Messages in this thread | | | Date | Wed, 10 Oct 2018 10:57:41 +0100 | From | Sudeep Holla <> | Subject | Re: [PATCH v4 2/2] dt-bindings: mailbox: Add Xilinx IPI Mailbox |
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On Wed, Oct 10, 2018 at 12:18:32AM -0700, Wendy Liang wrote: > Xilinx ZynqMP IPI(Inter Processor Interrupt) is a hardware block > in ZynqMP SoC used for the communication between various processor > systems. > > Signed-off-by: Wendy Liang <wendy.liang@xilinx.com>
[...]
> +Optional properties: > +-------------------- > +- method: The method of accessing the IPI agent registers. > + Permitted values are: "smc" and "hvc". Default is > + "smc".
You are mixing the hardware messaging based mailbox and the software "smc/hvc" based mailbox together here. Please keep them separated. IIUC smc/hvc based mailcox is used for "tx" or too keep it simple in one direction and hardware based is used for "rx" or the other direction for communication.
You *should not* mix them as single unit. Also lots of other vendor need SMC/HVC based mailbox. So make it generic and keep it separate.
-- Regards, Sudeep
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