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[FEATURE] Explicit clock control #2907
Description
Some codecs need external clock (mclk or bclk) to be ready in prepare stage or some function may broken.
To support those codec, we need to implement explicit clock control so machine driver could enable/disable the clock via DAPM supply widget or set_bias_level callback.
This feature has been implemented on SST FW running on Chrome KBL platforms. Following are the mailthread:
https://mailman.alsa-project.org/pipermail/alsa-devel/2017-November/127833.html
https://mailman.alsa-project.org/pipermail/alsa-devel/2019-October/156161.html
Activity
brentlu commentedon May 10, 2021
same request in sof
thesofproject/sof#4156
plbossart commentedon Jun 10, 2021
duplicate of #314
let's close this one, we will work on this when we have multi-client support. for short-term it's enough to support early bitclk enablement.