[PATCH 0/3] hwmon: (sht3x) Add support for GXCAS GXHT30

[PATCH 0/3] hwmon: (sht3x) Add support for GXCAS GXHT30

[Zaixiang Xu]

This series adds support for the GXCAS GXHT30 humidity and temperature
sensor. The GXHT30 is software compatible with the Sensirion SHT3x
series, using the same I2C command set and conversion formulas.

Since the SHT3x series was previously undocumented in the kernel's
DT binding schemas, this series also introduces the missing
sensirion,sht3x.yaml binding file.

Zaixiang Xu (3):
  dt-bindings: vendor-prefixes: Add GXCAS Technology
  dt-bindings: hwmon: Add Sensirion SHT3x and GXCAS GXHT30
  hwmon: (sht3x) Add support for GXCAS GXHT30

 Documentation/devicetree/bindings/hwmon/sensirion,sht3x.yaml | 44 ++++++++++++++++++++
 Documentation/devicetree/bindings/vendor-prefixes.yaml       |  2 +
 drivers/hwmon/sht3x.c                                        | 16 +++++++-
 3 files changed, 61 insertions(+), 1 deletion(-)
 create mode 100644 Documentation/devicetree/bindings/hwmon/sensirion,sht3x.yaml

-- 
2.34.1

[PATCH 1/3] dt-bindings: vendor-prefixes: Add GXCAS Technology

[Zaixiang Xu]

Add vendor prefix for Beijing Galaxy-CAS Technology Co., Ltd. (GXCAS).

Signed-off-by: Zaixiang Xu <zaixiang.xu.dev@gmail.com>
---
 Documentation/devicetree/bindings/vendor-prefixes.yaml | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/Documentation/devicetree/bindings/vendor-prefixes.yaml b/Documentation/devicetree/bindings/vendor-prefixes.yaml
index ee7fd3cfe203..354836eb8e72 100644
--- a/Documentation/devicetree/bindings/vendor-prefixes.yaml
+++ b/Documentation/devicetree/bindings/vendor-prefixes.yaml
@@ -676,6 +676,8 @@ patternProperties:
     description: Gateworks Corporation
                  use "gateworks" vendor prefix
     deprecated: true
+  "^gxcas,.*":
+    description: Beijing Galaxy-CAS Technology Co., Ltd.
   "^hannstar,.*":
     description: HannStar Display Corporation
   "^haochuangyi,.*":
-- 
2.34.1

Re: [PATCH 1/3] dt-bindings: vendor-prefixes: Add GXCAS Technology

[Krzysztof Kozlowski]

On 19/03/2026 12:19, Zaixiang Xu wrote:
> Add vendor prefix for Beijing Galaxy-CAS Technology Co., Ltd. (GXCAS).
> 
> Signed-off-by: Zaixiang Xu <zaixiang.xu.dev@gmail.com>
> ---
>  Documentation/devicetree/bindings/vendor-prefixes.yaml | 2 ++
>  1 file changed, 2 insertions(+)


Acked-by: Krzysztof Kozlowski <krzysztof.kozlowski@oss.qualcomm.com>

Best regards,
Krzysztof

[PATCH 2/3] dt-bindings: hwmon: Add Sensirion SHT3x and GXCAS GXHT30

[Zaixiang Xu]

Add YAML devicetree binding schema for Sensirion SHT3x series and GXCAS GXHT30 humidity and temperature sensors.

Signed-off-by: Zaixiang Xu <zaixiang.xu.dev@gmail.com>
---
 .../bindings/hwmon/sensirion,sht3x.yaml       | 44 +++++++++++++++++++
 1 file changed, 44 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/hwmon/sensirion,sht3x.yaml

