linux-kernel - [PATCH] usb: typec: Send uevent for num

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Message-Id: <20210107034904.4112029-1-pmalani@chromium.org>
Date:   Wed,  6 Jan 2021 19:49:04 -0800
From:   Prashant Malani <pmalani@...omium.org>
To:     linux-usb@...r.kernel.org, gregkh@...uxfoundation.org
Cc:     Prashant Malani <pmalani@...omium.org>,
        Heikki Krogerus <heikki.krogerus@...ux.intel.com>,
        Benson Leung <bleung@...omium.org>,
        linux-kernel@...r.kernel.org (open list)
Subject: [PATCH] usb: typec: Send uevent for num_altmodes update

Generate a change uevent when the "number_of_alternate_modes" sysfs file
for partners and plugs is updated by a port driver.

Cc: Heikki Krogerus <heikki.krogerus@...ux.intel.com>
Cc: Benson Leung <bleung@...omium.org>
Signed-off-by: Prashant Malani <pmalani@...omium.org>
---
 drivers/usb/typec/class.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/usb/typec/class.c b/drivers/usb/typec/class.c
index ebfd3113a9a8..8f77669f9cf4 100644
--- a/drivers/usb/typec/class.c
+++ b/drivers/usb/typec/class.c
@@ -766,6 +766,7 @@ int typec_partner_set_num_altmodes(struct typec_partner *partner, int num_altmod
 		return ret;
 
 	sysfs_notify(&partner->dev.kobj, NULL, "number_of_alternate_modes");
+	kobject_uevent(&partner->dev.kobj, KOBJ_CHANGE);
 
 	return 0;
 }
@@ -923,6 +924,7 @@ int typec_plug_set_num_altmodes(struct typec_plug *plug, int num_altmodes)
 		return ret;
 
 	sysfs_notify(&plug->dev.kobj, NULL, "number_of_alternate_modes");
+	kobject_uevent(&plug->dev.kobj, KOBJ_CHANGE);
 
 	return 0;
 }
-- 
2.29.2.729.g45daf8777d-goog