diff options
| -rw-r--r-- | drivers/clk/imx/clk-pllv3.c | 10 |
1 files changed, 8 insertions, 2 deletions
diff --git a/drivers/clk/imx/clk-pllv3.c b/drivers/clk/imx/clk-pllv3.c index fc16416d5f..a540a5b68c 100644 --- a/drivers/clk/imx/clk-pllv3.c +++ b/drivers/clk/imx/clk-pllv3.c @@ -121,10 +121,16 @@ static ulong clk_pllv3_sys_set_rate(struct clk *clk, ulong rate) { struct clk_pllv3 *pll = to_clk_pllv3(clk); unsigned long parent_rate = clk_get_parent_rate(clk); - unsigned long min_rate = parent_rate * 54 / 2; - unsigned long max_rate = parent_rate * 108 / 2; + unsigned long min_rate; + unsigned long max_rate; u32 val, div; + if (parent_rate == 0) + return -EINVAL; + + min_rate = parent_rate * 54 / 2; + max_rate = parent_rate * 108 / 2; + if (rate < min_rate || rate > max_rate) return -EINVAL; |