Commit 6d45374a authored by Uwe Kleine-König's avatar Uwe Kleine-König Committed by Thierry Reding
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pwm: ep93xx: Implement .apply callback 



To ease review this reuses the formerly implemented callbacks.

Signed-off-by: default avatarUwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: default avatarThierry Reding <thierry.reding@gmail.com>
parent 868f13bd

drivers/pwm/pwm-ep93xx.c

+39 −4
Original line number Original line Diff line number Diff line
@@ -156,13 +156,48 @@ static void ep93xx_pwm_disable(struct pwm_chip *chip, struct pwm_device *pwm) 
	clk_disable(ep93xx_pwm->clk);

	clk_disable(ep93xx_pwm->clk);

}

}





static int ep93xx_pwm_apply(struct pwm_chip *chip, struct pwm_device *pwm,

			    const struct pwm_state *state)

{

	int ret;

	bool enabled = state->enabled;



	if (state->polarity != pwm->state.polarity) {

		if (enabled) {

			ep93xx_pwm_disable(chip, pwm);

			enabled = false;

		}



		ret = ep93xx_pwm_polarity(chip, pwm, state->polarity);

		if (ret)

			return ret;

	}



	if (!state->enabled) {

		if (enabled)

			ep93xx_pwm_disable(chip, pwm);



		return 0;

	}



	if (state->period != pwm->state.period ||

	    state->duty_cycle != pwm->state.duty_cycle) {

		ret = ep93xx_pwm_config(chip, pwm, (int)state->duty_cycle,

					(int)state->period);

		if (ret)

			return ret;

	}



	if (!enabled)

		return ep93xx_pwm_enable(chip, pwm);



	return 0;

}



static const struct pwm_ops ep93xx_pwm_ops = {

static const struct pwm_ops ep93xx_pwm_ops = {

	.request = ep93xx_pwm_request,

	.request = ep93xx_pwm_request,

	.free = ep93xx_pwm_free,

	.free = ep93xx_pwm_free,

	.config = ep93xx_pwm_config,

	.apply = ep93xx_pwm_apply,

	.set_polarity = ep93xx_pwm_polarity,

	.enable = ep93xx_pwm_enable,

	.disable = ep93xx_pwm_disable,

	.owner = THIS_MODULE,

	.owner = THIS_MODULE,

};

};