pwm: iqs620a: Replace one remaining instance of regmap_update_bits()

The call to regmap_update_bits() which was responsible for clearing
the PWM output enable register bit was recently dropped in favor of
a call to regmap_clear_bits(), thereby simplifying the code.

Similarly, the call to regmap_update_bits() which sets the same bit
can be simplified with a call to regmap_set_bits().
Signed-off-by: Jeff LaBundy <jeff@labundy.com>
Reviewed-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Thierry Reding <thierry.reding@gmail.com>

drivers/pwm/pwm-iqs620a.c

@@ -55,8 +55,8 @@ static int iqs620_pwm_init(struct iqs620_pwm_private *iqs620_pwm,
 	if (ret)
 		return ret;
 
-	return regmap_update_bits(iqs62x->regmap, IQS620_PWR_SETTINGS,
-				  IQS620_PWR_SETTINGS_PWM_OUT, 0xff);
+	return regmap_set_bits(iqs62x->regmap, IQS620_PWR_SETTINGS,
+			       IQS620_PWR_SETTINGS_PWM_OUT);
 }
 
 static int iqs620_pwm_apply(struct pwm_chip *chip, struct pwm_device *pwm,