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linux/arch/arm/boot/dts/omap4-droid4-xt894.dts
Tony Lindgren 0526364ce4 ARM: dts: omap4-droid4: Add touchscreen 
Droid4's touchscreen can be used with mainline's maxtouch driver. The
touchscreen's lower area is used for four soft buttons (KEY_MENU,
KEY_HOME, KEY_BACK, KEY_SEARCH), but that does not seem to be currently
supported by the mainline kernel.

The mxt224 configuration can be saved with "mxt-app" for the kernel
to load. It can be saved after the first boot with:

# mxt-app -d i2c-dev:1-004a --save /lib/firmware/maxtouch.cfg

Where the mxt-app can be found at:

https://github.com/atmel-maxtouch/mxt-app

The firmware for the droid 4 mxt224 comes with GPLv2 license in the
Motorola Linux kernel sources. This firmware can be dumped out with
"droid4-touchscreen-firmware" program at:

https://github.com/tmlind/droid4-touchscreen-firmware

The related LCD patches are still pending, but when merged,
the touchscreen can be rotated in X with something like:

# xrandr --output DSI-1 --rotate right
# xinput set-prop 6 'Coordinate Transformation Matrix' \
	0 1 0 -1 0 1 0 0 1

For now, we rely on a gpio-hog but later on we can add the reset
gpio handling to the driver and have it load the maxtouch.cfg and
maxtouch.fw on boot.

This patch is based on combined similar patches done by me and
Sebastian.

Signed-off-by: Sebastian Reichel <sre@kernel.org>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2017-03-06 08:04:30 -08:00

