On Mon, Mar 11, 2024 at 7:14 PM Chancel Liu <chancel.liu@xxxxxxx> wrote: > > 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. Acked-by: Shengjiu Wang <shengjiu.wang@xxxxxxxxx> Best regards Shengjiu Wang > > 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 >
