linux-kernel - Re: [PATCH] i2c: fix build bug in i2c-designware.c

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Message-ID: <20090625174000.GV14476@trinity.fluff.org>
Date:	Thu, 25 Jun 2009 18:40:00 +0100
From:	Ben Dooks <ben-linux@...ff.org>
To:	Ingo Molnar <mingo@...e.hu>
Cc:	Linus Torvalds <torvalds@...ux-foundation.org>,
	Baruch Siach <baruch@...s.co.il>,
	Ben Dooks <ben-linux@...ff.org>,
	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH] i2c: fix build bug in i2c-designware.c

On Thu, Jun 25, 2009 at 08:32:21AM +0200, Ingo Molnar wrote:
> 
> Find below a minor build fix for a new ARM-only driver.
> 
> 	Ingo
> 
> --------------->
> >From 8bf467c9f4591f77e1d69bd78fb6cc4f1ff387f8 Mon Sep 17 00:00:00 2001
> From: Ingo Molnar <mingo@...e.hu>
> Date: Thu, 25 Jun 2009 08:27:14 +0200
> Subject: [PATCH] i2c: fix build bug in i2c-designware.c
> 
> This build error triggers on x86:
> 
>  drivers/built-in.o: In function `i2c_dw_init':
>  i2c-designware.c:(.text+0x4e37ca): undefined reference to `clk_get_rate'
>  drivers/built-in.o: In function `dw_i2c_probe':
>  i2c-designware.c:(.devinit.text+0x51f5e): undefined reference to `clk_get'
>  i2c-designware.c:(.devinit.text+0x51f76): undefined reference to `clk_enable'
>  i2c-designware.c:(.devinit.text+0x520ff): undefined reference to `clk_disable'
>  i2c-designware.c:(.devinit.text+0x52108): undefined reference to `clk_put'
> 
> Because this new driver uses the clk_*() facilities which is an
> ARM-only thing currently.
> 
> Signed-off-by: Ingo Molnar <mingo@...e.hu>
> ---
>  drivers/i2c/busses/Kconfig |    1 +
>  1 files changed, 1 insertions(+), 0 deletions(-)
> 
> diff --git a/drivers/i2c/busses/Kconfig b/drivers/i2c/busses/Kconfig
> index d56351a..0760f25 100644
> --- a/drivers/i2c/busses/Kconfig
> +++ b/drivers/i2c/busses/Kconfig
> @@ -334,6 +334,7 @@ config I2C_DAVINCI
>  
>  config I2C_DESIGNWARE
>  	tristate "Synopsys DesignWare"
> +	depends on HAVE_CLK
>  	help
>  	  If you say yes to this option, support will be included for the
>  	  Synopsys DesignWare I2C adapter. Only master mode is supported.

thanks, missed there not being a 'depends on' line...

Baurch - can you submit a patch to declare which ARM architectures that
this runs on, or whether Ingo's dependency on HAVE_CLK is the fix to merge?

-- 
Ben

Q:      What's a light-year?
A:      One-third less calories than a regular year.

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