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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>
wifi-calibration
Elie De Brauwer 2013-12-09 19:48:28 +01:00 committed by Wolfram Sang
parent 374b105797
commit 2212a8529e
1 changed files with 2 additions and 0 deletions
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2
drivers/i2c/i2c-mux.c
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@ -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)