linux-kernel - [PATCH v3 0/5] ASoC: fsl: Support register and unregister rpmsg sound card through remoteproc

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Date: Mon, 11 Mar 2024 20:13:44 +0900
From: Chancel Liu <chancel.liu@....com>
To: shengjiu.wang@...il.com,
	Xiubo.Lee@...il.com,
	festevam@...il.com,
	nicoleotsuka@...il.com,
	lgirdwood@...il.com,
	broonie@...nel.org,
	perex@...ex.cz,
	tiwai@...e.com,
	shawnguo@...nel.org,
	s.hauer@...gutronix.de,
	kernel@...gutronix.de,
	linux-imx@....com,
	alsa-devel@...a-project.org,
	linuxppc-dev@...ts.ozlabs.org,
	linux-sound@...r.kernel.org,
	linux-kernel@...r.kernel.org,
	linux-arm-kernel@...ts.infradead.org
Cc: Chancel Liu <chancel.liu@....com>
Subject: [PATCH v3 0/5] ASoC: fsl: Support register and unregister rpmsg sound card through remoteproc

	echo /lib/firmware/fw.elf > /sys/class/remoteproc/remoteproc0/firmware
(A)	echo start > /sys/class/remoteproc/remoteproc0/state
(B)	echo stop > /sys/class/remoteproc/remoteproc0/state

The rpmsg sound card is registered in (A) and unregistered in (B).
After "start", imx-audio-rpmsg registers devices for ASoC platform driver
and machine driver. Then sound card is registered. After "stop",
imx-audio-rpmsg unregisters devices for ASoC platform driver and machine
driver. Then sound card is unregistered.

changes in v2
- Fix build errors reported by kernel test robot

changes in v3
- Add a new patch for fsl_rpmsg to register CPU DAI with rpmsg channel
  name
- Update imx-rpmsg.c to get DT node of ASoC CPU DAI device with rpmsg
  channel name instead of using undocumented bindings

Chancel Liu (5):
  ASoC: fsl: imx-pcm-rpmsg: Register component with rpmsg channel name
  ASoC: fsl: imx-audio-rpmsg: Register device with rpmsg channel name
  ASoC: fsl: Let imx-audio-rpmsg register platform device for card
  ASoC: fsl: fsl_rpmsg: Register CPU DAI with name of rpmsg channel
  ASoC: fsl: imx-rpmsg: Update to correct DT node

 sound/soc/fsl/fsl_rpmsg.c       | 43 ++++++++++++++++++++-------------
 sound/soc/fsl/imx-audio-rpmsg.c | 21 +++++++++++++---
 sound/soc/fsl/imx-pcm-rpmsg.c   | 11 ++++++---
 sound/soc/fsl/imx-rpmsg.c       | 28 ++++++++++++++-------
 4 files changed, 71 insertions(+), 32 deletions(-)

--
2.43.0