[alsa-devel] [PATCH 03/11] ASoC: fsl: add sgtl5000 clock support for imx-sgtl5000

Mark Brown broonie at opensource.wolfsonmicro.com
Wed May 2 14:22:29 CEST 2012


On Wed, May 02, 2012 at 08:12:24PM +0800, Shawn Guo wrote:
> On Wed, May 02, 2012 at 12:41:22PM +0100, Mark Brown wrote:

> > The major problem here is that we can't rely on having the clock API
> > present at all on most platforms so as soon as we start adding clock
> > support into things we have to do a performance with HAVE_CLK which is
> > at best annoying.

> Is this something that the series below tries to solve?

> http://thread.gmane.org/gmane.linux.ports.arm.kernel/163652

Well, it helps building but that's only part of the issue - we've still
got registration problems and if we were using the API in anger we would
need things like clk_set_rate() to actually work.  It's not just a case
of simply enabling and disabling clocks (which can be stubbed out pretty
effectively), audio generally needs to manage the clock rates too.
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