[alsa-devel] [PATCH v2 0/3] Enable HDA Codec support on Intel Platforms (Series1)

[Takashi Iwai]

On Fri, 02 Mar 2018 11:51:53 +0100,
Rakesh Ughreja wrote:
> 
> Enhanced HD Audio capabilities introduced in HD Audio controllers are
> added in backward compatible way i.e. it does not change the behavior
> of the controller with respect to HDA Bus and HDA devices.
> 
> Since there is no change in the hardware with respect to the HDA bus and
> HDA device it is more appropriate to represent the same in software as
> well.
> 
> In order to align software representation with hardware it makes more
> sense to have common data structures across device, bus and driver for both
> enhanced HDA controllers and legacy HDA controllers.
> 
> This patch series removes the hdac_ext_device structure, hdac_ext_bus and
> hdac_ext_driver data structures so that legacy and enhanced HDaudio
> capabilities can be handled in a backward-compatible way without
> separate definitions.
> 
> Once this clean-up is complete, additional patches will allow for
> HDaudio codec support in an ASoC framework without the need to develop
> new codec drivers, thereby enabling the use of the Intel DSP on more
> platforms (currently limited to hdmi).
> 
> Changes v2:
> - No functionality changes in this series except rebase.
> 
> Rakesh Ughreja (3):
>   ALSA: hdac: Remove usage of struct hdac_ext_device and use hdac_device
>     instead
>   ALSA: hdac: Remove usage of struct hdac_ext_bus and use hdac_bus
>     instead
>   ALSA: hdac: Remove usage of struct hdac_ext_driver, use hdac_driver
>     instead

These are merely cleanups, so I'm fine to merge these, but I can't
merge for now since it's based on Mark's branch.

Mark, please send a pull request for Intel SKL stuff before working on
this issue.  Then we can set the solid base line for both legacy and
asoc HD-audio.


thanks,

Takashi