Re: [PATCH v4] i2c: sh_mobile: implement atomic transfers

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> To make sure external conditions are satisfied, and we never deadlock,
> as discussed in v3?
> 
>     if (pd->dev->power.is_suspended)
>             return -EPERM;  /* any other suitable error code? */

Let's handle this seperately. I still think this could/should go into
the core but haven't had the time to investigate this further.

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