linux-kernel - [PATCH 1/3] hwmon: (sht21) Add support for all sht2x chips

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Message-Id: <20250907-sht2x-v1-1-fd56843b1b43@gmail.com>
Date: Sun, 07 Sep 2025 17:06:15 -0500
From: Kurt Borja <kuurtb@...il.com>
To: Jean Delvare <jdelvare@...e.com>, Guenter Roeck <linux@...ck-us.net>, 
 Jonathan Corbet <corbet@....net>, 
 Andy Shevchenko <andriy.shevchenko@...ux.intel.com>, 
 Rob Herring <robh@...nel.org>, Krzysztof Kozlowski <krzk+dt@...nel.org>, 
 Conor Dooley <conor+dt@...nel.org>
Cc: stable@...r.kernel.org, linux-hwmon@...r.kernel.org, 
 linux-doc@...r.kernel.org, linux-kernel@...r.kernel.org, 
 devicetree@...r.kernel.org, Kurt Borja <kuurtb@...il.com>
Subject: [PATCH 1/3] hwmon: (sht21) Add support for all sht2x chips

All sht2x chips share the same communication protocol so add support for
them.

Cc: stable@...r.kernel.org
Signed-off-by: Kurt Borja <kuurtb@...il.com>
---
 Documentation/hwmon/sht21.rst | 11 +++++++++++
 drivers/hwmon/sht21.c         |  3 +++
 2 files changed, 14 insertions(+)

diff --git a/Documentation/hwmon/sht21.rst b/Documentation/hwmon/sht21.rst
index 1bccc8e8aac8d3532ec17dcdbc6a172102877085..65f85ca68ecac1cba6ad23f783fd648305c40927 100644
--- a/Documentation/hwmon/sht21.rst
+++ b/Documentation/hwmon/sht21.rst
@@ -2,6 +2,17 @@ Kernel driver sht21
 ===================
 
 Supported chips:
+  * Sensirion SHT20
+
+    Prefix: 'sht20'
+
+    Addresses scanned: none
+
+    Datasheet: Publicly available at the Sensirion website
+
+    https://www.sensirion.com/file/datasheet_sht20
+
+
 
   * Sensirion SHT21
 
diff --git a/drivers/hwmon/sht21.c b/drivers/hwmon/sht21.c
index 97327313529b467ed89d8f6b06c2d78efd54efbf..a2748659edc262dac9d87771f849a4fc0a29d981 100644
--- a/drivers/hwmon/sht21.c
+++ b/drivers/hwmon/sht21.c
@@ -275,7 +275,10 @@ static int sht21_probe(struct i2c_client *client)
 
 /* Device ID table */
 static const struct i2c_device_id sht21_id[] = {
+	{ "sht20" },
 	{ "sht21" },
+	{ "sht25" },
+	{ "sht2x" },
 	{ }
 };
 MODULE_DEVICE_TABLE(i2c, sht21_id);

-- 
2.51.0