i2c2 is connected to the HDMI connector and is controlled by the
firmware. Disable it to stay out of harms way.

From the downstream commit:

i2c-bcm2708/BCM270X_DT: Add support for I2C2

The third I2C bus (I2C2) is normally reserved for HDMI use. Careless
use of this bus can break an attached display - use with caution.

It is recommended to disable accesses by VideoCore by setting
hdmi_ignore_edid=1 or hdmi_edid_file=1 in config.txt.

Signed-off-by: Noralf Tr?nnes <redacted>
---
 arch/arm/boot/dts/bcm2835-rpi.dtsi | 4 ----
 1 file changed, 4 deletions(-)

diff --git a/arch/arm/boot/dts/bcm2835-rpi.dtsi b/arch/arm/boot/dts/bcm2835-rpi.dtsi
index e9b47b2..8bffbee 100644
--- a/arch/arm/boot/dts/bcm2835-rpi.dtsi
+++ b/arch/arm/boot/dts/bcm2835-rpi.dtsi

@@ -59,10 +59,6 @@
 	clock-frequency = <100000>;
 };
 
-&i2c2 {
-	status = "okay";
-};
-
 &sdhci {
 	status = "okay";
 	bus-width = <4>;

-- 
2.8.2