| * Linear Technology / Analog Devices I2C bus switch |
| |
| Required Properties: |
| |
| - compatible: Must contain one of the following. |
| "lltc,ltc4305", "lltc,ltc4306" |
| - reg: The I2C address of the device. |
| |
| The following required properties are defined externally: |
| |
| - Standard I2C mux properties. See i2c-mux.yaml in this directory. |
| - I2C child bus nodes. See i2c-mux.yaml in this directory. |
| |
| Optional Properties: |
| |
| - enable-gpios: Reference to the GPIO connected to the enable input. |
| - i2c-mux-idle-disconnect: Boolean; if defined, 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. |
| - gpio-controller: Marks the device node as a GPIO Controller. |
| - #gpio-cells: Should be two. The first cell is the pin number and |
| the second cell is used to specify flags. |
| See ../gpio/gpio.txt for more information. |
| - ltc,downstream-accelerators-enable: Enables the rise time accelerators |
| on the downstream port. |
| - ltc,upstream-accelerators-enable: Enables the rise time accelerators |
| on the upstream port. |
| |
| Example: |
| |
| ltc4306: i2c-mux@4a { |
| compatible = "lltc,ltc4306"; |
| #address-cells = <1>; |
| #size-cells = <0>; |
| reg = <0x4a>; |
| |
| gpio-controller; |
| #gpio-cells = <2>; |
| |
| i2c@0 { |
| #address-cells = <1>; |
| #size-cells = <0>; |
| reg = <0>; |
| |
| eeprom@50 { |
| compatible = "atmel,24c02"; |
| reg = <0x50>; |
| }; |
| }; |
| |
| i2c@1 { |
| #address-cells = <1>; |
| #size-cells = <0>; |
| reg = <1>; |
| |
| eeprom@50 { |
| compatible = "atmel,24c02"; |
| reg = <0x50>; |
| }; |
| }; |
| }; |