[PATCH] usb: typec: don't disable sink or source on initialization

From: Angus Ainslie (Purism)
Date: Thu Sep 06 2018 - 15:33:44 EST


If the board is being powered by USB disabling the source and sink
can remove power from the board. Default to source and sink enabled.

Signed-off-by: Angus Ainslie (Purism) <angus@xxxxxxxx>
---
drivers/usb/typec/tcpm.c | 8 +++++---
1 file changed, 5 insertions(+), 3 deletions(-)

diff --git a/drivers/usb/typec/tcpm.c b/drivers/usb/typec/tcpm.c
index ca7bedb46f7f..a1b819cf31da 100644
--- a/drivers/usb/typec/tcpm.c
+++ b/drivers/usb/typec/tcpm.c
@@ -2462,9 +2462,11 @@ static int tcpm_init_vbus(struct tcpm_port *port)
{
int ret;

- ret = port->tcpc->set_vbus(port->tcpc, false, false);
- port->vbus_source = false;
- port->vbus_charge = false;
+ /* default to source and sink enabled in case USB is our only power
+ * source */
+ ret = port->tcpc->set_vbus(port->tcpc, true, true);
+ port->vbus_source = true;
+ port->vbus_charge = true;
return ret;
}

--
2.17.1