diff options
| -rw-r--r-- | Documentation/hwmon/lm90.rst | 10 | ||||
| -rw-r--r-- | drivers/hwmon/Kconfig | 2 | ||||
| -rw-r--r-- | drivers/hwmon/lm90.c | 31 |
3 files changed, 40 insertions, 3 deletions
diff --git a/Documentation/hwmon/lm90.rst b/Documentation/hwmon/lm90.rst index 91947825e734..ef8b55c17118 100644 --- a/Documentation/hwmon/lm90.rst +++ b/Documentation/hwmon/lm90.rst @@ -157,6 +157,16 @@ Supported chips: https://www.onsemi.com/PowerSolutions/product.do?id=NCT214 + * ON Semiconductor NCT218 + + Prefix: 'nct218' + + Addresses scanned: I2C 0x4c - 0x4d + + Datasheet: Publicly available at the ON Semiconductor website + + https://www.onsemi.com/PowerSolutions/product.do?id=NCT218 + * ON Semiconductor NCT72 Prefix: 'nct72' diff --git a/drivers/hwmon/Kconfig b/drivers/hwmon/Kconfig index 9353d207f254..32c605eaec7e 100644 --- a/drivers/hwmon/Kconfig +++ b/drivers/hwmon/Kconfig @@ -1365,7 +1365,7 @@ config SENSORS_LM90 Maxim MAX1617, MAX6642, MAX6646, MAX6647, MAX6648, MAX6649, MAX6654, MAX6657, MAX6658, MAX6659, MAX6680, MAX6681, MAX6692, MAX6695, MAX6696, - ON Semiconductor NCT1008, NCT210, NCT72, NCT214, + ON Semiconductor NCT1008, NCT210, NCT72, NCT214, NCT218, Winbond/Nuvoton W83L771W/G/AWG/ASG, Philips SA56004, GMT G781, Texas Instruments TMP451 and TMP461 sensor chips. diff --git a/drivers/hwmon/lm90.c b/drivers/hwmon/lm90.c index 63bd7c3dcc6b..a553c611624b 100644 --- a/drivers/hwmon/lm90.c +++ b/drivers/hwmon/lm90.c @@ -69,8 +69,9 @@ * / ON Semiconductor. The chips are similar to ADT7461 but support two external * temperature sensors. * - * This driver also supports NCT72 and NCT214 from ON Semiconductor. The chips - * are similar to ADT7461/ADT7461A but have full PEC support (undocumented). + * This driver also supports NCT72, NCT214, and NCT218 from ON Semiconductor. + * The chips are similar to ADT7461/ADT7461A but have full PEC support + * (undocumented). * * This driver also supports the SA56004 from Philips. This device is * pin-compatible with the LM86, the ED/EDP parts are also address-compatible. @@ -262,6 +263,7 @@ static const struct i2c_device_id lm90_id[] = { { "nct1008", adt7461a }, { "nct210", nct210 }, { "nct214", nct72 }, + { "nct218", nct72 }, { "nct72", nct72 }, { "w83l771", w83l771 }, { "sa56004", sa56004 }, @@ -358,6 +360,10 @@ static const struct of_device_id __maybe_unused lm90_of_match[] = { .data = (void *)nct72 }, { + .compatible = "onnn,nct218", + .data = (void *)nct72 + }, + { .compatible = "onnn,nct72", .data = (void *)nct72 }, @@ -1780,6 +1786,24 @@ static const char *lm90_detect_national(struct i2c_client *client, int chip_id, return name; } +static const char *lm90_detect_on(struct i2c_client *client, int chip_id, int config1, + int convrate) +{ + int address = client->addr; + const char *name = NULL; + + switch (chip_id) { + case 0xca: /* NCT218 */ + if ((address == 0x4c || address == 0x4d) && !(config1 & 0x1b) && + convrate <= 0x0a) + name = "nct218"; + break; + default: + break; + } + return name; +} + static const char *lm90_detect_analog(struct i2c_client *client, bool common_address, int chip_id, int config1, int convrate) { @@ -2265,6 +2289,9 @@ static int lm90_detect(struct i2c_client *client, struct i2c_board_info *info) case 0x01: /* National Semiconductor */ name = lm90_detect_national(client, chip_id, config1, convrate); break; + case 0x1a: /* ON */ + name = lm90_detect_on(client, chip_id, config1, convrate); + break; case 0x23: /* Genesys Logic */ if (common_address && !(config1 & 0x3f) && !(convrate & 0xf8)) name = "gl523sm"; |