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Date: Tue, 16 Aug 2022 06:52:30 +0200 From: Greg Kroah-Hartman <gregkh@...uxfoundation.org> To: Badhri Jagan Sridharan <badhri@...gle.com> Cc: Guenter Roeck <linux@...ck-us.net>, Heikki Krogerus <heikki.krogerus@...ux.intel.com>, linux-usb@...r.kernel.org, linux-kernel@...r.kernel.org, Kyle Tso <kyletso@...gle.com>, stable@...r.kernel.org Subject: Re: [PATCH v1] usb: typec: tcpm: Return ENOTSUPP for power supply prop writes On Mon, Aug 15, 2022 at 08:33:55PM -0700, Badhri Jagan Sridharan wrote: > When the port does not support USB PD, prevent transition to PD > only states when power supply property is written. In this case, > TCPM transitions to SNK_NEGOTIATE_CAPABILITIES > which should not be the case given that the port is not pd_capable. > > [ 84.308251] state change SNK_READY -> SNK_NEGOTIATE_CAPABILITIES [rev3 NONE_AMS] > [ 84.308335] Setting usb_comm capable false > [ 84.323367] set_auto_vbus_discharge_threshold mode:3 pps_active:n vbus:5000 ret:0 > [ 84.323376] state change SNK_NEGOTIATE_CAPABILITIES -> SNK_WAIT_CAPABILITIES [rev3 NONE_AMS] > > Signed-off-by: Badhri Jagan Sridharan <badhri@...gle.com> > --- > drivers/usb/typec/tcpm/tcpm.c | 7 +++++++ > 1 file changed, 7 insertions(+) > <formletter> This is not the correct way to submit patches for inclusion in the stable kernel tree. Please read: https://www.kernel.org/doc/html/latest/process/stable-kernel-rules.html for how to do this properly. </formletter>
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