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SubjectRe: [PATCH 1/2] arm64: dts: imx8mm: Add SAI nodes
On Mon, Apr 22, 2019 at 5:45 AM Shawn Guo <shawnguo@kernel.org> wrote:
>
> On Fri, Apr 19, 2019 at 08:20:39PM +0000, Daniel Baluta wrote:
> > i.MX8MM has 5 SAI instances with the following base
> > addresses according to RM.
> >
> > SAI1 base address: 3001_0000h
> > SAI2 base address: 3002_0000h
> > SAI3 base address: 3003_0000h
> > SAI5 base address: 3005_0000h
> > SAI6 base address: 3006_0000h
> >
> > Signed-off-by: Bai Ping <ping.bai@nxp.com>
> > Signed-off-by: Daniel Baluta <daniel.baluta@nxp.com>
> > ---
> > arch/arm64/boot/dts/freescale/imx8mm.dtsi | 68 +++++++++++++++++++++++
> > 1 file changed, 68 insertions(+)
> >
> > diff --git a/arch/arm64/boot/dts/freescale/imx8mm.dtsi b/arch/arm64/boot/dts/freescale/imx8mm.dtsi
> > index de3498c2dd44..e9a0b2b6063a 100644
> > --- a/arch/arm64/boot/dts/freescale/imx8mm.dtsi
> > +++ b/arch/arm64/boot/dts/freescale/imx8mm.dtsi
> > @@ -171,6 +171,74 @@
> > #size-cells = <1>;
> > ranges;
> >
> > + sai1: sai@30010000 {
> > + compatible = "fsl,imx8mq-sai",
>
> Should be "fsl,imx8mm-sai"?

SAI IP on imx8mm is identical with the one on imx8mq. There is no need
to differentiate with a compatible string.

What is the common practice for such cases?

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