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