Commit 09081c9b authored by Uwe Kleine-König's avatar Uwe Kleine-König Committed by Thierry Reding
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pwm: sprd: 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 avatarChunyan Zhang <zhang.lyra@gmail.com>
Signed-off-by: default avatarThierry Reding <thierry.reding@gmail.com>
parent c77e99f4

drivers/pwm/pwm-sprd.c

+3 −0
Original line number Diff line number Diff line
@@ -164,6 +164,9 @@ static int sprd_pwm_apply(struct pwm_chip *chip, struct pwm_device *pwm, 
	struct pwm_state *cstate = &pwm->state;

	int ret;



	if (state->polarity != PWM_POLARITY_NORMAL)

		return -EINVAL;



	if (state->enabled) {

		if (!cstate->enabled) {

			/*