diff options
| author | Heiner Kallweit <hkallweit1@gmail.com> | 2023-05-24 21:49:56 +0200 |
|---|---|---|
| committer | Thierry Reding <thierry.reding@gmail.com> | 2023-06-23 15:37:36 +0200 |
| commit | bafa23b6c07caac63a9637e83a605c26771b43ee (patch) | |
| tree | 08f54bb2e84509e46cb56ac23a27d4073770a4a8 /drivers/pwm | |
| parent | 87a2cbf02d7701255f9fcca7e5bd864a7bb397cf (diff) | |
pwm: meson: remove not needed check in meson_pwm_calc
period >= duty implies that cnt >= duty_cnt. We verified before
that cnt <= 0xffff, therefore we can omit the check here.
Suggested-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
Signed-off-by: Thierry Reding <thierry.reding@gmail.com>
Diffstat (limited to 'drivers/pwm')
| -rw-r--r-- | drivers/pwm/pwm-meson.c | 5 |
1 files changed, 0 insertions, 5 deletions
diff --git a/drivers/pwm/pwm-meson.c b/drivers/pwm/pwm-meson.c index 33107204a951..aad4a0ed3b5a 100644 --- a/drivers/pwm/pwm-meson.c +++ b/drivers/pwm/pwm-meson.c @@ -204,12 +204,7 @@ static int meson_pwm_calc(struct meson_pwm *meson, struct pwm_device *pwm, channel->hi = 0; channel->lo = cnt; } else { - /* Then check is we can have the duty with the same pre_div */ duty_cnt = div64_u64(fin_freq * duty, NSEC_PER_SEC * (pre_div + 1)); - if (duty_cnt > 0xffff) { - dev_err(meson->chip.dev, "unable to get duty cycle\n"); - return -EINVAL; - } dev_dbg(meson->chip.dev, "duty=%llu pre_div=%u duty_cnt=%u\n", duty, pre_div, duty_cnt); |