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SubjectRe: [PATCH 1/2] dt-bindings: iio: adc: Add microchip MCP3561/2/4R devices
On Tue, May 23, 2023 at 02:43:53PM +0200, Mike Looijmans wrote:
> The MCP3564R is a 24-bit ADC with 8 multiplexed inputs. The MCP3561R is
> the same device with 2 inputs, the MCP3562R has 4 inputs. The device
> contains one ADC and a multiplexer to select the inputs to the ADC.

My favourite - nothing for a while & then two come along almost at once!
https://lore.kernel.org/all/20230519160145.44208-2-marius.cristea@microchip.com/

Would you mind, since he seems to have sent it first, reviewing his
series?

Cheers,
Conor.

>
> Signed-off-by: Mike Looijmans <mike.looijmans@topic.nl>
>
> ---
>
> .../bindings/iio/adc/microchip,mcp356xr.yaml | 84 +++++++++++++++++++
> 1 file changed, 84 insertions(+)
> create mode 100644 Documentation/devicetree/bindings/iio/adc/microchip,mcp356xr.yaml
>
> diff --git a/Documentation/devicetree/bindings/iio/adc/microchip,mcp356xr.yaml b/Documentation/devicetree/bindings/iio/adc/microchip,mcp356xr.yaml
> new file mode 100644
> index 000000000000..4aef166894c8
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/iio/adc/microchip,mcp356xr.yaml
> @@ -0,0 +1,84 @@
> +# SPDX-License-Identifier: GPL-2.0 OR BSD-2-Clause
> +# Copyright 2023 Topic Embedded Systems
> +%YAML 1.2
> +---
> +$id: http://devicetree.org/schemas/iio/adc/microchip,mcp356xr.yaml#
> +$schema: http://devicetree.org/meta-schemas/core.yaml#
> +
> +title: Microchip MCP3561R/MCP3562R/MCP3564R ADC
> +
> +maintainers:
> + - Mike Looijmans <mike.looijmans@topic.nl>
> +
> +description: |
> + Bindings for the Microchip MCP356xR 8-channel ADC devices. Datasheet and info
> + can be found at: https://www.microchip.com/en-us/product/MCP3564R
> +
> +properties:
> + compatible:
> + enum:
> + - microchip,mcp3561r
> + - microchip,mcp3562r
> + - microchip,mcp3564r
> +
> + reg:
> + maxItems: 1
> +
> + spi-max-frequency:
> + maximum: 20000000
> +
> + clocks:
> + description:
> + Phandle and clock identifier for external sampling clock.
> + If not specified, the internal crystal oscillator will be used.
> + maxItems: 1
> +
> + interrupts:
> + description: IRQ line of the ADC
> + maxItems: 1
> +
> + drive-open-drain:
> + description:
> + Whether to drive the IRQ signal as push-pull (default) or open-drain. Note
> + that the device requires this pin to become "high", otherwise it will stop
> + converting.
> + type: boolean
> +
> + microchip,device-addr:
> + description: Device address when multiple chips are present on the same bus.
> + $ref: /schemas/types.yaml#/definitions/uint32
> + enum: [0, 1, 2, 3]
> + default: 1
> +
> + vref-supply:
> + description:
> + Phandle to the external reference voltage supply.
> + If not specified, the internal voltage reference (2.4V) will be used.
> +
> +required:
> + - compatible
> + - reg
> + - interrupts
> +
> +allOf:
> + - $ref: /schemas/spi/spi-peripheral-props.yaml#
> +
> +unevaluatedProperties: false
> +
> +examples:
> + - |
> + spi {
> + #address-cells = <1>;
> + #size-cells = <0>;
> +
> + adc@0 {
> + compatible = "microchip,mcp3564r";
> + reg = <0>;
> + interrupt-parent = <&gpio5>;
> + interrupts = <15 2>;
> + spi-max-frequency = <20000000>;
> + microchip,device-addr = <1>;
> + vref-supply = <&vref_reg>;
> + clocks = <&xtal>;
> + };
> + };
> --
> 2.17.1
>
>
> Met vriendelijke groet / kind regards,
>
> Mike Looijmans
> System Expert
>
>
> TOPIC Embedded Products B.V.
> Materiaalweg 4, 5681 RJ Best
> The Netherlands
>
> T: +31 (0) 499 33 69 69
> E: mike.looijmans@topicproducts.com
> W: www.topic.nl
>
> Please consider the environment before printing this e-mail
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