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# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
%YAML 1.2
---
$id: http://devicetree.org/schemas/iio/adc/atmel,sama5d2-adc.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
title: AT91 SAMA5D2 Analog to Digital Converter (ADC)
maintainers:
- Eugen Hristev <eugen.hristev@microchip.com>
properties:
compatible:
enum:
- atmel,sama5d2-adc
- microchip,sam9x60-adc
- microchip,sama7g5-adc
reg:
maxItems: 1
interrupts:
maxItems: 1
clocks:
maxItems: 1
clock-names:
const: adc_clk
vref-supply: true
vddana-supply: true
atmel,min-sample-rate-hz:
description: Minimum sampling rate, it depends on SoC.
atmel,max-sample-rate-hz:
description: Maximum sampling rate, it depends on SoC.
atmel,startup-time-ms:
description: Startup time expressed in ms, it depends on SoC.
atmel,trigger-edge-type:
$ref: '/schemas/types.yaml#/definitions/uint32'
description:
One of possible edge types for the ADTRG hardware trigger pin.
When the specific edge type is detected, the conversion will
start. Should be one of IRQ_TYPE_EDGE_RISING, IRQ_TYPE_EDGE_FALLING
or IRQ_TYPE_EDGE_BOTH.
enum: [1, 2, 3]
dmas:
maxItems: 1
dma-names:
const: rx
"#io-channel-cells":
const: 1
additionalProperties: false
required:
- compatible
- reg
- interrupts
- clocks
- clock-names
- vref-supply
- vddana-supply
- atmel,min-sample-rate-hz
- atmel,max-sample-rate-hz
- atmel,startup-time-ms
examples:
- |
#include <dt-bindings/dma/at91.h>
#include <dt-bindings/interrupt-controller/irq.h>
soc {
#address-cells = <1>;
#size-cells = <1>;
adc@fc030000 {
compatible = "atmel,sama5d2-adc";
reg = <0xfc030000 0x100>;
interrupts = <40 IRQ_TYPE_LEVEL_HIGH 7>;
clocks = <&adc_clk>;
clock-names = "adc_clk";
atmel,min-sample-rate-hz = <200000>;
atmel,max-sample-rate-hz = <20000000>;
atmel,startup-time-ms = <4>;
vddana-supply = <&vdd_3v3_lp_reg>;
vref-supply = <&vdd_3v3_lp_reg>;
atmel,trigger-edge-type = <IRQ_TYPE_EDGE_BOTH>;
dmas = <&dma0 (AT91_XDMAC_DT_MEM_IF(0) | AT91_XDMAC_DT_PER_IF(1) | AT91_XDMAC_DT_PERID(25))>;
dma-names = "rx";
#io-channel-cells = <1>;
};
};
...
|
