Staging: remove wusbcore and UWB from the kernel tree.

[linux-2.6-microblaze.git] / drivers / staging / uwb / pal.c

diff --git a/drivers/staging/uwb/pal.c b/drivers/staging/uwb/pal.c
deleted file mode 100644 (file)
index a541e64..0000000
--- a/drivers/staging/uwb/pal.c
+++ /dev/null
@@ -1,128 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0-only
-/*
- * UWB PAL support.
- *
- * Copyright (C) 2008 Cambridge Silicon Radio Ltd.
- */
-#include <linux/kernel.h>
-#include <linux/debugfs.h>
-#include <linux/export.h>
-
-#include "uwb.h"
-#include "uwb-internal.h"
-
-/**
- * uwb_pal_init - initialize a UWB PAL
- * @pal: the PAL to initialize
- */
-void uwb_pal_init(struct uwb_pal *pal)
-{
-       INIT_LIST_HEAD(&pal->node);
-}
-EXPORT_SYMBOL_GPL(uwb_pal_init);
-
-/**
- * uwb_pal_register - register a UWB PAL
- * @pal: the PAL
- *
- * The PAL must be initialized with uwb_pal_init().
- */
-int uwb_pal_register(struct uwb_pal *pal)
-{
-       struct uwb_rc *rc = pal->rc;
-       int ret;
-
-       if (pal->device) {
-               /* create a link to the uwb_rc in the PAL device's directory. */
-               ret = sysfs_create_link(&pal->device->kobj,
-                                       &rc->uwb_dev.dev.kobj, "uwb_rc");
-               if (ret < 0)
-                       return ret;
-               /* create a link to the PAL in the UWB device's directory. */
-               ret = sysfs_create_link(&rc->uwb_dev.dev.kobj,
-                                       &pal->device->kobj, pal->name);
-               if (ret < 0) {
-                       sysfs_remove_link(&pal->device->kobj, "uwb_rc");
-                       return ret;
-               }
-       }
-
-       pal->debugfs_dir = uwb_dbg_create_pal_dir(pal);
-
-       mutex_lock(&rc->uwb_dev.mutex);
-       list_add(&pal->node, &rc->pals);
-       mutex_unlock(&rc->uwb_dev.mutex);
-
-       return 0;
-}
-EXPORT_SYMBOL_GPL(uwb_pal_register);
-
-static int find_rc(struct device *dev, const void *data)
-{
-       const struct uwb_rc *target_rc = data;
-       struct uwb_rc *rc = dev_get_drvdata(dev);
-
-       if (rc == NULL) {
-               WARN_ON(1);
-               return 0;
-       }
-       if (rc == target_rc) {
-               if (rc->ready == 0)
-                       return 0;
-               else
-                       return 1;
-       }
-       return 0;
-}
-
-/**
- * Given a radio controller descriptor see if it is registered.
- *
- * @returns false if the rc does not exist or is quiescing; true otherwise.
- */
-static bool uwb_rc_class_device_exists(struct uwb_rc *target_rc)
-{
-       struct device *dev;
-
-       dev = class_find_device(&uwb_rc_class, NULL, target_rc, find_rc);
-
-       put_device(dev);
-
-       return (dev != NULL);
-}
-
-/**
- * uwb_pal_unregister - unregister a UWB PAL
- * @pal: the PAL
- */
-void uwb_pal_unregister(struct uwb_pal *pal)
-{
-       struct uwb_rc *rc = pal->rc;
-
-       uwb_radio_stop(pal);
-
-       mutex_lock(&rc->uwb_dev.mutex);
-       list_del(&pal->node);
-       mutex_unlock(&rc->uwb_dev.mutex);
-
-       debugfs_remove(pal->debugfs_dir);
-
-       if (pal->device) {
-               /* remove link to the PAL in the UWB device's directory. */
-               if (uwb_rc_class_device_exists(rc))
-                       sysfs_remove_link(&rc->uwb_dev.dev.kobj, pal->name);
-
-               /* remove link to uwb_rc in the PAL device's directory. */
-               sysfs_remove_link(&pal->device->kobj, "uwb_rc");
-       }
-}
-EXPORT_SYMBOL_GPL(uwb_pal_unregister);
-
-/**
- * uwb_rc_pal_init - initialize the PAL related parts of a radio controller
- * @rc: the radio controller
- */
-void uwb_rc_pal_init(struct uwb_rc *rc)
-{
-       INIT_LIST_HEAD(&rc->pals);
-}