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# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
%YAML 1.2
---
$id: http://devicetree.org/schemas/net/nfc/marvell,nci.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
title: Marvell International Ltd. NCI NFC controller
maintainers:
- Krzysztof Kozlowski <krzk@kernel.org>
properties:
compatible:
enum:
- marvell,nfc-i2c
- marvell,nfc-spi
- marvell,nfc-uart
hci-muxed:
type: boolean
description: |
Specifies that the chip is muxing NCI over HCI frames
interrupts:
maxItems: 1
reg:
maxItems: 1
reset-n-io:
$ref: "/schemas/types.yaml#/definitions/phandle-array"
maxItems: 1
description: |
Output GPIO pin used to reset the chip (active low)
i2c-int-falling:
type: boolean
description: |
For I2C type of connection. Specifies that the chip read event shall be
trigged on falling edge.
i2c-int-rising:
type: boolean
description: |
For I2C type of connection. Specifies that the chip read event shall be
trigged on rising edge.
break-control:
type: boolean
description: |
For UART type of connection. Specifies that the chip needs specific break
management.
flow-control:
type: boolean
description: |
For UART type of connection. Specifies that the chip is using RTS/CTS.
spi-cpha: true
spi-cpol: true
spi-max-frequency: true
required:
- compatible
allOf:
- if:
properties:
compatible:
contains:
const: marvell,nfc-i2c
then:
properties:
break-control: false
flow-control: false
spi-cpha: false
spi-cpol: false
spi-max-frequency: false
required:
- reg
- if:
properties:
compatible:
contains:
const: marvell,nfc-spi
then:
properties:
break-control: false
flow-control: false
i2c-int-falling: false
i2c-int-rising: false
required:
- reg
- if:
properties:
compatible:
contains:
const: marvell,nfc-uart
then:
properties:
i2c-int-falling: false
i2c-int-rising: false
interrupts: false
spi-cpha: false
spi-cpol: false
spi-max-frequency: false
reg: false
additionalProperties: false
examples:
- |
#include <dt-bindings/gpio/gpio.h>
#include <dt-bindings/interrupt-controller/irq.h>
i2c {
#address-cells = <1>;
#size-cells = <0>;
nfc@8 {
compatible = "marvell,nfc-i2c";
reg = <0x8>;
interrupt-parent = <&gpio3>;
interrupts = <21 IRQ_TYPE_EDGE_RISING>;
i2c-int-rising;
reset-n-io = <&gpio3 19 GPIO_ACTIVE_HIGH>;
};
};
- |
#include <dt-bindings/gpio/gpio.h>
#include <dt-bindings/interrupt-controller/irq.h>
spi {
#address-cells = <1>;
#size-cells = <0>;
nfc@0 {
compatible = "marvell,nfc-spi";
reg = <0>;
spi-max-frequency = <3000000>;
spi-cpha;
spi-cpol;
interrupt-parent = <&gpio1>;
interrupts = <17 IRQ_TYPE_EDGE_RISING>;
reset-n-io = <&gpio3 19 GPIO_ACTIVE_HIGH>;
};
};
- |
#include <dt-bindings/gpio/gpio.h>
uart {
nfc {
compatible = "marvell,nfc-uart";
reset-n-io = <&gpio3 16 GPIO_ACTIVE_HIGH>;
hci-muxed;
flow-control;
};
};
|
