mfd: tps65911-comparator: Use regmap accessors

Use regmap accessors directly for register manipulation - removing
one layer of abstraction.
Signed-off-by: Michał Mirosław <mirq-linux@rere.qmqm.pl>
Signed-off-by: Lee Jones <lee.jones@linaro.org>

drivers/mfd/tps65911-comparator.c

@@ -69,7 +69,7 @@ static int comp_threshold_set(struct tps65910 *tps65910, int id, int voltage)
 		return -EINVAL;
 
 	val = index << 1;
-	ret = tps65910_reg_write(tps65910, tps_comp.reg, val);
+	ret = regmap_write(tps65910->regmap, tps_comp.reg, val);
 
 	return ret;
 }
@@ -80,7 +80,7 @@ static int comp_threshold_get(struct tps65910 *tps65910, int id)
 	unsigned int val;
 	int ret;
 
-	ret = tps65910_reg_read(tps65910, tps_comp.reg, &val);
+	ret = regmap_read(tps65910->regmap, tps_comp.reg, &val);
 	if (ret < 0)
 		return ret;