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-rw-r--r--Documentation/devicetree/bindings/iio/chemical/ams,ccs811.yaml53
-rw-r--r--Documentation/devicetree/bindings/iio/chemical/atlas,sensor.yaml61
-rw-r--r--Documentation/devicetree/bindings/iio/chemical/bme680.txt11
-rw-r--r--Documentation/devicetree/bindings/iio/chemical/plantower,pms7003.yaml52
-rw-r--r--Documentation/devicetree/bindings/iio/chemical/sensirion,scd30.yaml68
-rw-r--r--Documentation/devicetree/bindings/iio/chemical/sensirion,sgp30.txt15
-rw-r--r--Documentation/devicetree/bindings/iio/chemical/sensirion,sps30.yaml41
7 files changed, 301 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/iio/chemical/ams,ccs811.yaml b/Documentation/devicetree/bindings/iio/chemical/ams,ccs811.yaml
new file mode 100644
index 000000000..52341c8ba
--- /dev/null
+++ b/Documentation/devicetree/bindings/iio/chemical/ams,ccs811.yaml
@@ -0,0 +1,53 @@
+# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/iio/chemical/ams,ccs811.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: AMS CCS811 VOC Sensor
+
+maintainers:
+ - Narcisa Vasile <narcisaanamaria12@gmail.com>
+
+description: |
+ Ultra-Low Power Digital Gas Sensor for Monitoring Indoor Air Quality.
+
+properties:
+ compatible:
+ enum:
+ - ams,ccs811
+ reg:
+ maxItems: 1
+
+ reset-gpios:
+ description: GPIO connected to the nRESET line. This is an active low
+ input to CCS811.
+ maxItems: 1
+
+ wakeup-gpios:
+ description: GPIO connected to the nWAKE line. This is an active low
+ input to CCS811.
+ maxItems: 1
+
+required:
+ - compatible
+ - reg
+
+additionalProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/gpio/gpio.h>
+ i2c {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ voc@5b {
+ compatible = "ams,ccs811";
+ reg = <0x5b>;
+ reset-gpios = <&gpioa 11 GPIO_ACTIVE_LOW>;
+ wakeup-gpios = <&gpioa 12 GPIO_ACTIVE_LOW>;
+ };
+ };
+
+...
diff --git a/Documentation/devicetree/bindings/iio/chemical/atlas,sensor.yaml b/Documentation/devicetree/bindings/iio/chemical/atlas,sensor.yaml
new file mode 100644
index 000000000..4646deeb6
--- /dev/null
+++ b/Documentation/devicetree/bindings/iio/chemical/atlas,sensor.yaml
@@ -0,0 +1,61 @@
+# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/iio/chemical/atlas,sensor.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Atlas Scientific OEM + EZO sensors
+
+maintainers:
+ - Matt Ranostay <matt.ranostay@konsulko.com>
+
+description: |
+ Atlas Scientific OEM + EZO sensors connected via I2C
+
+ Datasheets:
+ http://www.atlas-scientific.com/_files/_datasheets/_oem/DO_oem_datasheet.pdf
+ http://www.atlas-scientific.com/_files/_datasheets/_oem/EC_oem_datasheet.pdf
+ http://www.atlas-scientific.com/_files/_datasheets/_oem/ORP_oem_datasheet.pdf
+ http://www.atlas-scientific.com/_files/_datasheets/_oem/pH_oem_datasheet.pdf
+ http://www.atlas-scientific.com/_files/_datasheets/_oem/RTD_oem_datasheet.pdf
+ http://www.atlas-scientific.com/_files/_datasheets/_probe/EZO_CO2_Datasheet.pdf
+ https://www.atlas-scientific.com/files/EZO_O2_datasheet.pdf
+ https://www.atlas-scientific.com/files/EZO_HUM_Datasheet.pdf
+
+properties:
+ compatible:
+ enum:
+ - atlas,do-sm
+ - atlas,ec-sm
+ - atlas,orp-sm
+ - atlas,ph-sm
+ - atlas,rtd-sm
+ - atlas,co2-ezo
+ - atlas,o2-ezo
+ - atlas,hum-ezo
+
+ reg:
+ maxItems: 1
+
+ interrupts:
+ maxItems: 1
+
+required:
+ - compatible
+ - reg
+
+additionalProperties: false
+
+examples:
+ - |
+ i2c {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ atlas@66 {
+ compatible = "atlas,orp-sm";
+ reg = <0x66>;
+ interrupt-parent = <&gpio1>;
+ interrupts = <16 2>;
+ };
+ };
diff --git a/Documentation/devicetree/bindings/iio/chemical/bme680.txt b/Documentation/devicetree/bindings/iio/chemical/bme680.txt
new file mode 100644
index 000000000..7f3827cfb
--- /dev/null
+++ b/Documentation/devicetree/bindings/iio/chemical/bme680.txt
@@ -0,0 +1,11 @@
+Bosch Sensortec BME680 pressure/temperature/humidity/voc sensors
+
+Required properties:
+- compatible: must be "bosch,bme680"
+
+Example:
+
+bme680@76 {
+ compatible = "bosch,bme680";
+ reg = <0x76>;
+};
diff --git a/Documentation/devicetree/bindings/iio/chemical/plantower,pms7003.yaml b/Documentation/devicetree/bindings/iio/chemical/plantower,pms7003.yaml
new file mode 100644
index 000000000..1fe561574
--- /dev/null
+++ b/Documentation/devicetree/bindings/iio/chemical/plantower,pms7003.yaml
@@ -0,0 +1,52 @@
+# SPDX-License-Identifier: GPL-2.0
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/iio/chemical/plantower,pms7003.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Plantower PMS7003 air pollution sensor
+
+maintainers:
+ - Tomasz Duszynski <tduszyns@gmail.com>
+
+description: |
+ Air pollution sensor capable of measuring mass concentration of dust
+ particles.
