linux-kernel - Re: [PATCH v1 1/2] dt-binding: iio: add NPCM ADC documentation

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Date:   Thu, 3 Jan 2019 15:14:47 -0600
From:   Rob Herring <robh@...nel.org>
To:     Tomer Maimon <tmaimon77@...il.com>
Cc:     jic23@...nel.org, knaack.h@....de, lars@...afoo.de,
        pmeerw@...erw.net, mark.rutland@....com, yuenn@...gle.com,
        venture@...gle.com, brendanhiggins@...gle.com,
        avifishman70@...il.com, joel@....id.au, linux-iio@...r.kernel.org,
        openbmc@...ts.ozlabs.org, linux-kernel@...r.kernel.org,
        devicetree@...r.kernel.org
Subject: Re: [PATCH v1 1/2] dt-binding: iio: add NPCM ADC documentation

On Mon, Dec 24, 2018 at 06:47:54PM +0200, Tomer Maimon wrote:
> Added device tree binding documentation for Nuvoton BMC
> NPCM Analog-to-Digital Converter(ADC).
> 
> Signed-off-by: Tomer Maimon <tmaimon77@...il.com>
> ---
>  .../bindings/iio/adc/nuvoton,npcm-adc.txt          | 35 ++++++++++++++++++++++
>  1 file changed, 35 insertions(+)
>  create mode 100644 Documentation/devicetree/bindings/iio/adc/nuvoton,npcm-adc.txt
> 
> diff --git a/Documentation/devicetree/bindings/iio/adc/nuvoton,npcm-adc.txt b/Documentation/devicetree/bindings/iio/adc/nuvoton,npcm-adc.txt
> new file mode 100644
> index 000000000000..6f0843d837cc
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/iio/adc/nuvoton,npcm-adc.txt
> @@ -0,0 +1,35 @@
> +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.
> +
> +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.
> +
> +Required Node in the NPCM7xx BMC:
> +An additional register is present in the NPCM7xx SOC which is
> +assumed to be in the same device tree, with and marked as
> +compatible with "nuvoton,npcm750-rst".
> +
> +Example:
> +
> +adc: adc@...0c000 {
> +	compatible = "nuvoton,npcm750-adc";
> +	reg = <0xf000c000 0x8>;
> +	interrupts = <GIC_SPI 0 IRQ_TYPE_LEVEL_HIGH>;
> +	clocks = <&clk NPCM7XX_CLK_ADC>;
> +};
> +
> +rst: rst@...01000 {

Why is this node here?

> +	compatible = "nuvoton,npcm750-rst", "syscon",
> +	"simple-mfd";
> +	reg = <0xf0801000 0x6C>;
> +};
> -- 
> 2.14.1
>