linux-kernel - Re: [PATCHv1 2/6] dmaengine: dw_dmac: add driver for Atmel AT32

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Message-ID: <CAHp75VfRWpkTPq2S=oTuWK+DhWoT-MDZd_4nnZW0GkEBSUM=zA@mail.gmail.com>
Date:	Wed, 26 Sep 2012 09:56:43 +0300
From:	Andy Shevchenko <andy.shevchenko@...il.com>
To:	viresh kumar <viresh.kumar@...aro.org>
Cc:	Andy Shevchenko <andriy.shevchenko@...ux.intel.com>,
	Vinod Koul <vinod.koul@...el.com>,
	linux-kernel@...r.kernel.org,
	Heikki Krogerus <heikki.krogerus@...ux.intel.com>,
	spear-devel <spear-devel@...t.st.com>
Subject: Re: [PATCHv1 2/6] dmaengine: dw_dmac: add driver for Atmel AT32

On Wed, Sep 26, 2012 at 9:51 AM, viresh kumar <viresh.kumar@...aro.org> wrote:
> On Wed, Sep 26, 2012 at 12:17 PM, Andy Shevchenko
> <andriy.shevchenko@...ux.intel.com> wrote:
>
>> This separate driver makes no sense in case it is built properly without
>> CLK framework. Let me check this and leave comments at patch 1/6.
>
> Following is the commit that introduced this change :)
Thanks for pointing to it

>
> commit 93abe8e4b13ae9a0428ce940a8a03ac72a7626f1
> Author: Viresh Kumar <viresh.kumar@...com>
> Date:   Mon Jul 30 14:39:27 2012 -0700
A-ha, this explains: Heikki's patches are stamped as follows

commit 7c33a7ec5f1f68c1ab06eee7ff7118a7b62db5da
Author: Heikki Krogerus <heikki.krogerus@...ux.intel.com>
Date:   Mon May 7 12:31:29 2012 +0300

>
>     clk: add non CONFIG_HAVE_CLK routines
>
>     Many drivers are shared between architectures that may or may not have
>     HAVE_CLK selected for them.  To remove compilation errors for them we
>     enclose clk_*() calls in these drivers within #ifdef CONFIG_HAVE_CLK,
>     #endif.
>
>     This patch removes the need of these CONFIG_HAVE_CLK statements, by
>     introducing dummy routines when HAVE_CLK is not selected by platforms.
>     So, definition of these routines will always be available.  These calls
>     will return error for platforms that don't select HAVE_CLK.
>
>     Signed-off-by: Viresh Kumar <viresh.kumar@...com>
>     Cc: Wolfram Sang <w.sang@...gutronix.de>
>     Cc: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
>     Cc: Jeff Garzik <jgarzik@...hat.com>
>     Cc: Andrew Lunn <andrew@...n.ch>
>     Cc: Bhupesh Sharma <bhupesh.sharma@...com>
>     Cc: Giuseppe Cavallaro <peppe.cavallaro@...com>
>     Cc: Russell King <rmk@....linux.org.uk>
>     Cc: Mike Turquette <mturquette@...aro.org>
>     Cc: Sergei Shtylyov <sshtylyov@...mvista.com>
>     Cc: viresh kumar <viresh.linux@...il.com>
>     Signed-off-by: Andrew Morton <akpm@...ux-foundation.org>
>     Signed-off-by: Linus Torvalds <torvalds@...ux-foundation.org>
> --
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-- 
With Best Regards,
Andy Shevchenko
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