162306a36Sopenharmony_ci# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause) 262306a36Sopenharmony_ci%YAML 1.2 362306a36Sopenharmony_ci--- 462306a36Sopenharmony_ci$id: http://devicetree.org/schemas/i2c/i2c-gate.yaml# 562306a36Sopenharmony_ci$schema: http://devicetree.org/meta-schemas/core.yaml# 662306a36Sopenharmony_ci 762306a36Sopenharmony_cititle: Common i2c gate properties 862306a36Sopenharmony_ci 962306a36Sopenharmony_cimaintainers: 1062306a36Sopenharmony_ci - Peter Rosin <peda@axentia.se> 1162306a36Sopenharmony_ci 1262306a36Sopenharmony_cidescription: | 1362306a36Sopenharmony_ci An i2c gate is useful to e.g. reduce the digital noise for RF tuners connected 1462306a36Sopenharmony_ci to the i2c bus. Gates are similar to arbitrators in that you need to perform 1562306a36Sopenharmony_ci some kind of operation to access the i2c bus past the arbitrator/gate, but 1662306a36Sopenharmony_ci there are no competing masters to consider for gates and therefore there is 1762306a36Sopenharmony_ci no arbitration happening for gates. 1862306a36Sopenharmony_ci 1962306a36Sopenharmony_ciallOf: 2062306a36Sopenharmony_ci - $ref: /schemas/i2c/i2c-controller.yaml 2162306a36Sopenharmony_ci 2262306a36Sopenharmony_ciproperties: 2362306a36Sopenharmony_ci $nodename: 2462306a36Sopenharmony_ci const: i2c-gate 2562306a36Sopenharmony_ci 2662306a36Sopenharmony_ciadditionalProperties: true 2762306a36Sopenharmony_ci 2862306a36Sopenharmony_ciexamples: 2962306a36Sopenharmony_ci - | 3062306a36Sopenharmony_ci i2c-gate { 3162306a36Sopenharmony_ci #address-cells = <1>; 3262306a36Sopenharmony_ci #size-cells = <0>; 3362306a36Sopenharmony_ci ak8975@c { 3462306a36Sopenharmony_ci compatible = "asahi-kasei,ak8975"; 3562306a36Sopenharmony_ci reg = <0x0c>; 3662306a36Sopenharmony_ci }; 3762306a36Sopenharmony_ci }; 3862306a36Sopenharmony_ci... 39