Merge changes from topic "add_clk_callbacks" into integration

* changes:
  feat(clk): add set_rate callback
  feat(clk): add set_parent callback

drivers/clk/clk.c

@@ -34,6 +34,20 @@ unsigned long clk_get_rate(unsigned long id)
 	return ops->get_rate(id);
 }
 
+int clk_set_rate(unsigned long id, unsigned long rate, unsigned long *orate)
+{
+	unsigned long lrate;
+
+	assert((ops != NULL) && (ops->set_rate != NULL));
+
+	if (orate != NULL) {
+		return ops->set_rate(id, rate, orate);
+	}
+
+	/* In case the caller is not interested in the output rate */
+	return ops->set_rate(id, rate, &lrate);
+}
+
 int clk_get_parent(unsigned long id)
 {
 	assert((ops != NULL) && (ops->get_parent != NULL));
@@ -41,6 +55,13 @@ int clk_get_parent(unsigned long id)
 	return ops->get_parent(id);
 }
 
+int clk_set_parent(unsigned long id, unsigned long parent_id)
+{
+	assert((ops != NULL) && (ops->set_parent != NULL));
+
+	return ops->set_parent(id, parent_id);
+}
+
 bool clk_is_enabled(unsigned long id)
 {
 	assert((ops != NULL) && (ops->is_enabled != NULL));

include/drivers/clk.h

@@ -13,15 +13,20 @@ struct clk_ops {
 	int (*enable)(unsigned long id);
 	void (*disable)(unsigned long id);
 	unsigned long (*get_rate)(unsigned long id);
+	int (*set_rate)(unsigned long id, unsigned long rate,
+			unsigned long *orate);
 	int (*get_parent)(unsigned long id);
+	int (*set_parent)(unsigned long id, unsigned long parent_id);
 	bool (*is_enabled)(unsigned long id);
 };
 
 int clk_enable(unsigned long id);
 void clk_disable(unsigned long id);
 unsigned long clk_get_rate(unsigned long id);
+int clk_set_rate(unsigned long id, unsigned long rate, unsigned long *orate);
 bool clk_is_enabled(unsigned long id);
 int clk_get_parent(unsigned long id);
+int clk_set_parent(unsigned long id, unsigned long parent_id);
 
 void clk_register(const struct clk_ops *ops);