[RFC PATCH] i2c: use parent adapter quirks in mux

[Alexander Sverdlin <alexander.sverdlin-xNZwKgViW5gAvxtiuMwx3w@public.gmane.org>]

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-xNZwKgViW5gAvxtiuMwx3w@public.gmane.org>
Signed-off-by: Alexander Sverdlin <alexander.sverdlin-xNZwKgViW5gAvxtiuMwx3w@public.gmane.org>
---
 drivers/i2c/i2c-mux.c |    1 +
 1 files changed, 1 insertions(+), 0 deletions(-)

diff --git a/drivers/i2c/i2c-mux.c b/drivers/i2c/i2c-mux.c
index 4bcefdb..6997493 100644
--- a/drivers/i2c/i2c-mux.c
+++ b/drivers/i2c/i2c-mux.c
@@ -141,6 +141,7 @@ 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)