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dt-bindings: nfc: marvell,nci: convert to dtschema
Convert the Marvell NCI NFC controller to DT schema format. Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com> Link: https://lore.kernel.org/r/20211011073934.34340-9-krzysztof.kozlowski@canonical.com Signed-off-by: Rob Herring <robh@kernel.org>
This commit is contained in:
Krzysztof Kozlowski
Rob Herring
parent
3470d69bfd
commit
a997377a43
170
Documentation/devicetree/bindings/net/nfc/marvell,nci.yaml
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170
Documentation/devicetree/bindings/net/nfc/marvell,nci.yaml
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@ -0,0 +1,170 @@
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# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
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%YAML 1.2
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---
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$id: http://devicetree.org/schemas/net/nfc/marvell,nci.yaml#
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$schema: http://devicetree.org/meta-schemas/core.yaml#
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title: Marvell International Ltd. NCI NFC controller
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maintainers:
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- Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com>
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properties:
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compatible:
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enum:
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- marvell,nfc-i2c
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- marvell,nfc-spi
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- marvell,nfc-uart
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hci-muxed:
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type: boolean
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description: |
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Specifies that the chip is muxing NCI over HCI frames
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interrupts:
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maxItems: 1
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reg:
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maxItems: 1
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reset-n-io:
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$ref: "/schemas/types.yaml#/definitions/phandle-array"
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maxItems: 1
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description: |
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Output GPIO pin used to reset the chip (active low)
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i2c-int-falling:
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type: boolean
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description: |
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For I2C type of connection. Specifies that the chip read event shall be
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trigged on falling edge.
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i2c-int-rising:
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type: boolean
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description: |
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For I2C type of connection. Specifies that the chip read event shall be
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trigged on rising edge.
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break-control:
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type: boolean
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description: |
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For UART type of connection. Specifies that the chip needs specific break
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management.
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flow-control:
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type: boolean
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description: |
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For UART type of connection. Specifies that the chip is using RTS/CTS.
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spi-cpha: true
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spi-cpol: true
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spi-max-frequency: true
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required:
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- compatible
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allOf:
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- if:
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properties:
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compatible:
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contains:
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const: marvell,nfc-i2c
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then:
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properties:
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break-control: false
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flow-control: false
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spi-cpha: false
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spi-cpol: false
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spi-max-frequency: false
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required:
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- reg
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- if:
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properties:
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compatible:
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contains:
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const: marvell,nfc-spi
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then:
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properties:
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break-control: false
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flow-control: false
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i2c-int-falling: false
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i2c-int-rising: false
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required:
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- reg
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- if:
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properties:
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compatible:
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contains:
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const: marvell,nfc-uart
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then:
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properties:
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i2c-int-falling: false
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i2c-int-rising: false
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interrupts: false
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spi-cpha: false
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spi-cpol: false
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spi-max-frequency: false
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reg: false
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additionalProperties: false
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examples:
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- |
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#include <dt-bindings/gpio/gpio.h>
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#include <dt-bindings/interrupt-controller/irq.h>
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i2c {
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#address-cells = <1>;
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#size-cells = <0>;
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nfc@8 {
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compatible = "marvell,nfc-i2c";
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reg = <0x8>;
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interrupt-parent = <&gpio3>;
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interrupts = <21 IRQ_TYPE_EDGE_RISING>;
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i2c-int-rising;
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reset-n-io = <&gpio3 19 GPIO_ACTIVE_HIGH>;
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};
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};
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- |
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#include <dt-bindings/gpio/gpio.h>
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#include <dt-bindings/interrupt-controller/irq.h>
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spi {
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#address-cells = <1>;
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#size-cells = <0>;
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nfc@0 {
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compatible = "marvell,nfc-spi";
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reg = <0>;
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spi-max-frequency = <3000000>;
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spi-cpha;
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spi-cpol;
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interrupt-parent = <&gpio1>;
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interrupts = <17 IRQ_TYPE_EDGE_RISING>;
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reset-n-io = <&gpio3 19 GPIO_ACTIVE_HIGH>;
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};
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};
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- |
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#include <dt-bindings/gpio/gpio.h>
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uart {
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nfc {
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compatible = "marvell,nfc-uart";
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reset-n-io = <&gpio3 16 GPIO_ACTIVE_HIGH>;
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hci-muxed;
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flow-control;
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};
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};
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@ -1,84 +0,0 @@
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* Marvell International Ltd. NCI NFC Controller
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Required properties:
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- compatible: Should be:
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- "marvell,nfc-uart" or "mrvl,nfc-uart" for UART devices
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- "marvell,nfc-i2c" for I2C devices
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- "marvell,nfc-spi" for SPI devices
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Optional SoC specific properties:
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- pinctrl-names: Contains only one value - "default".
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- pintctrl-0: Specifies the pin control groups used for this controller.
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- reset-n-io: Output GPIO pin used to reset the chip (active low).
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- hci-muxed: Specifies that the chip is muxing NCI over HCI frames.
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Optional UART-based chip specific properties:
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- flow-control: Specifies that the chip is using RTS/CTS.
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- break-control: Specifies that the chip needs specific break management.
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Optional I2C-based chip specific properties:
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- i2c-int-falling: Specifies that the chip read event shall be trigged on
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falling edge.
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- i2c-int-rising: Specifies that the chip read event shall be trigged on
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rising edge.
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Example (for ARM-based BeagleBoard Black with 88W8887 on UART5):
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&uart5 {
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nfcmrvluart: nfcmrvluart@5 {
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compatible = "marvell,nfc-uart";
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reset-n-io = <&gpio3 16 0>;
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hci-muxed;
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flow-control;
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}
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};
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Example (for ARM-based BeagleBoard Black with 88W8887 on I2C1):
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&i2c1 {
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clock-frequency = <400000>;
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nfcmrvli2c0: i2c@1 {
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compatible = "marvell,nfc-i2c";
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reg = <0x8>;
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/* I2C INT configuration */
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interrupt-parent = <&gpio3>;
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interrupts = <21 0>;
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/* I2C INT trigger configuration */
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i2c-int-rising;
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/* Reset IO */
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reset-n-io = <&gpio3 19 0>;
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};
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};
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Example (for ARM-based BeagleBoard Black on SPI0):
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&spi0 {
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mrvlnfcspi0: spi@0 {
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compatible = "marvell,nfc-spi";
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reg = <0>;
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/* SPI Bus configuration */
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spi-max-frequency = <3000000>;
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spi-cpha;
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spi-cpol;
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/* SPI INT configuration */
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interrupt-parent = <&gpio1>;
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interrupts = <17 0>;
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/* Reset IO */
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reset-n-io = <&gpio3 19 0>;
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};
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};
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