diff options
| -rw-r--r-- | drivers/pwm/core.c | 2 | ||||
| -rw-r--r-- | drivers/pwm/pwm-bfin.c | 3 | ||||
| -rw-r--r-- | drivers/pwm/pwm-pxa.c | 3 | ||||
| -rw-r--r-- | drivers/pwm/pwm-samsung.c | 3 | ||||
| -rw-r--r-- | drivers/pwm/pwm-tiecap.c | 2 | ||||
| -rw-r--r-- | drivers/pwm/pwm-tiehrpwm.c | 2 |
6 files changed, 3 insertions, 12 deletions
diff --git a/drivers/pwm/core.c b/drivers/pwm/core.c index 92b1782d0d8e..f5acdaa52707 100644 --- a/drivers/pwm/core.c +++ b/drivers/pwm/core.c @@ -371,7 +371,7 @@ EXPORT_SYMBOL_GPL(pwm_free); */ int pwm_config(struct pwm_device *pwm, int duty_ns, int period_ns) { - if (!pwm || period_ns == 0 || duty_ns > period_ns) + if (!pwm || duty_ns < 0 || period_ns <= 0 || duty_ns > period_ns) return -EINVAL; return pwm->chip->ops->config(pwm->chip, pwm, duty_ns, period_ns); diff --git a/drivers/pwm/pwm-bfin.c b/drivers/pwm/pwm-bfin.c index d53c4e7941ef..5da8e185e838 100644 --- a/drivers/pwm/pwm-bfin.c +++ b/drivers/pwm/pwm-bfin.c @@ -69,9 +69,6 @@ static int bfin_pwm_config(struct pwm_chip *chip, struct pwm_device *pwm, unsigned long period, duty; unsigned long long val; - if (duty_ns < 0 || duty_ns > period_ns) - return -EINVAL; - val = (unsigned long long)get_sclk() * period_ns; do_div(val, NSEC_PER_SEC); period = val; diff --git a/drivers/pwm/pwm-pxa.c b/drivers/pwm/pwm-pxa.c index bd5867a1c700..260c3a88564d 100644 --- a/drivers/pwm/pwm-pxa.c +++ b/drivers/pwm/pwm-pxa.c @@ -70,9 +70,6 @@ static int pxa_pwm_config(struct pwm_chip *chip, struct pwm_device *pwm, unsigned long offset; int rc; - if (period_ns == 0 || duty_ns > period_ns) - return -EINVAL; - offset = pwm->hwpwm ? 0x10 : 0; c = clk_get_rate(pc->clk); diff --git a/drivers/pwm/pwm-samsung.c b/drivers/pwm/pwm-samsung.c index e5187c0ade9f..023a3bee76e7 100644 --- a/drivers/pwm/pwm-samsung.c +++ b/drivers/pwm/pwm-samsung.c @@ -126,9 +126,6 @@ static int s3c_pwm_config(struct pwm_chip *chip, struct pwm_device *pwm, if (period_ns > NS_IN_HZ || duty_ns > NS_IN_HZ) return -ERANGE; - if (duty_ns > period_ns) - return -EINVAL; - if (period_ns == s3c->period_ns && duty_ns == s3c->duty_ns) return 0; diff --git a/drivers/pwm/pwm-tiecap.c b/drivers/pwm/pwm-tiecap.c index 081471fbb097..d6d4cf05565e 100644 --- a/drivers/pwm/pwm-tiecap.c +++ b/drivers/pwm/pwm-tiecap.c @@ -60,7 +60,7 @@ static int ecap_pwm_config(struct pwm_chip *chip, struct pwm_device *pwm, unsigned long period_cycles, duty_cycles; unsigned int reg_val; - if (period_ns < 0 || duty_ns < 0 || period_ns > NSEC_PER_SEC) + if (period_ns > NSEC_PER_SEC) return -ERANGE; c = pc->clk_rate; diff --git a/drivers/pwm/pwm-tiehrpwm.c b/drivers/pwm/pwm-tiehrpwm.c index caf00feadc66..d3c1dff0a0dc 100644 --- a/drivers/pwm/pwm-tiehrpwm.c +++ b/drivers/pwm/pwm-tiehrpwm.c @@ -221,7 +221,7 @@ static int ehrpwm_pwm_config(struct pwm_chip *chip, struct pwm_device *pwm, unsigned short ps_divval, tb_divval; int i, cmp_reg; - if (period_ns < 0 || duty_ns < 0 || period_ns > NSEC_PER_SEC) + if (period_ns > NSEC_PER_SEC) return -ERANGE; c = pc->clk_rate; |
