Re: [PATCH 02/10] arm64: dts: imx8qm-ss-audio: add audio nodes

[Francesco Dolcini <francesco@dolcini.it>]

Hello Frank,

On Wed, Apr 17, 2024 at 12:01:43PM -0400, Frank Li wrote:
> On Tue, Apr 16, 2024 at 08:50:26AM +0200, Francesco Dolcini wrote:
> > On Mon, Apr 15, 2024 at 03:46:38PM -0400, Frank Li wrote:
> > > Add i.MX8QM audio related nodes and update eDMA[0,1]'s information.
> > > 
> > > Signed-off-by: Frank Li <Frank.Li@nxp.com>
> > > ---
> > >  arch/arm64/boot/dts/freescale/imx8qm-ss-audio.dtsi | 473 +++++++++++++++++++++
> > >  arch/arm64/boot/dts/freescale/imx8qm.dtsi          |  86 ++++
> > >  2 files changed, 559 insertions(+)
> > > 
> > > diff --git a/arch/arm64/boot/dts/freescale/imx8qm-ss-audio.dtsi b/arch/arm64/boot/dts/freescale/imx8qm-ss-audio.dtsi
> > > new file mode 100644
> > > index 0000000000000..ed5a1b4af1d76
> > > --- /dev/null
> > > +++ b/arch/arm64/boot/dts/freescale/imx8qm-ss-audio.dtsi

...

> > > +/delete-node/ &acm;
> > > +/delete-node/ &sai4;
> > > +/delete-node/ &sai5;
> > > +/delete-node/ &sai4_lpcg;
> > > +/delete-node/ &sai5_lpcg;
> > 
> > Can you explain these delete-node ? This is something that I would
> > expect when a dtsi is previously included, not in this case.
> 
> We want to avoid some property inherent from parent dtsi file because it is
> big difference with common one.
> 
> This node will be rewrite totally in this files.

imx8qm-ss-audio.dtsi does not include any file. From where these
inherited properties are coming from? Which file is the "parent dtsi" ?

Thanks,
Francesco