linux-kernel - [PATCH v5 0/5] Configure imx8mp dsp node for rproc usage

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Message-ID: <20250317133306.2003909-1-daniel.baluta@nxp.com>
Date: Mon, 17 Mar 2025 15:33:01 +0200
From: Daniel Baluta <daniel.baluta@....com>
To: shawnguo@...nel.org,
	robh@...nel.org
Cc: s.hauer@...gutronix.de,
	kernel@...gutronix.de,
	krzk+dt@...nel.org,
	conor+dt@...nel.org,
	festevam@...il.com,
	devicetree@...r.kernel.org,
	imx@...ts.linux.dev,
	linux-arm-kernel@...ts.infradead.org,
	linux-kernel@...r.kernel.org,
	frank.li@....com,
	aisheng.dong@....com,
	daniel.baluta@...il.com,
	laurentiu.mihalcea@....com,
	shengjiu.wang@....com,
	iuliana.prodan@....com,
	a.fatoum@...gutronix.de,
	mathieu.poirier@...aro.org,
	linux-remoteproc@...r.kernel.org,
	Daniel Baluta <daniel.baluta@....com>
Subject: [PATCH v5 0/5] Configure imx8mp dsp node for rproc usage

DSP found in i.MX8MP SOC can be used by multiple frameworks in order to
enable various applications:
        - rproc/rpmsg framework, used to load for example Zephyr samples
        - Sound Open Firmware, used to enable various audio processing
          pipelines.

Current dsp node was configured with SOF in mind but it doesn't work
well with imx8mp-evk dts. SOF controls audio IPs from firmware side
while imx8mp-evk.dts preffers to control audio IPs from Linux side.

So, configure 'dsp' node to be used with rproc scenario and later will
add a separate dts or an overlay to configure the node for SOF.

This patch series configures and enables dsp node to be used with rproc.

Changes since v4:
(https://lore.kernel.org/linux-arm-kernel/Z6zGLn3B6SVXhTV1@lizhi-Precision-Tower-5810/T/)
	- after comments received on v4, we implemented the run/stall
	  bits using reset controller API (changes merged ->
https://patchwork.kernel.org/project/linux-arm-kernel/cover/20250311085812.1296243-1-daniel.baluta@nxp.com/)
        - drop patches related to DSP run/stall/reset via syscon
	- picked up patch related to using run_stall via reset
	  controller API.

Daniel Baluta (5):
  arm64: dts: imx8mp: Use resets property
  arm64: dts: imx8mp: Add mu2 root clock
  arm64: dts: imx8mp: Configure dsp node for rproc usage
  arm64: dts: imx8mp: Add DSP clocks
  arm64: dts: Add dsp rproc related mem regions

 arch/arm64/boot/dts/freescale/imx8mp-evk.dts | 10 +++++++++
 arch/arm64/boot/dts/freescale/imx8mp.dtsi    | 22 +++++++++++++-------
 2 files changed, 25 insertions(+), 7 deletions(-)

-- 
2.43.0