diff --git a/Documentation/devicetree/bindings/hwmon/sensirion,sht3x.yaml b/Documentation/devicetree/bindings/hwmon/sensirion,sht3x.yaml
new file mode 100644
index 000000000000..47dbb743e2ee
--- /dev/null
+++ b/Documentation/devicetree/bindings/hwmon/sensirion,sht3x.yaml
@@ -0,0 +1,44 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/hwmon/sensirion,sht3x.yaml#
+$schema: http://devicetree.org/meta-schema.yaml#
+
+title: Sensirion SHT3x Humidity and Temperature Sensor
+
+maintainers:
+  - Zaixiang Xu <zaixiang.xu.dev@gmail.com>
+
+description: |
+  The SHT3x series is a family of humidity and temperature sensors by Sensirion.
+  It also includes compatible sensors like GXCAS GXHT30.
+
+properties:
+  compatible:
+    enum:
+      - sensirion,sht3x
+      - sensirion,sts3x
+      - sensirion,sht85
+      - gxcas,gxht30
+
+  reg:
+    maxItems: 1
+    description: I2C address (usually 0x44 or 0x45)
+
+required:
+  - compatible
+  - reg
+
+additionalProperties: false
+
+examples:
+  - |
+    i2c {
+        #address-cells = <1>;
+        #size-cells = <0>;
+
+        sensor@44 {
+            compatible = "gxcas,gxht30";
+            reg = <0x44>;
+        };
+    };
\ No newline at end of file
-- 
2.34.1

Re: [PATCH 2/3] dt-bindings: hwmon: Add Sensirion SHT3x and GXCAS GXHT30

[Krzysztof Kozlowski]

On 19/03/2026 12:19, Zaixiang Xu wrote:
> Add YAML devicetree binding schema for Sensirion SHT3x series and GXCAS GXHT30 humidity and temperature sensors.

Please wrap commit message according to Linux coding style / submission
process (neither too early nor over the limit):
https://elixir.bootlin.com/linux/v6.4-rc1/source/Documentation/process/submitting-patches.rst#L597

> 
> Signed-off-by: Zaixiang Xu <zaixiang.xu.dev@gmail.com>
> ---
>  .../bindings/hwmon/sensirion,sht3x.yaml       | 44 +++++++++++++++++++
>  1 file changed, 44 insertions(+)
>  create mode 100644 Documentation/devicetree/bindings/hwmon/sensirion,sht3x.yaml
> 
> diff --git a/Documentation/devicetree/bindings/hwmon/sensirion,sht3x.yaml b/Documentation/devicetree/bindings/hwmon/sensirion,sht3x.yaml
> new file mode 100644
> index 000000000000..47dbb743e2ee
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/hwmon/sensirion,sht3x.yaml
> @@ -0,0 +1,44 @@
> +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
> +%YAML 1.2
> +---
> +$id: http://devicetree.org/schemas/hwmon/sensirion,sht3x.yaml#
> +$schema: http://devicetree.org/meta-schema.yaml#
> +
> +title: Sensirion SHT3x Humidity and Temperature Sensor
> +
> +maintainers:
> +  - Zaixiang Xu <zaixiang.xu.dev@gmail.com>
> +
> +description: |

Do not need '|' unless you need to preserve formatting.


> +  The SHT3x series is a family of humidity and temperature sensors by Sensirion.
> +  It also includes compatible sensors like GXCAS GXHT30.
> +
> +properties:
> +  compatible:
> +    enum:
> +      - sensirion,sht3x

What the 'x' stands for? Wildcard?

> +      - sensirion,sts3x
> +      - sensirion,sht85
> +      - gxcas,gxht30

Keep alphabetical order.

> +
> +  reg:
> +    maxItems: 1
> +    description: I2C address (usually 0x44 or 0x45)
> +
> +required:
> +  - compatible
> +  - reg
> +
> +additionalProperties: false
> +
> +examples:
> +  - |
> +    i2c {
> +        #address-cells = <1>;
> +        #size-cells = <0>;
> +
> +        sensor@44 {
> +            compatible = "gxcas,gxht30";
> +            reg = <0x44>;
> +        };
> +    };
> \ No newline at end of file

You have patch warnings.

No resources? No pins, supplies? Then it looks like trivial device so
should go to trivial-devices.


Best regards,
Krzysztof

[PATCH 3/3] hwmon: (sht3x) Add support for GXCAS GXHT30

[Zaixiang Xu]

Add support for GXCAS GXHT30 sensor to the sht3x driver. The GXHT30 is software compatible with the Sensirion SHT3x series.