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/*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*/
/dts-v1/;
#include <dt-bindings/input/input.h>
#include "omap443x.dtsi"
#include "motorola-cpcap-mapphone.dtsi"
/ {
model = "Motorola Droid 4 XT894";
compatible = "motorola,droid4", "ti,omap4430", "ti,omap4";
chosen {
stdout-path = &uart3;
};
/*
* We seem to have only 1021 MB accessible, 1021 - 1022 is locked,
* then 1023 - 1024 seems to contain mbm. For SRAM, see the notes
* below about SRAM and L3_ICLK2 being unused by default,
*/
memory {
device_type = "memory";
reg = <0x80000000 0x3fd00000>; /* 1021 MB */
};
/* This is probably coming straight from the battery.. */
wl12xx_vmmc: regulator-wl12xx {
compatible = "regulator-fixed";
regulator-name = "vwl1271";
regulator-min-microvolt = <1650000>;
regulator-max-microvolt = <1650000>;
gpio = <&gpio3 30 GPIO_ACTIVE_HIGH>; /* gpio94 */
startup-delay-us = <70000>;
enable-active-high;
};
gpio_keys {
compatible = "gpio-keys";
volume_down {
label = "Volume Down";
gpios = <&gpio5 26 GPIO_ACTIVE_LOW>; /* gpio154 */
linux,code = <KEY_VOLUMEDOWN>;
linux,can-disable;
};
slider {
label = "Keypad Slide";
gpios = <&gpio4 26 GPIO_ACTIVE_HIGH>; /* gpio122 */
linux,input-type = <EV_SW>;
linux,code = <SW_KEYPAD_SLIDE>;
linux,can-disable;
};
};
};
&gpio6 {
touchscreen_reset {
gpio-hog;
gpios = <13 0>;
output-high;
line-name = "touchscreen-reset";
};
};
/* L3_2 interconnect is unused, SRAM, GPMC and L3_ICLK2 disabled */
&gpmc {
status = "disabled";
};
&keypad {
keypad,num-rows = <8>;
keypad,num-columns = <8>;
linux,keymap = <
/* Row 1 */
MATRIX_KEY(0, 2, KEY_1)
MATRIX_KEY(0, 6, KEY_2)
MATRIX_KEY(2, 3, KEY_3)
MATRIX_KEY(0, 7, KEY_4)
MATRIX_KEY(0, 4, KEY_5)
MATRIX_KEY(5, 5, KEY_6)
MATRIX_KEY(0, 1, KEY_7)
MATRIX_KEY(0, 5, KEY_8)
MATRIX_KEY(0, 0, KEY_9)
MATRIX_KEY(1, 6, KEY_0)
/* Row 2 */
MATRIX_KEY(3, 4, KEY_APOSTROPHE)
MATRIX_KEY(7, 6, KEY_Q)
MATRIX_KEY(7, 7, KEY_W)
MATRIX_KEY(7, 2, KEY_E)
MATRIX_KEY(1, 0, KEY_R)
MATRIX_KEY(4, 4, KEY_T)
MATRIX_KEY(1, 2, KEY_Y)
MATRIX_KEY(6, 7, KEY_U)
MATRIX_KEY(2, 2, KEY_I)
MATRIX_KEY(5, 6, KEY_O)
MATRIX_KEY(3, 7, KEY_P)
MATRIX_KEY(6, 5, KEY_BACKSPACE)
/* Row 3 */
MATRIX_KEY(5, 4, KEY_TAB)
MATRIX_KEY(5, 7, KEY_A)
MATRIX_KEY(2, 7, KEY_S)
MATRIX_KEY(7, 0, KEY_D)
MATRIX_KEY(2, 6, KEY_F)
MATRIX_KEY(6, 2, KEY_G)
MATRIX_KEY(6, 6, KEY_H)
MATRIX_KEY(1, 4, KEY_J)
MATRIX_KEY(3, 1, KEY_K)
MATRIX_KEY(2, 1, KEY_L)
MATRIX_KEY(4, 6, KEY_ENTER)
/* Row 4 */
MATRIX_KEY(3, 6, KEY_LEFTSHIFT) /* KEY_CAPSLOCK */
MATRIX_KEY(6, 1, KEY_Z)
MATRIX_KEY(7, 4, KEY_X)
MATRIX_KEY(5, 1, KEY_C)
MATRIX_KEY(1, 7, KEY_V)
MATRIX_KEY(2, 4, KEY_B)
