On 1/24/22 8:17 AM, Patrick Delaunay wrote:
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.delau...@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",
Looks like I put this in [1] in v6, so
Reviewed-by: Sean Anderson <sean...@gmail.com>
[1] https://lore.kernel.org/u-boot/20200521161503.384823-4-sean...@gmail.com/