On 10/18/2012 08:13 AM, Maxime Ripard wrote:

Allow the i2c-mux-gpio to be used by a device tree enabled device. The
bindings are inspired by the one found in the i2c-mux-pinctrl driver.

+Optional properties:
+- idle-state: value to set to the muxer when idle. When no value is
+  given, it defaults to the first value in the array.

That's inconsistent with the following text that appears later (and
describes what the driver actually does):

+If an idle state is defined, using the idle-state (optional) property,
+whenever an access is not being made to a device on a child bus, the
+idle value will be programmed into the GPIOs.
+
+If an idle state is not defined, the most recently used value will be
+left programmed into hardware whenever no access is being made of a
+device on a child bus.