MATRIX_KEY(4, 1, KEY_N)
MATRIX_KEY(1, 1, KEY_M)
MATRIX_KEY(3, 5, KEY_COMMA)
MATRIX_KEY(5, 2, KEY_DOT)
MATRIX_KEY(6, 3, KEY_UP)
MATRIX_KEY(7, 3, KEY_OK)
/* Row 5 */
MATRIX_KEY(2, 5, KEY_LEFTCTRL) /* KEY_LEFTSHIFT */
MATRIX_KEY(4, 5, KEY_LEFTALT) /* SYM */
MATRIX_KEY(6, 0, KEY_MINUS)
MATRIX_KEY(4, 7, KEY_EQUAL)
MATRIX_KEY(1, 5, KEY_SPACE)
MATRIX_KEY(3, 2, KEY_SLASH)
MATRIX_KEY(4, 3, KEY_LEFT)
MATRIX_KEY(5, 3, KEY_DOWN)
MATRIX_KEY(3, 3, KEY_RIGHT)
/* Side buttons, KEY_VOLUMEDOWN and KEY_PWER are on CPCAP? */
MATRIX_KEY(5, 0, KEY_VOLUMEUP)
>;
};
&mmc1 {
vmmc-supply = <&vsimcard>;
bus-width = <4>;
cd-gpios = <&gpio4 10 GPIO_ACTIVE_LOW>; /* gpio106 */
};
&mmc2 {
vmmc-supply = <&vsdio>;
bus-width = <8>;
non-removable;
};
&mmc3 {
vmmc-supply = <&wl12xx_vmmc>;
interrupts-extended = <&wakeupgen GIC_SPI 94 IRQ_TYPE_LEVEL_HIGH
&omap4_pmx_core 0xde>;
non-removable;
bus-width = <4>;
cap-power-off-card;
#address-cells = <1>;
#size-cells = <0>;
wlcore: wlcore@2 {
compatible = "ti,wl1283";
reg = <2>;
interrupt-parent = <&gpio4>;
interrupts = <4 IRQ_TYPE_LEVEL_HIGH>; /* gpio100 */
ref-clock-frequency = <26000000>;
tcxo-clock-frequency = <26000000>;
};
};
/*
* REVISIT: Add gpio173 reset pin handling to the driver, see gpio-hog above.
* If the GPIO reset is used, we probably need to have /lib/firmware/maxtouch.fw
* available. See "mxt-app" and "droid4-touchscreen-firmware" tools for more
* information.
*/
&i2c2 {
tsp@4a {
compatible = "atmel,maxtouch";
reg = <0x4a>;
pinctrl-names = "default";
pinctrl-0 = <&touchscreen_pins>;
/* gpio_183 with sys_nirq2 pad as wakeup */
interrupts-extended = <&gpio6 23 IRQ_TYPE_EDGE_FALLING
&omap4_pmx_core 0x160>;
interrupt-names = "irq", "wakeup";
wakeup-source;
};
};
/* L3_2 interconnect is unused, SRAM, GPMC and L3_ICLK2 disabled */
&ocmcram {
status = "disabled";
};
&omap4_pmx_core {
usb_gpio_mux_sel1: pinmux_usb_gpio_mux_sel1_pins {
/* gpio_60 */
pinctrl-single,pins = <
OMAP4_IOPAD(0x088, PIN_OUTPUT | MUX_MODE3)
>;
};
touchscreen_pins: pinmux_touchscreen_pins {
pinctrl-single,pins = <
OMAP4_IOPAD(0x1a0, PIN_INPUT_PULLUP | MUX_MODE3)
>;
};
usb_ulpi_pins: pinmux_usb_ulpi_pins {
pinctrl-single,pins = <
OMAP4_IOPAD(0x196, MUX_MODE7)
OMAP4_IOPAD(0x198, MUX_MODE7)
OMAP4_IOPAD(0x1b2, PIN_INPUT_PULLUP | MUX_MODE0)
OMAP4_IOPAD(0x1b4, PIN_INPUT_PULLUP | MUX_MODE0)
OMAP4_IOPAD(0x1b6, PIN_INPUT_PULLUP | MUX_MODE0)
OMAP4_IOPAD(0x1b8, PIN_INPUT_PULLUP | MUX_MODE0)
OMAP4_IOPAD(0x1ba, PIN_INPUT_PULLUP | MUX_MODE0)
OMAP4_IOPAD(0x1bc, PIN_INPUT_PULLUP | MUX_MODE0)
OMAP4_IOPAD(0x1be, PIN_INPUT_PULLUP | MUX_MODE0)
OMAP4_IOPAD(0x1c0, PIN_INPUT_PULLUP | MUX_MODE0)
OMAP4_IOPAD(0x1c2, PIN_INPUT_PULLUP | MUX_MODE0)
