When an clk is defined with only one parent it probably has no set_parent function. Therefor changing the parent would return with -EINVAL. We check for this case and skip this function in this case.
Signed-off-by: Michael Grzeschik <[email protected]> --- drivers/clk/clk.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/drivers/clk/clk.c b/drivers/clk/clk.c index 89a007a12c5..ac5b83cf8b4 100644 --- a/drivers/clk/clk.c +++ b/drivers/clk/clk.c @@ -302,6 +302,9 @@ int clk_set_parent(struct clk *clk, struct clk *newparent) if (IS_ERR(newparent)) return PTR_ERR(newparent); + if (newparent == curparent) + return 0; + if (!clk->num_parents) return -EINVAL; if (!clk->ops->set_parent) -- 2.47.3
