[alsa-devel] [PATCH 3/3] Add FSI-AK464x sound support for ms7724se

Mark Brown broonie at opensource.wolfsonmicro.com
Wed Aug 19 16:02:56 CEST 2009

On Wed, Aug 19, 2009 at 10:46:34PM +0900, Magnus Damm wrote:
> On Wed, Aug 19, 2009 at 9:00 PM, Mark
> Brown<broonie at opensource.wolfsonmicro.com> wrote:

> >> +     gpio_request(GPIO_FN_FSIMCKA,    NULL);

> > Is this something that the FSI driver should do for itself?  It looks
> > like there's no pin options here, just fixed functions for FSI A or B so
> > replicating per-board seems redundant.  On the other hand, if it's
> > idiomatic for SH better keep it this way.

> These GPIO_FN_ values are processor specific, sh7724 in this case. I
> suspect we will see the FSI block reused in future processors so
> keeping processor-specific bits out of the driver itself may be a good
> plan. Long term I'd be more than happy to pass along processors
> specific GPIOs to each driver, but at this point I don't know any
> clean and standard way to do that.

Is it possible to build kernels for more than one processor?  The way
the code looks that's not the case...

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