On Tue, Jan 09, 2018 at 10:33:33AM +0100, Quentin Schulz wrote:
> X-Powers PMICs have several ADC channels that can be used for different
> purposes, e.g. PMIC internal temperature, battery voltage or AC current.
>
> This is the documentation for AXP209, AXP221/223 ADC bindings.
>
> Signed-off-by: Quentin Schulz <quentin.schulz@xxxxxxxxxxxxxxxxxx>
> ---
> Documentation/devicetree/bindings/iio/adc/axp20x_adc.txt | 39 +++++++++-
> 1 file changed, 39 insertions(+)
> create mode 100644 Documentation/devicetree/bindings/iio/adc/axp20x_adc.txt
>
> diff --git a/Documentation/devicetree/bindings/iio/adc/axp20x_adc.txt b/Documentation/devicetree/bindings/iio/adc/axp20x_adc.txt
> new file mode 100644
> index 0000000..ed6d04e
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/iio/adc/axp20x_adc.txt
> @@ -0,0 +1,39 @@
> +* X-Powers AXP ADC bindings
> +
> +Required properties:
> + - compatible: should be one of:
> + - "x-powers,axp20x-adc",
> + - "x-powers,axp22x-adc",
> + - #io-channel-cells: should be 1,
> +
> +Example:
> +
> +&axp22x {
> + axp_adc: axp-adc {
adc {
With that,
Reviewed-by: Rob Herring <robh@xxxxxxxxxx>
> + compatible = "x-powers,axp22x-adc";
> + #io-channel-cells = <1>;
> + };
> +};
> +
> +ADC channels and their indexes per variant:
> +
> +AXP209
> +------
> + 0 | acin_v
> + 1 | acin_i
> + 2 | vbus_v
> + 3 | vbus_i
> + 4 | pmic_temp
> + 5 | gpio0_v
> + 6 | gpio1_v
> + 7 | ipsout_v
> + 8 | batt_v
> + 9 | batt_chrg_i
> +10 | batt_dischrg_i
> +
> +AXP22x
> +------
> + 0 | pmic_temp
> + 1 | batt_v
> + 2 | batt_chrg_i
> + 3 | batt_dischrg_i
> --
> git-series 0.9.1
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