summaryrefslogtreecommitdiff
path: root/drivers
diff options
context:
space:
mode:
authorThierry Reding <thierry.reding@gmail.com>2016-07-25 16:23:36 +0200
committerThierry Reding <thierry.reding@gmail.com>2016-07-25 16:23:36 +0200
commitbcedaba104cec4e9293413bce9be370192356749 (patch)
tree4aa9751b50c199d016d111abbe4bc011f060effa /drivers
parent1a695a905c18548062509178b98bc91e67510864 (diff)
parent33cdcee04be3b4482be97393167e7561b2584e1e (diff)
Merge branch 'fixes' into for-next
Diffstat (limited to 'drivers')
-rw-r--r--drivers/pwm/core.c3
-rw-r--r--drivers/pwm/pwm-atmel-hlcdc.c2
-rw-r--r--drivers/pwm/sysfs.c2
3 files changed, 4 insertions, 3 deletions
diff --git a/drivers/pwm/core.c b/drivers/pwm/core.c
index dba3843c53b8..ed337a8c34ab 100644
--- a/drivers/pwm/core.c
+++ b/drivers/pwm/core.c
@@ -457,7 +457,8 @@ int pwm_apply_state(struct pwm_device *pwm, struct pwm_state *state)
{
int err;
- if (!pwm)
+ if (!pwm || !state || !state->period ||
+ state->duty_cycle > state->period)
return -EINVAL;
if (!memcmp(state, &pwm->state, sizeof(*state)))
diff --git a/drivers/pwm/pwm-atmel-hlcdc.c b/drivers/pwm/pwm-atmel-hlcdc.c
index f994c7eaf41c..14fc011faa32 100644
--- a/drivers/pwm/pwm-atmel-hlcdc.c
+++ b/drivers/pwm/pwm-atmel-hlcdc.c
@@ -272,7 +272,7 @@ static int atmel_hlcdc_pwm_probe(struct platform_device *pdev)
chip->chip.of_pwm_n_cells = 3;
chip->chip.can_sleep = 1;
- ret = pwmchip_add(&chip->chip);
+ ret = pwmchip_add_with_polarity(&chip->chip, PWM_POLARITY_INVERSED);
if (ret) {
clk_disable_unprepare(hlcdc->periph_clk);
return ret;
diff --git a/drivers/pwm/sysfs.c b/drivers/pwm/sysfs.c
index d98599249a05..01695d48dd54 100644
--- a/drivers/pwm/sysfs.c
+++ b/drivers/pwm/sysfs.c
@@ -152,7 +152,7 @@ static ssize_t enable_store(struct device *child,
goto unlock;
}
- pwm_apply_state(pwm, &state);
+ ret = pwm_apply_state(pwm, &state);
unlock:
mutex_unlock(&export->lock);