[alsa-devel] [PATCH v5 1/2] ALSA: hda: add Intel DSP configuration / probe code

[Takashi Iwai]

On Tue, 22 Oct 2019 19:43:12 +0200,
Jaroslav Kysela wrote:
> 
> For distributions, we need one place where we can decide
> which driver will be activated for the auto-configation of the
> Intel's HDA hardware with DSP. Actually, we cover three drivers:
> 
> * Legacy HDA
> * Intel SST
> * Intel Sound Open Firmware (SOF)
> 
> All those drivers registers similar PCI IDs, so the first
> driver probed from the PCI stack can win. But... it is not
> guaranteed that the correct driver wins.
> 
> This commit changes Intel's NHLT ACPI module to a common
> DSP probe module for the Intel's hardware. All above sound
> drivers calls this code. The user can force another behaviour
> using the module parameter 'dsp_driver' located in
> the 'snd-intel-dspcfg' module.
> 
> This change allows to add specific dmi checks for the specific
> systems. The examples are taken from the pull request:
> 
>   https://github.com/thesofproject/linux/pull/927
> 
> Tested on Lenovo Carbon X1 7th gen.
> 
> Signed-off-by: Jaroslav Kysela <perex at perex.cz>
> Tested-by: Pierre-Louis Bossart <pierre-louis.bossart at linux.intel.com>

Applied now.  Thanks.


Takashi