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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/st,st-nci.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
title: STMicroelectronics ST NCI NFC controller
maintainers:
- Krzysztof Kozlowski <krzk@kernel.org>
properties:
compatible:
enum:
- st,st21nfcb-i2c
- st,st21nfcb-spi
- st,st21nfcc-i2c
reset-gpios:
description: Output GPIO pin used for resetting the controller
ese-present:
type: boolean
description: |
Specifies that an ese is physically connected to the controller
interrupts:
maxItems: 1
reg:
maxItems: 1
uicc-present:
type: boolean
description: |
Specifies that the uicc swp signal can be physically connected to the
controller
required:
- compatible
- interrupts
- reg
- reset-gpios
if:
properties:
compatible:
contains:
enum:
- st,st21nfcb-i2c
- st,st21nfcc-i2c
then:
properties:
spi-max-frequency: false
else:
$ref: /schemas/spi/spi-peripheral-props.yaml#
required:
- spi-max-frequency
unevaluatedProperties: 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 = "st,st21nfcb-i2c";
reg = <0x08>;
interrupt-parent = <&gpio5>;
interrupts = <2 IRQ_TYPE_LEVEL_HIGH>;
reset-gpios = <&gpio5 29 GPIO_ACTIVE_HIGH>;
ese-present;
uicc-present;
};
};
- |
#include <dt-bindings/gpio/gpio.h>
#include <dt-bindings/interrupt-controller/irq.h>
spi {
#address-cells = <1>;
#size-cells = <0>;
nfc@0 {
compatible = "st,st21nfcb-spi";
reg = <0>;
spi-max-frequency = <4000000>;
interrupt-parent = <&gpio5>;
interrupts = <2 IRQ_TYPE_EDGE_RISING>;
reset-gpios = <&gpio5 29 GPIO_ACTIVE_HIGH>;
ese-present;
uicc-present;
};
};
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