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Message-Id: <20251122-honeywell_abp2_driver-v1-1-7a8e265f9627@subdimension.ro>
Date: Sat, 22 Nov 2025 23:42:44 +0200
From: Petre Rodan <petre.rodan@...dimension.ro>
To: Jonathan Cameron <jic23@...nel.org>,
David Lechner <dlechner@...libre.com>,
Nuno Sá <nuno.sa@...log.com>,
Andy Shevchenko <andy@...nel.org>, Rob Herring <robh@...nel.org>,
Krzysztof Kozlowski <krzk+dt@...nel.org>,
Conor Dooley <conor+dt@...nel.org>
Cc: linux-iio@...r.kernel.org, devicetree@...r.kernel.org,
linux-kernel@...r.kernel.org, Petre Rodan <petre.rodan@...dimension.ro>
Subject: [PATCH 1/2] dt-bindings: iio: pressure: add honeywell,abp2030pa
Adds binding for digital Honeywell ABP2 series pressure and temperature
sensors.
The i2c address is hardcoded and depends on the part number.
There is an optional GPIO interrupt that signals the end of conversion.
Signed-off-by: Petre Rodan <petre.rodan@...dimension.ro>
---
.../bindings/iio/pressure/honeywell,abp2030pa.yaml | 133 +++++++++++++++++++++
MAINTAINERS | 6 +
2 files changed, 139 insertions(+)
diff --git a/Documentation/devicetree/bindings/iio/pressure/honeywell,abp2030pa.yaml b/Documentation/devicetree/bindings/iio/pressure/honeywell,abp2030pa.yaml
new file mode 100644
index 000000000000..8da39ee43dbc
--- /dev/null
+++ b/Documentation/devicetree/bindings/iio/pressure/honeywell,abp2030pa.yaml
@@ -0,0 +1,133 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/iio/pressure/honeywell,abp2030pa.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Honeywell abp2030pa pressure sensor
+
+maintainers:
+ - Petre Rodan <petre.rodan@...dimension.ro>
+
+description: |
+ Honeywell pressure sensor of model abp2030pa.
+
+ This sensor has an I2C and SPI interface.
+
+ There are many models with different pressure ranges available. The vendor
+ calls them "ABP2 series". All of them have an identical programming model and
+ differ in the pressure range and measurement unit.
+
+ To support different models one needs to specify its pressure triplet.
+
+ For custom silicon chips not covered by the Honeywell ABP2 series datasheet,
+ the pressure values can be specified manually via honeywell,pmin-pascal and
+ honeywell,pmax-pascal.
+
+ Specifications about the devices can be found at:
+ https://prod-edam.honeywell.com/content/dam/honeywell-edam/sps/siot/en-us/products/sensors/pressure-sensors/board-mount-pressure-sensors/basic-abp2-series/documents/sps-siot-abp2-series-datasheet-32350268-en.pdf
+
+properties:
+ compatible:
+ const: honeywell,abp2030pa
+
+ reg:
+ maxItems: 1
+
+ interrupts:
+ description:
+ Optional interrupt for indicating end of conversion.
+ SPI variants of ABP2 chips do not provide this feature.
+ maxItems: 1
+
+ honeywell,pressure-triplet:
+ description: |
+ Case-sensitive five character string that defines pressure range, unit
+ and type as part of the device nomenclature. In the unlikely case of a
+ custom chip, unset and provide pmin-pascal and pmax-pascal instead.
+ enum: [001BA, 1.6BA, 2.5BA, 004BA, 006BA, 008BA, 010BA, 012BA, 001BD,
+ 1.6BD, 2.5BD, 004BD, 001BG, 1.6BG, 2.5BG, 004BG, 006BG, 008BG,
+ 010BG, 012BG, 001GG, 1.2GG, 100KA, 160KA, 250KA, 001KD, 1.6KD,
+ 2.5KD, 004KD, 006KD, 010KD, 016KD, 025KD, 040KD, 060KD, 100KD,
+ 160KD, 250KD, 400KD, 001KG, 1.6KG, 2.5KG, 004KG, 006KG, 010KG,
+ 016KG, 025KG, 040KG, 060KG, 100KG, 160KG, 250KG, 400KG, 600KG,
+ 800KG, 250LD, 600LD, 600LG, 2.5MD, 006MD, 010MD, 016MD, 025MD,
+ 040MD, 060MD, 100MD, 160MD, 250MD, 400MD, 600MD, 006MG, 010MG,
+ 016MG, 025MG, 040MG, 060MG, 100MG, 160MG, 250MG, 400MG, 600MG,
+ 001ND, 002ND, 004ND, 005ND, 010ND, 020ND, 030ND, 002NG, 004NG,
+ 005NG, 010NG, 020NG, 030NG, 015PA, 030PA, 060PA, 100PA, 150PA,
+ 175PA, 001PD, 005PD, 015PD, 030PD, 060PD, 001PG, 005PG, 015PG,
+ 030PG, 060PG, 100PG, 150PG, 175PG]
+ $ref: /schemas/types.yaml#/definitions/string
+
+ honeywell,pmin-pascal:
+ description:
+ Minimum pressure value the sensor can measure in pascal.
+
+ honeywell,pmax-pascal:
+ description:
+ Maximum pressure value the sensor can measure in pascal.
+
+ spi-max-frequency:
+ maximum: 800000
+
+ vdd-supply:
+ description: provide VDD power to the sensor.
+
+required:
+ - compatible
+ - reg
+ - vdd-supply
+
+oneOf:
+ - required:
+ - honeywell,pressure-triplet
+ - required:
+ - honeywell,pmin-pascal
+ - honeywell,pmax-pascal
+
+allOf:
+ - $ref: /schemas/spi/spi-peripheral-props.yaml
+ - if:
+ required:
+ - honeywell,pressure-triplet
+ then:
+ properties:
+ honeywell,pmin-pascal: false
+ honeywell,pmax-pascal: false
+
+additionalProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/gpio/gpio.h>
+ #include <dt-bindings/interrupt-controller/irq.h>
+ i2c {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ pressure@18 {
+ compatible = "honeywell,abp2030pa";
+ reg = <0x18>;
+ interrupt-parent = <&gpio3>;
+ interrupts = <21 IRQ_TYPE_EDGE_RISING>;
+
+ honeywell,pressure-triplet = "001BA";
+ vdd-supply = <&vcc_3v3>;
+ };
+ };
+ - |
+ spi {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ pressure@0 {
+ compatible = "honeywell,abp2030pa";
+ reg = <0>;
+ spi-max-frequency = <800000>;
+
+ honeywell,pressure-triplet = "001PD";
+ vdd-supply = <&vcc_3v3>;
+ };
+ };
+...
diff --git a/MAINTAINERS b/MAINTAINERS
index 31d98efb1ad1..15b92300acbc 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -11404,6 +11404,12 @@ F: lib/test_hmm*
F: mm/hmm*
F: tools/testing/selftests/mm/*hmm*
+HONEYWELL ABP2030PA PRESSURE SENSOR SERIES IIO DRIVER
+M: Petre Rodan <petre.rodan@...dimension.ro>
+L: linux-iio@...r.kernel.org
+S: Maintained
+F: Documentation/devicetree/bindings/iio/pressure/honeywell,abp2030pa.yaml
+
HONEYWELL HSC030PA PRESSURE SENSOR SERIES IIO DRIVER
M: Petre Rodan <petre.rodan@...dimension.ro>
L: linux-iio@...r.kernel.org
--
2.51.0
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