linux-kernel - [PATCH 0/5] imx8mp: Add support to Run/Stall DSP via reset API

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Message-Id: <20250218085712.66690-1-daniel.baluta@nxp.com>
Date: Tue, 18 Feb 2025 10:57:07 +0200
From: Daniel Baluta <daniel.baluta@....com>
To: p.zabel@...gutronix.de,
	shawnguo@...nel.org,
	mathieu.poirier@...aro.org
Cc: s.hauer@...gutronix.de,
	kernel@...gutronix.de,
	festevam@...il.com,
	imx@...ts.linux.dev,
	linux-arm-kernel@...ts.infradead.org,
	linux-kernel@...r.kernel.org,
	andersson@...nel.org,
	linux-remoteproc@...r.kernel.org,
	iuliana.prodan@....com,
	laurentiu.mihalcea@....com,
	shengjiu.wang@....com,
	Frank.Li@....com,
	krzk@...nel.org,
	Daniel Baluta <daniel.baluta@....com>
Subject: [PATCH 0/5] imx8mp: Add support to Run/Stall DSP via reset API

This patch series adds support to Run/Stall DSP found on i.MX8MP via the
reset controller API.

Patches 1-4 apply to reset-imx8mp-audiomix (should go via reset
controller tree)
 * refactor code, introduce active_low configuration option and then
   add support to Run/Stall DSP.

Patch 5 applies to imx_dsp_rproc driver (should go via REMOTEPROC tree)
 * use reset controller API to control the DSP instead of directly
   touching the audiomix registers via a syscon.

Using reset controller API was suggested by Frank Li and Krzysztof
Kozlowski in the following discussion thread:

https://patchwork.kernel.org/project/imx/patch/20241210125338.104959-6-daniel.baluta@nxp.com/

Daniel Baluta (5):
  reset: imx8mp-audiomix: Add prefix for internal macro
  reset: imx8mp-audiomix: Prepare the code for more reset bits
  reset: imx8mp-audiomix: Introduce active_low configuration option
  reset: imx8mp-audiomix: Add support for DSP run/stall
  imx_dsp_rproc: Use reset controller API to control the DSP

 drivers/remoteproc/imx_dsp_rproc.c    | 25 +++++---
 drivers/remoteproc/imx_rproc.h        |  2 +
 drivers/reset/reset-imx8mp-audiomix.c | 86 ++++++++++++++++++++-------
 3 files changed, 83 insertions(+), 30 deletions(-)

-- 
2.25.1