1 files changed, 0 insertions, 242 deletions
diff --git a/drivers/media/v4l2-core/v4l2-clk.c b/drivers/media/v4l2-core/v4l2-clk.c
deleted file mode 100644
index b67de8642b5a..000000000000
--- a/drivers/media/v4l2-core/v4l2-clk.c
+++ /dev/null
@@ -1,242 +0,0 @@
-/*
- * V4L2 clock service
- *
- * Copyright (C) 2012-2013, Guennadi Liakhovetski <g.liakhovetski@gmx.de>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- */
-
-#include <linux/atomic.h>
-#include <linux/device.h>
-#include <linux/errno.h>
-#include <linux/list.h>
-#include <linux/module.h>
-#include <linux/mutex.h>
-#include <linux/slab.h>
-#include <linux/string.h>
-
-#include <media/v4l2-clk.h>
-#include <media/v4l2-subdev.h>
-
-static DEFINE_MUTEX(clk_lock);
-static LIST_HEAD(clk_list);
-
-static struct v4l2_clk *v4l2_clk_find(const char *dev_id, const char *id)
-{
-	struct v4l2_clk *clk;
-
-	list_for_each_entry(clk, &clk_list, list) {
-		if (strcmp(dev_id, clk->dev_id))
-			continue;
-
-		if (!id || !clk->id || !strcmp(clk->id, id))
-			return clk;
-	}
-
-	return ERR_PTR(-ENODEV);
-}
-
-struct v4l2_clk *v4l2_clk_get(struct device *dev, const char *id)
-{
-	struct v4l2_clk *clk;
-
-	mutex_lock(&clk_lock);
-	clk = v4l2_clk_find(dev_name(dev), id);
-
-	if (!IS_ERR(clk))
-		atomic_inc(&clk->use_count);
-	mutex_unlock(&clk_lock);
-
-	return clk;
-}
-EXPORT_SYMBOL(v4l2_clk_get);
-
-void v4l2_clk_put(struct v4l2_clk *clk)
-{
-	struct v4l2_clk *tmp;
-
-	if (IS_ERR(clk))
-		return;
-
-	mutex_lock(&clk_lock);
-
-	list_for_each_entry(tmp, &clk_list, list)
-		if (tmp == clk)
-			atomic_dec(&clk->use_count);
-
-	mutex_unlock(&clk_lock);
-}
-EXPORT_SYMBOL(v4l2_clk_put);
-
-static int v4l2_clk_lock_driver(struct v4l2_clk *clk)
-{
-	struct v4l2_clk *tmp;
-	int ret = -ENODEV;
-
-	mutex_lock(&clk_lock);
-
-	list_for_each_entry(tmp, &clk_list, list)
-		if (tmp == clk) {
-			ret = !try_module_get(clk->ops->owner);
-			if (ret)
-				ret = -EFAULT;
-			break;
-		}
-
-	mutex_unlock(&clk_lock);
-
-	return ret;
-}
-
-static void v4l2_clk_unlock_driver(struct v4l2_clk *clk)
-{
-	module_put(clk->ops->owner);
-}
-
-int v4l2_clk_enable(struct v4l2_clk *clk)
-{
-	int ret = v4l2_clk_lock_driver(clk);
-
-	if (ret < 0)
-		return ret;
-
-	mutex_lock(&clk->lock);
-
-	if (++clk->enable == 1 && clk->ops->enable) {
-		ret = clk->ops->enable(clk);
-		if (ret < 0)
-			clk->enable--;
-	}
-
-	mutex_unlock(&clk->lock);
-
-	return ret;
-}
-EXPORT_SYMBOL(v4l2_clk_enable);
-
-/*
- * You might Oops if you try to disabled a disabled clock, because then the
