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@xxxxxxx> > > > --- > > > 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