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163 lines
3.6 KiB
163 lines
3.6 KiB
# SPDX-License-Identifier: GPL-2.0 |
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%YAML 1.2 |
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--- |
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$id: http://devicetree.org/schemas/iio/adc/samsung,exynos-adc.yaml# |
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$schema: http://devicetree.org/meta-schemas/core.yaml# |
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title: Samsung Exynos Analog to Digital Converter (ADC) |
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maintainers: |
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- Krzysztof Kozlowski <[email protected]> |
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properties: |
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compatible: |
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enum: |
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- samsung,exynos-adc-v1 # Exynos5250 |
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- samsung,exynos-adc-v2 |
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- samsung,exynos3250-adc |
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- samsung,exynos4212-adc # Exynos4212 and Exynos4412 |
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- samsung,exynos7-adc |
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- samsung,s3c2410-adc |
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- samsung,s3c2416-adc |
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- samsung,s3c2440-adc |
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- samsung,s3c2443-adc |
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- samsung,s3c6410-adc |
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- samsung,s5pv210-adc |
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reg: |
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maxItems: 1 |
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clocks: |
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description: |
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Phandle to ADC bus clock. For Exynos3250 additional clock is needed. |
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minItems: 1 |
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maxItems: 2 |
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clock-names: |
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description: |
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Must contain clock names (adc, sclk) matching phandles in clocks |
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property. |
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minItems: 1 |
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maxItems: 2 |
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interrupts: |
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description: |
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ADC interrupt followed by optional touchscreen interrupt. |
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minItems: 1 |
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maxItems: 2 |
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"#io-channel-cells": |
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const: 1 |
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vdd-supply: true |
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samsung,syscon-phandle: |
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$ref: '/schemas/types.yaml#/definitions/phandle' |
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description: |
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Phandle to the PMU system controller node (to access the ADC_PHY |
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register on Exynos3250/4x12/5250/5420/5800). |
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has-touchscreen: |
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description: |
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If present, indicates that a touchscreen is connected and usable. |
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type: boolean |
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required: |
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- compatible |
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- reg |
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- clocks |
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- clock-names |
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- interrupts |
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- "#io-channel-cells" |
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- vdd-supply |
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additionalProperties: |
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type: object |
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allOf: |
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- if: |
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properties: |
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compatible: |
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contains: |
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enum: |
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- samsung,exynos-adc-v1 |
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- samsung,exynos-adc-v2 |
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- samsung,exynos3250-adc |
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- samsung,exynos4212-adc |
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then: |
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required: |
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- samsung,syscon-phandle |
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- if: |
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properties: |
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compatible: |
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contains: |
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enum: |
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- samsung,exynos3250-adc |
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then: |
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properties: |
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clocks: |
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minItems: 2 |
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maxItems: 2 |
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clock-names: |
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items: |
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- const: adc |
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- const: sclk |
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else: |
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properties: |
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clocks: |
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minItems: 1 |
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maxItems: 1 |
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clock-names: |
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items: |
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- const: adc |
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- if: |
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required: |
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- has-touchscreen |
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then: |
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properties: |
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interrupts: |
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minItems: 2 |
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maxItems: 2 |
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examples: |
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- | |
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adc: adc@12d10000 { |
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compatible = "samsung,exynos-adc-v1"; |
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reg = <0x12d10000 0x100>; |
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interrupts = <0 106 0>; |
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#io-channel-cells = <1>; |
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clocks = <&clock 303>; |
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clock-names = "adc"; |
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vdd-supply = <&buck5_reg>; |
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samsung,syscon-phandle = <&pmu_system_controller>; |
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/* NTC thermistor is a hwmon device */ |
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ncp15wb473 { |
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compatible = "murata,ncp15wb473"; |
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pullup-uv = <1800000>; |
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pullup-ohm = <47000>; |
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pulldown-ohm = <0>; |
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io-channels = <&adc 4>; |
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}; |
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}; |
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- | |
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#include <dt-bindings/clock/exynos3250.h> |
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adc@126c0000 { |
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compatible = "samsung,exynos3250-adc"; |
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reg = <0x126C0000 0x100>; |
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interrupts = <0 137 0>; |
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#io-channel-cells = <1>; |
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clocks = <&cmu CLK_TSADC>, |
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<&cmu CLK_SCLK_TSADC>; |
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clock-names = "adc", "sclk"; |
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vdd-supply = <&buck5_reg>; |
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samsung,syscon-phandle = <&pmu_system_controller>; |
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};
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