Signed-off-by: Zaixiang Xu <zaixiang.xu.dev@gmail.com>
---
 drivers/hwmon/sht3x.c | 16 +++++++++++++++-
 1 file changed, 15 insertions(+), 1 deletion(-)

diff --git a/drivers/hwmon/sht3x.c b/drivers/hwmon/sht3x.c
index 08306ccb6d0b..4e2e5671610a 100644
--- a/drivers/hwmon/sht3x.c
+++ b/drivers/hwmon/sht3x.c
@@ -934,13 +934,26 @@ static const struct i2c_device_id sht3x_ids[] = {
 	{"sht3x", sht3x},
 	{"sts3x", sts3x},
 	{"sht85", sht3x},
+	{"gxht30", sht3x},
 	{}
 };
 
 MODULE_DEVICE_TABLE(i2c, sht3x_ids);
 
+static const struct of_device_id sht3x_of_match[] = {
+	{ .compatible = "sensirion,sht3x" },
+	{ .compatible = "sensirion,sts3x" },
+	{ .compatible = "sensirion,sht85" },
+	{ .compatible = "gxcas,gxht30" },
+	{ }
+};
+MODULE_DEVICE_TABLE(of, sht3x_of_match);
+
 static struct i2c_driver sht3x_i2c_driver = {
-	.driver.name = "sht3x",
+	.driver = {
+		.name = "sht3x",
+		.of_match_table = sht3x_of_match,
+	},
 	.probe       = sht3x_probe,
 	.id_table    = sht3x_ids,
 };
@@ -948,5 +961,6 @@ module_i2c_driver(sht3x_i2c_driver);
 
 MODULE_AUTHOR("David Frey <david.frey@sensirion.com>");
 MODULE_AUTHOR("Pascal Sachs <pascal.sachs@sensirion.com>");
+MODULE_AUTHOR("Your Name <zaixiang.xu.dev@gmail.com>");
 MODULE_DESCRIPTION("Sensirion SHT3x humidity and temperature sensor driver");
 MODULE_LICENSE("GPL");
-- 
2.34.1

Re: [PATCH 3/3] hwmon: (sht3x) Add support for GXCAS GXHT30

[Krzysztof Kozlowski]

On 19/03/2026 12:19, Zaixiang Xu wrote:
> Add support for GXCAS GXHT30 sensor to the sht3x driver. The GXHT30 is software compatible with the Sensirion SHT3x series.

Please wrap commit message according to Linux coding style / submission
process (neither too early nor over the limit):
https://elixir.bootlin.com/linux/v6.4-rc1/source/Documentation/process/submitting-patches.rst#L597

> 
> Signed-off-by: Zaixiang Xu <zaixiang.xu.dev@gmail.com>
> ---
>  drivers/hwmon/sht3x.c | 16 +++++++++++++++-
>  1 file changed, 15 insertions(+), 1 deletion(-)
> 
> diff --git a/drivers/hwmon/sht3x.c b/drivers/hwmon/sht3x.c
> index 08306ccb6d0b..4e2e5671610a 100644
> --- a/drivers/hwmon/sht3x.c
> +++ b/drivers/hwmon/sht3x.c
> @@ -934,13 +934,26 @@ static const struct i2c_device_id sht3x_ids[] = {
>  	{"sht3x", sht3x},
>  	{"sts3x", sts3x},
>  	{"sht85", sht3x},
> +	{"gxht30", sht3x},
>  	{}
>  };
>  
>  MODULE_DEVICE_TABLE(i2c, sht3x_ids);
>  
> +static const struct of_device_id sht3x_of_match[] = {
> +	{ .compatible = "sensirion,sht3x" },
> +	{ .compatible = "sensirion,sts3x" },
> +	{ .compatible = "sensirion,sht85" },
> +	{ .compatible = "gxcas,gxht30" },

If this does not go to trivial devices, then they all look compatible so
this should be expressed with fallback.

> +	{ }
> +};
> +MODULE_DEVICE_TABLE(of, sht3x_of_match);
> +
>  static struct i2c_driver sht3x_i2c_driver = {
> -	.driver.name = "sht3x",
> +	.driver = {
> +		.name = "sht3x",
> +		.of_match_table = sht3x_of_match,
> +	},
>  	.probe       = sht3x_probe,
>  	.id_table    = sht3x_ids,
>  };
> @@ -948,5 +961,6 @@ module_i2c_driver(sht3x_i2c_driver);
>  
>  MODULE_AUTHOR("David Frey <david.frey@sensirion.com>");
>  MODULE_AUTHOR("Pascal Sachs <pascal.sachs@sensirion.com>");
> +MODULE_AUTHOR("Your Name <zaixiang.xu.dev@gmail.com>");

Your or my name?

>  MODULE_DESCRIPTION("Sensirion SHT3x humidity and temperature sensor driver");
>  MODULE_LICENSE("GPL");


Best regards,
Krzysztof