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Subject[PATCH 5/9] ARM: dts: ux500: samsung-golden: Add IMU (accelerometer + gyroscope)
Date
samsung-golden has a InvenSense MPU-6051M IMU that provides an
accelerometer and gyroscope. It seems to be functionally compatible
with MPU-6050 so we can easily enable it by adding the necessary
device tree nodes.

Signed-off-by: Stephan Gerhold <stephan@gerhold.net>
---
.../arm/boot/dts/ste-ux500-samsung-golden.dts | 37 +++++++++++++++++++
1 file changed, 37 insertions(+)

diff --git a/arch/arm/boot/dts/ste-ux500-samsung-golden.dts b/arch/arm/boot/dts/ste-ux500-samsung-golden.dts
index 51f2afe42c1c..14a084e1846b 100644
--- a/arch/arm/boot/dts/ste-ux500-samsung-golden.dts
+++ b/arch/arm/boot/dts/ste-ux500-samsung-golden.dts
@@ -6,6 +6,7 @@
#include "ste-dbx5x0-pinctrl.dtsi"
#include <dt-bindings/gpio/gpio.h>
#include <dt-bindings/input/input.h>
+#include <dt-bindings/interrupt-controller/irq.h>

/*
* Note: This device tree cannot be booted directly with the Samsung bootloader.
@@ -114,6 +115,33 @@ uart@80007000 {
pinctrl-1 = <&u2rxtx_c_1_sleep>;
};

+ i2c@80128000 {
+ status = "okay";
+
+ pinctrl-names = "default", "sleep";
+ pinctrl-0 = <&i2c2_b_2_default>;
+ pinctrl-1 = <&i2c2_b_2_sleep>;
+
+ imu@68 {
+ compatible = "invensense,mpu6050";
+ reg = <0x68>;
+
+ /* GPIO206 (ACC_INT) */
+ interrupt-parent = <&gpio6>;
+ interrupts = <14 IRQ_TYPE_EDGE_RISING>;
+
+ mount-matrix = "0", "1", "0",
+ "-1", "0", "0",
+ "0", "0", "1";
+
+ vdd-supply = <&ab8500_ldo_aux1_reg>;
+ vddio-supply = <&ab8500_ldo_aux8_reg>;
+
+ pinctrl-names = "default";
+ pinctrl-0 = <&imu_default>;
+ };
+ };
+
prcmu@80157000 {
ab8505 {
ab8500_usb {
@@ -272,6 +300,15 @@ golden_cfg1 {
};
};

+ imu {
+ imu_default: imu_default {
+ golden_cfg1 {
+ pins = "GPIO206_AG24"; /* ACC_INT */
+ ste,config = <&gpio_in_pd>;
+ };
+ };
+ };
+
vibrator {
vibrator_default: vibrator_default {
golden_cfg1 {
--
2.24.1
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