[v1] Add MAX14001/MAX14002 support

[PATCH v1 1/2] dt-bindings: iio: adc: Add MAX14001

Posted by Marilene Andrade Garcia 1 month, 1 week ago

Add device-tree documentation for MAX14001/MAX14002 ADCs.
The MAX14001/MAX14002 are isolated, single-channel analog-to-digital
converters with programmable voltage comparators and inrush current
control optimized for configurable binary input applications.

Signed-off-by: Marilene Andrade Garcia <marilene.agarcia@gmail.com>
---
 .../bindings/iio/adc/adi,max14001.yaml        | 78 +++++++++++++++++++
 MAINTAINERS                                   |  7 ++
 2 files changed, 85 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/iio/adc/adi,max14001.yaml

diff --git a/Documentation/devicetree/bindings/iio/adc/adi,max14001.yaml b/Documentation/devicetree/bindings/iio/adc/adi,max14001.yaml
new file mode 100644
index 000000000000..3b2a2e788a17
--- /dev/null
+++ b/Documentation/devicetree/bindings/iio/adc/adi,max14001.yaml
@@ -0,0 +1,78 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+# Copyright 2025 Marilene Andrade Garcia
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/iio/adc/adi,max14001.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Analog Devices MAX14001-MAX14002 10-bit ADCs
+
+maintainers:
+  - Marilene Andrade Garcia <marilene.agarcia@gmail.com>
+
+description:
+  Bindings for the Analog Devices MAX14001-MAX14002 Configurable,
+  Isolated 10-bit ADCs for Multi-Range Binary Inputs.
+
+  Datasheet can be found here
+    https://www.analog.com/media/en/technical-documentation/data-sheets/MAX14001-MAX14002.pdf
+
+$ref: /schemas/spi/spi-peripheral-props.yaml#
+
+properties:
+  compatible:
+    enum:
+      - adi,max14001
+      - adi,max14002
+
+  reg:
+    maxItems: 1
+
+  vdd-supply:
+    description:
+      Isolated DC-DC power supply input voltage.
+
+  vddl-supply:
+    description:
+      Logic power supply.
+
+  vrefin-supply:
+    description:
+      ADC voltage reference supply.
+
+  interrupts:
+    items:
+      - description: |
+          Interrupt for signaling when conversion results exceed the configured
+          upper threshold for ADC readings or fall below the lower threshold for
+          them. Interrupt source must be attached to COUT pin.
+      - description: |
+          Alert output that asserts low during a number of different error
+          conditions. The interrupt source must be attached to FAULT pin.
+
+  spi-max-frequency:
+    maximum: 5000000
+
+required:
+  - compatible
+  - reg
+  - vdd-supply
+  - vddl-supply
+
+unevaluatedProperties: false
+
+examples:
+  - |
+    spi {
+      #address-cells = <1>;
+      #size-cells = <0>;
+
+      max14001: adc@0 {
+        compatible = "adi,max14001";
+        reg = <0>;
+        spi-max-frequency = <5000000>;
+        vdd-supply = <&vdd>;
+        vddl-supply = <&vddl>;
+      };
+    };
+...
diff --git a/MAINTAINERS b/MAINTAINERS
index af1c8d2bfb3d..0aeab5dbd39d 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -14984,6 +14984,13 @@ W:	https://ez.analog.com/linux-software-drivers
 F:	Documentation/devicetree/bindings/iio/adc/maxim,max11205.yaml
 F:	drivers/iio/adc/max11205.c
 
+MAXIM MAX14001/MAX14002 DRIVER
+M:	Marilene Andrade Garcia <marilene.agarcia@gmail.com>
+L:	linux-iio@vger.kernel.org
+S:	Maintained
+W:	https://ez.analog.com/linux-software-drivers
+F:	Documentation/devicetree/bindings/iio/adc/adi,max14001.yaml
+
 MAXIM MAX17040 FAMILY FUEL GAUGE DRIVERS
 R:	Iskren Chernev <iskren.chernev@gmail.com>
 R:	Krzysztof Kozlowski <krzk@kernel.org>
-- 
2.34.1

Re: [PATCH v1 1/2] dt-bindings: iio: adc: Add MAX14001

Posted by ChaosEsque Team 1 day, 9 hours ago

The MMAALLLEEE hackers were thrown out of linux...
for documentation.

