[PATCH 2/7] usb: typec: ucsi: Don't stop alt mode registration on busy condition
From: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Date: 2021-09-20 14:24:21
Subsystem:
the rest, usb subsystem, usb typec class · Maintainers:
Linus Torvalds, Greg Kroah-Hartman, Heikki Krogerus
If the PPM says it's busy, we can now simply try again. Signed-off-by: Heikki Krogerus <heikki.krogerus@linux.intel.com> --- drivers/usb/typec/ucsi/ucsi.c | 2 ++ 1 file changed, 2 insertions(+)
diff --git a/drivers/usb/typec/ucsi/ucsi.c b/drivers/usb/typec/ucsi/ucsi.c
index ffb5be51daf85..a35efd8174bd4 100644
--- a/drivers/usb/typec/ucsi/ucsi.c
+++ b/drivers/usb/typec/ucsi/ucsi.c@@ -437,6 +437,8 @@ static int ucsi_register_altmodes(struct ucsi_connector *con, u8 recipient) command |= UCSI_GET_ALTMODE_CONNECTOR_NUMBER(con->num); command |= UCSI_GET_ALTMODE_OFFSET(i); len = ucsi_send_command(con->ucsi, command, alt, sizeof(alt)); + if (len == -EBUSY) + continue; if (len <= 0) return len;
--
2.33.0