| # SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause |
| %YAML 1.2 |
| --- |
| $id: http://devicetree.org/schemas/net/nfc/samsung,s3fwrn5.yaml# |
| $schema: http://devicetree.org/meta-schemas/core.yaml# |
| |
| title: Samsung S3FWRN5 NCI NFC Controller |
| |
| maintainers: |
| - Krzysztof Kozlowski <krzk@kernel.org> |
| |
| properties: |
| compatible: |
| enum: |
| - samsung,s3fwrn5-i2c |
| - samsung,s3fwrn82 |
| |
| en-gpios: |
| maxItems: 1 |
| description: |
| Output GPIO pin used for enabling/disabling the chip |
| |
| interrupts: |
| maxItems: 1 |
| |
| reg: |
| maxItems: 1 |
| |
| clocks: |
| maxItems: 1 |
| |
| wake-gpios: |
| maxItems: 1 |
| description: |
| Output GPIO pin used to enter firmware mode and sleep/wakeup control |
| |
| s3fwrn5,en-gpios: |
| maxItems: 1 |
| deprecated: true |
| description: |
| Use en-gpios |
| |
| s3fwrn5,fw-gpios: |
| maxItems: 1 |
| deprecated: true |
| description: |
| Use wake-gpios |
| |
| additionalProperties: false |
| |
| required: |
| - compatible |
| - en-gpios |
| - wake-gpios |
| |
| allOf: |
| - if: |
| properties: |
| compatible: |
| contains: |
| const: samsung,s3fwrn5-i2c |
| then: |
| required: |
| - interrupts |
| - reg |
| |
| examples: |
| - | |
| #include <dt-bindings/gpio/gpio.h> |
| #include <dt-bindings/interrupt-controller/irq.h> |
| |
| i2c4 { |
| #address-cells = <1>; |
| #size-cells = <0>; |
| |
| s3fwrn5@27 { |
| compatible = "samsung,s3fwrn5-i2c"; |
| reg = <0x27>; |
| |
| interrupt-parent = <&gpa1>; |
| interrupts = <3 IRQ_TYPE_EDGE_RISING>; |
| |
| en-gpios = <&gpf1 4 GPIO_ACTIVE_HIGH>; |
| wake-gpios = <&gpj0 2 GPIO_ACTIVE_HIGH>; |
| |
| clocks = <&rpmcc 20>; |
| }; |
| }; |
| # UART example on Raspberry Pi |
| - | |
| uart0 { |
| nfc { |
| compatible = "samsung,s3fwrn82"; |
| |
| en-gpios = <&gpio 20 GPIO_ACTIVE_HIGH>; |
| wake-gpios = <&gpio 16 GPIO_ACTIVE_HIGH>; |
| |
| }; |
| }; |
