linux-kernel - Re: [PATCH] i2c: rcar: ensure Gen3+ reset does not disturb local targets

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Message-ID: <x3vki7j7ulld6jz4vqv2mfg6xbhcr6yliod5fnmqmw3jvu5rra@julwoep6ayct>
Date: Fri, 12 Jul 2024 01:48:18 +0200
From: Andi Shyti <andi.shyti@...nel.org>
To: Wolfram Sang <wsa+renesas@...g-engineering.com>, 
	linux-renesas-soc@...r.kernel.org, linux-i2c@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] i2c: rcar: ensure Gen3+ reset does not disturb local
 targets

Hi Wolfram,

On Thu, Jul 11, 2024 at 11:17:43PM GMT, Wolfram Sang wrote:
> On Thu, Jul 11, 2024 at 10:30:44AM +0200, Wolfram Sang wrote:
> > R-Car Gen3+ needs a reset before every controller transfer. That erases
> > configuration of a potentially in parallel running local target
> > instance. To avoid this disruption, avoid controller transfers if a
> > local target is running. Also, disable SMBusHostNotify because it
> > requires being a controller and local target at the same time.
> > 
> > Signed-off-by: Wolfram Sang <wsa+renesas@...g-engineering.com>
> 
> Fixes: 3b770017b03a ("i2c: rcar: handle RXDMA HW behaviour on Gen3")

I was about to ask.

Pushed to i2c/i2c-host-fixes.

Thanks,
Andi