| # Copyright (c) 2020, Innoseis BV |
| # SPDX-License-Identifier: Apache-2.0 |
| |
| # Common fields for TI TCA954X I2C mux family |
| |
| description: | |
| TCA954x I2C switch |
| |
| Each channel is represented by a separate devicetree child node. |
| The channel node can then be used as a standard i2c bus controller |
| like in the following simplified example: |
| |
| /* The tca954x node must be a child of an i2c controller */ |
| mux: tca9546a@77 { |
| compatible = "ti,tca9546a"; |
| reg = <0x77>; |
| status = "okay"; |
| #address-cells = <1>; |
| #size-cells = <0>; |
| reset-gpios = <&gpio5 3 GPIO_ACTIVE_LOW>; |
| |
| mux_i2c@0 { |
| compatible = "ti,tca9546a-channel"; |
| reg = <0>; |
| #address-cells = <1>; |
| #size-cells = <0>; |
| |
| temp_sens_0: tmp11x@49 { |
| compatible = "ti,tmp11x"; |
| reg = <0x49>; |
| }; |
| }; |
| |
| mux_i2c@1 { |
| compatible = "ti,tca9546a-channel"; |
| reg = <1>; |
| #address-cells = <1>; |
| #size-cells = <0>; |
| |
| temp_sens_1: tmp11x@49 { |
| compatible = "ti,tmp11x"; |
| reg = <0x49>; |
| }; |
| }; |
| }; |
| |
| include: [i2c-device.yaml] |
| |
| properties: |
| reset-gpios: |
| type: phandle-array |
| description: | |
| GPIO connected to the controller RESET pin. This pin is active-low. |
| |
| i2c-mux-idle-disconnect: |
| type: boolean |
| description: | |
| Forces mux to disconnect all children in idle state. This is |
| necessary for example, if there are several multiplexers on the bus and |
| the devices behind them use same I2C addresses. |
| |
| child-binding: |
| description: TCA954x I2C switch channel node |
| include: [i2c-controller.yaml] |
| on-bus: i2c |
