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From:   Delphine CC Chiu <Delphine_CC_Chiu@wiwynn.com>
To:     patrick@stwcx.xyz, Guenter Roeck <linux@roeck-us.net>,
        Jean Delvare <jdelvare@suse.com>,
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        Rob Herring <robh+dt@kernel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@linaro.org>,
        Conor Dooley <conor+dt@kernel.org>,
        linux-hwmon@vger.kernel.org, devicetree@vger.kernel.org,
        linux-kernel@vger.kernel.org, linux-doc@vger.kernel.org
Subject: [PATCH v1 1/2] hwmon: pmbus: Add adm1281 support
Date:   Wed, 22 Nov 2023 11:23:41 +0800
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Add device type support for adm1281

Signed-off-by: Delphine CC Chiu <Delphine_CC_Chiu@wiwynn.com>
---
 Documentation/hwmon/adm1275.rst | 8 ++++++++
 drivers/hwmon/pmbus/adm1275.c   | 8 ++++++--
 2 files changed, 14 insertions(+), 2 deletions(-)

diff --git a/Documentation/hwmon/adm1275.rst b/Documentation/hwmon/adm1275.rst
index 804590eeabdc..47a13b56e086 100644
--- a/Documentation/hwmon/adm1275.rst
+++ b/Documentation/hwmon/adm1275.rst
@@ -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:
+
   * Analog Devices ADM1293/ADM1294
 
     Prefix: 'adm1293', 'adm1294'
diff --git a/drivers/hwmon/pmbus/adm1275.c b/drivers/hwmon/pmbus/adm1275.c
index e2c61d6fa521..979474ba6bd3 100644
--- a/drivers/hwmon/pmbus/adm1275.c
+++ b/drivers/hwmon/pmbus/adm1275.c
@@ -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)
@@ -362,6 +362,7 @@ static int adm1275_read_word_data(struct i2c_client *client, int page,
 		ret = -ENODATA;
 		break;
 	}
+
 	return ret;
 }
 
@@ -482,6 +483,7 @@ static const struct i2c_device_id adm1275_id[] = {
 	{ "adm1275", adm1275 },
 	{ "adm1276", adm1276 },
 	{ "adm1278", adm1278 },
+	{ "adm1281", adm1281 },
 	{ "adm1293", adm1293 },
 	{ "adm1294", adm1294 },
 	{ }
@@ -555,7 +557,8 @@ 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 +706,7 @@ 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;
-- 
2.25.1