diff options
| -rw-r--r-- | drivers/leds/leds-sun50i-a100.c | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/drivers/leds/leds-sun50i-a100.c b/drivers/leds/leds-sun50i-a100.c index e4a7e692a908..171cefd1ea0d 100644 --- a/drivers/leds/leds-sun50i-a100.c +++ b/drivers/leds/leds-sun50i-a100.c @@ -303,9 +303,13 @@ static void sun50i_a100_ledc_set_timing(struct sun50i_a100_ledc *priv) { const struct sun50i_a100_ledc_timing *timing = &priv->timing; unsigned long mod_freq = clk_get_rate(priv->mod_clk); - u32 cycle_ns = NSEC_PER_SEC / mod_freq; + u32 cycle_ns; u32 control; + if (!mod_freq) + return; + + cycle_ns = NSEC_PER_SEC / mod_freq; control = FIELD_PREP(LEDC_T01_TIMING_CTRL_REG_T1H, timing->t1h_ns / cycle_ns) | FIELD_PREP(LEDC_T01_TIMING_CTRL_REG_T1L, timing->t1l_ns / cycle_ns) | FIELD_PREP(LEDC_T01_TIMING_CTRL_REG_T0H, timing->t0h_ns / cycle_ns) | |