diff options
| author |   Guenter Roeck <linux@roeck-us.net> | 2021-12-16 20:05:32 -0800 |
|---|---|---|
| committer | Guenter Roeck <linux@roeck-us.net> | 2022-07-13 08:38:19 -0700 |
| commit | 018b82877046c2644acd43d5a03c0d3aded5caf2 (patch) | |
| tree | b2f59b692751dad14a758d4f9e3ed2bd4f3429cd /drivers/hwmon | |
| parent | hwmon: (lm90) Add support and detection of Philips/NXP NE1618 (diff) | |
| download | linux-dev-018b82877046c2644acd43d5a03c0d3aded5caf2.tar.xz linux-dev-018b82877046c2644acd43d5a03c0d3aded5caf2.zip | |
hwmon: (lm90) Add table with supported Analog/ONSEMI devices
Add table with device names and known register values for supported
devices from Analog / ON Semiconductor.
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Diffstat (limited to 'drivers/hwmon')
| -rw-r--r-- | drivers/hwmon/lm90.c | 36 |
1 files changed, 36 insertions, 0 deletions
diff --git a/drivers/hwmon/lm90.c b/drivers/hwmon/lm90.c index 4694807fa698..c766e548801b 100644 --- a/drivers/hwmon/lm90.c +++ b/drivers/hwmon/lm90.c @@ -1830,6 +1830,42 @@ static const char *lm90_detect_analog(struct i2c_client *client, bool common_add if (status < 0 || config2 < 0 || man_id2 < 0 || chip_id2 < 0) return NULL; + /* + * The following chips should be detected by this function. Known + * register values are listed. Registers 0x3d .. 0x3e are undocumented + * for most of the chips, yet appear to return a well defined value. + * Register 0xff is undocumented for some of the chips. Register 0x3f + * is undocumented for all chips, but also returns a well defined value. + * Values are as reported from real chips unless mentioned otherwise. + * The code below checks values for registers 0x3d, 0x3e, and 0xff, + * but not for register 0x3f. + * + * Chip Register + * 3d 3e 3f fe ff Notes + * ---------------------------------------------------------- + * adm1020 00 00 00 41 39 + * adm1021 00 00 00 41 03 + * adm1021a 00 00 00 41 3c + * adm1023 00 00 00 41 3c same as adm1021a + * adm1032 00 00 00 41 42 + * + * adt7421 21 41 04 41 04 + * adt7461 00 00 00 41 51 + * adt7461a 61 41 05 41 57 + * adt7481 81 41 02 41 62 + * adt7482 - - - 41 65 datasheet + * 82 41 05 41 75 real chip + * adt7483 83 41 04 41 94 + * + * nct72 61 41 07 41 55 + * nct210 00 00 00 41 3f + * nct214 61 41 08 41 5a + * nct1008 - - - 41 57 datasheet rev. 3 + * 61 41 06 41 54 real chip + * + * nvt210 - - - 41 - datasheet + * nvt211 - - - 41 - datasheet + */ switch (chip_id) { case 0x00 ... 0x03: /* ADM1021 */ case 0x05 ... 0x0f: |