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Date: Sun, 10 Sep 2017 15:55:16 +0200 From: Greg Kroah-Hartman <gregkh@...uxfoundation.org> To: Guenter Roeck <linux@...ck-us.net> Cc: Badhri Jagan Sridharan <badhri@...gle.com>, devel@...verdev.osuosl.org, LKML <linux-kernel@...r.kernel.org> Subject: Re: [PATCH 1/2] staging: typec: tcpm: Validate source and sink caps On Sat, Sep 09, 2017 at 09:54:42AM -0700, Guenter Roeck wrote: > 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@...uxfoundation.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@...gle.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 ? Now is good, I have been queueing up staging patches in my staging-testing tree, so as to not get hit with a ton of work to do once -rc1 comes out. thanks, greg k-h
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