linux-kernel - Re: [GIT PULL] sh updates for 2.6.35-rc1

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Date:	Tue, 18 May 2010 19:15:00 +0900
From:	Paul Mundt <lethal@...ux-sh.org>
To:	Jaswinder Singh Rajput <jaswinderlinux@...il.com>
Cc:	Linus Torvalds <torvalds@...ux-foundation.org>,
	linux-sh@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [GIT PULL] sh updates for 2.6.35-rc1

On Tue, May 18, 2010 at 03:15:31PM +0530, Jaswinder Singh Rajput wrote:
> I have few doubts :
> 
> 1. Which other architectures are using :
> include/linux/sh_clk.h, include/linux/sh_dma.h and include/linux/sh_intc.h
> 
ARM for starters, and there are likely to be others in the future, too.
Grepping would have made this pretty apparent.

> 2. If you think, in future some architecture will going to use these
> files, then do you think sh_*.h name is appropriate.
> 
Yes, given that they're all SH IP blocks. Although if there's many more
of them then of course putting them in their own subdirectory is an
option, too.

> 3. Can we move :
> include/linux/sh_clk.h -> drivers/sh/sh_clk.h
> include/linux/sh_dma.h -> drivers/dma/sh_dma.h
> include/linux/sh_intc.h -> drivers/sh/sh_intc.h
> So that if someone want to use these file they can use it from here.
> 
No.

The alternative is creating a shared architecture directory, which
doesn't really scale well given how these blocks can be arbitrarily
reused across different architectures -- but it's still something we
might have to look at depending on what else pops up that can't be
cleanly shared through the current scheme. You're of course welcome to
dig up the discussions in the archives when the ARM SH-Mobile code was
introduced in the first place.
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