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Describe them with two boolean properties. A Hot-Join request is acknowledged by the IBI machinery, so a hot-join capable design is always IBI capable as well. Both events are reported through the controller interrupt, which is therefore required whenever the capability is present. Signed-off-by: Shubham Patil Acked-by: Conor Dooley --- Changes in V4: - Restore v2: keep xlnx,in-band-interrupt-capable and xlnx,hot-join-capable in the AMD binding. Do not move them into i3c.yaml. - Added Acked-by: Conor Dooley tag. Changes in V3: - Move in-band-interrupt-capable and hot-join-capable into the common i3c.yaml schema and drop the xlnx, prefix. - Keep dependencies in the AMD binding. - Update the commit description accordingly. - Conor Dooley acked v2 with the xlnx,-prefixed properties in the AMD binding [1]. That Acked-by is not carried here: the names lost the vendor prefix and the definitions moved to i3c.yaml after Frank Li's comment. [1]:https://lore.kernel.org/all/20260824-tightwad-impose-495476599087@spud/ Changes in V2: - Rename the properties to "xlnx,in-band-interrupt-capable" and "xlnx,hot-join-capable", and expand their descriptions. - Express the interrupt requirement with dependencies: instead of an allOf/if-then clause. --- .../bindings/i3c/xlnx,axi-i3c-1.0.yaml | 24 +++++++++++++++++++ 1 file changed, 24 insertions(+) diff --git a/Documentation/devicetree/bindings/i3c/xlnx,axi-i3c-1.0.yaml b/Documentation/devicetree/bindings/i3c/xlnx,axi-i3c-1.0.yaml index 2caa245a8656..a04becc07374 100644 --- a/Documentation/devicetree/bindings/i3c/xlnx,axi-i3c-1.0.yaml +++ b/Documentation/devicetree/bindings/i3c/xlnx,axi-i3c-1.0.yaml @@ -32,11 +32,33 @@ properties: interrupts: maxItems: 1 + xlnx,in-band-interrupt-capable: + type: boolean + description: + The IP is synthesized with In-Band Interrupt support. An In-Band + Interrupt lets a target signal the controller over the SDA and SCL + pair instead of a dedicated side-band interrupt line, by driving its + own dynamic address during bus arbitration. Such requests are + reported through the controller interrupt. + + xlnx,hot-join-capable: + type: boolean + description: + The IP is synthesized with Hot-Join support. Hot-Join lets a target + attached or powered up after the bus is already running announce + itself using the reserved Hot-Join address, so that the controller + can assign it a dynamic address. The request is acknowledged by the + same machinery as an In-Band Interrupt. + required: - compatible - reg - clocks +dependencies: + xlnx,hot-join-capable: ["xlnx,in-band-interrupt-capable"] + xlnx,in-band-interrupt-capable: [interrupts] + allOf: - $ref: i3c.yaml# @@ -54,5 +76,7 @@ examples: interrupts = ; #address-cells = <3>; #size-cells = <0>; + xlnx,in-band-interrupt-capable; + xlnx,hot-join-capable; }; ... -- 2.34.1