---
>>>>   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(-)
>>>
>>> Before you add more stuff to this driver, what is needed to get it out
>>> of staging?  That would be more useful to do now, right?
>>
>> Actually not adding more features here. There was a bug where
>> the phone wasnt charging at the highest possible power output,
>> came up with the these patches while debugging that issue.
> 
> Ok, but again, when is this going to get out of staging?
> 
I have a set of patches ready to do just that. It only moves tcpm - tcpci
is still untested as far as I know, and fusb302 has unapproved devicetree
properties.

Want me to send it out now or after -rc1 ?

Guenter