greybus: connection: remove 'struct device' from 'struct gb_connection'

We don't want this in the driver core, as nothing will be binding to it,
that's the job of a bundle.  So remove the struct device and use a kref
to handle reference counting instead.

Note, I don't think we really need a kref, but it keeps the lifetime the
same as before, and is the simplest change for now.  In the future it
might be easier to just attach all connections to the bundle and clean
them up when the bundle is removed.

Also remove the cport sysfs documentation as it's no longer relevant.

Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
Reviewed-by: Viresh Kumar <viresh.kumar@linaro.org>
Reviewed-by: Alex Elder <elder@linaro.org>
Reviewed-by: Johan Hovold <johan@hovoldconsulting.com>

1 files changed, 1 insertions, 2 deletions

diff --git a/drivers/staging/greybus/connection.h b/drivers/staging/greybus/connection.h
index 2eaf186ab60e..af425a2dc5d2 100644
--- a/drivers/staging/greybus/connection.h
+++ b/drivers/staging/greybus/connection.h
@@ -24,7 +24,7 @@ enum gb_connection_state {
 struct gb_connection {
 	struct greybus_host_device	*hd;
 	struct gb_bundle		*bundle;
-	struct device			dev;
+	struct kref			kref;
 	u16				hd_cport_id;
 	u16				intf_cport_id;
 
@@ -48,7 +48,6 @@ struct gb_connection {
 
 	void				*private;
 };
-#define to_gb_connection(d) container_of(d, struct gb_connection, dev)
 
 int svc_update_connection(struct gb_interface *intf,
 			  struct gb_connection *connection);