Commit 9f0f6107 authored by Uwe Kleine-König's avatar Uwe Kleine-König Committed by Thierry Reding
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pwm: cros-ec: Refuse requests with unsupported polarity 



The driver only supports normal polarity and so should refuse requests
for inversed polarity.

Signed-off-by: default avatarUwe Kleine-König <u.kleine-koenig@pengutronix.de>
Acked-by: default avatarEnric Balletbo i Serra <enric.balletbo@collabora.com>
Signed-off-by: default avatarThierry Reding <thierry.reding@gmail.com>
parent 09081c9b

drivers/pwm/pwm-cros-ec.c

+3 −0
Original line number Diff line number Diff line
@@ -124,6 +124,9 @@ static int cros_ec_pwm_apply(struct pwm_chip *chip, struct pwm_device *pwm, 
	if (state->period != EC_PWM_MAX_DUTY)

		return -EINVAL;



	if (state->polarity != PWM_POLARITY_NORMAL)

		return -EINVAL;



	/*

	 * EC doesn't separate the concept of duty cycle and enabled, but

	 * kernel does. Translate.