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usb: typec: ucsi: Don't stop alt mode registration on busy condition

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If the PPM says it's busy, we can now simply try again.

Signed-off-by: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Link: https://lore.kernel.org/r/20210920142419.54493-3-heikki.krogerus@linux.intel.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Heikki Krogerus
2021-09-20 17:24:14 +03:00
committed by Greg Kroah-Hartman
parent 094902bc6a
commit 47eb8de3bb
1 changed files with 2 additions and 0 deletions
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2
drivers/usb/typec/ucsi/ucsi.c
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@@ -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;