Commit 2212a852 authored Dec 09, 2013 by Elie De Brauwer Committed by Wolfram Sang Dec 12, 2013

i2c: mux: Inherit retry count and timeout from parent for muxed bus

If a muxed i2c bus gets created the default retry count and
timeout of the muxed bus is zero. Hence it it possible that you
end up with a situation where the parent controller sets a default
retry count and timeout which gets applied and used while the muxed
bus (using the same controller) has a default retry count of zero
and a default timeout of 1s (set in i2c_add_adapter()). This can be
solved by initializing the retry count and timeout of the muxed
bus with the values used by the the parent at creation time.

Signed-off-by: Elie De Brauwer <eliedebrauwer@gmail.com>
Signed-off-by: Wolfram Sang <wsa@the-dreams.de>

parent 374b1057

drivers/i2c/i2c-mux.c

+2 −0

Original line number	Diff line number	Diff line
		@@ -139,6 +139,8 @@ struct i2c_adapter i2c_add_mux_adapter(struct i2c_adapter parent,
		priv->adap.algo = &priv->algo;
		priv->adap.algo_data = priv;
		priv->adap.dev.parent = &parent->dev;
		priv->adap.retries = parent->retries;
		priv->adap.timeout = parent->timeout;

		/* Sanity check on class */
		if (i2c_mux_parent_classes(parent) & class)

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