From mboxrd@z Thu Jan 1 00:00:00 1970 From: noralf@tronnes.org (=?UTF-8?q?Noralf=20Tr=C3=B8nnes?=) Date: Tue, 27 Sep 2016 13:57:06 +0200 Subject: [PATCH v2 8/8] ARM: bcm2835: Disable i2c2 in the Device Tree In-Reply-To: <1474977426-3272-1-git-send-email-noralf@tronnes.org> References: <1474977426-3272-1-git-send-email-noralf@tronnes.org> Message-ID: <1474977426-3272-9-git-send-email-noralf@tronnes.org> To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org 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 --- 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