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From: Heikki Krogerus <heikki.krogerus@linux.intel.com>
To: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: Alan Stern <stern@rowland.harvard.edu>,
	Guenter Roeck <linux@roeck-us.net>,
	linux-usb@vger.kernel.org, linux-kernel@vger.kernel.org
Subject: [PATCH v5 4/6] usb: Link the ports to the connectors they are attached to
Date: Thu,  1 Apr 2021 13:58:45 +0300	[thread overview]
Message-ID: <20210401105847.13026-5-heikki.krogerus@linux.intel.com> (raw)
In-Reply-To: <20210401105847.13026-1-heikki.krogerus@linux.intel.com>

Creating link to the USB Type-C connector for every new port
that is added when possible.

Signed-off-by: Heikki Krogerus <heikki.krogerus@linux.intel.com>
---
 Documentation/ABI/testing/sysfs-bus-usb | 9 +++++++++
 drivers/usb/core/port.c                 | 3 +++
 2 files changed, 12 insertions(+)

diff --git a/Documentation/ABI/testing/sysfs-bus-usb b/Documentation/ABI/testing/sysfs-bus-usb
index bf2c1968525f0..8b4303a0ff51d 100644
--- a/Documentation/ABI/testing/sysfs-bus-usb
+++ b/Documentation/ABI/testing/sysfs-bus-usb
@@ -255,6 +255,15 @@ Description:
 		is permitted, "u2" if only u2 is permitted, "u1_u2" if both u1 and
 		u2 are permitted.
 
+What:		/sys/bus/usb/devices/.../(hub interface)/portX/connector
+Date:		April 2021
+Contact:	Heikki Krogerus <heikki.krogerus@linux.intel.com>
+Description:
+		Link to the USB Type-C connector when available. This link is
+		only created when USB Type-C Connector Class is enabled, and
+		only if the system firmware is capable of describing the
+		connection between a port and its connector.
+
 What:		/sys/bus/usb/devices/.../power/usb2_lpm_l1_timeout
 Date:		May 2013
 Contact:	Mathias Nyman <mathias.nyman@linux.intel.com>
diff --git a/drivers/usb/core/port.c b/drivers/usb/core/port.c
index dfcca9c876c73..3c382a4b648ec 100644
--- a/drivers/usb/core/port.c
+++ b/drivers/usb/core/port.c
@@ -9,6 +9,7 @@
 
 #include <linux/slab.h>
 #include <linux/pm_qos.h>
+#include <linux/usb/typec.h>
 
 #include "hub.h"
 
@@ -576,6 +577,7 @@ int usb_hub_create_port_device(struct usb_hub *hub, int port1)
 	}
 
 	find_and_link_peer(hub, port1);
+	typec_link_port(&port_dev->dev);
 
 	/*
 	 * Enable runtime pm and hold a refernce that hub_configure()
@@ -619,5 +621,6 @@ void usb_hub_remove_port_device(struct usb_hub *hub, int port1)
 	peer = port_dev->peer;
 	if (peer)
 		unlink_peers(port_dev, peer);
+	typec_unlink_port(&port_dev->dev);
 	device_unregister(&port_dev->dev);
 }
-- 
2.30.2


  parent reply	other threads:[~2021-04-01 10:59 UTC|newest]

Thread overview: 9+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-04-01 10:58 [PATCH v5 0/6] usb: Linking ports to their Type-C connectors Heikki Krogerus
2021-04-01 10:58 ` [PATCH v5 1/6] usb: typec: Organize the private headers properly Heikki Krogerus
2021-04-01 10:58 ` [PATCH v5 2/6] usb: typec: Declare the typec_class static Heikki Krogerus
2021-04-01 10:58 ` [PATCH v5 3/6] usb: typec: Port mapping utility Heikki Krogerus
2021-04-05  7:09   ` Greg Kroah-Hartman
2021-04-07  6:49     ` Heikki Krogerus
2021-04-01 10:58 ` Heikki Krogerus [this message]
2021-04-01 10:58 ` [PATCH v5 5/6] usb: Iterator for ports Heikki Krogerus
2021-04-01 10:58 ` [PATCH v5 6/6] usb: typec: Link all ports during connector registration Heikki Krogerus

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