On Mon, 28 Oct 2024 14:35:43 +0200 Robert Budai <robert.budai@xxxxxxxxxx> wrote: > From: Ramona Gradinariu <ramona.gradinariu@xxxxxxxxxx> > > Document the ADIS16550 device devicetree bindings. What is the difference between the 16550 and 16550w. Need to give an indication here of why the need separate compatibles. > Co-developed-by: Antoniu Miclaus <antoniu.miclaus@xxxxxxxxxx> > Signed-off-by: Antoniu Miclaus <antoniu.miclaus@xxxxxxxxxx> > Signed-off-by: Ramona Gradinariu <ramona.gradinariu@xxxxxxxxxx> > --- > .../bindings/iio/imu/adi,adis16550.yaml | 95 +++++++++++++++++++ > MAINTAINERS | 9 ++ > 2 files changed, 104 insertions(+) > create mode 100644 Documentation/devicetree/bindings/iio/imu/adi,adis16550.yaml > > diff --git a/Documentation/devicetree/bindings/iio/imu/adi,adis16550.yaml b/Documentation/devicetree/bindings/iio/imu/adi,adis16550.yaml > new file mode 100644 > index 000000000000..a4690b39f0bd > --- /dev/null > +++ b/Documentation/devicetree/bindings/iio/imu/adi,adis16550.yaml > @@ -0,0 +1,95 @@ > +# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause) > +%YAML 1.2 > +--- > +$id: http://devicetree.org/schemas/iio/imu/adi,adis16550.yaml# > +$schema: http://devicetree.org/meta-schemas/core.yaml# > + > +title: Analog Devices ADIS16550 and similar IMUs > + > +maintainers: > + - Nuno Sa <nuno.sa@xxxxxxxxxx> > + - Ramona Gradinariu <ramona.gradinariu@xxxxxxxxxx> > + - Antoniu Miclaus <antoniu.miclaus@xxxxxxxxxx> > + > +properties: > + compatible: > + enum: > + - adi,adis16550 > + - adi,adis16550w > + > + reg: > + maxItems: 1 > + > + spi-cpha: true > + > + spi-cpol: true > + > + spi-max-frequency: > + maximum: 15000000 > + > + vdd-supply: true > + > + interrupts: > + maxItems: 1 > + > + reset-gpios: > + description: > + Must be the device tree identifier of the RESET pin. If specified, > + it will be asserted during driver probe. As the line is active low, > + it should be marked GPIO_ACTIVE_LOW. > + maxItems: 1 > + > + clocks: > + maxItems: 1 > + description: If not provided, then the internal clock is used. > + > + adi,sync-mode: > + $ref: /schemas/types.yaml#/definitions/string > + description: | > + Configures the device SYNC pin. > + enum: > + - direct_sync > + - scaled_sync More detail needed on this. I'm not sure why it belongs in DT and can't be controlled based on clock input and requested sampling frequency. > + > +required: > + - compatible > + - reg > + - interrupts > + - spi-cpha > + - spi-cpol > + - spi-max-frequency > + - vdd-supply > + > +allOf: > + - if: > + properties: > + adi,sync-mode: > + enum: [direct_sync, scaled_sync] > + > + then: > + dependencies: > + adi,sync-mode: [ clocks ] > + > + - $ref: /schemas/spi/spi-peripheral-props.yaml# > + > +additionalProperties: false > + > +examples: > + - | > + #include <dt-bindings/interrupt-controller/irq.h> > + spi { > + #address-cells = <1>; > + #size-cells = <0>; > + > + imu@0 { > + compatible = "adi,adis16550"; > + reg = <0>; > + spi-max-frequency = <15000000>; > + spi-cpol; > + spi-cpha; > + vdd-supply = <&vdd>; > + interrupts = <4 IRQ_TYPE_EDGE_FALLING>; > + interrupt-parent = <&gpio>; > + }; > + }; > +... > diff --git a/MAINTAINERS b/MAINTAINERS > index a27407950242..4f45478d271a 100644 > --- a/MAINTAINERS > +++ b/MAINTAINERS > @@ -1411,6 +1411,15 @@ W: https://ez.analog.com/linux-software-drivers > F: Documentation/devicetree/bindings/iio/imu/adi,adis16475.yaml > F: drivers/iio/imu/adis16475.c > > +ANALOG DEVICES INC ADIS16550 DRIVER > +M: Nuno Sa <nuno.sa@xxxxxxxxxx> > +M: Ramona Gradinariu <ramona.gradinariu@xxxxxxxxxx> > +M: Antoniu Miclaus <antoniu.miclaus@xxxxxxxxxx> > +L: linux-iio@xxxxxxxxxxxxxxx > +S: Supported > +W: https://ez.analog.com/linux-software-drivers > +F: Documentation/devicetree/bindings/iio/imu/adi,adis16550.yaml > + > ANALOG DEVICES INC ADM1177 DRIVER > M: Michael Hennerich <Michael.Hennerich@xxxxxxxxxx> > L: linux-hwmon@xxxxxxxxxxxxxxx
