linux-kernel - Re: [PATCH v1] usb: typec: tcpm: Disregard vbus off while in PR_SWAP_SNK_SRC_SOURCE

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Message-ID: <X7+iY9RSpD3wSHjr@kroah.com>
Date:   Thu, 26 Nov 2020 13:41:07 +0100
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     Heikki Krogerus <heikki.krogerus@...ux.intel.com>
Cc:     Badhri Jagan Sridharan <badhri@...gle.com>,
        Guenter Roeck <linux@...ck-us.net>, linux-usb@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH v1] usb: typec: tcpm: Disregard vbus off while in
 PR_SWAP_SNK_SRC_SOURCE_ON

On Thu, Nov 26, 2020 at 02:01:20PM +0200, Heikki Krogerus wrote:
> On Tue, Nov 24, 2020 at 06:07:03PM -0800, Badhri Jagan Sridharan wrote:
> > During PR_SWAP sequence, when TCPM is waiting in PR_SWAP_SNK_SRC_SOURCE_ON
> > for the vbus source to ramp up, TCPM would prematurely exit
> > PR_SWAP_SNK_SRC_SOURCE_ON and transition to SNK_UNATTACHED state when a
> > vbus off notification is received. This should not be the case as vbus
> > can still be off while in PR_SWAP_SNK_SRC_SOURCE_ON and the vbus source
> > has PD_T_NEWSRC to ramp up.
> > 
> > Signed-off-by: Badhri Jagan Sridharan <badhri@...gle.com>
> 
> FWIW:
> 
> Acked-by: Heikki Krogerus <heikki.krogerus@...ux.intel.com>

Thanks, i've added this, and your other ack, to the commits in my tree.

greg k-h