| Tom Rini | 53633a8 | 2024-02-29 12:33:36 -0500 | [diff] [blame] | 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/samsung,s3fwrn5.yaml# |
| 5 | $schema: http://devicetree.org/meta-schemas/core.yaml# |
| 6 | |
| 7 | title: Samsung S3FWRN5 NCI NFC Controller |
| 8 | |
| 9 | maintainers: |
| 10 | - Krzysztof Kozlowski <krzk@kernel.org> |
| 11 | |
| 12 | properties: |
| 13 | compatible: |
| 14 | enum: |
| 15 | - samsung,s3fwrn5-i2c |
| 16 | - samsung,s3fwrn82 |
| 17 | |
| 18 | en-gpios: |
| 19 | maxItems: 1 |
| 20 | description: |
| 21 | Output GPIO pin used for enabling/disabling the chip |
| 22 | |
| 23 | interrupts: |
| 24 | maxItems: 1 |
| 25 | |
| 26 | reg: |
| 27 | maxItems: 1 |
| 28 | |
| 29 | clocks: |
| 30 | maxItems: 1 |
| 31 | |
| 32 | wake-gpios: |
| 33 | maxItems: 1 |
| 34 | description: |
| 35 | Output GPIO pin used to enter firmware mode and sleep/wakeup control |
| 36 | |
| 37 | s3fwrn5,en-gpios: |
| 38 | maxItems: 1 |
| 39 | deprecated: true |
| 40 | description: |
| 41 | Use en-gpios |
| 42 | |
| 43 | s3fwrn5,fw-gpios: |
| 44 | maxItems: 1 |
| 45 | deprecated: true |
| 46 | description: |
| 47 | Use wake-gpios |
| 48 | |
| 49 | additionalProperties: false |
| 50 | |
| 51 | required: |
| 52 | - compatible |
| 53 | - en-gpios |
| 54 | - wake-gpios |
| 55 | |
| 56 | allOf: |
| 57 | - if: |
| 58 | properties: |
| 59 | compatible: |
| 60 | contains: |
| 61 | const: samsung,s3fwrn5-i2c |
| 62 | then: |
| 63 | required: |
| 64 | - interrupts |
| 65 | - reg |
| 66 | |
| 67 | examples: |
| 68 | - | |
| 69 | #include <dt-bindings/gpio/gpio.h> |
| 70 | #include <dt-bindings/interrupt-controller/irq.h> |
| 71 | |
| 72 | i2c { |
| 73 | #address-cells = <1>; |
| 74 | #size-cells = <0>; |
| 75 | |
| 76 | s3fwrn5@27 { |
| 77 | compatible = "samsung,s3fwrn5-i2c"; |
| 78 | reg = <0x27>; |
| 79 | |
| 80 | interrupt-parent = <&gpa1>; |
| 81 | interrupts = <3 IRQ_TYPE_EDGE_RISING>; |
| 82 | |
| 83 | en-gpios = <&gpf1 4 GPIO_ACTIVE_HIGH>; |
| 84 | wake-gpios = <&gpj0 2 GPIO_ACTIVE_HIGH>; |
| 85 | |
| 86 | clocks = <&rpmcc 20>; |
| 87 | }; |
| 88 | }; |
| 89 | # UART example on Raspberry Pi |
| 90 | - | |
| 91 | uart0 { |
| 92 | nfc { |
| 93 | compatible = "samsung,s3fwrn82"; |
| 94 | |
| 95 | en-gpios = <&gpio 20 GPIO_ACTIVE_HIGH>; |
| 96 | wake-gpios = <&gpio 16 GPIO_ACTIVE_HIGH>; |
| 97 | |
| 98 | }; |
| 99 | }; |