62 lines
1.6 KiB
Plaintext
Executable file
62 lines
1.6 KiB
Plaintext
Executable file
* 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.txt in this directory.
|
|
- I2C child bus nodes. See i2c-mux.txt 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 = "at,24c02";
|
|
reg = <0x50>;
|
|
};
|
|
};
|
|
|
|
i2c@1 {
|
|
#address-cells = <1>;
|
|
#size-cells = <0>;
|
|
reg = <1>;
|
|
|
|
eeprom@50 {
|
|
compatible = "at,24c02";
|
|
reg = <0x50>;
|
|
};
|
|
};
|
|
};
|