greybus: create host-device compilation unit

Move everything host-device related to hd.c and hd.h.

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

1 files changed, 0 insertions, 100 deletions

diff --git a/drivers/staging/greybus/core.c b/drivers/staging/greybus/core.c
index 726bf6480af3..4396f90e65d6 100644
--- a/drivers/staging/greybus/core.c
+++ b/drivers/staging/greybus/core.c
@@ -146,106 +146,6 @@ void greybus_deregister_driver(struct greybus_driver *driver)
 }
 EXPORT_SYMBOL_GPL(greybus_deregister_driver);
 
-
-static DEFINE_MUTEX(hd_mutex);
-
-static void free_hd(struct kref *kref)
-{
-	struct greybus_host_device *hd;
-
-	hd = container_of(kref, struct greybus_host_device, kref);
-
-	ida_destroy(&hd->cport_id_map);
-	kfree(hd);
-	mutex_unlock(&hd_mutex);
-}
-
-struct greybus_host_device *greybus_create_hd(struct greybus_host_driver *driver,
-					      struct device *parent,
-					      size_t buffer_size_max,
-					      size_t num_cports)
-{
-	struct greybus_host_device *hd;
-
-	/*
-	 * Validate that the driver implements all of the callbacks
-	 * so that we don't have to every time we make them.
-	 */
-	if ((!driver->message_send) || (!driver->message_cancel)) {
-		pr_err("Must implement all greybus_host_driver callbacks!\n");
-		return ERR_PTR(-EINVAL);
-	}
-
-	if (buffer_size_max < GB_OPERATION_MESSAGE_SIZE_MIN) {
-		dev_err(parent, "greybus host-device buffers too small\n");
-		return ERR_PTR(-EINVAL);
-	}
-
-	if (num_cports == 0 || num_cports > CPORT_ID_MAX) {
-		dev_err(parent, "Invalid number of CPorts: %zu\n", num_cports);
-		return ERR_PTR(-EINVAL);
-	}
-
-	/*
-	 * Make sure to never allocate messages larger than what the Greybus
-	 * protocol supports.
-	 */
-	if (buffer_size_max > GB_OPERATION_MESSAGE_SIZE_MAX) {
-		dev_warn(parent, "limiting buffer size to %u\n",
-			 GB_OPERATION_MESSAGE_SIZE_MAX);
-		buffer_size_max = GB_OPERATION_MESSAGE_SIZE_MAX;
-	}
-
-	hd = kzalloc(sizeof(*hd) + driver->hd_priv_size, GFP_KERNEL);
-	if (!hd)
-		return ERR_PTR(-ENOMEM);
-
-	kref_init(&hd->kref);
-	hd->parent = parent;
-	hd->driver = driver;
-	INIT_LIST_HEAD(&hd->interfaces);
-	INIT_LIST_HEAD(&hd->connections);
-	ida_init(&hd->cport_id_map);
-	hd->buffer_size_max = buffer_size_max;
-	hd->num_cports = num_cports;
-
-	/*
-	 * 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);
-
-void greybus_remove_hd(struct greybus_host_device *hd)
-{
-	/*
-	 * Tear down all interfaces, modules, and the endo that is associated
-	 * with this host controller before freeing the memory associated with
-	 * the host controller.
-	 */
-	gb_interfaces_remove(hd);
-	gb_endo_remove(hd->endo);
-
-	/* Is the SVC still using the partially uninitialized connection ? */
-	if (hd->initial_svc_connection)
-		gb_connection_destroy(hd->initial_svc_connection);
-
-	kref_put_mutex(&hd->kref, free_hd, &hd_mutex);
-}
-EXPORT_SYMBOL_GPL(greybus_remove_hd);
-
 static int __init gb_init(void)
 {
 	int retval;