Messages in this thread | | | Date | Thu, 4 Feb 2016 21:09:03 +0100 | From | Wolfram Sang <> | Subject | Re: [PATCH V7 3/6] i2c: qup: Transfer each i2c_msg in i2c_msgs without a stop bit |
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Hi,
> Ah, so what I meant above is there is no 'STOP' bit between each msg in > i2c_msgs, > but 'REAPEATED_START' still holds true. We are sending 'START' bit for each > msg. > So these is how each msg in i2c_msg is sent, > > |------MSG1--------|-----MSG2---------|------MSG3------------| > > |START|DATA|------|START|DATA|---|START|DATA|STOP| > > If my commit text does not make this clear, I can reword that ?
OK, now this looks to me perfectly fine: A number of *messages* concatenated into one *transfer* by repeated start. That's the way it should be.
So, I'd simply remove these words:
"The QUP i2c hardware has no way to inform that there should not be a 'STOP' at the end of transaction. The only way to implement this is to coalesce all the i2c_msg in i2c_msgs in to one transaction and transfer them."
This sounded like the HW needed a special handling, so I was under the impression REP_START was broken. However, unless I misunderstood something again, this now sounds like the standard case and we can keep the commit message simple. If you are okay with that, I can update it here, no need to resend.
Thanks,
Wolfram [unhandled content-type:application/pgp-signature] | |