hwmon: (max31827) Return closest value in update_interval

When user writes a value to update_interval which does not match the
possible values, instead of returning invalid error, return the closest
value.

Signed-off-by: Daniel Matyas <daniel.matyas@analog.com>
Link: https://lore.kernel.org/r/20231031182158.124608-4-daniel.matyas@analog.com
Signed-off-by: Guenter Roeck <linux@roeck-us.net>

drivers/hwmon/max31827.c

@@ -361,9 +361,8 @@ static int max31827_write(struct device *dev, enum hwmon_sensor_types type,
 			       val < max31827_conversions[res])
 				res++;
 
-			if (res == ARRAY_SIZE(max31827_conversions) ||
-			    val != max31827_conversions[res])
-				return -EINVAL;
+			if (res == ARRAY_SIZE(max31827_conversions))
+				res = ARRAY_SIZE(max31827_conversions) - 1;
 
 			res = FIELD_PREP(MAX31827_CONFIGURATION_CNV_RATE_MASK,
 					 res);