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ARM: at91: sam9g20 add i2c DT support

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For now on use i2c-gpio driver on the same pin as the hardware IP.

Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
Acked-by: Grant Likely <grant.likely@secretlab.ca>
Acked-by: Rob Herring <rob.herring@calxeda.com>
Cc: Nicolas Ferre <nicolas.ferre@atmel.com>
This commit is contained in:
Jean-Christophe PLAGNIOL-VILLARD 2012-02-05 18:25:33 +08:00
parent 8ffaa0f40d
commit 3b3f828039
1 changed files with 13 additions and 0 deletions
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13
arch/arm/boot/dts/at91sam9g20.dtsi
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@ -189,4 +189,17 @@ &pioC 14 0
status = "disabled";
};
};
i2c@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";
};
};