[PATCH v2 8/8] ARM: bcm2835: Disable i2c2 in the Device Tree

From: Noralf TrÃnnes
Date: Tue Sep 27 2016 - 07:59:48 EST


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 TrÃnnes <noralf@xxxxxxxxxxx>
---
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