Re: [PATCH v7 3/6] dt-bindings: mailbox: imx-mu: add generic MU channel support

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On Tue, Jul 31, 2018 at 12:51 PM, A.s. Dong <aisheng.dong@xxxxxxx> wrote:
> Hi Jassi,
>
>> > However, if SCU (in its current form) must be supported. We may need
>> > to add the third cell (irq enable or not) or some better way, right
>> > now.
>> >
>> Looking at imx_mu_scu_send_data(), which simply polls on the tx, I think we
>> don't even need third cell for scu client. A simple 2-cell, 8 uni-dir channel
>> setup should work.
>
> How would you suggest to use for SCU in 2 -cells?
>
>> If I see the scu client driver, I could confirm how it would work.
>>
>
> I've already given a general overview from here:
> https://www.spinics.net/lists/arm-kernel/msg669202.html
>
No, that is controller side code.

> Do you need me to send the full scu client driver patch for the reference?
> If yes, please feel free to let me know.
>
Yes, that'll make it clearer.
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