@@ -123,8 +123,12 @@ int clk_register(struct clk *clk)
clk->name, clk->parent->name))
return -EINVAL;
+ INIT_LIST_HEAD(&clk->children);
+
mutex_lock(&clocks_mutex);
list_add_tail(&clk->node, &clocks);
+ if (clk->parent)
+ list_add_tail(&clk->childnode, &clk->parent->children);
mutex_unlock(&clocks_mutex);
/* If rate is already set, use it */
@@ -146,6 +150,7 @@ void clk_unregister(struct clk *clk)
mutex_lock(&clocks_mutex);
list_del(&clk->node);
+ list_del(&clk->childnode);
mutex_unlock(&clocks_mutex);
}
EXPORT_SYMBOL(clk_unregister);
@@ -352,9 +357,8 @@ dump_clock(struct seq_file *s, unsigned nest, struct clk *parent)
/* REVISIT show device associations too */
/* cost is now small, but not linear... */
- list_for_each_entry(clk, &clocks, node) {
- if (clk->parent == parent)
- dump_clock(s, nest + NEST_DELTA, clk);
+ list_for_each_entry(clk, &parent->children, childnode) {
+ dump_clock(s, nest + NEST_DELTA, clk);
}
}
@@ -69,6 +69,8 @@ struct clk {
u8 lpsc;
u8 psc_ctlr;
struct clk *parent;
+ struct list_head children; /* list of children */
+ struct list_head childnode; /* parent's child list node */
struct pll_data *pll_data;
u32 div_reg;
};