From mboxrd@z Thu Jan 1 00:00:00 1970 From: plagnioj@jcrosoft.com (Jean-Christophe PLAGNIOL-VILLARD) Date: Fri, 9 Mar 2012 10:53:36 +0100 Subject: [PATCH 2/5 v3] ARM: at91: sam9g20 add i2c DT support In-Reply-To: <4F58E77B.4010500@gmail.com> References: <1331196635-27203-1-git-send-email-plagnioj@jcrosoft.com> <1331196635-27203-2-git-send-email-plagnioj@jcrosoft.com> <4F58E77B.4010500@gmail.com> Message-ID: <20120309095336.GK27213@game.jcrosoft.org> To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org On 11:08 Thu 08 Mar , Rob Herring wrote: > On 03/08/2012 02:50 AM, Jean-Christophe PLAGNIOL-VILLARD wrote: > > For now on use i2c-gpio driver on the same pin as the hardware IP. > > > > Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD > > Cc: Nicolas Ferre > > Cc: devicetree-discuss at lists.ozlabs.org > > --- > > v3: > > > > update i2c binding (Rob comments) > > > > Best Regards, > > J. > > arch/arm/boot/dts/at91sam9g20.dtsi | 13 +++++++++++++ > > 1 files changed, 13 insertions(+), 0 deletions(-) > > > > diff --git a/arch/arm/boot/dts/at91sam9g20.dtsi b/arch/arm/boot/dts/at91sam9g20.dtsi > > index 4b0dc99..072b2da 100644 > > --- a/arch/arm/boot/dts/at91sam9g20.dtsi > > +++ b/arch/arm/boot/dts/at91sam9g20.dtsi > > @@ -189,4 +189,17 @@ > > status = "disabled"; > > }; > > }; > > +> > + i2c-gpio at 0 { > > You updated the example, but not all the actual uses to i2c at 0. on purpose as on some soc we will have HW and soft binding on the board you put the alias Best Regards, J. > > Rob > > > + compatible = "i2c-gpio"; > > + gpios = <&pioA 23 0 /* sda */ > > + &pioA 24 0 /* scl */ > > + >; > > + i2c-gpio,sda-open-drain; > > + i2c-gpio,scl-open-drain; > > + i2c-gpio,delay-us = <2>; /* ~100 kHz */ > > + #address-cells = <1>; > > + #size-cells = <0>; > > + status = "disabled"; > > + }; > > }; > > > _______________________________________________ > linux-arm-kernel mailing list > linux-arm-kernel at lists.infradead.org > http://lists.infradead.org/mailman/listinfo/linux-arm-kernel