diff options
| author |   Uwe Kleine-König <u.kleine-koenig@pengutronix.de> | 2021-03-01 19:23:07 +0100 |
|---|---|---|
| committer |   Thierry Reding <thierry.reding@gmail.com> | 2021-03-22 11:55:20 +0100 |
| commit | d58cb0ee51ef58acc80f984407979fd5926da9e5 (patch) | |
| tree | a07b1d6742adafa775cc848e2929613903217ca0 /drivers/pwm/core.c | |
| parent | pwm: Always allocate PWM chip base ID dynamically (diff) | |
| download | linux-dev-d58cb0ee51ef58acc80f984407979fd5926da9e5.tar.xz linux-dev-d58cb0ee51ef58acc80f984407979fd5926da9e5.zip | |
pwm: Return -EINVAL for old-style drivers without .set_polarity callback
Since commit 2b1c1a5d5148 ("pwm: Use -EINVAL for unsupported polarity")
all drivers implementing the apply callback are unified to return
-EINVAL if an unsupported polarity is requested. Do the same in the
compat code for old-style drivers.
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Thierry Reding <thierry.reding@gmail.com>
Diffstat (limited to 'drivers/pwm/core.c')
| -rw-r--r-- | drivers/pwm/core.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/pwm/core.c b/drivers/pwm/core.c index 8904eaa6d769..25ee06a14bb3 100644 --- a/drivers/pwm/core.c +++ b/drivers/pwm/core.c @@ -596,7 +596,7 @@ int pwm_apply_state(struct pwm_device *pwm, const struct pwm_state *state) */ if (state->polarity != pwm->state.polarity) { if (!chip->ops->set_polarity) - return -ENOTSUPP; + return -EINVAL; /* * Changing the polarity of a running PWM is |