[U-Boot-Users] [PATCH v2 3/7] add an i2c driver for mx31

Jean-Christophe PLAGNIOL-VILLARD plagnioj at jcrosoft.com
Tue Apr 15 06:35:49 CEST 2008


On 23:21 Mon 14 Apr     , Grant Likely wrote:
> On Mon, Apr 14, 2008 at 5:28 PM, Guennadi Liakhovetski <lg at denx.de> wrote:
> > On Mon, 14 Apr 2008, Wolfgang Denk wrote:
> >
> >  > In message <20080414064659.GB17663 at game.jcrosoft.org> you wrote:
> >  > >
> >  > > > +#if defined(CONFIG_HARD_I2C) && defined (CONFIG_I2C_MXC)
> >  > > Please stop to define this here, move it the Makefile
> >  >
> >  > Hm... While I agree with the simple standard case of a single
> >  > "#ifdef", I'm not so 100% sure it is a good thing to add such complex
> >  > expressions to the Makefile.
> >  >
> >  > Aren't we just moving the #ifdef hell from one place to another?
> >
> >  Wouldn't it be logical to assume, that if CONFIG_I2C_MXC is defined,
> >  CONFIG_HARD_I2C is meant too? So, we could just put in i2c.h
> >
> >  #ifdef CONFIG_I2C_MXC
> >  #define CONFIG_HARD_I2C
> >  #endif
> >
> >  And then use the simple
> >
> >  OBJC-$(CONFIG_I2C_MXC) += ...
> >
> 
> Yes, this is the way I'd solve the problem.
I dont't like the idean to modify the i2c.h for each i2c drivers
implemetation. I prefer to keep it into the config file and move it to
the Kconfig.
I hope that I've time the next merge window to send it.

Best Regards,
J.




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