linux-kernel - Re: [PATCH V3 07/12] ata/sata_mv: Remove conditional compilation of clk code

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Message-ID: <20120425103744.GT24211@n2100.arm.linux.org.uk>
Date:	Wed, 25 Apr 2012 11:37:44 +0100
From:	Russell King - ARM Linux <linux@....linux.org.uk>
To:	Andrew Lunn <andrew@...n.ch>
Cc:	Lothar Wa??mann <LW@...O-electronics.de>,
	viresh kumar <viresh.linux@...il.com>, sshtylyov@...sta.com,
	spear-devel@...t.st.com, linux-kernel@...r.kernel.org,
	linux-ide@...r.kernel.org, mturquette@...aro.org,
	akpm@...ux-foundation.org, jgarzik@...hat.com,
	linux-arm-kernel@...ts.infradead.org
Subject: Re: [PATCH V3 07/12] ata/sata_mv: Remove conditional compilation
	of clk code

On Wed, Apr 25, 2012 at 11:31:09AM +0200, Andrew Lunn wrote:
> > If an arch has HAVE_CLK enabled it must provide valid clocks (be it
> > dummy clocks) for all devices it supports.
> 
> So, lets take the theoretical exaple of a unicore32 PUV3
> 
> config ARCH_PUV3
>         def_bool y
>         select CPU_UCV2
>         select GENERIC_CLOCKEVENTS
>         select HAVE_CLK
>         select ARCH_REQUIRE_GPIOLIB
>         select ARCH_HAS_CPUFREQ
> 
> Seems like this somewhat unknown, to me at least, architecture, also
> supports PCI. So i plug in an HP Adaptec AIC8120 SATA host bus adapter
> into a spare PCI slot. This uses the Marvell 88SX6041, which the
> SATA_MV driver supports.
> 
> Should i expect that the unicore32 PUV3 has created a dummy clk for
> this case?

Are you going to bother answering the detailed email I sent describing
my POV on this case?
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