[PATCH v3 0/5] Enable DSP device for i.MX8ULP

[shengjiu . wang]

From: Shengjiu Wang <shengjiu.wang@xxxxxxx>

The debug reset control is one of the HIFI4 DSP’s reset mechanisms used
by the debug interface; add documentation for the optional debug reset
controls and update the driver to use both the soft reset and debug reset
controller APIs (the soft reset is already documented).

Add a HiFi4 DSP node and enable the DSP on i.MX8ULP.

Changes in v3
- Split the previous patch 1/4 into two patches
- Update the commit message to explain why the reset properties are
  required for i.MX8ULP
- Update the commit message of patch 3/5 to clarify the switch from
  direct register access to the reset controller API

Changes in v2:
- Update commit messages for all patches
- Require the reset properties for the i.MX8ULP HiFi4 DSP in patch 1/4,
  as suggested by Sashiko
- Use sim_lpav as the clock provider for the ipg, ocram, and core clocks in
  patch 3/4, as suggested by Sashiko
- Rename the reserved-memory node from dsp_reserved to memory in patch 4/4,
  as suggested by Sashiko

Shengjiu Wang (5):
  dt-bindings: dsp: fsl,dsp: document debug reset control
  dt-bindings: dsp: fsl,dsp: require resets for i.MX8ULP
  remoteproc: imx_dsp_rproc: use reset controller for i.MX8ULP
  arm64: dts: imx8ulp: add HiFi4 DSP node
  arm64: dts: imx8ulp-evk: Enable HiFi4 DSP

 .../devicetree/bindings/dsp/fsl,dsp.yaml      |  4 +
 arch/arm64/boot/dts/freescale/imx8ulp-evk.dts | 34 +++++++++
 arch/arm64/boot/dts/freescale/imx8ulp.dtsi    | 23 ++++++
 drivers/remoteproc/imx_dsp_rproc.c            | 76 +++++--------------
 4 files changed, 82 insertions(+), 55 deletions(-)

-- 
2.34.1