[alsa-devel] [RFC] ASoC: core: Allow DAI links to be specified by using ACPI names

[Rafael J. Wysocki]

On Friday, October 04, 2013 10:22:43 AM Jarkko Nikula wrote:
> On 10/04/2013 09:53 AM, Rafael J. Wysocki wrote:
> > On Thursday, October 03, 2013 03:33:56 PM Jarkko Nikula wrote:
> >> This patch adds alternative way to specify DAI links by using ACPI names.
> >> ACPI name here is considered to be used as an alias for device name during
> >> DAI link binding time.
> > What's DAI?
> It comes from Digital Audio Interface, and DAI link in ALSA SoC 
> basically ties together platform, DAI and codec devices by name or 
> device tree node.
> 
> > +#if IS_ENABLED(CONFIG_ACPI)
> > That's not necessary, because ACPI_HANDLE() is defined as false for
> > CONFIG_ACPI unset.
> Actually problem acpi_bus_get_device() that is not available if 
> CONFIG_ACPI is not set. Which suggests was it even meant to be used in 
> drivers that are build for non ACPI systems too?

No, acpi_bus_get_device() shoudn't be used if CONFIG_ACPI is not set.

Thanks!

-- 
I speak only for myself.
Rafael J. Wysocki, Intel Open Source Technology Center.