[PATCH 04/22] clk: bind clk to new parent device

[Claudiu Beznea]

Clock re-parenting is not binding the clock's device to its new
parent device, it only calls the clock's ops->set_parent() API. The
changes in this commit re-parent the clock device to its new parent
so that subsequent operations like clk_get_parent() to point to the
proper parent.

Signed-off-by: Claudiu Beznea <claudiu.beznea at microchip.com>
---
 drivers/clk/clk-uclass.c | 11 ++++++++++-
 1 file changed, 10 insertions(+), 1 deletion(-)

diff --git a/drivers/clk/clk-uclass.c b/drivers/clk/clk-uclass.c
index aa1f11a27c41..b390a6b01c06 100644
--- a/drivers/clk/clk-uclass.c
+++ b/drivers/clk/clk-uclass.c
@@ -14,6 +14,7 @@
 #include <errno.h>
 #include <log.h>
 #include <malloc.h>
+#include <dm/device-internal.h>
 #include <dm/devres.h>
 #include <dm/read.h>
 #include <linux/bug.h>
@@ -511,6 +512,7 @@ ulong clk_set_rate(struct clk *clk, ulong rate)
 int clk_set_parent(struct clk *clk, struct clk *parent)
 {
 	const struct clk_ops *ops;
+	int ret;
 
 	debug("%s(clk=%p, parent=%p)\n", __func__, clk, parent);
 	if (!clk_valid(clk))
@@ -520,7 +522,14 @@ int clk_set_parent(struct clk *clk, struct clk *parent)
 	if (!ops->set_parent)
 		return -ENOSYS;
 
-	return ops->set_parent(clk, parent);
+	ret = ops->set_parent(clk, parent);
+	if (ret)
+		return ret;
+
+	if (CONFIG_IS_ENABLED(CLK_CCF))
+		ret = device_reparent(clk->dev, parent->dev);
+
+	return ret;
 }
 
 int clk_enable(struct clk *clk)
-- 
2.7.4