[media] V4L: remove clock name from v4l2_clk API
All uses of the v4l2_clk API so far only register one clock with a fixed
name. This allows us to get rid of it, which also will make CCF and DT
integration easier.
Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de>
Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Tested-by: Josh Wu <josh.wu@atmel.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
diff --git a/drivers/media/v4l2-core/v4l2-clk.c b/drivers/media/v4l2-core/v4l2-clk.c
index e18cc04..3ff0b00 100644
--- a/drivers/media/v4l2-core/v4l2-clk.c
+++ b/drivers/media/v4l2-core/v4l2-clk.c
@@ -23,17 +23,13 @@
static DEFINE_MUTEX(clk_lock);
static LIST_HEAD(clk_list);
-static struct v4l2_clk *v4l2_clk_find(const char *dev_id, const char *id)
+static struct v4l2_clk *v4l2_clk_find(const char *dev_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))
+ list_for_each_entry(clk, &clk_list, list)
+ if (!strcmp(dev_id, clk->dev_id))
return clk;
- }
return ERR_PTR(-ENODEV);
}
@@ -43,7 +39,7 @@
struct v4l2_clk *clk;
mutex_lock(&clk_lock);
- clk = v4l2_clk_find(dev_name(dev), id);
+ clk = v4l2_clk_find(dev_name(dev));
if (!IS_ERR(clk))
atomic_inc(&clk->use_count);
@@ -127,8 +123,8 @@
mutex_lock(&clk->lock);
enable = --clk->enable;
- if (WARN(enable < 0, "Unbalanced %s() on %s:%s!\n", __func__,
- clk->dev_id, clk->id))
+ if (WARN(enable < 0, "Unbalanced %s() on %s!\n", __func__,
+ clk->dev_id))
clk->enable++;
else if (!enable && clk->ops->disable)
clk->ops->disable(clk);
@@ -181,7 +177,7 @@
struct v4l2_clk *v4l2_clk_register(const struct v4l2_clk_ops *ops,
const char *dev_id,
- const char *id, void *priv)
+ void *priv)
{
struct v4l2_clk *clk;
int ret;
@@ -193,9 +189,8 @@
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) {
+ if (!clk->dev_id) {
ret = -ENOMEM;
goto ealloc;
}
@@ -205,7 +200,7 @@
mutex_init(&clk->lock);
mutex_lock(&clk_lock);
- if (!IS_ERR(v4l2_clk_find(dev_id, id))) {
+ if (!IS_ERR(v4l2_clk_find(dev_id))) {
mutex_unlock(&clk_lock);
ret = -EEXIST;
goto eexist;
@@ -217,7 +212,6 @@
eexist:
ealloc:
- kfree(clk->id);
kfree(clk->dev_id);
kfree(clk);
return ERR_PTR(ret);
@@ -227,15 +221,14 @@
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))
+ "%s(): Refusing to unregister ref-counted %s clock!\n",
+ __func__, clk->dev_id))
return;
mutex_lock(&clk_lock);
list_del(&clk->list);
mutex_unlock(&clk_lock);
- kfree(clk->id);
kfree(clk->dev_id);
kfree(clk);
}
@@ -253,7 +246,7 @@
}
struct v4l2_clk *__v4l2_clk_register_fixed(const char *dev_id,
- const char *id, unsigned long rate, struct module *owner)
+ unsigned long rate, struct module *owner)
{
struct v4l2_clk *clk;
struct v4l2_clk_fixed *priv = kzalloc(sizeof(*priv), GFP_KERNEL);
@@ -265,7 +258,7 @@
priv->ops.get_rate = fixed_get_rate;
priv->ops.owner = owner;
- clk = v4l2_clk_register(&priv->ops, dev_id, id, priv);
+ clk = v4l2_clk_register(&priv->ops, dev_id, priv);
if (IS_ERR(clk))
kfree(priv);