Commit 3b6c3d04 authored Dec 10, 2020 by Badhri Jagan Sridharan Committed by Greg Kroah-Hartman Dec 11, 2020

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 <heikki.krogerus@linux.intel.com>
Signed-off-by: Badhri Jagan Sridharan <badhri@google.com>
Link: https://lore.kernel.org/r/20201211071145.2199997-1-badhri@google.com

Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

parent ecf4d431

drivers/usb/typec/tcpm/tcpci.c

+2 −0

Original line number	Diff line number	Diff line
		@@ -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)