On Fri, Feb 11, 2022 at 02:02:58PM +0800, Peng Fan (OSS) wrote: > From: Peng Fan <peng.fan@xxxxxxx> > > Similar to i.MX8ULP S4 MU, i.MX93 MU is dedicated for communication > between Sentinel and Cortex-A cores from hardware design, it could not be > reused for other purpose. > > However i.MX93 S4 MU use separate tx/rx interrupt, so update > interrupts and add interrupt-names property. > > Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@xxxxxxxxxxxxx> > Signed-off-by: Peng Fan <peng.fan@xxxxxxx> > --- > .../devicetree/bindings/mailbox/fsl,mu.yaml | 21 +++++++++++++++++++ > 1 file changed, 21 insertions(+) > > diff --git a/Documentation/devicetree/bindings/mailbox/fsl,mu.yaml b/Documentation/devicetree/bindings/mailbox/fsl,mu.yaml > index 6d056d5e16bf..f0a7e693ebf8 100644 > --- a/Documentation/devicetree/bindings/mailbox/fsl,mu.yaml > +++ b/Documentation/devicetree/bindings/mailbox/fsl,mu.yaml > @@ -29,6 +29,7 @@ properties: > - const: fsl,imx8ulp-mu > - const: fsl,imx8-mu-scu > - const: fsl,imx8-mu-seco > + - const: fsl,imx93-mu-s4 > - const: fsl,imx8ulp-mu-s4 > - items: > - const: fsl,imx93-mu > @@ -57,6 +58,12 @@ properties: > interrupts: > maxItems: 1 > > + interrupt-names: > + minItems: 1 > + items: > + - const: txirq > + - const: rxirq 'irq' is redundant. Drop. > + > "#mbox-cells": > description: | > <&phandle type channel> > @@ -90,6 +97,20 @@ required: > - interrupts > - "#mbox-cells" > > +allOf: > + - if: > + properties: > + compatible: > + enum: > + - fsl,imx93-mu-s4 > + then: > + properties: > + interrupt-names: > + minItems: 2 > + maxItems: 2 minItems is enough. > + interrupts: > + maxItems: 2 You haven't tested this with 2 items. It will fail because the main section has a limit of 1 item. Rob
