mirror of
https://github.com/torvalds/linux.git
synced 2026-04-20 07:43:57 -04:00
bc4d251ee8
Bindings for the TI ADS1298 medical ADC. This device is typically used for ECG and similar measurements. Supports data acquisition at configurable scale and sampling frequency. The device has so many options for connecting stuff, at this point the bindings aren't nearly complete but partial bindings are better than no bindings at all. Signed-off-by: Mike Looijmans <mike.looijmans@topic.nl> Reviewed-by: Conor Dooley <conor.dooley@microchip.com> Link: https://lore.kernel.org/r/20240216153020.485201-1-mike.looijmans@topic.nl Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
81 lines
1.7 KiB
YAML
81 lines
1.7 KiB
YAML
# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
|
|
%YAML 1.2
|
|
---
|
|
$id: http://devicetree.org/schemas/iio/adc/ti,ads1298.yaml#
|
|
$schema: http://devicetree.org/meta-schemas/core.yaml#
|
|
|
|
title: Texas Instruments' ads1298 medical ADC chips
|
|
|
|
description: |
|
|
Datasheet at: https://www.ti.com/product/ADS1298
|
|
Bindings for this chip aren't complete.
|
|
|
|
maintainers:
|
|
- Mike Looijmans <mike.looijmans@topic.nl>
|
|
|
|
properties:
|
|
compatible:
|
|
enum:
|
|
- ti,ads1298
|
|
|
|
reg:
|
|
maxItems: 1
|
|
|
|
spi-cpha: true
|
|
|
|
reset-gpios:
|
|
maxItems: 1
|
|
|
|
avdd-supply:
|
|
description:
|
|
Analog power supply, voltage between AVDD and AVSS. When providing a
|
|
symmetric +/- 2.5V, the regulator should report 5V.
|
|
|
|
vref-supply:
|
|
description:
|
|
Optional reference voltage. If omitted, internal reference is used,
|
|
which is 2.4V when analog supply is below 4.4V, 4V otherwise.
|
|
|
|
clocks:
|
|
description: Optional 2.048 MHz external source clock on CLK pin
|
|
maxItems: 1
|
|
|
|
interrupts:
|
|
description: Interrupt on DRDY pin, triggers on falling edge
|
|
maxItems: 1
|
|
|
|
label: true
|
|
|
|
required:
|
|
- compatible
|
|
- reg
|
|
- avdd-supply
|
|
- interrupts
|
|
|
|
allOf:
|
|
- $ref: /schemas/spi/spi-peripheral-props.yaml#
|
|
|
|
unevaluatedProperties: false
|
|
|
|
examples:
|
|
- |
|
|
#include <dt-bindings/gpio/gpio.h>
|
|
#include <dt-bindings/interrupt-controller/irq.h>
|
|
spi {
|
|
#address-cells = <1>;
|
|
#size-cells = <0>;
|
|
|
|
adc@1 {
|
|
reg = <1>;
|
|
compatible = "ti,ads1298";
|
|
label = "ads1298-1-ecg";
|
|
avdd-supply = <®_iso_5v_a>;
|
|
clocks = <&clk_ads1298>;
|
|
interrupt-parent = <&gpio0>;
|
|
interrupts = <78 IRQ_TYPE_EDGE_FALLING>;
|
|
spi-max-frequency = <20000000>;
|
|
spi-cpha;
|
|
};
|
|
};
|
|
...
|