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greybus: connection: clean up svc-connection creation 

Move SVC-connection creation to its own helper.

Note that the connection_create host-driver callback is really
unrelated to the SVC connection, and will be removed by a later patch.
It is is included for now as the connection_destroy callback is
currently made from the SVC-connection-destroy helper.

Signed-off-by: Johan Hovold <johan@hovoldconsulting.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
hifive-unleashed-5.1
Johan Hovold 2015-09-17 13:17:21 +02:00 committed by Greg Kroah-Hartman
parent ced6007a6d
commit a95c258c6f
1 changed files with 34 additions and 19 deletions
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53
drivers/staging/greybus/connection.c
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@ -321,6 +321,37 @@ static void gb_connection_cancel_operations(struct gb_connection *connection,
spin_unlock_irq(&connection->lock);
}
/*
* Request the SVC to create a connection from AP's cport to interface's
* cport.
*/
static int
gb_connection_svc_connection_create(struct gb_connection *connection)
{
struct greybus_host_device *hd = connection->hd;
struct gb_protocol *protocol = connection->protocol;
int ret;
if (protocol->flags & GB_PROTOCOL_SKIP_SVC_CONNECTION)
return 0;
ret = gb_svc_connection_create(hd->svc,
hd->endo->ap_intf_id,
connection->hd_cport_id,
connection->bundle->intf->interface_id,
connection->intf_cport_id);
if (ret) {
dev_err(&connection->dev,
"failed to create svc connection: %d\n", ret);
return ret;
}
if (hd->driver->connection_create)
hd->driver->connection_create(connection);
return 0;
}
static void
gb_connection_svc_connection_destroy(struct gb_connection *connection)
{
@ -358,29 +389,13 @@ static void gb_connection_disconnected(struct gb_connection *connection)
static int gb_connection_init(struct gb_connection *connection)
{
int cport_id = connection->intf_cport_id;
struct greybus_host_device *hd = connection->hd;
struct gb_protocol *protocol = connection->protocol;
int ret;
/*
* Request the SVC to create a connection from AP's cport to interface's
* cport.
*/
if (!(protocol->flags & GB_PROTOCOL_SKIP_SVC_CONNECTION)) {
ret = gb_svc_connection_create(hd->svc,
hd->endo->ap_intf_id, connection->hd_cport_id,
connection->bundle->intf->interface_id,
cport_id);
if (ret) {
dev_err(&connection->dev,
"%s: Failed to create svc connection (%d)\n",
__func__, ret);
return ret;
}
ret = gb_connection_svc_connection_create(connection);
if (ret)
return ret;
if (hd->driver->connection_create)
hd->driver->connection_create(connection);
}
/* Inform Interface about active CPorts */
if (!(protocol->flags & GB_PROTOCOL_SKIP_CONTROL_CONNECTED)) {
struct gb_control *control = connection->bundle->intf->control;