forked from Minki/linux
dt-bindings: nfc: ti,trf7970a: convert to dtschema
Convert the TI TRF7970A NFC to DT schema format. Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com> Link: https://lore.kernel.org/r/20211011073934.34340-8-krzysztof.kozlowski@canonical.com Signed-off-by: Rob Herring <robh@kernel.org>
This commit is contained in:
Krzysztof Kozlowski
Rob Herring
parent
19951f4ced
commit
3470d69bfd
98
Documentation/devicetree/bindings/net/nfc/ti,trf7970a.yaml
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98
Documentation/devicetree/bindings/net/nfc/ti,trf7970a.yaml
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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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$id: http://devicetree.org/schemas/net/nfc/ti,trf7970a.yaml#
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$schema: http://devicetree.org/meta-schemas/core.yaml#
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title: Texas Instruments TRF7970A RFID/NFC/15693 Transceiver
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maintainers:
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- Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com>
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- Mark Greer <mgreer@animalcreek.com>
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properties:
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compatible:
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const: ti,trf7970a
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autosuspend-delay:
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$ref: /schemas/types.yaml#/definitions/uint32
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description: |
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Specify autosuspend delay in milliseconds.
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clock-frequency:
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description: |
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Set to specify that the input frequency to the trf7970a is 13560000Hz or
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27120000Hz
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en2-rf-quirk:
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type: boolean
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description: |
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Specify that the trf7970a being used has the "EN2 RF" erratum
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interrupts:
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maxItems: 1
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irq-status-read-quirk:
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type: boolean
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description: |
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Specify that the trf7970a being used has the "IRQ Status Read" erratum
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reg:
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maxItems: 1
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spi-max-frequency: true
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ti,enable-gpios:
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minItems: 1
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maxItems: 2
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description: |
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One or two GPIO entries used for 'EN' and 'EN2' pins on the TRF7970A. EN2
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is optional.
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vdd-io-supply:
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description: |
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Regulator specifying voltage for VDD-IO
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vin-supply:
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description: |
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Regulator for supply voltage to VIN pin
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required:
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- compatible
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- interrupts
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- reg
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- spi-max-frequency
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- ti,enable-gpios
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- vin-supply
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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@0 {
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compatible = "ti,trf7970a";
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reg = <0>;
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pinctrl-names = "default";
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pinctrl-0 = <&trf7970a_default>;
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spi-max-frequency = <2000000>;
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interrupt-parent = <&gpio2>;
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interrupts = <14 0>;
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ti,enable-gpios = <&gpio2 2 GPIO_ACTIVE_HIGH>,
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<&gpio2 5 GPIO_ACTIVE_HIGH>;
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vin-supply = <&ldo3_reg>;
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vdd-io-supply = <&ldo2_reg>;
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autosuspend-delay = <30000>;
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irq-status-read-quirk;
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en2-rf-quirk;
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clock-frequency = <27120000>;
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};
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};
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@ -1,43 +0,0 @@
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* Texas Instruments TRF7970A RFID/NFC/15693 Transceiver
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Required properties:
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- compatible: Should be "ti,trf7970a".
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- spi-max-frequency: Maximum SPI frequency (<= 2000000).
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- interrupts: A single interrupt specifier.
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- ti,enable-gpios: One or two GPIO entries used for 'EN' and 'EN2' pins on the
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TRF7970A. EN2 is optional.
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- vin-supply: Regulator for supply voltage to VIN pin
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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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- autosuspend-delay: Specify autosuspend delay in milliseconds.
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- irq-status-read-quirk: Specify that the trf7970a being used has the
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"IRQ Status Read" erratum.
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- en2-rf-quirk: Specify that the trf7970a being used has the "EN2 RF"
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erratum.
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- vdd-io-supply: Regulator specifying voltage for vdd-io
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- clock-frequency: Set to specify that the input frequency to the trf7970a is 13560000Hz or 27120000Hz
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Example (for ARM-based BeagleBone with TRF7970A on SPI1):
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&spi1 {
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nfc@0 {
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compatible = "ti,trf7970a";
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reg = <0>;
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pinctrl-names = "default";
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pinctrl-0 = <&trf7970a_default>;
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spi-max-frequency = <2000000>;
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interrupt-parent = <&gpio2>;
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interrupts = <14 0>;
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ti,enable-gpios = <&gpio2 2 GPIO_ACTIVE_HIGH>,
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<&gpio2 5 GPIO_ACTIVE_HIGH>;
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vin-supply = <&ldo3_reg>;
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vdd-io-supply = <&ldo2_reg>;
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autosuspend-delay = <30000>;
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irq-status-read-quirk;
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en2-rf-quirk;
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clock-frequency = <27120000>;
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};
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};
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@ -18781,7 +18781,7 @@ M: Mark Greer <mgreer@animalcreek.com>
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L: linux-wireless@vger.kernel.org
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L: linux-nfc@lists.01.org (subscribers-only)
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S: Supported
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F: Documentation/devicetree/bindings/net/nfc/trf7970a.txt
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F: Documentation/devicetree/bindings/net/nfc/ti,trf7970a.yaml
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F: drivers/nfc/trf7970a.c
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TI TSC2046 ADC DRIVER
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