1 files changed, 37 insertions, 9 deletions

diff --git a/drivers/clk/clk-uclass.c b/drivers/clk/clk-uclass.c
index 9aa8537004..93cb490eb5 100644
--- a/drivers/clk/clk-uclass.c
+++ b/drivers/clk/clk-uclass.c
@@ -344,6 +344,34 @@ int clk_get_by_name(struct udevice *dev, const char *name, struct clk *clk)
 	return clk_get_by_index(dev, index, clk);
 }
 
+int clk_get_by_name_nodev(ofnode node, const char *name, struct clk *clk)
+{
+	int index;
+
+	debug("%s(node=%p, name=%s, clk=%p)\n", __func__,
+		ofnode_get_name(node), name, clk);
+	clk->dev = NULL;
+
+	index = ofnode_stringlist_search(node, "clock-names", name);
+	if (index < 0) {
+		debug("fdt_stringlist_search() failed: %d\n", index);
+		return index;
+	}
+
+	return clk_get_by_index_nodev(node, index, clk);
+}
+
+int clk_get_optional_nodev(ofnode node, const char *name, struct clk *clk)
+{
+	int ret;
+
+	ret = clk_get_by_name_nodev(node, name, clk);
+	if (ret == -ENODATA)
+		return 0;
+
+	return ret;
+}
+
 int clk_release_all(struct clk *clk, int count)
 {
 	int i, ret;
@@ -391,7 +419,7 @@ int clk_free(struct clk *clk)
 	const struct clk_ops *ops;
 
 	debug("%s(clk=%p)\n", __func__, clk);
-	if (!clk)
+	if (!clk_valid(clk))
 		return 0;
 	ops = clk_dev_ops(clk->dev);
 
@@ -406,7 +434,7 @@ ulong clk_get_rate(struct clk *clk)
 	const struct clk_ops *ops;
 
 	debug("%s(clk=%p)\n", __func__, clk);
-	if (!clk)
+	if (!clk_valid(clk))
 		return 0;
 	ops = clk_dev_ops(clk->dev);
 
@@ -422,7 +450,7 @@ struct clk *clk_get_parent(struct clk *clk)
 	struct clk *pclk;
 
 	debug("%s(clk=%p)\n", __func__, clk);
-	if (!clk)
+	if (!clk_valid(clk))
 		return NULL;
 
 	pdev = dev_get_parent(clk->dev);
@@ -439,7 +467,7 @@ long long clk_get_parent_rate(struct clk *clk)
 	struct clk *pclk;
 
 	debug("%s(clk=%p)\n", __func__, clk);
-	if (!clk)
+	if (!clk_valid(clk))
 		return 0;
 
 	pclk = clk_get_parent(clk);
@@ -462,7 +490,7 @@ ulong clk_set_rate(struct clk *clk, ulong rate)
 	const struct clk_ops *ops;
 
 	debug("%s(clk=%p, rate=%lu)\n", __func__, clk, rate);
-	if (!clk)
+	if (!clk_valid(clk))
 		return 0;
 	ops = clk_dev_ops(clk->dev);
 
@@ -477,7 +505,7 @@ int clk_set_parent(struct clk *clk, struct clk *parent)
 	const struct clk_ops *ops;
 
 	debug("%s(clk=%p, parent=%p)\n", __func__, clk, parent);
-	if (!clk)
+	if (!clk_valid(clk))
 		return 0;
 	ops = clk_dev_ops(clk->dev);
 
@@ -494,7 +522,7 @@ int clk_enable(struct clk *clk)
 	int ret;
 
 	debug("%s(clk=%p)\n", __func__, clk);
-	if (!clk)
+	if (!clk_valid(clk))
 		return 0;
 	ops = clk_dev_ops(clk->dev);
 
@@ -554,7 +582,7 @@ int clk_disable(struct clk *clk)
 	int ret;
 
 	debug("%s(clk=%p)\n", __func__, clk);
-	if (!clk)
+	if (!clk_valid(clk))
 		return 0;
 	ops = clk_dev_ops(clk->dev);
 
@@ -678,7 +706,7 @@ struct clk *devm_clk_get_optional(struct udevice *dev, const char *id)
 {
 	struct clk *clk = devm_clk_get(dev, id);
 
-	if (IS_ERR(clk))
+	if (PTR_ERR(clk) == -ENODATA)
 		return NULL;
 
 	return clk;