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Sound Open Firmware
Enable device PM runtime for imx8m. This also includes a manifest. TODO: do the manifest update in separate PR for visibility.
This code is only for testing the SOF Driver parts showing the global capture hw mute indicator here: https://github.com/thesofproject/linux/pull/5310
Some codecs need the MCLK/BCLK/LRCLK to be on before streaming starts (typically 10s of ms to avoid clicks/pops), see e.g. https://elixir.bootlin.com/linux/latest/source/sound/soc/intel/boards/kbl_rt5663_max98927.c#L86 for RT5663 The SSP IPC supports keeping the clock...