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@@ -96,6 +96,76 @@ static const struct file_operations clk_summary_fops = {
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.release = single_release,
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};
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+static void clk_dump_one(struct seq_file *s, struct clk *c, int level)
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+{
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+ if (!c)
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+ return;
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+
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+ seq_printf(s, "\"%s\": { ", c->name);
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+ seq_printf(s, "\"enable_count\": %d,", c->enable_count);
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+ seq_printf(s, "\"prepare_count\": %d,", c->prepare_count);
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+ seq_printf(s, "\"rate\": %lu", c->rate);
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+}
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+
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+static void clk_dump_subtree(struct seq_file *s, struct clk *c, int level)
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+{
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+ struct clk *child;
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+ struct hlist_node *tmp;
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+
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+ if (!c)
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+ return;
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+
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+ clk_dump_one(s, c, level);
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+
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+ hlist_for_each_entry(child, tmp, &c->children, child_node) {
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+ seq_printf(s, ",");
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+ clk_dump_subtree(s, child, level + 1);
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+ }
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+
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+ seq_printf(s, "}");
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+}
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+
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+static int clk_dump(struct seq_file *s, void *data)
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+{
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+ struct clk *c;
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+ struct hlist_node *tmp;
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+ bool first_node = true;
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+
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+ seq_printf(s, "{");
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+
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+ mutex_lock(&prepare_lock);
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+
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+ hlist_for_each_entry(c, tmp, &clk_root_list, child_node) {
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+ if (!first_node)
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+ seq_printf(s, ",");
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+ first_node = false;
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+ clk_dump_subtree(s, c, 0);
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+ }
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+
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+ hlist_for_each_entry(c, tmp, &clk_orphan_list, child_node) {
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+ seq_printf(s, ",");
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+ clk_dump_subtree(s, c, 0);
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+ }
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+
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+ mutex_unlock(&prepare_lock);
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+
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+ seq_printf(s, "}");
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+ return 0;
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+}
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+
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+
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+static int clk_dump_open(struct inode *inode, struct file *file)
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+{
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+ return single_open(file, clk_dump, inode->i_private);
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+}
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+
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+static const struct file_operations clk_dump_fops = {
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+ .open = clk_dump_open,
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+ .read = seq_read,
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+ .llseek = seq_lseek,
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+ .release = single_release,
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+};
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+
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/* caller must hold prepare_lock */
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static int clk_debug_create_one(struct clk *clk, struct dentry *pdentry)
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{
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@@ -241,6 +311,11 @@ static int __init clk_debug_init(void)
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if (!d)
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return -ENOMEM;
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+ d = debugfs_create_file("clk_dump", S_IRUGO, rootdir, NULL,
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+ &clk_dump_fops);
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+ if (!d)
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+ return -ENOMEM;
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+
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orphandir = debugfs_create_dir("orphans", rootdir);
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if (!orphandir)
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