From: Heikki Krogerus <heikki.krogerus@linux.intel.com>
To: Ulrich Huber <ulrich@huberulrich.de>
Cc: linux-usb@vger.kernel.org
Subject: [RFC PATCH 2/7] usb: typec: ucsi: Don't stop alt mode registration on busy condition
Date: Thu, 26 Aug 2021 17:31:41 +0300 [thread overview]
Message-ID: <20210826143146.25799-3-heikki.krogerus@linux.intel.com> (raw)
In-Reply-To: <20210826143146.25799-1-heikki.krogerus@linux.intel.com>
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;
--
2.32.0
next prev parent reply other threads:[~2021-08-26 14:31 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-08-26 14:31 [RFC PATCH 0/7] UCSI work Heikki Krogerus
2021-08-26 14:31 ` [RFC PATCH 1/7] usb: typec: ucsi: Always cancel the command if PPM reports BUSY condition Heikki Krogerus
2021-08-26 14:31 ` Heikki Krogerus [this message]
2021-08-26 14:31 ` [RFC PATCH 3/7] usb: typec: ucsi: Add polling mechanism for partner tasks like alt mode checking Heikki Krogerus
2021-08-26 14:31 ` [RFC PATCH 4/7] usb: typec: ucsi: acpi: Reduce the command completion timeout Heikki Krogerus
2021-08-26 14:31 ` [RFC PATCH 5/7] usb: typec: ucsi: Check the partner alt modes always if there is PD contract Heikki Krogerus
2021-08-26 14:31 ` [RFC PATCH 6/7] usb: typec: ucsi: Read the PDOs in separate work Heikki Krogerus
2021-08-26 14:31 ` [RFC PATCH 7/7] usb: typec: ucsi: Better fix for missing unplug events issue Heikki Krogerus
-- strict thread matches above, loose matches on Subject: below --
2021-06-07 13:14 [RFC PATCH 0/7] usb: typec: ucsi: Polling the alt modes and PDOs Heikki Krogerus
2021-06-07 13:14 ` [RFC PATCH 2/7] usb: typec: ucsi: Don't stop alt mode registration on busy condition Heikki Krogerus
2021-06-08 9:31 ` Sergei Shtylyov
2021-06-08 13:18 ` Heikki Krogerus
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