From: "Angus Ainslie (Purism)" <angus@akkea.ca>
To: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
linux-usb@vger.kernel.org, linux-kernel@vger.kernel.org,
"Angus Ainslie (Purism)" <angus@akkea.ca>
Subject: [PATCH] usb: typec: don't disable sink or source on initialization
Date: Thu, 6 Sep 2018 13:26:44 -0600 [thread overview]
Message-ID: <20180906192644.24587-1-angus@akkea.ca> (raw)
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@akkea.ca>
---
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
next reply other threads:[~2018-09-06 19:33 UTC|newest]
Thread overview: 25+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-09-06 19:26 Angus Ainslie (Purism) [this message]
2018-09-07 9:39 ` [PATCH] usb: typec: don't disable sink or source on initialization Sergei Shtylyov
2018-09-07 10:34 ` Heikki Krogerus
2018-09-07 12:55 ` Guenter Roeck
2018-09-09 14:08 ` Angus Ainslie
2018-09-09 14:20 ` Guenter Roeck
2018-09-09 14:36 ` Angus Ainslie
2018-09-09 14:43 ` Guenter Roeck
2018-09-09 18:05 ` [PATCH v2] usb: typec: get the vbus source and charge values from the devicetree Angus Ainslie (Purism)
2018-09-09 19:52 ` Guenter Roeck
2018-09-09 20:09 ` Angus Ainslie
2018-09-10 7:35 ` Heikki Krogerus
2018-09-10 13:11 ` Angus Ainslie
2018-09-10 13:43 ` Guenter Roeck
2018-09-10 14:32 ` Angus Ainslie
2018-09-10 13:49 ` Heikki Krogerus
2018-09-11 14:59 ` [PATCH v3] " Angus Ainslie (Purism)
2018-09-11 15:33 ` Guenter Roeck
2018-09-12 16:08 ` Angus Ainslie
2018-09-12 16:32 ` Guenter Roeck
2018-09-13 7:27 ` Peter Chen
2018-09-13 11:10 ` Angus Ainslie
2018-09-13 17:34 ` Guenter Roeck
2018-09-14 0:38 ` Jun Li
2018-09-14 0:25 ` Jun Li
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