Commit 6e7625a9 authored by Jonathan Cameron's avatar Jonathan Cameron
Browse files

dt-bindings:iio:adc:nuvoton,npcm750-adc yaml conversion 



Renamed the file to reflect the only compatible.
Added #io-channel-cells to make it easier to support consumers of the
ADC channels this device provides.

Signed-off-by: default avatarJonathan Cameron <Jonathan.Cameron@huawei.com>
Reviewed-by: default avatarRob Herring <robh@kernel.org>
Cc: Tomer Maimon <tmaimon77@gmail.com>
Link: https://lore.kernel.org/r/20200909175946.395313-9-jic23@kernel.org
parent 6d15f62f

Documentation/devicetree/bindings/iio/adc/nuvoton,npcm-adc.txt

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Nuvoton NPCM Analog to Digital Converter (ADC)



The NPCM ADC is a 10-bit converter for eight channel inputs.



Required properties:

- compatible: "nuvoton,npcm750-adc" for the NPCM7XX BMC.

- reg: specifies physical base address and size of the registers.

- interrupts: Contain the ADC interrupt with flags for falling edge.

- resets : phandle to the reset control for this device.



Optional properties:

- clocks: phandle of ADC reference clock, in case the clock is not

		  added the ADC will use the default ADC sample rate.

- vref-supply: The regulator supply ADC reference voltage, in case the

			   vref-supply is not added the ADC will use internal voltage

			   reference.



Example:



adc: adc@f000c000 {

	compatible = "nuvoton,npcm750-adc";

	reg = <0xf000c000 0x8>;

	interrupts = <GIC_SPI 0 IRQ_TYPE_LEVEL_HIGH>;

	clocks = <&clk NPCM7XX_CLK_ADC>;

	resets = <&rstc NPCM7XX_RESET_IPSRST1 NPCM7XX_RESET_ADC>;

};

Documentation/devicetree/bindings/iio/adc/nuvoton,npcm750-adc.yaml

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# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)

%YAML 1.2

---

$id: http://devicetree.org/schemas/iio/adc/nuvoton,npcm750-adc.yaml#

$schema: http://devicetree.org/meta-schemas/core.yaml#



title: Nuvoton NPCM BMC Analog to Digital Converter (ADC)



maintainers:

  - Tomer Maimon <tmaimon77@gmail.com>



description:

  The NPCM ADC is a 10-bit converter for eight channel inputs.



properties:

  compatible:

    const: nuvoton,npcm750-adc



  reg:

    maxItems: 1



  interrupts:

    maxItems: 1

    description: ADC interrupt, should be set for falling edge.



  resets:

    maxItems: 1



  clocks:

    maxItems: 1

    description: If not provided the defulat ADC sample rate will be used.



  vref-supply:

    description: If not supplied, the internal voltage reference will be used.



  "#io-channel-cells":

    const: 1



required:

  - compatible

  - reg

  - interrupts

  - resets



additionalProperties: false



examples:

  - |

    #include <dt-bindings/interrupt-controller/irq.h>

    #include <dt-bindings/interrupt-controller/arm-gic.h>

    #include <dt-bindings/clock/nuvoton,npcm7xx-clock.h>

    #include <dt-bindings/reset/nuvoton,npcm7xx-reset.h>

    soc {

        #address-cells = <1>;

        #size-cells = <1>;

        adc@f000c000 {

            compatible = "nuvoton,npcm750-adc";

            reg = <0xf000c000 0x8>;

            interrupts = <GIC_SPI 0 IRQ_TYPE_LEVEL_HIGH>;

            clocks = <&clk NPCM7XX_CLK_ADC>;

            resets = <&rstc NPCM7XX_RESET_IPSRST1 NPCM7XX_RESET_ADC>;

        };

    };

...