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hwmon: (pmbus/adm1275) add adm1281 support

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Add support for adm1281 which is similar to adm1275 and other chips
of the series.

Signed-off-by: Jose Ramon San Buenaventura <jose.sanbuenaventura@analog.com>
Link: https://lore.kernel.org/r/20240425070948.25788-3-jose.sanbuenaventura@analog.com
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
This commit is contained in:
Jose Ramon San Buenaventura 2024-04-25 15:09:48 +08:00 committed by Guenter Roeck
parent 379bb1f4d5
commit 9163009027
3 changed files with 18 additions and 7 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

14
Documentation/hwmon/adm1275.rst
View File

@ -43,6 +43,14 @@ Supported chips:
Datasheet: www.analog.com/static/imported-files/data_sheets/ADM1278.pdf
* Analog Devices ADM1281
Prefix: 'adm1281'
Addresses scanned: -
Datasheet: https://www.analog.com/media/en/technical-documentation/data-sheets/adm1281.pdf
* Analog Devices ADM1293/ADM1294
Prefix: 'adm1293', 'adm1294'
@ -58,10 +66,10 @@ Description
-----------
This driver supports hardware monitoring for Analog Devices ADM1075, ADM1272,
ADM1275, ADM1276, ADM1278, ADM1293, and ADM1294 Hot-Swap Controller and
ADM1275, ADM1276, ADM1278, ADM1281, ADM1293, and ADM1294 Hot-Swap Controller and
Digital Power Monitors.
ADM1075, ADM1272, ADM1275, ADM1276, ADM1278, ADM1293, and ADM1294 are hot-swap
ADM1075, ADM1272, ADM1275, ADM1276, ADM1278, ADM1281, ADM1293, and ADM1294 are hot-swap
controllers that allow a circuit board to be removed from or inserted into
a live backplane. They also feature current and voltage readback via an
integrated 12 bit analog-to-digital converter (ADC), accessed using a
@ -144,5 +152,5 @@ temp1_highest Highest observed temperature.
temp1_reset_history Write any value to reset history.
Temperature attributes are supported on ADM1272 and
ADM1278.
ADM1278, and ADM1281.
======================= =======================================================

4
drivers/hwmon/pmbus/Kconfig
View File

@ -51,8 +51,8 @@ config SENSORS_ADM1275
tristate "Analog Devices ADM1275 and compatibles"
help
If you say yes here you get hardware monitoring support for Analog
Devices ADM1075, ADM1272, ADM1275, ADM1276, ADM1278, ADM1293,
and ADM1294 Hot-Swap Controller and Digital Power Monitors.
Devices ADM1075, ADM1272, ADM1275, ADM1276, ADM1278, ADM1281,
ADM1293, and ADM1294 Hot-Swap Controller and Digital Power Monitors.
This driver can also be built as a module. If so, the module will
be called adm1275.

7
drivers/hwmon/pmbus/adm1275.c
View File

@ -18,7 +18,7 @@
#include <linux/log2.h>
#include "pmbus.h"
enum chips { adm1075, adm1272, adm1275, adm1276, adm1278, adm1293, adm1294 };
enum chips { adm1075, adm1272, adm1275, adm1276, adm1278, adm1281, adm1293, adm1294 };
#define ADM1275_MFR_STATUS_IOUT_WARN2 BIT(0)
#define ADM1293_MFR_STATUS_VAUX_UV_WARN BIT(5)
@ -482,6 +482,7 @@ static const struct i2c_device_id adm1275_id[] = {
{ "adm1275", adm1275 },
{ "adm1276", adm1276 },
{ "adm1278", adm1278 },
{ "adm1281", adm1281 },
{ "adm1293", adm1293 },
{ "adm1294", adm1294 },
{ }
@ -555,7 +556,8 @@ static int adm1275_probe(struct i2c_client *client)
client->name, mid->name);
if (mid->driver_data == adm1272 || mid->driver_data == adm1278 ||
mid->driver_data == adm1293 || mid->driver_data == adm1294)
mid->driver_data == adm1281 || mid->driver_data == adm1293 ||
mid->driver_data == adm1294)
config_read_fn = i2c_smbus_read_word_data;
else
config_read_fn = i2c_smbus_read_byte_data;
@ -703,6 +705,7 @@ static int adm1275_probe(struct i2c_client *client)
PMBUS_HAVE_VOUT | PMBUS_HAVE_STATUS_VOUT;
break;
case adm1278:
case adm1281:
data->have_vout = true;
data->have_pin_max = true;
data->have_temp_max = true;