OMAP4_IOPAD(0x1c4, PIN_INPUT_PULLUP | MUX_MODE0)
OMAP4_IOPAD(0x1c6, PIN_INPUT_PULLUP | MUX_MODE0)
OMAP4_IOPAD(0x1c8, PIN_INPUT_PULLUP | MUX_MODE0)
>;
};
/* usb0_otg_dp and usb0_otg_dm */
usb_utmi_pins: pinmux_usb_utmi_pins {
pinctrl-single,pins = <
OMAP4_IOPAD(0x196, PIN_INPUT | MUX_MODE0)
OMAP4_IOPAD(0x198, PIN_INPUT | MUX_MODE0)
OMAP4_IOPAD(0x1b2, PIN_INPUT_PULLUP | MUX_MODE7)
OMAP4_IOPAD(0x1b4, PIN_INPUT_PULLUP | MUX_MODE7)
OMAP4_IOPAD(0x1b6, PIN_INPUT_PULLUP | MUX_MODE7)
OMAP4_IOPAD(0x1b8, PIN_INPUT_PULLUP | MUX_MODE7)
OMAP4_IOPAD(0x1ba, PIN_INPUT_PULLUP | MUX_MODE7)
OMAP4_IOPAD(0x1bc, PIN_INPUT_PULLUP | MUX_MODE7)
OMAP4_IOPAD(0x1be, PIN_INPUT_PULLUP | MUX_MODE7)
OMAP4_IOPAD(0x1c0, PIN_INPUT_PULLUP | MUX_MODE7)
OMAP4_IOPAD(0x1c2, PIN_INPUT_PULLUP | MUX_MODE7)
OMAP4_IOPAD(0x1c4, PIN_INPUT_PULLUP | MUX_MODE7)
OMAP4_IOPAD(0x1c6, PIN_INPUT_PULLUP | MUX_MODE7)
OMAP4_IOPAD(0x1c8, PIN_INPUT_PULLUP | MUX_MODE7)
>;
};
/* uart3_tx_irtx and uart3_rx_irrx */
uart3_pins: pinmux_uart3_pins {
pinctrl-single,pins = <
OMAP4_IOPAD(0x196, MUX_MODE7)
OMAP4_IOPAD(0x198, MUX_MODE7)
OMAP4_IOPAD(0x1b2, PIN_INPUT_PULLUP | MUX_MODE7)
OMAP4_IOPAD(0x1b4, PIN_INPUT_PULLUP | MUX_MODE7)
OMAP4_IOPAD(0x1b6, PIN_INPUT_PULLUP | MUX_MODE7)
OMAP4_IOPAD(0x1b8, PIN_INPUT_PULLUP | MUX_MODE7)
OMAP4_IOPAD(0x1ba, MUX_MODE2)
OMAP4_IOPAD(0x1bc, PIN_INPUT | MUX_MODE2)
OMAP4_IOPAD(0x1be, PIN_INPUT_PULLUP | MUX_MODE7)
OMAP4_IOPAD(0x1c0, PIN_INPUT_PULLUP | MUX_MODE7)
OMAP4_IOPAD(0x1c2, PIN_INPUT_PULLUP | MUX_MODE7)
OMAP4_IOPAD(0x1c4, PIN_INPUT_PULLUP | MUX_MODE7)
OMAP4_IOPAD(0x1c6, PIN_INPUT_PULLUP | MUX_MODE7)
OMAP4_IOPAD(0x1c8, PIN_INPUT_PULLUP | MUX_MODE7)
>;
};
};
&omap4_pmx_wkup {
usb_gpio_mux_sel2: pinmux_usb_gpio_mux_sel2_pins {
/* gpio_wk0 */
pinctrl-single,pins = <
OMAP4_IOPAD(0x040, PIN_OUTPUT_PULLDOWN | MUX_MODE3)
>;
};
};
&uart3 {
interrupts-extended = <&wakeupgen GIC_SPI 74 IRQ_TYPE_LEVEL_HIGH
&omap4_pmx_core 0x17c>;
};
/* Internal UTMI+ PHY used for OTG, CPCAP ULPI PHY for detection and charger */
&usb_otg_hs {
interface-type = <1>;
mode = <3>;
power = <50>;
};
&i2c4 {
ak8975: magnetometer@c {
compatible = "asahi-kasei,ak8975";
reg = <0x0c>;
vdd-supply = <&vhvio>;
interrupt-parent = <&gpio6>;
interrupts = <15 IRQ_TYPE_EDGE_RISING>; /* gpio175 */
rotation-matrix = "-1", "0", "0",
"0", "1", "0",
"0", "0", "-1";
};
lis3dh: accelerometer@18 {
compatible = "st,lis3dh-accel";
reg = <0x18>;
vdd-supply = <&vhvio>;
interrupt-parent = <&gpio2>;
interrupts = <2 IRQ_TYPE_EDGE_BOTH>; /* gpio34 */
rotation-matrix = "0", "-1", "0",
"1", "0", "0",
"0", "0", "1";
};
};
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