linux-kernel - Re: [PATCH v2 01/11] msm: Add CPU queries

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Date:	Mon, 24 Jan 2011 16:23:54 -0800
From:	Daniel Walker <dwalker@...eaurora.org>
To:	David Brown <davidb@...eaurora.org>
Cc:	linux-arm-msm@...r.kernel.org, linux-kernel@...r.kernel.org,
	linux-arm-kernel@...ts.infradead.org
Subject: Re: [PATCH v2 01/11] msm: Add CPU queries

On Mon, 2011-01-24 at 16:20 -0800, David Brown wrote:
> On Mon, Jan 24 2011, Daniel Walker wrote:
> 
> > On Wed, 2011-01-19 at 12:25 -0800, David Brown wrote:
> >> +#define cpu_is_msm7x01()       0
> >> +#define cpu_is_msm7x30()       0
> >> +#define cpu_is_qsd8x50()       0
> >> +#define cpu_is_msm8x60()       0
> >
> > Now that I look at this again, why not drop the "x" all together ?
> 
> That might be better for the 8x60.  The complexity is that most of the
> MSM chips have some variants, where the CPU running Linux isn't changed,
> but the modem CPU is different (think CDMA/UMTS).  Until 8960, that was
> distinguished by the second letter.
> 
> Either way doesn't quite match reality, unfortunately.  There are
> devices using a MSM7201 and others using a MSM7601.  As far as Linux is
> concerned, there isn't any difference between them.  If someone wanted
> to try and identify the device they have with the code, it could be
> confusing for either name chosen.
> 
> I was planning on turning msm8x60 into msm8660, since that seems to be
> the most common one.  Perhaps the decoder ring should be put into the
> help text for the options so people can at least figure out which is
> which.

Are there any of those which do , right now, have Linux support for more
than one variant ?

Daniel

-- 

Sent by a consultant of the Qualcomm Innovation Center, Inc.
The Qualcomm Innovation Center, Inc. is a member of the Code Aurora Forum.

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