[PATCH] clk: ccf: correct the test on the parent uclass in clk_enable/clk_disable

[Patrick Delaunay]

It is safe to check if the uclass id on the device is UCLASS_CLK
before to call the clk_ functions, but today this comparison is
not done on the device used in API: clkp->dev->parent
but on the device himself: clkp->dev.

This patch corrects this behavior and tests if the parent device
is a clock device before to call the clock API, clk_enable or
clk_disable, on this device.

Fixes: 0520be0f67e3 ("clk: prograte clk enable/disable to parent")
Signed-off-by: Patrick Delaunay <patrick.delaunay at foss.st.com>
---

 drivers/clk/clk-uclass.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/clk/clk-uclass.c b/drivers/clk/clk-uclass.c
index d245b672fa..8b6981a307 100644
--- a/drivers/clk/clk-uclass.c
+++ b/drivers/clk/clk-uclass.c
@@ -652,7 +652,7 @@ int clk_enable(struct clk *clk)
 				return 0;
 			}
 			if (clkp->dev->parent &&
-			    device_get_uclass_id(clkp->dev) == UCLASS_CLK) {
+			    device_get_uclass_id(clkp->dev->parent) == UCLASS_CLK) {
 				ret = clk_enable(dev_get_clk_ptr(clkp->dev->parent));
 				if (ret) {
 					printf("Enable %s failed\n",
@@ -726,7 +726,7 @@ int clk_disable(struct clk *clk)
 		}
 
 		if (clkp && clkp->dev->parent &&
-		    device_get_uclass_id(clkp->dev) == UCLASS_CLK) {
+		    device_get_uclass_id(clkp->dev->parent) == UCLASS_CLK) {
 			ret = clk_disable(dev_get_clk_ptr(clkp->dev->parent));
 			if (ret) {
 				printf("Disable %s failed\n",
-- 
2.25.1