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greybus: initialize svc connection while creating hd

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Its really part of initializing the host device and is required for
every 'hd' that is created. Lets move the call to do basic
initialization of svc connection to greybus_create_hd().

Also add a comment to specify why we need to do it that early.

Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
This commit is contained in:
Viresh Kumar 2015-07-28 07:28:42 +05:30 committed by Greg Kroah-Hartman
parent fe166c6a2b
commit 9612f2bcd4
4 changed files with 15 additions and 13 deletions
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15
drivers/staging/greybus/core.c
View file

@ -208,6 +208,21 @@ struct greybus_host_device *greybus_create_hd(struct greybus_host_driver *driver
ida_init(&hd->cport_id_map);
hd->buffer_size_max = buffer_size_max;
/*
* Initialize AP's SVC protocol connection:
*
* This is required as part of early initialization of the host device
* as we need this connection in order to start any kind of message
* exchange between the AP and the SVC. SVC will start with a
* 'get-version' request followed by a 'svc-hello' message and at that
* time we will create a fully initialized svc-connection, as we need
* endo-id and AP's interface id for that.
*/
if (!gb_ap_svc_connection_create(hd)) {
kref_put_mutex(&hd->kref, free_hd, &hd_mutex);
return ERR_PTR(-ENOMEM);
}
return hd;
}
EXPORT_SYMBOL_GPL(greybus_create_hd);

6
drivers/staging/greybus/es1.c
View file

@ -563,12 +563,6 @@ static int ap_probe(struct usb_interface *interface,
return PTR_ERR(hd);
}
/* Initialize AP's greybus interface */
if (!gb_ap_svc_connection_create(hd)) {
retval = -EINVAL;
goto error;
}
es1 = hd_to_es1(hd);
es1->hd = hd;
es1->usb_intf = interface;

6
drivers/staging/greybus/es2.c
View file

@ -663,12 +663,6 @@ static int ap_probe(struct usb_interface *interface,
return PTR_ERR(hd);
}
/* Initialize AP's greybus interface */
if (!gb_ap_svc_connection_create(hd)) {
retval = -EINVAL;
goto error;
}
es1 = hd_to_es1(hd);
es1->hd = hd;
es1->usb_intf = interface;

1
drivers/staging/greybus/svc.c
View file

@ -40,7 +40,6 @@ gb_ap_svc_connection_create(struct greybus_host_device *hd)
return connection;
}
EXPORT_SYMBOL_GPL(gb_ap_svc_connection_create);
/*
* We know endo-type and AP's interface id now, lets create a proper svc