| # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) |
| %YAML 1.2 |
| --- |
| $id: http://devicetree.org/schemas/gnss/brcm,bcm4751.yaml# |
| $schema: http://devicetree.org/meta-schemas/core.yaml# |
| |
| title: Broadcom BCM4751 family GNSS Receiver Device Tree Bindings |
| |
| maintainers: |
| - Johan Hovold <johan@kernel.org> |
| - Linus Walleij <linus.walleij@linaro.org> |
| |
| description: |
| Broadcom GPS chips can be used over the UART or I2C bus. The UART |
| bus requires CTS/RTS support. The number of the capsule is more |
| elaborate than the compatibles BCM4751 may be printed |
| BCM4751IFBG for example. |
| |
| allOf: |
| - $ref: gnss-common.yaml# |
| |
| properties: |
| compatible: |
| enum: |
| - brcm,bcm4751 |
| - brcm,bcm4752 |
| - brcm,bcm4753 |
| |
| reg: |
| description: |
| The I2C Address, not required on UART buses. |
| |
| vdd-auxin-supply: |
| description: |
| Main voltage supply, pin name VDD_AUXIN, typically connected |
| directly to a battery such as LiIon 3.8V battery or a 2.6V supply. |
| |
| vddio-supply: |
| description: |
| IO voltage supply, pin name VDDIO, typically 1.8V |
| |
| reset-gpios: |
| maxItems: 1 |
| description: An optional active low reset line, should be flagged with |
| GPIO_ACTIVE_LOW. |
| |
| enable-gpios: |
| description: Enable GPIO line, connected to pins named REGPU or NSTANDBY. |
| If the line is active low such as NSTANDBY, it should be tagged |
| GPIO_ACTIVE_LOW. |
| |
| required: |
| - compatible |
| - enable-gpios |
| |
| unevaluatedProperties: false |
| |
| examples: |
| - | |
| #include <dt-bindings/gpio/gpio.h> |
| serial { |
| gnss { |
| compatible = "brcm,bcm4751"; |
| vdd-auxin-supply = <&vbat>; |
| reset-gpios = <&gpio0 15 GPIO_ACTIVE_LOW>; |
| enable-gpios = <&gpio0 16 GPIO_ACTIVE_HIGH>; |
| current-speed = <38400>; |
| }; |
| }; |
