The nvidia,tristate entry for the pinmux of i2c1 an i2c3 was set to tristate. This results in non working i2c, because the i2c pins are not actively driven. Set the entries to "driven". Signed-off-by: Anna-Maria Gleixner <anna-maria@xxxxxxxxx> diff --git a/arch/arm/boot/dts/tegra20-colibri-512.dtsi b/arch/arm/boot/dts/tegra20-colibri-512.dtsi index 4441620..ad699bb 100644 --- a/arch/arm/boot/dts/tegra20-colibri-512.dtsi +++ b/arch/arm/boot/dts/tegra20-colibri-512.dtsi @@ -86,13 +86,13 @@ nvidia,pins = "rm"; nvidia,function = "i2c1"; nvidia,pull = <0>; - nvidia,tristate = <1>; + nvidia,tristate = <0>; }; i2c3 { nvidia,pins = "dtf"; nvidia,function = "i2c3"; nvidia,pull = <0>; - nvidia,tristate = <1>; + nvidia,tristate = <0>; }; i2cddc { nvidia,pins = "ddc"; -- To unsubscribe from this list: send the line "unsubscribe linux-tegra" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html