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Learn why this is important at https://aka.ms/LearnAboutSenderIdentification ] >>>> >>>> Caution: This message originated from an External Source. Use proper caution when opening attachments, clicking links, or responding. >>>> >>>> >>>> On Fri, Aug 14, 2026 at 05:21:53PM +0530, Shubham Patil wrote: >>>>> In-Band Interrupt and Hot-Join are synthesis-time options of the AXI I3C >>>>> IP. 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 >>>>> --- >>>>> .../bindings/i3c/xlnx,axi-i3c-1.0.yaml | 23 +++++++++++++++++++ >>>>> 1 file changed, 23 insertions(+) >>>>> >>>> >>>> So the same SoC using this core will have different synthesis options? >>>> IOW, why isn't this implied by a specific compatible? >>> >>> Yes. This core is not part of the SoC's fixed hardware: it is a design >>> compiled into the FPGA fabric. When the core is added to a design in >>> Vivado, IBI and Hot-Join are options that are turned on or off, so two >>> builds -- or two instances in the same build -- can use the identical IP >>> version and still differ in which features are present. >>> >>> The compatible string identifies the IP core and its version. It says >> >> Well, you miss SoC compatibles so you cannot use argument of IP core. >> Although I do accept argument of two instances in a SoC having this >> different. > > How are SoC compatibles relevant here? It's an IP for FPGA fabric, so > even if you made some sort of zynq specific compatible (which I am not > advocating for to be clear) the IP configuration options may vary > between synthesis runs, so a SoC-specific compatible doesn't help. SOC compatibility make no sense here. It is soft IP. It can be in any fpga board with/without hard blocks (ARM cores) in different configuration per instance. You can have unlimited (obviously resource limited) amount of IPs in mixed configuration in the same device if you want/need. Thanks, Michal