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usb: typec: tcpci: Enable bleed discharge when auto discharge is enabled

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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>
This commit is contained in:
Badhri Jagan Sridharan 2020-12-10 23:11:45 -08:00 committed by Greg Kroah-Hartman
parent ecf4d4310a
commit 3b6c3d0480
1 changed files with 2 additions and 0 deletions
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2
drivers/usb/typec/tcpm/tcpci.c
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@ -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.enable_auto_vbus_discharge = tcpci_enable_auto_vbus_discharge;
tcpci->tcpc.set_auto_vbus_discharge_threshold = tcpci->tcpc.set_auto_vbus_discharge_threshold =
tcpci_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) if (tcpci->data->vbus_vsafe0v)