From: Biju Das <biju.das-kTT6dE0pTRh9uiUsa/gSgQ@public.gmane.org>
To: Wolfram Sang <wsa-z923LK4zBo2bacvFa/9K2g@public.gmane.org>
Cc: Rob Herring <robh+dt-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org>,
Mark Rutland <mark.rutland-5wv7dgnIgG8@public.gmane.org>,
Simon Horman <horms-/R6kz+dDXgpPR4JQBCEnsQ@public.gmane.org>,
Magnus Damm <magnus.damm-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>,
Chris Paterson
<Chris.Paterson2-zM6kxYcvzFBBDgjK7y7TUQ@public.gmane.org>,
"devicetree-u79uwXL29TY76Z2rM5mHXA@public.gmane.org"
<devicetree-u79uwXL29TY76Z2rM5mHXA@public.gmane.org>,
"linux-renesas-soc-u79uwXL29TY76Z2rM5mHXA@public.gmane.org"
<linux-renesas-soc-u79uwXL29TY76Z2rM5mHXA@public.gmane.org>,
"linux-i2c-u79uwXL29TY76Z2rM5mHXA@public.gmane.org"
<linux-i2c-u79uwXL29TY76Z2rM5mHXA@public.gmane.org>
Subject: RE: [PATCH 0/2] Use demuxer for i2c1 and i2c5
Date: Mon, 22 Jan 2018 14:03:28 +0000 [thread overview]
Message-ID: <KL1PR06MB170262934FD5C3B9D422A134B8EC0@KL1PR06MB1702.apcprd06.prod.outlook.com> (raw)
In-Reply-To: <20180122122204.n25jf2rtaoxmi2yq@katana>
> Subject: Re: [PATCH 0/2] Use demuxer for i2c1 and i2c5
[>]
> > How do i2c-bus gets details of gpio lines associated with i2c bus for bus
> recovery?
>
> As you can see in the code, you don't need GPIOs if you can control SDA and SCL
> directly. The I2C IP can do this.
I agree. Thanks for correcting me.
> > On top of renesas-dev branch, I am using the below i2c-rcar driver related
> patches.
> >
> > https://www.mail-archive.com/linux-renesas-soc-u79uwXL29TY76Z2rM5mHXA@public.gmane.org/msg2227
> > 8.html
>
> Those should be enough. They are not?
Yes. I have tested without demuxer patches, I confirm, it can recover the bus.
Renesas Electronics Europe Ltd, Dukes Meadow, Millboard Road, Bourne End, Buckinghamshire, SL8 5FH, UK. Registered in England & Wales under Registered No. 04586709.
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WARNING: multiple messages have this Message-ID (diff)
From: Biju Das <biju.das@bp.renesas.com>
To: Wolfram Sang <wsa@the-dreams.de>
Cc: Rob Herring <robh+dt@kernel.org>,
Mark Rutland <mark.rutland@arm.com>,
Simon Horman <horms@verge.net.au>,
Magnus Damm <magnus.damm@gmail.com>,
"Chris Paterson" <Chris.Paterson2@renesas.com>,
"devicetree@vger.kernel.org" <devicetree@vger.kernel.org>,
"linux-renesas-soc@vger.kernel.org"
<linux-renesas-soc@vger.kernel.org>,
"linux-i2c@vger.kernel.org" <linux-i2c@vger.kernel.org>
Subject: RE: [PATCH 0/2] Use demuxer for i2c1 and i2c5
Date: Mon, 22 Jan 2018 14:03:28 +0000 [thread overview]
Message-ID: <KL1PR06MB170262934FD5C3B9D422A134B8EC0@KL1PR06MB1702.apcprd06.prod.outlook.com> (raw)
In-Reply-To: <20180122122204.n25jf2rtaoxmi2yq@katana>
> Subject: Re: [PATCH 0/2] Use demuxer for i2c1 and i2c5
[>]
> > How do i2c-bus gets details of gpio lines associated with i2c bus for bus
> recovery?
>
> As you can see in the code, you don't need GPIOs if you can control SDA and SCL
> directly. The I2C IP can do this.
I agree. Thanks for correcting me.
> > On top of renesas-dev branch, I am using the below i2c-rcar driver related
> patches.
> >
> > https://www.mail-archive.com/linux-renesas-soc@vger.kernel.org/msg2227
> > 8.html
>
> Those should be enough. They are not?
Yes. I have tested without demuxer patches, I confirm, it can recover the bus.
Renesas Electronics Europe Ltd, Dukes Meadow, Millboard Road, Bourne End, Buckinghamshire, SL8 5FH, UK. Registered in England & Wales under Registered No. 04586709.
next prev parent reply other threads:[~2018-01-22 14:03 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-01-22 11:29 [PATCH 0/2] Use demuxer for i2c1 and i2c5 Biju Das
2018-01-22 11:29 ` [PATCH vY 1/2] ARM: dts: iwg22d-sodimm-dbhd-ca: use demuxer for I2C1 Biju Das
2018-01-22 11:29 ` [PATCH vY 2/2] ARM: dts: iwg22d-sodimm: use demuxer for I2C5 Biju Das
2018-01-22 11:40 ` [PATCH 0/2] Use demuxer for i2c1 and i2c5 Wolfram Sang
2018-01-22 11:55 ` Biju Das
2018-01-22 12:22 ` Wolfram Sang
2018-01-22 14:03 ` Biju Das [this message]
2018-01-22 14:03 ` Biju Das
2018-01-22 14:08 ` Wolfram Sang
2018-01-23 13:39 ` Biju Das
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