| Tom Rini | 53633a8 | 2024-02-29 12:33:36 -0500 | [diff] [blame] | 1 | # SPDX-License-Identifier: GPL-2.0 OR BSD-2-Clause |
| 2 | %YAML 1.2 |
| 3 | --- |
| 4 | $id: http://devicetree.org/schemas/iio/dac/lltc,ltc2632.yaml# |
| 5 | $schema: http://devicetree.org/meta-schemas/core.yaml# |
| 6 | |
| 7 | title: Linear Technology LTC263x 12-/10-/8-Bit Rail-to-Rail DAC |
| 8 | |
| 9 | maintainers: |
| 10 | - Michael Hennerich <michael.hennerich@analog.com> |
| 11 | |
| 12 | description: | |
| 13 | Bindings for the Linear Technology LTC2632/2634/2636 DAC |
| 14 | Datasheet can be found here: https://www.analog.com/media/en/technical-documentation/data-sheets/LTC263[246].pdf |
| 15 | |
| 16 | properties: |
| 17 | compatible: |
| 18 | enum: |
| 19 | - lltc,ltc2632-l12 |
| 20 | - lltc,ltc2632-l10 |
| 21 | - lltc,ltc2632-l8 |
| 22 | - lltc,ltc2632-h12 |
| 23 | - lltc,ltc2632-h10 |
| 24 | - lltc,ltc2632-h8 |
| 25 | - lltc,ltc2634-l12 |
| 26 | - lltc,ltc2634-l10 |
| 27 | - lltc,ltc2634-l8 |
| 28 | - lltc,ltc2634-h12 |
| 29 | - lltc,ltc2634-h10 |
| 30 | - lltc,ltc2634-h8 |
| 31 | - lltc,ltc2636-l12 |
| 32 | - lltc,ltc2636-l10 |
| 33 | - lltc,ltc2636-l8 |
| 34 | - lltc,ltc2636-h12 |
| 35 | - lltc,ltc2636-h10 |
| 36 | - lltc,ltc2636-h8 |
| 37 | |
| 38 | reg: |
| 39 | maxItems: 1 |
| 40 | |
| 41 | spi-max-frequency: |
| 42 | maximum: 2000000 |
| 43 | |
| 44 | vref-supply: |
| 45 | description: |
| 46 | Phandle to the external reference voltage supply. This should |
| 47 | only be set if there is an external reference voltage connected to the VREF |
| 48 | pin. If the property is not set the internal reference is used. |
| 49 | |
| 50 | required: |
| 51 | - compatible |
| 52 | - reg |
| 53 | |
| 54 | additionalProperties: false |
| 55 | |
| 56 | examples: |
| 57 | - | |
| 58 | vref: regulator-vref { |
| 59 | compatible = "regulator-fixed"; |
| 60 | regulator-name = "vref-ltc2632"; |
| 61 | regulator-min-microvolt = <1250000>; |
| 62 | regulator-max-microvolt = <1250000>; |
| 63 | regulator-always-on; |
| 64 | }; |
| 65 | |
| 66 | spi { |
| 67 | #address-cells = <1>; |
| 68 | #size-cells = <0>; |
| 69 | |
| 70 | dac@0 { |
| 71 | compatible = "lltc,ltc2632-l12"; |
| 72 | reg = <0>; /* CS0 */ |
| 73 | spi-max-frequency = <1000000>; |
| 74 | vref-supply = <&vref>; |
| 75 | }; |
| 76 | }; |
| 77 | ... |