| 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/i2c/i2c-gate.yaml# |
| 5 | $schema: http://devicetree.org/meta-schemas/core.yaml# |
| 6 | |
| 7 | title: Common i2c gate properties |
| 8 | |
| 9 | maintainers: |
| 10 | - Peter Rosin <peda@axentia.se> |
| 11 | |
| 12 | description: | |
| 13 | An i2c gate is useful to e.g. reduce the digital noise for RF tuners connected |
| 14 | to the i2c bus. Gates are similar to arbitrators in that you need to perform |
| 15 | some kind of operation to access the i2c bus past the arbitrator/gate, but |
| 16 | there are no competing masters to consider for gates and therefore there is |
| 17 | no arbitration happening for gates. |
| 18 | |
| 19 | allOf: |
| 20 | - $ref: /schemas/i2c/i2c-controller.yaml |
| 21 | |
| 22 | properties: |
| 23 | $nodename: |
| 24 | const: i2c-gate |
| 25 | |
| 26 | additionalProperties: true |
| 27 | |
| 28 | examples: |
| 29 | - | |
| 30 | i2c-gate { |
| 31 | #address-cells = <1>; |
| 32 | #size-cells = <0>; |
| 33 | ak8975@c { |
| 34 | compatible = "asahi-kasei,ak8975"; |
| 35 | reg = <0x0c>; |
| 36 | }; |
| 37 | }; |
| 38 | ... |