| # SPDX-License-Identifier: GPL-2.0 |
| %YAML 1.2 |
| --- |
| $id: http://devicetree.org/schemas/i2c/i2c-mux-pca954x.yaml# |
| $schema: http://devicetree.org/meta-schemas/core.yaml# |
| |
| title: NXP PCA954x I2C bus switch |
| |
| maintainers: |
| - Laurent Pinchart <laurent.pinchart@ideasonboard.com> |
| |
| description: |
| The binding supports NXP PCA954x and PCA984x I2C mux/switch devices. |
| |
| allOf: |
| - $ref: /schemas/i2c/i2c-mux.yaml# |
| |
| properties: |
| compatible: |
| oneOf: |
| - enum: |
| - nxp,pca9540 |
| - nxp,pca9542 |
| - nxp,pca9543 |
| - nxp,pca9544 |
| - nxp,pca9545 |
| - nxp,pca9546 |
| - nxp,pca9547 |
| - nxp,pca9548 |
| - nxp,pca9846 |
| - nxp,pca9847 |
| - nxp,pca9848 |
| - nxp,pca9849 |
| - items: |
| - const: nxp,pca9646 |
| - const: nxp,pca9546 |
| |
| reg: |
| maxItems: 1 |
| |
| interrupts: |
| maxItems: 1 |
| |
| "#interrupt-cells": |
| const: 2 |
| |
| interrupt-controller: true |
| |
| reset-gpios: |
| maxItems: 1 |
| |
| 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. |
| |
| idle-state: |
| description: if present, overrides i2c-mux-idle-disconnect |
| $ref: /schemas/mux/mux-controller.yaml#/properties/idle-state |
| |
| required: |
| - compatible |
| - reg |
| |
| unevaluatedProperties: false |
| |
| examples: |
| - | |
| #include <dt-bindings/interrupt-controller/irq.h> |
| |
| i2c { |
| #address-cells = <1>; |
| #size-cells = <0>; |
| |
| i2c-mux@74 { |
| compatible = "nxp,pca9548"; |
| #address-cells = <1>; |
| #size-cells = <0>; |
| reg = <0x74>; |
| |
| interrupt-parent = <&ipic>; |
| interrupts = <17 IRQ_TYPE_LEVEL_LOW>; |
| interrupt-controller; |
| #interrupt-cells = <2>; |
| |
| i2c@2 { |
| #address-cells = <1>; |
| #size-cells = <0>; |
| reg = <2>; |
| |
| eeprom@54 { |
| compatible = "atmel,24c08"; |
| reg = <0x54>; |
| }; |
| }; |
| |
| i2c@4 { |
| #address-cells = <1>; |
| #size-cells = <0>; |
| reg = <4>; |
| |
| rtc@51 { |
| compatible = "nxp,pcf8563"; |
| reg = <0x51>; |
| }; |
| }; |
| }; |
| }; |
| ... |
