ARM: at91: sam9g45 add i2c DT support
authorJean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
Sun, 5 Feb 2012 10:32:37 +0000 (18:32 +0800)
committerJean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
Thu, 15 Mar 2012 15:29:43 +0000 (23:29 +0800)
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>
arch/arm/boot/dts/at91sam9g45.dtsi

index d79021b..92fe5a5 100644 (file)
                        status = "disabled";
                };
        };
+
+       i2c@0 {
+               compatible = "i2c-gpio";
+               gpios = <&pioA 20 0 /* sda */
+                        &pioA 21 0 /* scl */
+                       >;
+               i2c-gpio,sda-open-drain;
+               i2c-gpio,scl-open-drain;
+               i2c-gpio,delay-us = <5>;        /* ~100 kHz */
+               #address-cells = <1>;
+               #size-cells = <0>;
+               status = "disabled";
+       };
 };