On Thu, 21 Mar 2019 17:10:04 +0100, Pierre-Louis Bossart wrote:
From: Liam Girdwood liam.r.girdwood@linux.intel.com
SOF exposes regular ALSA Kcontrols that are defined by topology. This patch converts the Kcontrol IO to DSP IPC.
The current implementation is aligned with previous Intel solutions, but is not optimal and can be improved: a) for every get/put the host wakes up the DSP and generates an IPC. The kernel should cache the values and generate an IPC only when strictly necessary. b) the firmware can be implemented to only instantiate the pipelines and related control-related parts that are needed at a given time, and power-gate the relevant SRAM blocks.
The development tasks for these two improvements has started, once validated they willl be provided in an update.
will
thanks,
Takashi