[PATCH linux] ARM: dts: aspeed: zaius: Add iio-hwmon ADC bridge

[Rick Altherr]

Acked-by: Rick Altherr <raltherr at google.com>

On Fri, Mar 31, 2017 at 4:57 PM, Xo Wang <xow at google.com> wrote:

> Add instantiation for iio-hwmon bridge that exports the ADC (an iio
> device) channels to hwmon as a device.
>
> This requires CONFIG_SENSORS_IIO_HWMON to function. Note that the hwmon
> input numbering is one-indexed, so each input will be numbered one
> greater than their corresponding ADC channel.
>
> Signed-off-by: Xo Wang <xow at google.com>
> ---
>  arch/arm/boot/dts/aspeed-bmc-opp-zaius.dts | 8 ++++++++
>  1 file changed, 8 insertions(+)
>
> diff --git a/arch/arm/boot/dts/aspeed-bmc-opp-zaius.dts
> b/arch/arm/boot/dts/aspeed-bmc-opp-zaius.dts
> index dfd0dd7c16e4..7ea66de051d4 100644
> --- a/arch/arm/boot/dts/aspeed-bmc-opp-zaius.dts
> +++ b/arch/arm/boot/dts/aspeed-bmc-opp-zaius.dts
> @@ -86,6 +86,14 @@
>                 enable-gpios = <&gpio ASPEED_GPIO(D, 0) GPIO_ACTIVE_HIGH>;
>                 mux-gpios = <&gpio ASPEED_GPIO(P, 6) GPIO_ACTIVE_HIGH>;
>         };
> +
> +       iio-hwmon {
> +               compatible = "iio-hwmon";
> +               io-channels = <&adc 0>, <&adc 1>, <&adc 2>, <&adc 3>,
> +                       <&adc 4>, <&adc 5>, <&adc 6>, <&adc 7>,
> +                       <&adc 8>, <&adc 9>, <&adc 10>, <&adc 11>,
> +                       <&adc 12>, <&adc 13>, <&adc 14>, <&adc 15>;
> +       };
>  };
>
>  &fmc {
> --
> 2.12.2.564.g063fe858b8-goog
>
>
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