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@xxxxxxxxxxxxx/ Would you mind, since he seems to have sent it first, reviewing his series? Cheers, Conor. > > Signed-off-by: Mike Looijmans <mike.looijmans@xxxxxxxx> > > --- > > .../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@xxxxxxxx> > + > +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@xxxxxxxxxxxxxxxxx > W: www.topic.nl > > Please consider the environment before printing this e-mail
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