Commit f2ac0a8f authored by Maíra Canal's avatar Maíra Canal Committed by Lee Jones
Browse files

backlight: lp855x: Switch to atomic PWM API 



Remove legacy PWM interface (pwm_config, pwm_enable, pwm_disable) and
replace it for the atomic PWM API.

Signed-off-by: default avatarMaíra Canal <mairacanal@riseup.net>
Reviewed-by: default avatarUwe Kleine-König <u.kleine-koenig@pengutronix.de>
Reviewed-by: default avatarDaniel Thompson <daniel.thompson@linaro.org>
Signed-off-by: default avatarLee Jones <lee@kernel.org>
Link: https://lore.kernel.org/r/20220714215334.78226-1-mairacanal@riseup.net
parent 2654f59b

drivers/video/backlight/lp855x_bl.c

+9 −12
Original line number Diff line number Diff line
@@ -218,9 +218,8 @@ static int lp855x_configure(struct lp855x *lp) 


static void lp855x_pwm_ctrl(struct lp855x *lp, int br, int max_br)

{

	unsigned int period = lp->pdata->period_ns;

	unsigned int duty = br * period / max_br;

	struct pwm_device *pwm;

	struct pwm_state state;



	/* request pwm device with the consumer name */

	if (!lp->pwm) {
@@ -230,18 +229,16 @@ static void lp855x_pwm_ctrl(struct lp855x *lp, int br, int max_br) 


		lp->pwm = pwm;



		/*

		 * FIXME: pwm_apply_args() should be removed when switching to

		 * the atomic PWM API.

		 */

		pwm_apply_args(pwm);

		pwm_init_state(lp->pwm, &state);

	} else {

		pwm_get_state(lp->pwm, &state);

	}



	pwm_config(lp->pwm, duty, period);

	if (duty)

		pwm_enable(lp->pwm);

	else

		pwm_disable(lp->pwm);

	state.period = lp->pdata->period_ns;

	state.duty_cycle = div_u64(br * state.period, max_br);

	state.enabled = state.duty_cycle;



	pwm_apply_state(lp->pwm, &state);

}



static int lp855x_bl_update_status(struct backlight_device *bl)