hwmon: (pmbus/adm1275) add adm1273 support

Add support for adm1273 which is similar to adm1275 and other chips
of the series.

Signed-off-by: John Erasmus Mari Geronimo <johnerasmusmari.geronimo@analog.com>
Link: https://lore.kernel.org/r/20250106131740.305988-3-johnerasmusmari.geronimo@analog.com
Signed-off-by: Guenter Roeck <linux@roeck-us.net>

Documentation/hwmon/adm1275.rst

@@ -19,6 +19,14 @@ Supported chips:
 
     Datasheet: www.analog.com/static/imported-files/data_sheets/ADM1272.pdf
 
+  * Analog Devices ADM1273
+
+    Prefix: 'adm1273'
+
+    Addresses scanned: -
+
+    Datasheet: Not yet publicly available
+
   * Analog Devices ADM1275
 
     Prefix: 'adm1275'
@@ -66,14 +74,14 @@ Description
 -----------
 
 This driver supports hardware monitoring for Analog Devices ADM1075, ADM1272,
-ADM1275, ADM1276, ADM1278, ADM1281, ADM1293, and ADM1294 Hot-Swap Controller and
-Digital Power Monitors.
+ADM1273, ADM1275, ADM1276, ADM1278, ADM1281, ADM1293, and ADM1294 Hot-Swap
+Controller and Digital Power Monitors.
 
-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
-PMBus interface.
+ADM1075, ADM1272, ADM1273, 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 PMBus interface.
 
 The driver is a client driver to the core PMBus driver. Please see
 Documentation/hwmon/pmbus.rst for details on PMBus client drivers.
@@ -141,7 +149,7 @@ power1_input_highest	Highest observed input power.
 power1_reset_history	Write any value to reset history.
 
 			Power attributes are supported on ADM1075, ADM1272,
-			ADM1276, ADM1293, and ADM1294.
+			ADM1273, ADM1276, ADM1293, and ADM1294.
 
 temp1_input		Chip temperature.
 temp1_max		Maximum chip temperature.
@@ -151,6 +159,6 @@ temp1_crit_alarm	Critical temperature high alarm.
 temp1_highest		Highest observed temperature.
 temp1_reset_history	Write any value to reset history.
 
-			Temperature attributes are supported on ADM1272 and
-			ADM1278, and ADM1281.
+			Temperature attributes are supported on ADM1272,
+			ADM1273, ADM1278, and ADM1281.
 ======================= =======================================================

drivers/hwmon/pmbus/Kconfig

@@ -51,7 +51,7 @@ 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, ADM1281,
+	  Devices ADM1075, ADM1272, ADM1273, 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

drivers/hwmon/pmbus/adm1275.c

@@ -18,7 +18,7 @@
 #include <linux/log2.h>
 #include "pmbus.h"
 
-enum chips { adm1075, adm1272, adm1275, adm1276, adm1278, adm1281, adm1293, adm1294 };
+enum chips { adm1075, adm1272, adm1273, adm1275, adm1276, adm1278, adm1281, adm1293, adm1294 };
 
 #define ADM1275_MFR_STATUS_IOUT_WARN2	BIT(0)
 #define ADM1293_MFR_STATUS_VAUX_UV_WARN	BIT(5)
@@ -479,6 +479,7 @@ static int adm1275_read_byte_data(struct i2c_client *client, int page, int reg)
 static const struct i2c_device_id adm1275_id[] = {
 	{ "adm1075", adm1075 },
 	{ "adm1272", adm1272 },
+	{ "adm1273", adm1273 },
 	{ "adm1275", adm1275 },
 	{ "adm1276", adm1276 },
 	{ "adm1278", adm1278 },
@@ -555,9 +556,9 @@ static int adm1275_probe(struct i2c_client *client)
 			   "Device mismatch: Configured %s, detected %s\n",
 			   client->name, mid->name);
 
-	if (mid->driver_data == adm1272 || mid->driver_data == adm1278 ||
-	    mid->driver_data == adm1281 || mid->driver_data == adm1293 ||
-	    mid->driver_data == adm1294)
+	if (mid->driver_data == adm1272 || mid->driver_data == adm1273 ||
+	    mid->driver_data == adm1278 || 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;
@@ -630,6 +631,7 @@ static int adm1275_probe(struct i2c_client *client)
 			  PMBUS_HAVE_VOUT | PMBUS_HAVE_STATUS_VOUT;
 		break;
 	case adm1272:
+	case adm1273:
 		data->have_vout = true;
 		data->have_pin_max = true;
 		data->have_temp_max = true;