hwmon: (ltc2947) fix temperature scaling

The LTC2947 datasheet (Rev. B) calls out in the section "Register
Description: Non-Accumulated Result Registers" (pg. 30) that "To
calculate temperature, multiply the TEMP register value by 0.204°C
and add 5.5°C". Fix to add 5.5C and not 0.55C.

Fixes: 9f90fd6 ("hwmon: Add support for ltc2947")
Signed-off-by: Derek Nguyen <[email protected]>
Signed-off-by: Brandon Maier <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Guenter Roeck <[email protected]>

Author: collins-derek-nguyen

drivers/hwmon/ltc2947-core.c

@@ -396,7 +396,7 @@ static int ltc2947_read_temp(struct device *dev, const u32 attr, long *val,
 		return ret;
 
 	/* in milidegrees celcius, temp is given by: */
-	*val = (__val * 204) + 550;
+	*val = (__val * 204) + 5500;
 
 	return 0;
 }