linux-kernel - [PATCH 2/2] hwmon: tmp102: Add support for TMP110 and TMP113 devices

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Message-ID: <20250915170819.126668-2-flaviu.nistor@gmail.com>
Date: Mon, 15 Sep 2025 20:08:19 +0300
From: Flaviu Nistor <flaviu.nistor@...il.com>
To: Jean Delvare <jdelvare@...e.com>,
	Guenter Roeck <linux@...ck-us.net>,
	Rob Herring <robh@...nel.org>,
	Krzysztof Kozlowski <krzk+dt@...nel.org>,
	Conor Dooley <conor+dt@...nel.org>
Cc: linux-hwmon@...r.kernel.org,
	devicetree@...r.kernel.org,
	linux-kernel@...r.kernel.org,
	Flaviu Nistor <flaviu.nistor@...il.com>
Subject: [PATCH 2/2] hwmon: tmp102: Add support for TMP110 and TMP113 devices

TMP110 and TMP113 temperature sensors are software compatible
with TMP102 sensor but have different accuracy (maximum error).

Signed-off-by: Flaviu Nistor <flaviu.nistor@...il.com>
---
 Documentation/hwmon/tmp102.rst | 21 +++++++++++++++++++++
 drivers/hwmon/Kconfig          |  4 ++--
 drivers/hwmon/tmp102.c         |  4 ++++
 3 files changed, 27 insertions(+), 2 deletions(-)

diff --git a/Documentation/hwmon/tmp102.rst b/Documentation/hwmon/tmp102.rst
index b1f585531a88..3c2cb5bab1e9 100644
--- a/Documentation/hwmon/tmp102.rst
+++ b/Documentation/hwmon/tmp102.rst
@@ -11,6 +11,22 @@ Supported chips:
 
     Datasheet: http://focus.ti.com/docs/prod/folders/print/tmp102.html
 
+  * Texas Instruments TMP110
+
+    Prefix: 'tmp110'
+
+    Addresses scanned: none
+
+    Datasheet: http://focus.ti.com/docs/prod/folders/print/tmp110.html
+
+  * Texas Instruments TMP113
+
+    Prefix: 'tmp113'
+
+    Addresses scanned: none
+
+    Datasheet: http://focus.ti.com/docs/prod/folders/print/tmp113.html
+
 Author:
 
 	Steven King <sfking@...dc.com>
@@ -27,5 +43,10 @@ operating temperature has a minimum of -55 C and a maximum of +150 C.
 The TMP102 has a programmable update rate that can select between 8, 4, 1, and
 0.5 Hz. (Currently the driver only supports the default of 4 Hz).
 
+The TMP110 and TMP113 are software compatible with TMP102, but have different
+accuracy (maximum error) specifications. The TMP110 has an accuracy (maximum error)
+of 1.0 degree, TMP113 has an accuracy (maximum error) of 0.3 degree, while TMP102
+has an accuracy (maximum error) of 2.0 degree.
+
 The driver provides the common sysfs-interface for temperatures (see
 Documentation/hwmon/sysfs-interface.rst under Temperatures).
diff --git a/drivers/hwmon/Kconfig b/drivers/hwmon/Kconfig
index d6769288a76e..a5626277c95e 100644
--- a/drivers/hwmon/Kconfig
+++ b/drivers/hwmon/Kconfig
@@ -2341,8 +2341,8 @@ config SENSORS_TMP102
 	depends on I2C
 	select REGMAP_I2C
 	help
-	  If you say yes here you get support for Texas Instruments TMP102
-	  sensor chips.
+	  If you say yes here you get support for Texas Instruments
+	  TMP102, TMP110, TMP113 sensor chips.
 
 	  This driver can also be built as a module. If so, the module
 	  will be called tmp102.
diff --git a/drivers/hwmon/tmp102.c b/drivers/hwmon/tmp102.c
index 376e0eac8cc1..0df245d220d7 100644
--- a/drivers/hwmon/tmp102.c
+++ b/drivers/hwmon/tmp102.c
@@ -312,12 +312,16 @@ static DEFINE_SIMPLE_DEV_PM_OPS(tmp102_dev_pm_ops, tmp102_suspend, tmp102_resume
 
 static const struct i2c_device_id tmp102_id[] = {
 	{ "tmp102" },
+	{ "tmp110" },
+	{ "tmp113" },
 	{ }
 };
 MODULE_DEVICE_TABLE(i2c, tmp102_id);
 
 static const struct of_device_id __maybe_unused tmp102_of_match[] = {
 	{ .compatible = "ti,tmp102" },
+	{ .compatible = "ti,tmp110" },
+	{ .compatible = "ti,tmp113" },
 	{ },
 };
 MODULE_DEVICE_TABLE(of, tmp102_of_match);
-- 
2.43.0