linux-kernel - Re: [PATCH] gpio: (gpio-pca953x) move header to linux/platform

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Date:	Fri, 16 Aug 2013 11:02:20 -0400 (EDT)
From:	Vivien Didelot <vivien.didelot@...oirfairelinux.com>
To:	Linus Walleij <linus.walleij@...aro.org>
Cc:	linux-gpio@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
	linux-kernel@...r.kernel.org, kernel@...oirfairelinux.com
Subject: Re: [PATCH] gpio: (gpio-pca953x) move header to
 linux/platform_data/

Hi Linus,

You wrote:
> But:
> 
> >  drivers/gpio/gpio-pca953x.c                 |  2 +-
> (...)
> > diff --git a/drivers/gpio/gpio-pca953x.c
> > b/drivers/gpio/gpio-pca953x.c
> > index 426c51d..8804aec 100644
> > --- a/drivers/gpio/gpio-pca953x.c
> > +++ b/drivers/gpio/gpio-pca953x.c
> > @@ -18,7 +18,7 @@
> >  #include <linux/irq.h>
> >  #include <linux/irqdomain.h>
> >  #include <linux/i2c.h>
> > -#include <linux/i2c/pca953x.h>
> > +#include <linux/platform_data/pca953x.h>
> 
> Why does the GPIO driver need platform data from the
> I2C driver???
> 
> Can't this just be made to go away?

I didn't dig that much in the driver, but I cannot imagine
another way to pass, for instance, the setup callback.

What would be a good alternative for you?

Regards,
Vivien
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