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authorHeiner Kallweit <hkallweit1@gmail.com>2023-05-24 22:49:56 +0300
committerThierry Reding <thierry.reding@gmail.com>2023-06-23 16:37:36 +0300
commitbafa23b6c07caac63a9637e83a605c26771b43ee (patch)
tree08f54bb2e84509e46cb56ac23a27d4073770a4a8 /drivers/pwm
parent87a2cbf02d7701255f9fcca7e5bd864a7bb397cf (diff)
downloadlinux-bafa23b6c07caac63a9637e83a605c26771b43ee.tar.xz
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.c5
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);