- * driver isn't locked and could have been unloaded by now, so, don't do that
- */
-void v4l2_clk_disable(struct v4l2_clk *clk)
-{
-	int enable;
-
-	mutex_lock(&clk->lock);
-
-	enable = --clk->enable;
-	if (WARN(enable < 0, "Unbalanced %s() on %s:%s!\n", __func__,
-		 clk->dev_id, clk->id))
-		clk->enable++;
-	else if (!enable && clk->ops->disable)
-		clk->ops->disable(clk);
-
-	mutex_unlock(&clk->lock);
-
-	v4l2_clk_unlock_driver(clk);
-}
-EXPORT_SYMBOL(v4l2_clk_disable);
-
-unsigned long v4l2_clk_get_rate(struct v4l2_clk *clk)
-{
-	int ret = v4l2_clk_lock_driver(clk);
-
-	if (ret < 0)
-		return ret;
-
-	mutex_lock(&clk->lock);
-	if (!clk->ops->get_rate)
-		ret = -ENOSYS;
-	else
-		ret = clk->ops->get_rate(clk);
-	mutex_unlock(&clk->lock);
-
-	v4l2_clk_unlock_driver(clk);
-
-	return ret;
-}
-EXPORT_SYMBOL(v4l2_clk_get_rate);
-
-int v4l2_clk_set_rate(struct v4l2_clk *clk, unsigned long rate)
-{
-	int ret = v4l2_clk_lock_driver(clk);
-
-	if (ret < 0)
-		return ret;
-
-	mutex_lock(&clk->lock);
-	if (!clk->ops->set_rate)
-		ret = -ENOSYS;
-	else
-		ret = clk->ops->set_rate(clk, rate);
-	mutex_unlock(&clk->lock);
-
-	v4l2_clk_unlock_driver(clk);
-
-	return ret;
-}
-EXPORT_SYMBOL(v4l2_clk_set_rate);
-
-struct v4l2_clk *v4l2_clk_register(const struct v4l2_clk_ops *ops,
-				   const char *dev_id,
-				   const char *id, void *priv)
-{
-	struct v4l2_clk *clk;
-	int ret;
-
-	if (!ops || !dev_id)
-		return ERR_PTR(-EINVAL);
-
-	clk = kzalloc(sizeof(struct v4l2_clk), GFP_KERNEL);
-	if (!clk)
-		return ERR_PTR(-ENOMEM);
-
-	clk->id = kstrdup(id, GFP_KERNEL);
-	clk->dev_id = kstrdup(dev_id, GFP_KERNEL);
-	if ((id && !clk->id) || !clk->dev_id) {
-		ret = -ENOMEM;
-		goto ealloc;
-	}
-	clk->ops = ops;
-	clk->priv = priv;
-	atomic_set(&clk->use_count, 0);
-	mutex_init(&clk->lock);
-
-	mutex_lock(&clk_lock);
-	if (!IS_ERR(v4l2_clk_find(dev_id, id))) {
-		mutex_unlock(&clk_lock);
-		ret = -EEXIST;
-		goto eexist;
-	}
-	list_add_tail(&clk->list, &clk_list);
-	mutex_unlock(&clk_lock);
-
-	return clk;
-
-eexist:
-ealloc:
-	kfree(clk->id);
-	kfree(clk->dev_id);
-	kfree(clk);
-	return ERR_PTR(ret);
-}
-EXPORT_SYMBOL(v4l2_clk_register);
-
-void v4l2_clk_unregister(struct v4l2_clk *clk)
-{
-	if (WARN(atomic_read(&clk->use_count),
-		 "%s(): Refusing to unregister ref-counted %s:%s clock!\n",
-		 __func__, clk->dev_id, clk->id))
-		return;
-
-	mutex_lock(&clk_lock);
-	list_del(&clk->list);
-	mutex_unlock(&clk_lock);
-
-	kfree(clk->id);
-	kfree(clk->dev_id);
-	kfree(clk);
-}
-EXPORT_SYMBOL(v4l2_clk_unregister);