From mboxrd@z Thu Jan  1 00:00:00 1970
From: Wolfram Sang <wsa@the-dreams.de>
Subject: Re: [PATCH v5 2/8] i2c: iproc: Add slave mode support
Date: Wed, 27 Mar 2019 23:41:52 +0100
Message-ID: <20190327224152.GA19245@kunai>
References: <20190214175725.60462-1-ray.jui@broadcom.com>
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 <20190327221452.GA15396@kunai>
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To: Ray Jui <ray.jui@broadcom.com>
Cc: Rob Herring <robh+dt@kernel.org>, Mark Rutland <mark.rutland@arm.com>, linux-i2c@vger.kernel.org, devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, bcm-kernel-feedback-list@broadcom.com, Rayagonda Kokatanur <rayagonda.kokatanur@broadcom.com>, Shreesha Rajashekar <shreesha.rajashekar@broadcom.com>, Michael Cheng <ccheng@broadcom.com>
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> > +	/* flush TX/RX FIFOs */
> > +	val =3D (BIT(S_FIFO_RX_FLUSH_SHIFT) | BIT(S_FIFO_TX_FLUSH_SHIFT));
> > +	writel(val, iproc_i2c->base + S_FIFO_CTRL_OFFSET);
>=20
> Will flushing FIFOs work when a slave is register while a master
> transfer is on-going at the same time?

Sorry, my bad, this can't happen. Registering a slave is protected by
the adapter lock.


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