linux-kernel - RE: [PATCH 2/2] i2c: designware: slave should do WRITE_REQUESTED before WRITE

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Message-ID: <5DB475451BAA174CB158B5E897FC1525B129558A@MBS07.vivotek.tw>
Date:   Wed, 4 Nov 2020 10:51:34 +0000
From:   <Michael.Wu@...ics.com>
To:     <wsa@...nel.org>
CC:     <jarkko.nikula@...ux.intel.com>,
        <andriy.shevchenko@...ux.intel.com>,
        <mika.westerberg@...ux.intel.com>, <linux-i2c@...r.kernel.org>,
        <linux-kernel@...r.kernel.org>, <morgan.chang@...ics.com>
Subject: RE: [PATCH 2/2] i2c: designware: slave should do WRITE_REQUESTED
 before WRITE_RECEIVED

Hi Wolfram,

> Thanks for the detailed explanation! Okay, then what you do looks
> correct to me (from a high level perspective without really knowing the
> HW): when RX is full, you first send the state WRITE_REQUESTED when
> there is no other transfer on-going. Then you send WRITE_RECEIVED
> immediately. I think this is the way to do it.

Bingo!! Thanks for your understanding.

I think I should have a habit of writing comments... X-P

Best regards,
Michael Wu