pwm: rcar: Remove legacy APIs

This patch removes legacy APIs. Since rcar_pwm_{en,dis}able() functions
are reused on "atomic" API, this patch changes the arguments of these
functions. No change in behavior.

Signed-off-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>
Acked-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Thierry Reding <thierry.reding@gmail.com>

drivers/pwm/pwm-rcar.c

@@ -139,39 +139,8 @@ static void rcar_pwm_free(struct pwm_chip *chip, struct pwm_device *pwm)
 	pm_runtime_put(chip->dev);
 }
 
-static int rcar_pwm_config(struct pwm_chip *chip, struct pwm_device *pwm,
+static int rcar_pwm_enable(struct rcar_pwm_chip *rp)
-			   int duty_ns, int period_ns)
 {
-	struct rcar_pwm_chip *rp = to_rcar_pwm_chip(chip);
-	int div, ret;
-
-	div = rcar_pwm_get_clock_division(rp, period_ns);
-	if (div < 0)
-		return div;
-
-	/*
-	 * Let the core driver set pwm->period if disabled and duty_ns == 0.
-	 * But, this driver should prevent to set the new duty_ns if current
-	 * duty_cycle is not set
-	 */
-	if (!pwm_is_enabled(pwm) && !duty_ns && !pwm->state.duty_cycle)
-		return 0;
-
-	rcar_pwm_update(rp, RCAR_PWMCR_SYNC, RCAR_PWMCR_SYNC, RCAR_PWMCR);
-
-	ret = rcar_pwm_set_counter(rp, div, duty_ns, period_ns);
-	if (!ret)
-		rcar_pwm_set_clock_control(rp, div);
-
-	/* The SYNC should be set to 0 even if rcar_pwm_set_counter failed */
-	rcar_pwm_update(rp, RCAR_PWMCR_SYNC, 0, RCAR_PWMCR);
-
-	return ret;
-}
-
-static int rcar_pwm_enable(struct pwm_chip *chip, struct pwm_device *pwm)
-{
-	struct rcar_pwm_chip *rp = to_rcar_pwm_chip(chip);
 	u32 value;
 
 	/* Don't enable the PWM device if CYC0 or PH0 is 0 */
@@ -185,10 +154,8 @@ static int rcar_pwm_enable(struct pwm_chip *chip, struct pwm_device *pwm)
 	return 0;
 }
 
-static void rcar_pwm_disable(struct pwm_chip *chip, struct pwm_device *pwm)
+static void rcar_pwm_disable(struct rcar_pwm_chip *rp)
 {
-	struct rcar_pwm_chip *rp = to_rcar_pwm_chip(chip);
-
 	rcar_pwm_update(rp, RCAR_PWMCR_EN0, 0, RCAR_PWMCR);
 }
 
@@ -205,7 +172,7 @@ static int rcar_pwm_apply(struct pwm_chip *chip, struct pwm_device *pwm,
 		return -ENOTSUPP;
 
 	if (!state->enabled) {
-		rcar_pwm_disable(chip, pwm);
+		rcar_pwm_disable(rp);
 		return 0;
 	}
 
@@ -223,7 +190,7 @@ static int rcar_pwm_apply(struct pwm_chip *chip, struct pwm_device *pwm,
 	rcar_pwm_update(rp, RCAR_PWMCR_SYNC, 0, RCAR_PWMCR);
 
 	if (!ret && state->enabled)
-		ret = rcar_pwm_enable(chip, pwm);
+		ret = rcar_pwm_enable(rp);
 
 	return ret;
 }
@@ -231,9 +198,6 @@ static int rcar_pwm_apply(struct pwm_chip *chip, struct pwm_device *pwm,
 static const struct pwm_ops rcar_pwm_ops = {
 	.request = rcar_pwm_request,
 	.free = rcar_pwm_free,
-	.config = rcar_pwm_config,
-	.enable = rcar_pwm_enable,
-	.disable = rcar_pwm_disable,
 	.apply = rcar_pwm_apply,
 	.owner = THIS_MODULE,
 };