linux-kernel - Re: [PATCH] clk: add table lookup to mux

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Date:	Wed, 20 Mar 2013 11:40:18 +0200
From:	Peter De Schrijver <pdeschrijver@...dia.com>
To:	Mike Turquette <mturquette@...aro.org>
CC:	"linux-tegra@...r.kernel.org" <linux-tegra@...r.kernel.org>,
	"Stephen Warren" <swarren@...dia.com>,
	Prashant Gaikwad <pgaikwad@...dia.com>,
	"linux-arm-kernel@...ts.infradead.org" 
	<linux-arm-kernel@...ts.infradead.org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH] clk: add table lookup to mux

On Tue, Mar 19, 2013 at 10:33:09PM +0100, Mike Turquette wrote:
> Quoting Peter De Schrijver (2013-03-12 11:42:23)
> > Add a table lookup feature to the mux clock. Also allow arbitrary masks
> > instead of the width. This will be used by some clocks on Tegra114. Also
> > adapt the tegra periph clk because it uses struct clk_mux directly.
> >
> > Signed-off-by: Peter De Schrijver <pdeschrijver@...dia.com>
> 
> Do you actually need arbitrary masks instead of a continuous bitfield?
> Or does this change just make it easier for you to convert existing
> data?
> 

Yes we need arbitrary masks. We have some clocks where some bits of the mux
are at the bottom of a 32bit register and other bits are at the top.

Cheers,

Peter.
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