Done. Just sent out the following patch and CCed stable@xxxxxxxxxxxxxxx as well. [PATCH v2] usb: typec: tcpm: Wait for vbus discharge to VSAFE0V before toggling Thanks, Badhri On Thu, Feb 18, 2021 at 2:42 AM Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx> wrote: > > On Thu, Feb 18, 2021 at 02:38:45AM -0800, Badhri Jagan Sridharan wrote: > > Hi Greg, > > > > This patch is a bug fix for the following patch which was introduced in 5.11. > > > > commit f321a02caebdd0c56e167610cda2fa148cd96e8b > > Author: Badhri Jagan Sridharan <badhri@xxxxxxxxxx> > > Date: Wed Oct 28 23:31:35 2020 -0700 > > > > usb: typec: tcpm: Implement enabling Auto Discharge disconnect support > > > > TCPCI spec allows TCPC hardware to autonomously discharge the vbus > > capacitance upon disconnect. The expectation is that the TCPM enables > > AutoDischargeDisconnect while entering SNK/SRC_ATTACHED states. Hardware > > then automously discharges vbus when the vbus falls below a certain > > threshold i.e. VBUS_SINK_DISCONNECT_THRESHOLD. > > > > Apart from enabling the vbus discharge circuit, AutoDischargeDisconnect > > is also used a flag to move TCPCI based TCPC implementations into > > Attached.Snk/Attached.Src state as mentioned in > > Figure 4-15. TCPC State Diagram before a Connection of the > > USB Type-C Port Controller Interface Specification. > > In such TCPC implementations, setting AutoDischargeDisconnect would > > prevent TCPC into entering "Connection_Invalid" state as well. > > > > Signed-off-by: Badhri Jagan Sridharan <badhri@xxxxxxxxxx> > > Reviewed-by: Heikki Krogerus <heikki.krogerus@xxxxxxxxxxxxxxx> > > Link: https://lore.kernel.org/r/20201029063138.1429760-8-badhri@xxxxxxxxxx > > Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx> > > Great, then can you resend the patch and add a proper Fixes: tag, along > with a cc: stable as well? > > thanks, > > greg k-h
