1# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause 2%YAML 1.2 3--- 4$id: http://devicetree.org/schemas/net/nfc/st,st-nci.yaml# 5$schema: http://devicetree.org/meta-schemas/core.yaml# 6 7title: STMicroelectronics ST NCI NFC controller 8 9maintainers: 10 - Krzysztof Kozlowski <krzk@kernel.org> 11 12properties: 13 compatible: 14 enum: 15 - st,st21nfcb-i2c 16 - st,st21nfcb-spi 17 - st,st21nfcc-i2c 18 19 reset-gpios: 20 description: Output GPIO pin used for resetting the controller 21 22 ese-present: 23 type: boolean 24 description: | 25 Specifies that an ese is physically connected to the controller 26 27 interrupts: 28 maxItems: 1 29 30 reg: 31 maxItems: 1 32 33 uicc-present: 34 type: boolean 35 description: | 36 Specifies that the uicc swp signal can be physically connected to the 37 controller 38 39required: 40 - compatible 41 - interrupts 42 - reg 43 - reset-gpios 44 45if: 46 properties: 47 compatible: 48 contains: 49 enum: 50 - st,st21nfcb-i2c 51 - st,st21nfcc-i2c 52then: 53 properties: 54 spi-max-frequency: false 55else: 56 $ref: /schemas/spi/spi-peripheral-props.yaml# 57 required: 58 - spi-max-frequency 59 60unevaluatedProperties: false 61 62examples: 63 - | 64 #include <dt-bindings/gpio/gpio.h> 65 #include <dt-bindings/interrupt-controller/irq.h> 66 67 i2c { 68 #address-cells = <1>; 69 #size-cells = <0>; 70 71 nfc@8 { 72 compatible = "st,st21nfcb-i2c"; 73 reg = <0x08>; 74 75 interrupt-parent = <&gpio5>; 76 interrupts = <2 IRQ_TYPE_LEVEL_HIGH>; 77 reset-gpios = <&gpio5 29 GPIO_ACTIVE_HIGH>; 78 79 ese-present; 80 uicc-present; 81 }; 82 }; 83 84 - | 85 #include <dt-bindings/gpio/gpio.h> 86 #include <dt-bindings/interrupt-controller/irq.h> 87 88 spi { 89 #address-cells = <1>; 90 #size-cells = <0>; 91 92 nfc@0 { 93 compatible = "st,st21nfcb-spi"; 94 reg = <0>; 95 96 spi-max-frequency = <4000000>; 97 98 interrupt-parent = <&gpio5>; 99 interrupts = <2 IRQ_TYPE_EDGE_RISING>; 100 reset-gpios = <&gpio5 29 GPIO_ACTIVE_HIGH>; 101 102 ese-present; 103 uicc-present; 104 }; 105 }; 106