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1# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)2# Copyright 2019-2020 Artur Rojek3%YAML 1.24---5$id: http://devicetree.org/schemas/iio/adc/ingenic,adc.yaml#6$schema: http://devicetree.org/meta-schemas/core.yaml#7 8title: Ingenic JZ47xx ADC controller IIO9 10maintainers:11 - Artur Rojek <contact@artur-rojek.eu>12 13description: >14 Industrial I/O subsystem bindings for ADC controller found in15 Ingenic JZ47xx SoCs.16 17 ADC clients must use the format described in18 https://github.com/devicetree-org/dt-schema/blob/master/schemas/iio/iio-consumer.yaml,19 giving a phandle and IIO specifier pair ("io-channels") to the ADC controller.20 21properties:22 compatible:23 enum:24 - ingenic,jz4725b-adc25 - ingenic,jz4740-adc26 - ingenic,jz4760-adc27 - ingenic,jz4760b-adc28 - ingenic,jz4770-adc29 30 '#io-channel-cells':31 const: 132 description:33 Must be set to <1> to indicate channels are selected by index.34 35 reg:36 maxItems: 137 38 clocks:39 maxItems: 140 41 clock-names:42 items:43 - const: adc44 45 interrupts:46 maxItems: 147 48 ingenic,use-internal-divider:49 description:50 If present, battery voltage is read from the VBAT_IR pin, which has an51 internal 1/4 divider. If absent, it is read through the VBAT_ER pin,52 which does not have such a divider.53 type: boolean54 55if:56 not:57 properties:58 compatible:59 contains:60 const: ingenic,jz4760b-adc61then:62 properties:63 ingenic,use-internal-divider: false64 65required:66 - compatible67 - '#io-channel-cells'68 - reg69 - clocks70 - clock-names71 - interrupts72 73additionalProperties: false74 75examples:76 - |77 #include <dt-bindings/clock/ingenic,jz4740-cgu.h>78 #include <dt-bindings/iio/adc/ingenic,adc.h>79 80 adc@10070000 {81 compatible = "ingenic,jz4740-adc";82 #io-channel-cells = <1>;83 84 reg = <0x10070000 0x30>;85 86 clocks = <&cgu JZ4740_CLK_ADC>;87 clock-names = "adc";88 89 interrupt-parent = <&intc>;90 interrupts = <18>;91 };92