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freifunkist-firmware/target/linux/sunxi/patches-3.14/216-dt-sun7i-add-i2c-to-cub...

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1.2 KiB

From 6267355f0e513bed9a5009924abc7a1e7de22ab3 Mon Sep 17 00:00:00 2001
From: Chen-Yu Tsai <wens@csie.org>
Date: Mon, 6 Jan 2014 13:58:12 +0800
Subject: [PATCH] arm: sun7i: cubietruck: Enable the i2c controllers
The Cubietruck makes use of the first three i2c controllers found on the
Allwinner A20; i2c-0 is used internally for the PMIC, i2c-1 is exposed on
the board headers, and i2c-2 is used for DDC on the VGA connector. This
patch enables them in the device tree.
Signed-off-by: Chen-Yu Tsai <wens@csie.org>
Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
---
arch/arm/boot/dts/sun7i-a20-cubietruck.dts | 18 ++++++++++++++++++
1 file changed, 18 insertions(+)
--- a/arch/arm/boot/dts/sun7i-a20-cubietruck.dts
+++ b/arch/arm/boot/dts/sun7i-a20-cubietruck.dts
@@ -130,6 +130,24 @@
reg = <1>;
};
};
+
+ i2c0: i2c@01c2ac00 {
+ pinctrl-names = "default";
+ pinctrl-0 = <&i2c0_pins_a>;
+ status = "okay";
+ };
+
+ i2c1: i2c@01c2b000 {
+ pinctrl-names = "default";
+ pinctrl-0 = <&i2c1_pins_a>;
+ status = "okay";
+ };
+
+ i2c2: i2c@01c2b400 {
+ pinctrl-names = "default";
+ pinctrl-0 = <&i2c2_pins_a>;
+ status = "okay";
+ };
};
leds {