hwmon: (tmp421) Strengthen detect function
Not all supported chips support the entire I2C address range.
Only accept specific chips at the addresses supported by that chip.
Check for invalid values in conversion rate and status registers.
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Reviewed-by: Jean Delvare <jdelvare@suse.de>
diff --git a/Documentation/hwmon/tmp421 b/Documentation/hwmon/tmp421
index 0cf07f82..d0e7714 100644
--- a/Documentation/hwmon/tmp421
+++ b/Documentation/hwmon/tmp421
@@ -8,11 +8,11 @@
Datasheet: http://focus.ti.com/docs/prod/folders/print/tmp421.html
* Texas Instruments TMP422
Prefix: 'tmp422'
- Addresses scanned: I2C 0x2a, 0x4c, 0x4d, 0x4e and 0x4f
+ Addresses scanned: I2C 0x4c, 0x4d, 0x4e and 0x4f
Datasheet: http://focus.ti.com/docs/prod/folders/print/tmp421.html
* Texas Instruments TMP423
Prefix: 'tmp423'
- Addresses scanned: I2C 0x2a, 0x4c, 0x4d, 0x4e and 0x4f
+ Addresses scanned: I2C 0x4c and 0x4d
Datasheet: http://focus.ti.com/docs/prod/folders/print/tmp421.html
Authors: