From mboxrd@z Thu Jan 1 00:00:00 1970 From: plagnioj@jcrosoft.com (Jean-Christophe PLAGNIOL-VILLARD) Date: Thu, 8 Mar 2012 09:50:32 +0100 Subject: [PATCH 2/5 v3] ARM: at91: sam9g20 add i2c DT support In-Reply-To: <1331196635-27203-1-git-send-email-plagnioj@jcrosoft.com> References: <1331196635-27203-1-git-send-email-plagnioj@jcrosoft.com> Message-ID: <1331196635-27203-2-git-send-email-plagnioj@jcrosoft.com> To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org 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 { + 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"; + }; }; -- 1.7.7