linux-kernel - Re: [PATCH 2/3] msm: iommu: Generalize platform data for multiple targets

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Date:	Fri, 11 Feb 2011 13:00:34 -0800
From:	Steve Muckle <smuckle@...eaurora.org>
To:	Daniel Walker <dwalker@...eaurora.org>
CC:	Stepan Moskovchenko <stepanm@...eaurora.org>,
	davidb@...eaurora.org, linux-arm-msm@...r.kernel.org,
	linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH 2/3] msm: iommu: Generalize platform data for multiple
 targets

On 02/11/11 12:58, Daniel Walker wrote:
> On Fri, 2011-02-11 at 12:51 -0800, Steve Muckle wrote:
>> On 02/11/11 12:42, Daniel Walker wrote:
>>>>  static struct resource msm_iommu_jpegd_resources[] = {
>>>>  	{
>>>> -		.start = MSM_IOMMU_JPEGD_PHYS,
>>>> -		.end   = MSM_IOMMU_JPEGD_PHYS + MSM_IOMMU_JPEGD_SIZE - 1,
>>>> +		.start = 0x07300000,
>>>> +		.end   = 0x07300000 + SZ_1M - 1,
>>>
>>> Looks worse .. Just put the macros into a static header file for both.
>>
>> Why bother defining macros for these if they only appear here? I don't
>> think that adds any value or readability - these addresses are clearly
>> the physical area for the msm_iommu_jpegd. It just makes it more
>> annoying to have to look up the values in a separate file if you are
>> wondering what they are.
> 
> So your saying if you look at the number 0x07300000 you instantly know
> that this JPEGD?

Yes, because it's the start address for the msm_iommu_jpegd resource.

thanks,
Steve

-- 
Sent by an employee of the Qualcomm Innovation Center, Inc.
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