This adds device tree bindings for the Yamaha YAS530 family of magnetometers/compass sensors. Cc: devicetree@xxxxxxxxxxxxxxx Cc: phone-devel@xxxxxxxxxxxxxxx Cc: Andy Shevchenko <andy.shevchenko@xxxxxxxxx> Cc: Jonathan Bakker <xc-racer2@xxxxxxx> Reviewed-by: Rob Herring <robh@xxxxxxxxxx> Signed-off-by: Linus Walleij <linus.walleij@xxxxxxxxxx> --- ChangeLog v4->v5: - Collect Rob's Reviewed-by tag. ChangeLog v3->v4: - Rename the bindings and file yas530 after the first introduced component in the family. - Simplify conditional logic using the if: not: YAML constructions. - Use the possibility to set a property to false to just remvove reset GPIOs and interrupts from variants that do not have them. ChangeLog v2->v3: - Restrict to cover the YAS53x variants, it turns out that YAS529 is a very different component from the others so keep that for a separate document when/if needed. - Rename the file and binding yamaha,53x.yaml - Use - if: clauses to restrict some properties. - Fix some spelling mistakes. - Restrict the nodename to be "magnetometer@[0-9a-f]" ChangeLog v1->v2: - Add Yamaha to the vendor list, I was surprised to find they were not yet listed. --- .../iio/magnetometer/yamaha,yas530.yaml | 112 ++++++++++++++++++ .../devicetree/bindings/vendor-prefixes.yaml | 2 + 2 files changed, 114 insertions(+) create mode 100644 Documentation/devicetree/bindings/iio/magnetometer/yamaha,yas530.yaml diff --git a/Documentation/devicetree/bindings/iio/magnetometer/yamaha,yas530.yaml b/Documentation/devicetree/bindings/iio/magnetometer/yamaha,yas530.yaml new file mode 100644 index 000000000000..4b0ef1ef5445 --- /dev/null +++ b/Documentation/devicetree/bindings/iio/magnetometer/yamaha,yas530.yaml @@ -0,0 +1,112 @@ +# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/iio/magnetometer/yamaha,yas530.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: Yamaha YAS530 family of magnetometer sensors + +maintainers: + - Linus Walleij <linus.walleij@xxxxxxxxxx> + +description: + The Yamaha YAS530 magnetometers is a line of 3-axis magnetometers + first introduced by Yamaha in 2009 with the YAS530. They are successors + of Yamaha's first magnetometer YAS529. Over the years this magnetometer + has been miniaturized and appeared in a number of different variants. + +properties: + $nodename: + pattern: '^magnetometer@[0-9a-f]+$' + + compatible: + items: + - enum: + - yamaha,yas530 + - yamaha,yas532 + - yamaha,yas533 + - yamaha,yas535 + - yamaha,yas536 + - yamaha,yas537 + - yamaha,yas539 + + reg: + maxItems: 1 + + reset-gpios: + maxItems: 1 + description: The YAS530 sensor has a RSTN pin used to reset + the logic inside the sensor. This GPIO line should connect + to that pin and be marked as GPIO_ACTIVE_LOW. + + interrupts: + maxItems: 1 + description: Interrupt for INT pin for interrupt generation. + The polarity, whether the interrupt is active on the rising + or the falling edge, is software-configurable in the hardware. + + vdd-supply: + description: An optional regulator providing core power supply + on the VDD pin, typically 1.8 V or 3.0 V. + + iovdd-supply: + description: An optional regulator providing I/O power supply + for the I2C interface on the IOVDD pin, typically 1.8 V. + + mount-matrix: + description: An optional 3x3 mounting rotation matrix. + +allOf: + - if: + not: + properties: + compatible: + items: + const: yamaha,yas530 + then: + properties: + reset-gpios: false + + - if: + properties: + compatible: + items: + const: yamaha,yas539 + then: + properties: + interrupts: false + +required: + - compatible + - reg + +additionalProperties: false + +examples: + - | + #include <dt-bindings/interrupt-controller/irq.h> + #include <dt-bindings/gpio/gpio.h> + i2c-0 { + #address-cells = <1>; + #size-cells = <0>; + + magnetometer@2e { + compatible = "yamaha,yas530"; + reg = <0x2e>; + vdd-supply = <&ldo1_reg>; + iovdd-supply = <&ldo2_reg>; + reset-gpios = <&gpio6 12 GPIO_ACTIVE_LOW>; + interrupts = <&gpio6 13 IRQ_TYPE_EDGE_RISING>; + }; + }; + + i2c-1 { + #address-cells = <1>; + #size-cells = <0>; + + magnetometer@2e { + compatible = "yamaha,yas539"; + reg = <0x2e>; + vdd-supply = <&ldo1_reg>; + }; + }; diff --git a/Documentation/devicetree/bindings/vendor-prefixes.yaml b/Documentation/devicetree/bindings/vendor-prefixes.yaml index 2735be1a8470..0340674c72bd 100644 --- a/Documentation/devicetree/bindings/vendor-prefixes.yaml +++ b/Documentation/devicetree/bindings/vendor-prefixes.yaml @@ -1210,6 +1210,8 @@ patternProperties: description: Shenzhen Xunlong Software CO.,Limited "^xylon,.*": description: Xylon + "^yamaha,.*": + description: Yamaha Corporation "^ylm,.*": description: Shenzhen Yangliming Electronic Technology Co., Ltd. "^yna,.*": -- 2.26.2
