From: Shengjiu Wang <shengjiu.wang@nxp.com>

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).

A HiFi4 DSP node is added and the DSP device is enabled in the i.MX8ULP

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 (4):
  dt-bindings: dsp: fsl,dsp: document debug reset control
  remoteproc: imx_dsp_rproc: Add softreset and dbgreset handling
  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