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Re: [PATCH v5 2/3] netdev/of/phy: Add MDIO bus multiplexer support.

To: David Miller <>
Subject: Re: [PATCH v5 2/3] netdev/of/phy: Add MDIO bus multiplexer support.
From: David Daney <>
Date: Sat, 21 Apr 2012 14:25:51 -0700
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On 04/21/2012 12:32 PM, David Miller wrote:
From: David Daney<>
Date: Wed, 18 Apr 2012 16:20:53 -0700

+config MDIO_BUS_MUX
+       tristate
+       help
+         This module provides a driver framework for MDIO bus
+         multiplexers which connect one of several child MDIO busses
+         to a parent bus.  Switching between child busses is done by
+         device specific drivers.
This driver uses OF and OF_MDIO, and therefore need dependencies upon
them.  Otherwise it can be enabled in configurations which will result
in build failures.

Note that this symbol cannot be selected by the user, only indirectly via the MDIO_BUS_MUX_GPIO symbol (in patch 3/3) which has the proper dependencies.

If we were to specify the dependencies in both places, we gain nothing other 
than duplication of information.

However, if you insist, I will of course add it here too.

David Daney

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