st,st-nci.yaml (2137B)
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 spi-max-frequency: true 34 35 uicc-present: 36 type: boolean 37 description: | 38 Specifies that the uicc swp signal can be physically connected to the 39 controller 40 41required: 42 - compatible 43 - interrupts 44 - reg 45 - reset-gpios 46 47if: 48 properties: 49 compatible: 50 contains: 51 enum: 52 - st,st21nfcb-i2c 53 - st,st21nfcc-i2c 54then: 55 properties: 56 spi-max-frequency: false 57else: 58 required: 59 - spi-max-frequency 60 61additionalProperties: false 62 63examples: 64 - | 65 #include <dt-bindings/gpio/gpio.h> 66 #include <dt-bindings/interrupt-controller/irq.h> 67 68 i2c { 69 #address-cells = <1>; 70 #size-cells = <0>; 71 72 nfc@8 { 73 compatible = "st,st21nfcb-i2c"; 74 reg = <0x08>; 75 76 interrupt-parent = <&gpio5>; 77 interrupts = <2 IRQ_TYPE_LEVEL_HIGH>; 78 reset-gpios = <&gpio5 29 GPIO_ACTIVE_HIGH>; 79 80 ese-present; 81 uicc-present; 82 }; 83 }; 84 85 - | 86 #include <dt-bindings/gpio/gpio.h> 87 #include <dt-bindings/interrupt-controller/irq.h> 88 89 spi { 90 #address-cells = <1>; 91 #size-cells = <0>; 92 93 nfc@0 { 94 compatible = "st,st21nfcb-spi"; 95 reg = <0>; 96 97 spi-max-frequency = <4000000>; 98 99 interrupt-parent = <&gpio5>; 100 interrupts = <2 IRQ_TYPE_EDGE_RISING>; 101 reset-gpios = <&gpio5 29 GPIO_ACTIVE_HIGH>; 102 103 ese-present; 104 uicc-present; 105 }; 106 };