+
+properties:
+ compatible:
+ enum:
+ - plantower,pms1003
+ - plantower,pms3003
+ - plantower,pms5003
+ - plantower,pms6003
+ - plantower,pms7003
+ - plantower,pmsa003
+
+ vcc-supply:
+ description: regulator that provides power to the sensor
+
+ plantower,set-gpios:
+ description: GPIO connected to the SET line
+ maxItems: 1
+
+ reset-gpios:
+ description: GPIO connected to the RESET line
+ maxItems: 1
+
+required:
+ - compatible
+ - vcc-supply
+
+additionalProperties: false
+
+examples:
+ - |
+ serial {
+ air-pollution-sensor {
+ compatible = "plantower,pms7003";
+ vcc-supply = <&reg_vcc5v0>;
+ };
+ };
+
+...
diff --git a/Documentation/devicetree/bindings/iio/chemical/sensirion,scd30.yaml b/Documentation/devicetree/bindings/iio/chemical/sensirion,scd30.yaml
new file mode 100644
index 000000000..40d87346f
--- /dev/null
+++ b/Documentation/devicetree/bindings/iio/chemical/sensirion,scd30.yaml
@@ -0,0 +1,68 @@
+# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/iio/chemical/sensirion,scd30.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Sensirion SCD30 carbon dioxide sensor
+
+maintainers:
+ - Tomasz Duszynski <tomasz.duszynski@octakon.com>
+
+description: |
+ Air quality sensor capable of measuring co2 concentration, temperature
+ and relative humidity.
+
+properties:
+ compatible:
+ enum:
+ - sensirion,scd30
+
+ reg:
+ maxItems: 1
+
+ interrupts:
+ maxItems: 1
+
+ vdd-supply: true
+
+ sensirion,sel-gpios:
+ description: GPIO connected to the SEL line
+ maxItems: 1
+
+ sensirion,pwm-gpios:
+ description: GPIO connected to the PWM line
+ maxItems: 1
+
+required:
+ - compatible
+
+additionalProperties: false
+
+examples:
+ - |
+ # include <dt-bindings/interrupt-controller/irq.h>
+ i2c {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ co2-sensor@61 {
+ compatible = "sensirion,scd30";
+ reg = <0x61>;
+ vdd-supply = <&vdd>;
+ interrupt-parent = <&gpio0>;
+ interrupts = <0 IRQ_TYPE_LEVEL_HIGH>;
+ };
+ };
+ - |
+ # include <dt-bindings/interrupt-controller/irq.h>
+ serial {
+ co2-sensor {
+ compatible = "sensirion,scd30";
+ vdd-supply = <&vdd>;
+ interrupt-parent = <&gpio0>;
+ interrupts = <0 IRQ_TYPE_LEVEL_HIGH>;
+ };
+ };
+
+...
diff --git a/Documentation/devicetree/bindings/iio/chemical/sensirion,sgp30.txt b/Documentation/devicetree/bindings/iio/chemical/sensirion,sgp30.txt
new file mode 100644
index 000000000..5844ed581
--- /dev/null
+++ b/Documentation/devicetree/bindings/iio/chemical/sensirion,sgp30.txt
@@ -0,0 +1,15 @@
+* Sensirion SGP30/SGPC3 multi-pixel Gas Sensor
+
+Required properties:
+
+ - compatible: must be one of
+ "sensirion,sgp30"
+ "sensirion,sgpc3"
+ - reg: the I2C address of the sensor
+
+Example:
+
+gas@58 {
+ compatible = "sensirion,sgp30";
+ reg = <0x58>;
+};
diff --git a/Documentation/devicetree/bindings/iio/chemical/sensirion,sps30.yaml b/Documentation/devicetree/bindings/iio/chemical/sensirion,sps30.yaml
new file mode 100644
index 000000000..a93d1972a
--- /dev/null
+++ b/Documentation/devicetree/bindings/iio/chemical/sensirion,sps30.yaml
@@ -0,0 +1,41 @@
+# SPDX-License-Identifier: GPL-2.0
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/iio/chemical/sensirion,sps30.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Sensirion SPS30 particulate matter sensor
+
+maintainers:
+ - Tomasz Duszynski <tduszyns@gmail.com>
+
+description: |
+ Air pollution sensor capable of measuring mass concentration of dust
+ particles.
+
+properties:
+ compatible:
+ enum:
+ - sensirion,sps30
+ reg:
+ maxItems: 1
+
+required:
+ - compatible
+ - reg
+
+additionalProperties: false
+
+examples:
+ - |
+ i2c {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ air-pollution-sensor@69 {
+ compatible = "sensirion,sps30";
+ reg = <0x69>;
+ };
+ };
+
+...