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path: root/drivers/clk/clk.c
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Diffstat (limited to 'drivers/clk/clk.c')
-rw-r--r--drivers/clk/clk.c59
1 files changed, 22 insertions, 37 deletions
diff --git a/drivers/clk/clk.c b/drivers/clk/clk.c
index fabbfe1a925..ed87b240580 100644
--- a/drivers/clk/clk.c
+++ b/drivers/clk/clk.c
@@ -52,31 +52,29 @@ static void clk_summary_show_subtree(struct seq_file *s, struct clk *c,
int level)
{
struct clk *child;
- struct hlist_node *tmp;
if (!c)
return;
clk_summary_show_one(s, c, level);
- hlist_for_each_entry(child, tmp, &c->children, child_node)
+ hlist_for_each_entry(child, &c->children, child_node)
clk_summary_show_subtree(s, child, level + 1);
}
static int clk_summary_show(struct seq_file *s, void *data)
{
struct clk *c;
- struct hlist_node *tmp;
seq_printf(s, " clock enable_cnt prepare_cnt rate\n");
seq_printf(s, "---------------------------------------------------------------------\n");
mutex_lock(&prepare_lock);
- hlist_for_each_entry(c, tmp, &clk_root_list, child_node)
+ hlist_for_each_entry(c, &clk_root_list, child_node)
clk_summary_show_subtree(s, c, 0);
- hlist_for_each_entry(c, tmp, &clk_orphan_list, child_node)
+ hlist_for_each_entry(c, &clk_orphan_list, child_node)
clk_summary_show_subtree(s, c, 0);
mutex_unlock(&prepare_lock);
@@ -111,14 +109,13 @@ static void clk_dump_one(struct seq_file *s, struct clk *c, int level)
static void clk_dump_subtree(struct seq_file *s, struct clk *c, int level)
{
struct clk *child;
- struct hlist_node *tmp;
if (!c)
return;
clk_dump_one(s, c, level);
- hlist_for_each_entry(child, tmp, &c->children, child_node) {
+ hlist_for_each_entry(child, &c->children, child_node) {
seq_printf(s, ",");
clk_dump_subtree(s, child, level + 1);
}
@@ -129,21 +126,20 @@ static void clk_dump_subtree(struct seq_file *s, struct clk *c, int level)
static int clk_dump(struct seq_file *s, void *data)
{
struct clk *c;
- struct hlist_node *tmp;
bool first_node = true;
seq_printf(s, "{");
mutex_lock(&prepare_lock);
- hlist_for_each_entry(c, tmp, &clk_root_list, child_node) {
+ hlist_for_each_entry(c, &clk_root_list, child_node) {
if (!first_node)
seq_printf(s, ",");
first_node = false;
clk_dump_subtree(s, c, 0);
}
- hlist_for_each_entry(c, tmp, &clk_orphan_list, child_node) {
+ hlist_for_each_entry(c, &clk_orphan_list, child_node) {
seq_printf(s, ",");
clk_dump_subtree(s, c, 0);
}
@@ -222,7 +218,6 @@ out:
static int clk_debug_create_subtree(struct clk *clk, struct dentry *pdentry)
{
struct clk *child;
- struct hlist_node *tmp;
int ret = -EINVAL;;
if (!clk || !pdentry)
@@ -233,7 +228,7 @@ static int clk_debug_create_subtree(struct clk *clk, struct dentry *pdentry)
if (ret)
goto out;
- hlist_for_each_entry(child, tmp, &clk->children, child_node)
+ hlist_for_each_entry(child, &clk->children, child_node)
clk_debug_create_subtree(child, clk->dentry);
ret = 0;
@@ -299,7 +294,6 @@ out:
static int __init clk_debug_init(void)
{
struct clk *clk;
- struct hlist_node *tmp;
struct dentry *d;
rootdir = debugfs_create_dir("clk", NULL);
@@ -324,10 +318,10 @@ static int __init clk_debug_init(void)
mutex_lock(&prepare_lock);
- hlist_for_each_entry(clk, tmp, &clk_root_list, child_node)
+ hlist_for_each_entry(clk, &clk_root_list, child_node)
clk_debug_create_subtree(clk, rootdir);
- hlist_for_each_entry(clk, tmp, &clk_orphan_list, child_node)
+ hlist_for_each_entry(clk, &clk_orphan_list, child_node)
clk_debug_create_subtree(clk, orphandir);
inited = 1;
@@ -345,13 +339,12 @@ static inline int clk_debug_register(struct clk *clk) { return 0; }
static void clk_disable_unused_subtree(struct clk *clk)
{
struct clk *child;
- struct hlist_node *tmp;
unsigned long flags;
if (!clk)
goto out;
- hlist_for_each_entry(child, tmp, &clk->children, child_node)
+ hlist_for_each_entry(child, &clk->children, child_node)
clk_disable_unused_subtree(child);
spin_lock_irqsave(&enable_lock, flags);
@@ -384,14 +377,13 @@ out:
static int clk_disable_unused(void)
{
struct clk *clk;
- struct hlist_node *tmp;
mutex_lock(&prepare_lock);
- hlist_for_each_entry(clk, tmp, &clk_root_list, child_node)
+ hlist_for_each_entry(clk, &clk_root_list, child_node)
clk_disable_unused_subtree(clk);
- hlist_for_each_entry(clk, tmp, &clk_orphan_list, child_node)
