i2c: use parent adapter quirks in mux

commit dc362d50ba94eaf2b1f11eecd81eb1d040d2d6e6 upstream.

Inherit parent adapter quirks in MUX in case the devices on the multiplexed
buses are interested in the adapter limitations.

Signed-off-by: Łukasz Gemborowski <lukasz.gemborowski@nokia.com>
Signed-off-by: Alexander Sverdlin <alexander.sverdlin@nokia.com>
Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
Fixes: b7f625840267b1 ("i2c: add quirk checks to core")
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/drivers/i2c/i2c-mux.c b/drivers/i2c/i2c-mux.c
index 98dd5d4..2ba7c0f 100644 (file)
--- a/drivers/i2c/i2c-mux.c
+++ b/drivers/i2c/i2c-mux.c
@@ -144,6 +144,7 @@ struct i2c_adapter *i2c_add_mux_adapter(struct i2c_adapter *parent,
        priv->adap.dev.parent = &parent->dev;
        priv->adap.retries = parent->retries;
        priv->adap.timeout = parent->timeout;
+       priv->adap.quirks = parent->quirks;
 
        /* Sanity check on class */
        if (i2c_mux_parent_classes(parent) & class)