Add HDA specific IPC mechanism for Intel DSP HW.
Signed-off-by: NKeyon Jie <yang.jie@linux.intel.com>
Signed-off-by: NLiam Girdwood <liam.r.girdwood@linux.intel.com>
Signed-off-by: NPierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Reviewed-by: NTakashi Iwai <tiwai@suse.de>
Signed-off-by: NMark Brown <broonie@kernel.org>