ARM: dts: imx6sx-udoo-neo: enable i2c-2 and i2c-4 for onboard sensors

The i2c2 bus has a external plug which enables the easy connection of external
"bricks" with sensors of various kinds, while i2c4 on the Extended/Full boards
has a pair of on board motion sensors, accelerometer and magnetometer on one chip
and gyroscope on another so it makes sense to enable these i2c buses for use.
Tested on UDOO Neo Full.

Signed-off-by: Peter Robinson <pbrobinson@gmail.com>
Reviewed-by: Fabio Estevam <festevam@gmail.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>

diff --git a/arch/arm/boot/dts/imx6sx-udoo-neo-extended.dts b/arch/arm/boot/dts/imx6sx-udoo-neo-extended.dts
index b6ba03c..cc9994e 100644 (file)
--- a/arch/arm/boot/dts/imx6sx-udoo-neo-extended.dts
+++ b/arch/arm/boot/dts/imx6sx-udoo-neo-extended.dts
@@ -16,3 +16,7 @@
                reg = <0x80000000 0x40000000>;
        };
 };
+
+&i2c4 { /* Onboard Motion sensors */
+       status = "okay";
+};

diff --git a/arch/arm/boot/dts/imx6sx-udoo-neo-full.dts b/arch/arm/boot/dts/imx6sx-udoo-neo-full.dts
index 4d5e379..12e802f 100644 (file)
--- a/arch/arm/boot/dts/imx6sx-udoo-neo-full.dts
+++ b/arch/arm/boot/dts/imx6sx-udoo-neo-full.dts
@@ -31,3 +31,7 @@
                };
        };
 };
+
+&i2c4 { /* Onboard Motion sensors */
+       status = "okay";
+};

diff --git a/arch/arm/boot/dts/imx6sx-udoo-neo.dtsi b/arch/arm/boot/dts/imx6sx-udoo-neo.dtsi
index b4fcee2..1c3362d 100644 (file)
--- a/arch/arm/boot/dts/imx6sx-udoo-neo.dtsi
+++ b/arch/arm/boot/dts/imx6sx-udoo-neo.dtsi
@@ -188,6 +188,20 @@
        };
 };
 
+&i2c2 { /* Brick snap in sensors connector */
+       pinctrl-names = "default";
+       pinctrl-0 = <&pinctrl_i2c2>;
+       clock-frequency = <100000>;
+       status = "okay";
+};
+
+&i2c4 { /* Onboard Motion sensors */
+       pinctrl-names = "default";
+       pinctrl-0 = <&pinctrl_i2c4>;
+       clock-frequency = <100000>;
+       status = "disabled";
+};
+
 &iomuxc {
        pinctrl_bt_reg: btreggrp {
                fsl,pins =
@@ -219,6 +233,18 @@
                        <MX6SX_PAD_GPIO1_IO01__I2C1_SDA         0x4001b8b1>;
        };
 
+       pinctrl_i2c2: i2c2grp {
+               fsl,pins =
+                       <MX6SX_PAD_GPIO1_IO03__I2C2_SDA         0x4001b8b1>,
+                       <MX6SX_PAD_GPIO1_IO02__I2C2_SCL         0x4001b8b1>;
+       };
+
+       pinctrl_i2c4: i2c4grp {
+               fsl,pins =
+                       <MX6SX_PAD_USB_H_DATA__I2C4_SDA         0x4001b8b1>,
+                       <MX6SX_PAD_USB_H_STROBE__I2C4_SCL       0x4001b8b1>;
+       };
+
        pinctrl_uart1: uart1grp {
                fsl,pins =
                        <MX6SX_PAD_GPIO1_IO04__UART1_TX         0x1b0b1>,