linux/sound/soc/intel/catpt
Cezary Rojewski 3d53c6df42
ASoC: Intel: catpt: Relax clock selection conditions
Stress tests show that DSP may occasionally be late with signaling WAIT
state when all pins are made use of simultaneously plus start/stop
(pause) gets involved. While this isn't tied to standard audio scenarios
where only System Pin (playback and capture) is involved, ensure user is
not hindered when playing with more advanced scenarios.

>From DSP perspective, clock acts as a resource: low clock equals less
resources, high clock more resources. Relax clock selection procedure so
only low -> high switch is allowed when awaiting WAIT signal times out.
Once active stream count decreases, DSP will have more time internally to
adjust thus low clock selection becomes possible again.

Signed-off-by: Cezary Rojewski <cezary.rojewski@intel.com>
Link: https://lore.kernel.org/r/20201012103221.30759-2-cezary.rojewski@intel.com
Signed-off-by: Mark Brown <broonie@kernel.org>
2020-10-14 20:29:56 +01:00
..
core.h ASoC: Intel: catpt: Simple sysfs attributes 2020-10-02 15:32:34 +01:00
device.c ASoC: Intel: catpt: Fix compilation when CONFIG_MODULES is disabled 2020-10-08 21:16:48 +01:00
dsp.c ASoC: Intel: catpt: Relax clock selection conditions 2020-10-14 20:29:56 +01:00
ipc.c ASoC: Intel: catpt: Event tracing 2020-10-02 15:32:33 +01:00
loader.c ASoC: Intel: catpt: PCM operations 2020-10-02 15:32:32 +01:00
Makefile ASoC: Intel: Select catpt and deprecate haswell 2020-10-02 15:32:39 +01:00
messages.c ASoC: Intel: catpt: Add IPC message handlers 2020-10-02 15:32:29 +01:00
messages.h
pcm.c ASoC: Intel: catpt: Wake up device before configuring SSP port 2020-10-14 20:29:55 +01:00
registers.h
sysfs.c ASoC: Intel: catpt: Simple sysfs attributes 2020-10-02 15:32:34 +01:00
trace.h ASoC: Intel: catpt: Event tracing 2020-10-02 15:32:33 +01:00