pwm-pio: Remove resolution-restriction on duty cycle

Author: platinum95

drivers/pwm/pwm-pio-rp1.c

@@ -101,15 +101,8 @@ static int pwm_pio_rp1_apply(struct pwm_chip *chip, struct pwm_device *pwm,
 	uint32_t new_duty_cycle;
 	uint32_t new_period;
 
-	if (state->duty_cycle && state->duty_cycle < pwm_pio_resolution)
-		return -EINVAL;
-
-	if (state->duty_cycle != state->period &&
-	    (state->period - state->duty_cycle < pwm_pio_resolution))
-		return -EINVAL;
-
-	new_period = state->period / pwm_pio_resolution;
-	new_duty_cycle = state->duty_cycle / pwm_pio_resolution;
+	new_period = DIV_ROUND_CLOSEST(state->period, pwm_pio_resolution);
+	new_duty_cycle = DIV_ROUND_CLOSEST(state->duty_cycle, pwm_pio_resolution);
 
 	mutex_lock(&ppwm->mutex);