+ hlist_for_each_entry(clk, &clk_orphan_list, child_node)
clk_disable_unused_subtree(clk);
mutex_unlock(&prepare_lock);
@@ -484,12 +476,11 @@ static struct clk *__clk_lookup_subtree(const char *name, struct clk *clk)
{
struct clk *child;
struct clk *ret;
- struct hlist_node *tmp;
if (!strcmp(clk->name, name))
return clk;
- hlist_for_each_entry(child, tmp, &clk->children, child_node) {
+ hlist_for_each_entry(child, &clk->children, child_node) {
ret = __clk_lookup_subtree(name, child);
if (ret)
return ret;
@@ -502,20 +493,19 @@ struct clk *__clk_lookup(const char *name)
{
struct clk *root_clk;
struct clk *ret;
- struct hlist_node *tmp;
if (!name)
return NULL;
/* search the 'proper' clk tree first */
- hlist_for_each_entry(root_clk, tmp, &clk_root_list, child_node) {
+ hlist_for_each_entry(root_clk, &clk_root_list, child_node) {
ret = __clk_lookup_subtree(name, root_clk);
if (ret)
return ret;
}
/* if not found, then search the orphan tree */
- hlist_for_each_entry(root_clk, tmp, &clk_orphan_list, child_node) {
+ hlist_for_each_entry(root_clk, &clk_orphan_list, child_node) {
ret = __clk_lookup_subtree(name, root_clk);
if (ret)
return ret;
@@ -812,7 +802,6 @@ static void __clk_recalc_rates(struct clk *clk, unsigned long msg)
{
unsigned long old_rate;
unsigned long parent_rate = 0;
- struct hlist_node *tmp;
struct clk *child;
old_rate = clk->rate;
@@ -832,7 +821,7 @@ static void __clk_recalc_rates(struct clk *clk, unsigned long msg)
if (clk->notifier_count && msg)
__clk_notify(clk, msg, old_rate, clk->rate);
- hlist_for_each_entry(child, tmp, &clk->children, child_node)
+ hlist_for_each_entry(child, &clk->children, child_node)
__clk_recalc_rates(child, msg);
}
@@ -878,7 +867,6 @@ EXPORT_SYMBOL_GPL(clk_get_rate);
*/
static int __clk_speculate_rates(struct clk *clk, unsigned long parent_rate)
{
- struct hlist_node *tmp;
struct clk *child;
unsigned long new_rate;
int ret = NOTIFY_DONE;
@@ -895,7 +883,7 @@ static int __clk_speculate_rates(struct clk *clk, unsigned long parent_rate)
if (ret == NOTIFY_BAD)
goto out;
- hlist_for_each_entry(child, tmp, &clk->children, child_node) {
+ hlist_for_each_entry(child, &clk->children, child_node) {
ret = __clk_speculate_rates(child, new_rate);
if (ret == NOTIFY_BAD)
break;
@@ -908,11 +896,10 @@ out:
static void clk_calc_subtree(struct clk *clk, unsigned long new_rate)
{
struct clk *child;
- struct hlist_node *tmp;
clk->new_rate = new_rate;
- hlist_for_each_entry(child, tmp, &clk->children, child_node) {
+ hlist_for_each_entry(child, &clk->children, child_node) {
if (child->ops->recalc_rate)
child->new_rate = child->ops->recalc_rate(child->hw, new_rate);
else
@@ -983,7 +970,6 @@ out:
*/
static struct clk *clk_propagate_rate_change(struct clk *clk, unsigned long event)
{
- struct hlist_node *tmp;
struct clk *child, *fail_clk = NULL;
int ret = NOTIFY_DONE;
@@ -996,7 +982,7 @@ static struct clk *clk_propagate_rate_change(struct clk *clk, unsigned long even
fail_clk = clk;
}
- hlist_for_each_entry(child, tmp, &clk->children, child_node) {
+ hlist_for_each_entry(child, &clk->children, child_node) {
clk = clk_propagate_rate_change(child, event);
if (clk)
fail_clk = clk;
@@ -1014,7 +1000,6 @@ static void clk_change_rate(struct clk *clk)
struct clk *child;
unsigned long old_rate;
unsigned long best_parent_rate = 0;
- struct hlist_node *tmp;
old_rate = clk->rate;
@@ -1032,7 +1017,7 @@ static void clk_change_rate(struct clk *clk)
if (clk->notifier_count && old_rate != clk->rate)
__clk_notify(clk, POST_RATE_CHANGE, old_rate, clk->rate);
- hlist_for_each_entry(child, tmp, &clk->children, child_node)
+ hlist_for_each_entry(child, &clk->children, child_node)
clk_change_rate(child);
}
@@ -1348,7 +1333,7 @@ int __clk_init(struct device *dev, struct clk *clk)
{
int i, ret = 0;
struct clk *orphan;
- struct hlist_node *tmp, *tmp2;
+ struct hlist_node *tmp2;
if (!clk)
return -EINVAL;
@@ -1448,7 +1433,7 @@ int __clk_init(struct device *dev, struct clk *clk)
* walk the list of orphan clocks and reparent any that are children of
* this clock
*/
- hlist_for_each_entry_safe(orphan, tmp, tmp2, &clk_orphan_list, child_node) {
+ hlist_for_each_entry_safe(orphan, tmp2, &clk_orphan_list, child_node) {
if (orphan->ops->get_parent) {
i = orphan->ops->get_parent(orphan->hw);
if (!strcmp(clk->name, orphan->parent_names[i]))