Re: [PATCH v2] gpio: driver for PrimeCell PL061 GPIO controller

From: Russell King - ARM Linux
Date: Mon Jun 01 2009 - 06:16:03 EST


On Mon, Jun 01, 2009 at 01:02:35PM +0300, Baruch Siach wrote:
> Hi Russell,
>
> On Mon, Jun 01, 2009 at 10:31:06AM +0100, Russell King - ARM Linux wrote:
> > On Mon, Jun 01, 2009 at 12:00:36PM +0300, Baruch Siach wrote:
> > > This is a driver for the ARM PrimeCell PL061 GPIO AMBA peripheral. The driver
> > > is implemented using the gpiolib framework.
> >
> > Why is this a platform driver rather than an AMBA primecell driver?
>
> I'm willing to make this driver an AMBA driver. I'd just like to know what
> is the advantage of the AMBA bus (linux/amba/bus.h) over the platform "bus",
> from software point of view?

The amba bus is the established bus for amba primecells. I repeat:
please make it an amba bus driver.
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