On Wed, Jun 18, 2008 at 10:15:58AM -0500, Menon, Nishanth wrote:
> Timur,
> > -----Original Message-----
> > From: Timur Tabi [mailto:[EMAIL PROTECTED]
> > Sent: Wednesday, June 18, 2008 9:55 AM
> > To: Menon, Nishanth
> > Cc: Sascha Hauer; Laurent Desnogues; Kamat, Nishant; [EMAIL PROTECTED]; 
> > u-boot-
> > [EMAIL PROTECTED]
> > Subject: Re: [U-Boot-Users] [Patch 0/9] U-boot-V2: Introduce I2C support 
> > for SDP3430
> >
> > Do we really want to bloat U-Boot with these huge Linux drivers?  U-Boot 
> > already
> > has I2C support that works pretty well.  Your patchset is overkill, IMHO.
> Please see U-boot v2 here: 
> http://www.denx.de/cgi-bin/gitweb.cgi?p=u-boot/u-boot-v2.git;a=tree;f=drivers;h=2b524fc7692e5ee0b99843df17a911dd54c84e73;hb=78c2fde77a953351aac8d7e92336eb37b64c0985
> 
> It does not have i2c support. And IMHO, using kernel like i2c addition in 
> U-Boot v2 is appropriate. Why this is not a bloat U-Boot v2?
> A) Now, if you just want i2c_transfer without any device interface, you don't 
> need to compile in the CHARDEV.
> B) Since we use a different linking strategy in U-Boot-v2 which uses gcc link 
> stage to decide which functions be retained and which not, it is pretty neat 
> to see all unused functionality disappear.

Note that this is only true when modules are disabled. Once modules are
enabled, every function marked with EXPORT_MODULE gets linked in as you
don't know which functions will be needed later. So please check your
build with modules enabled.

Sascha


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