From 3b6c3d04808965167ff19d028789bc92a4b12c8c Mon Sep 17 00:00:00 2001 From: Badhri Jagan Sridharan Date: Thu, 10 Dec 2020 23:11:45 -0800 Subject: [PATCH] usb: typec: tcpci: Enable bleed discharge when auto discharge is enabled Auto discharge circuits kick in only when vbus decays and reaches VBUS_SINK_DISCONNECT_THRESHOLD threshold. Enable bleed discharge to discharge vbus to VBUS_SINK_DISCONNECT_THRESHOLD upon disconnect. Reviewed-by: Heikki Krogerus Signed-off-by: Badhri Jagan Sridharan Link: https://lore.kernel.org/r/20201211071145.2199997-1-badhri@google.com Signed-off-by: Greg Kroah-Hartman --- drivers/usb/typec/tcpm/tcpci.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/drivers/usb/typec/tcpm/tcpci.c b/drivers/usb/typec/tcpm/tcpci.c index af55243..f676aba 100644 --- a/drivers/usb/typec/tcpm/tcpci.c +++ b/drivers/usb/typec/tcpm/tcpci.c @@ -725,6 +725,8 @@ struct tcpci *tcpci_register_port(struct device *dev, struct tcpci_data *data) tcpci->tcpc.enable_auto_vbus_discharge = tcpci_enable_auto_vbus_discharge; tcpci->tcpc.set_auto_vbus_discharge_threshold = tcpci_set_auto_vbus_discharge_threshold; + regmap_update_bits(tcpci->regmap, TCPC_POWER_CTRL, TCPC_POWER_CTRL_BLEED_DISCHARGE, + TCPC_POWER_CTRL_BLEED_DISCHARGE); } if (tcpci->data->vbus_vsafe0v) -- 2.7.4