linux-kernel - Re: [PATCH 1/2] x86/platform: add a wallclock_init func to x86

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Message-ID: <alpine.LFD.2.00.1101251618210.31804@localhost6.localdomain6>
Date:	Tue, 25 Jan 2011 16:20:17 +0100 (CET)
From:	Thomas Gleixner <tglx@...utronix.de>
To:	Alan Cox <alan@...rguk.ukuu.org.uk>
cc:	x86@...nel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH 1/2] x86/platform: add a wallclock_init func to x86_platforms
 ops

On Tue, 25 Jan 2011, Alan Cox wrote:

> From: Feng Tang <feng.tang@...el.com>
> 
> Some wall clock devices use MMIO based HW register, this new function will
> give them a chance to do some initialization work before their get/set_time
> service get called.
> 
> Signed-off-by: Feng Tang <feng.tang@...el.com>
> Signed-off-by: Jacob Pan <jacob.jun.pan@...ux.intel.com>
> Signed-off-by: Alan Cox <alan@...ux.intel.com>
> ---
> 
>  arch/x86/include/asm/x86_init.h |    2 ++
>  arch/x86/kernel/setup.c         |    2 ++
>  arch/x86/kernel/x86_init.c      |    2 ++
>  3 files changed, 6 insertions(+), 0 deletions(-)
> 
> 
> diff --git a/arch/x86/include/asm/x86_init.h b/arch/x86/include/asm/x86_init.h
> index 64642ad..f7fa2e7 100644
> --- a/arch/x86/include/asm/x86_init.h
> +++ b/arch/x86/include/asm/x86_init.h
> @@ -138,6 +138,7 @@ struct x86_cpuinit_ops {
>  /**
>   * struct x86_platform_ops - platform specific runtime functions
>   * @calibrate_tsc:		calibrate TSC
> + * @wallclock_init:		init the wallclock device

That's a one time called init function, so it should go into
x86_init_ops.

Thanks,

	tglx
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