From: Daniel Baluta <daniel.baluta@xxxxxxx> This code is based on top of SOF topic/sof-dev branch and we want to have a review with ALSA and Device Tree communities then it will be merged to SOF tree and then merged into ALSA tree. DSP node on the Linux kernel side must also take care of enabling DAI/DMA related clocks. By design we choose to manage DAI/DMA clocks from the kernel side because of the architecture of some i.MX8 boards. Clocks are handled by a special M4 core which runs a special firmware called SCFW (System Controler firmware). This communicates with A cores running Linux via a special Messaging Unit and implements a custom API which is already implemented by the Linux kernel i.MX clocks implementation. Note that these clocks are optional. We can use the DSP without them. Changes since v1: - used clk bulk API as suggested by mark Daniel Baluta (2): ASoC: SOF: imx: Add code to manage DSP related clocks dt-bindings: dsp: fsl: Add DSP optional clocks documentation .../devicetree/bindings/dsp/fsl,dsp.yaml | 33 ++++++++++++++ sound/soc/sof/imx/imx-common.c | 44 +++++++++++++++++++ sound/soc/sof/imx/imx-common.h | 13 ++++++ sound/soc/sof/imx/imx8.c | 37 ++++++++++++++++ sound/soc/sof/imx/imx8m.c | 34 ++++++++++++++ 5 files changed, 161 insertions(+) -- 2.27.0
