Commit d58cb0ee authored by Uwe Kleine-König's avatar Uwe Kleine-König Committed by Thierry Reding
Browse files

pwm: Return -EINVAL for old-style drivers without .set_polarity callback 



Since commit 2b1c1a5d ("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: default avatarUwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: default avatarThierry Reding <thierry.reding@gmail.com>
parent f9a8ee8c

drivers/pwm/core.c

+1 −1
Original line number Diff line number Diff line
@@ -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