On Thu, Aug 21, 2025 at 9:53 AM Marilene Andrade Garcia
<marilene.agarcia@gmail.com> wrote:
>
> Add device-tree documentation for MAX14001/MAX14002 ADCs.
> The MAX14001/MAX14002 are isolated, single-channel analog-to-digital
> converters with programmable voltage comparators and inrush current
> control optimized for configurable binary input applications.
>
> Signed-off-by: Marilene Andrade Garcia <marilene.agarcia@gmail.com>
> ---
>  .../bindings/iio/adc/adi,max14001.yaml        | 78 +++++++++++++++++++
>  MAINTAINERS                                   |  7 ++
>  2 files changed, 85 insertions(+)
>  create mode 100644 Documentation/devicetree/bindings/iio/adc/adi,max14001.yaml
>
> diff --git a/Documentation/devicetree/bindings/iio/adc/adi,max14001.yaml b/Documentation/devicetree/bindings/iio/adc/adi,max14001.yaml
> new file mode 100644
> index 000000000000..3b2a2e788a17
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/iio/adc/adi,max14001.yaml
> @@ -0,0 +1,78 @@
> +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
> +# Copyright 2025 Marilene Andrade Garcia
> +%YAML 1.2
> +---
> +$id: http://devicetree.org/schemas/iio/adc/adi,max14001.yaml#
> +$schema: http://devicetree.org/meta-schemas/core.yaml#
> +
> +title: Analog Devices MAX14001-MAX14002 10-bit ADCs
> +
> +maintainers:
> +  - Marilene Andrade Garcia <marilene.agarcia@gmail.com>
> +
> +description:
> +  Bindings for the Analog Devices MAX14001-MAX14002 Configurable,
> +  Isolated 10-bit ADCs for Multi-Range Binary Inputs.
> +
> +  Datasheet can be found here
> +    https://www.analog.com/media/en/technical-documentation/data-sheets/MAX14001-MAX14002.pdf
> +
> +$ref: /schemas/spi/spi-peripheral-props.yaml#
> +
> +properties:
> +  compatible:
> +    enum:
> +      - adi,max14001
> +      - adi,max14002
> +
> +  reg:
> +    maxItems: 1
> +
> +  vdd-supply:
> +    description:
> +      Isolated DC-DC power supply input voltage.
> +
> +  vddl-supply:
> +    description:
> +      Logic power supply.
> +
> +  vrefin-supply:
> +    description:
> +      ADC voltage reference supply.
> +
> +  interrupts:
> +    items:
> +      - description: |
> +          Interrupt for signaling when conversion results exceed the configured
> +          upper threshold for ADC readings or fall below the lower threshold for
> +          them. Interrupt source must be attached to COUT pin.
> +      - description: |
> +          Alert output that asserts low during a number of different error
> +          conditions. The interrupt source must be attached to FAULT pin.
> +
> +  spi-max-frequency:
> +    maximum: 5000000
> +
> +required:
> +  - compatible
> +  - reg
> +  - vdd-supply
> +  - vddl-supply
> +
> +unevaluatedProperties: false
> +
> +examples:
> +  - |
> +    spi {
> +      #address-cells = <1>;
> +      #size-cells = <0>;
> +
> +      max14001: adc@0 {
> +        compatible = "adi,max14001";
> +        reg = <0>;
> +        spi-max-frequency = <5000000>;
> +        vdd-supply = <&vdd>;
> +        vddl-supply = <&vddl>;
> +      };
> +    };
> +...
> diff --git a/MAINTAINERS b/MAINTAINERS
> index af1c8d2bfb3d..0aeab5dbd39d 100644
> --- a/MAINTAINERS
> +++ b/MAINTAINERS
> @@ -14984,6 +14984,13 @@ W:     https://ez.analog.com/linux-software-drivers
>  F:     Documentation/devicetree/bindings/iio/adc/maxim,max11205.yaml
>  F:     drivers/iio/adc/max11205.c
>
> +MAXIM MAX14001/MAX14002 DRIVER
> +M:     Marilene Andrade Garcia <marilene.agarcia@gmail.com>
> +L:     linux-iio@vger.kernel.org
> +S:     Maintained
> +W:     https://ez.analog.com/linux-software-drivers
> +F:     Documentation/devicetree/bindings/iio/adc/adi,max14001.yaml
> +
>  MAXIM MAX17040 FAMILY FUEL GAUGE DRIVERS
>  R:     Iskren Chernev <iskren.chernev@gmail.com>
>  R:     Krzysztof Kozlowski <krzk@kernel.org>
> --
> 2.34.1
>
>

[PATCH v1 1/2] dt-bindings: iio: adc: Add MAX14001
[PATCH v1 2/2] iio: adc: Add basic support for MAX14001