On Thu, Feb 18, 2021 at 1:23 AM Shengjiu Wang <shengjiu.wang@xxxxxxxxx> wrote: > > On Thu, Feb 11, 2021 at 6:18 AM Rob Herring <robh@xxxxxxxxxx> wrote: > > > > On Sun, Feb 07, 2021 at 06:23:55PM +0800, Shengjiu Wang wrote: > > > Imx-rpmsg is a new added machine driver for supporting audio on Cortex-M > > > core. The Cortex-M core will control the audio interface, DMA and audio > > > codec, setup the pipeline, the audio driver on Cortex-A core side is just > > > to communitcate with M core, it is a virtual sound card and don't touch > > > the hardware. > > > > I don't understand why there are 2 nodes for this other than you happen > > to want to split this into 2 Linux drivers. It's 1 h/w thing. > > This one is for the sound card machine driver. Another one is > for the sound card cpu dai driver. so there are 2 nodes. You are explaining this to me in terms of drivers. Explain it in terms of h/w blocks. Rob
