From 2f23cda3bfa5820fd3702dff45453af4420f7ada Mon Sep 17 00:00:00 2001
From: Linus Walleij <linus.walleij@linaro.org>
Date: Fri, 13 Nov 2015 15:00:03 +0100
Subject: [PATCH] ARM: ux500: configure the sensors on the TVK board correctly

The U8500 HREF TVK board actually has a large set of sensors, with
their interrupt lines connected using open drain electronics.
Configure the two accelerometers and two magnetometers so we get
all sensors to actually probe on boot.

Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
---
 arch/arm/boot/dts/ste-href-tvk1281618.dtsi | 50 +++++++++++++++++++---
 1 file changed, 43 insertions(+), 7 deletions(-)

diff --git a/arch/arm/boot/dts/ste-href-tvk1281618.dtsi b/arch/arm/boot/dts/ste-href-tvk1281618.dtsi
index 3228119f91d1..b7b4211c5353 100644
--- a/arch/arm/boot/dts/ste-href-tvk1281618.dtsi
+++ b/arch/arm/boot/dts/ste-href-tvk1281618.dtsi
@@ -104,13 +104,40 @@ lsm303dlh@18 {
 					     <19 IRQ_TYPE_EDGE_RISING>;
 			};
 			lsm303dlh@1e {
-				/* Magnetometer */
+				/*
+				 * This magnetometer is packaged with
+				 * the accelerometer, and has a DRDY line,
+				 * however it is not connected on this
+				 * board so it can not generate interrupts.
+				 */
 				compatible = "st,lsm303dlh-magn";
 				reg = <0x1e>;
 				vdd-supply = <&ab8500_ldo_aux1_reg>;
 				vddio-supply = <&db8500_vsmps2_reg>;
+			};
+			lis331dl@1c {
+				/* Accelerometer */
+				compatible = "st,lis331dl-accel";
+				st,drdy-int-pin = <1>;
+				reg = <0x1c>;
+				vdd-supply = <&ab8500_ldo_aux1_reg>;
+				vddio-supply = <&db8500_vsmps2_reg>;
 				pinctrl-names = "default";
-				pinctrl-0 = <&magneto_tvk_mode>;
+				pinctrl-0 = <&accel_tvk_mode>;
+				interrupt-parent = <&gpio2>;
+				interrupts = <18 IRQ_TYPE_EDGE_RISING>,
+					     <19 IRQ_TYPE_EDGE_RISING>;
+			};
+			ak8974@0f {
+				/* Magnetometer */
+				compatible = "asahi-kasei,ak8974";
+				reg = <0x0f>;
+				vdd-supply = <&ab8500_ldo_aux1_reg>;
+				vddio-supply = <&db8500_vsmps2_reg>;
+				pinctrl-names = "default";
+				pinctrl-0 = <&gyro_magn_tvk_mode>;
+				interrupt-parent = <&gpio1>;
+				interrupts = <0 IRQ_TYPE_EDGE_RISING>;
 			};
 			l3g4200d@68 {
 				/* Gyroscope */
@@ -119,6 +146,10 @@ l3g4200d@68 {
 				reg = <0x68>;
 				vdd-supply = <&ab8500_ldo_aux1_reg>;
 				vddio-supply = <&db8500_vsmps2_reg>;
+				pinctrl-names = "default";
+				pinctrl-0 = <&gyro_magn_tvk_mode>;
+				interrupt-parent = <&gpio1>;
+				interrupts = <0 IRQ_TYPE_EDGE_RISING>;
 			};
 			lsp001wm@5c {
 				/* Barometer/pressure sensor */
@@ -159,17 +190,22 @@ accel_tvk_mode: accel_tvk {
 					/* Accelerometer interrupt lines 1 & 2 */
 					tvk_cfg {
 						pins = "GPIO82_C1", "GPIO83_D3";
-						ste,config = <&gpio_in_pu>;
+						ste,config = <&gpio_in_pd>;
 					};
 				};
 			};
-			magnetometer {
-				magneto_tvk_mode: magneto_tvk {
-					/* Magnetometer uses GPIO 31 and 32, pull these up/down respectively */
+			gyroscope {
+				/*
+				 * These lines are shared between Gyroscope l3g400dh
+				 * and AK8974 magnetometer.
+				 */
+				gyro_magn_tvk_mode: gyro_magn_tvk {
+					 /* GPIO 31 used for INT pull down the line */
 					tvk_cfg1 {
 						pins = "GPIO31_V3";
-						ste,config = <&gpio_in_pu>;
+						ste,config = <&gpio_in_pd>;
 					};
+					/* GPIO 32 used for DRDY, pull this down */
 					tvk_cfg2 {
 						pins = "GPIO32_V2";
 						ste,config = <&gpio_in_pd>;