linux/arch/arm/boot/dts/ste-nomadik-nhk15.dts
Linus Walleij cffbb02daf ARM: dts: nomadik: Augment NHK15 panel setting
The NHK15 panel is specified inside the display controller,
which works for the DPI-type DT parsing the old fbdev code
used, but for the DRM driver it needs to be spawn as its own
device, so we move it out of the display controller.

We also drop the panel timings: this should be determined
by the hardware or a device-specific compatible string, not
by this type of encoding into the device tree. It turns out
that this hardware is strapped to the right configuration
at boot already and we the driver just reads out the
hardware-specified resolution and timings. Drop the
"panel,dpi" compatible string altogether.

Fix a comment error in the DTS file while we're at it.

Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2019-01-11 20:14:43 +01:00

273 lines
6.2 KiB
Plaintext

// SPDX-License-Identifier: GPL-2.0
/*
* Device Tree for the ST Microelectronics Nomadik NHK8815 board
*/
/dts-v1/;
#include <dt-bindings/interrupt-controller/irq.h>
#include <dt-bindings/gpio/gpio.h>
#include "ste-nomadik-stn8815.dtsi"
/ {
model = "Nomadik STN8815NHK";
compatible = "st,nomadik-nhk-15";
chosen {
bootargs = "root=/dev/ram0 console=ttyAMA1,115200n8 earlyprintk";
};
aliases {
serial0 = &uart0;
serial1 = &uart1;
stmpe-i2c0 = &stmpe0;
stmpe-i2c1 = &stmpe1;
};
pinctrl {
uart0 {
uart0_nhk_mode: uart0_mux {
u0_default_mux {
function = "u0";
groups = "u0txrx_a_1", "u0ctsrts_a_1";
};
};
};
stmpe2401_1 {
stmpe2401_1_nhk_mode: stmpe2401_1_nhk {
nhk_cfg1 {
pins = "GPIO76_B20"; // IRQ line
ste,input = <0>;
};
nhk_cfg2 {
pins = "GPIO77_B8"; // reset line
ste,output = <1>;
};
};
};
stmpe2401_2 {
stmpe2401_2_nhk_mode: stmpe2401_2_nhk {
nhk_cfg1 {
pins = "GPIO78_A8"; // IRQ line
ste,input = <0>;
};
nhk_cfg2 {
pins = "GPIO79_C9"; // reset line
ste,output = <1>;
};
};
};
lis3lv02dl {
lis3lv02dl_nhk_mode: lis3lv02dl_nhk {
nhk_cfg1 {
pins = "GPIO82_C10"; // IRQ line
ste,input = <0>;
};
};
};
};
src@101e0000 {
/* These chrystal outputs are not used on this board */
disable-sxtalo;
disable-mxtalo;
};
/* This is where the interrupt is routed on the NHK-15 debug board */
external-bus@34000000 {
compatible = "simple-bus";
reg = <0x34000000 0x1000000>;
#address-cells = <1>;
#size-cells = <1>;
ranges = <0 0x34000000 0x1000000>;
ethernet@300 {
compatible = "smsc,lan91c111";
reg = <0x300 0x0fd00>;
reg-io-width = <2>;
reset-gpios = <&stmpe_gpio44 10 GPIO_ACTIVE_HIGH>;
interrupt-parent = <&stmpe_gpio44>;
interrupts = <11 IRQ_TYPE_EDGE_RISING>;
};
};
i2c0 {
lis3lv02dl@1d {
/* Accelerometer */
compatible = "st,lis3lv02dl-accel";
interrupt-parent = <&gpio2>;
interrupts = <18 IRQ_TYPE_EDGE_RISING>; // GPIO 82
pinctrl-0 = <&lis3lv02dl_nhk_mode>;
pinctrl-names = "default";
reg = <0x1d>;
};
stmpe0: stmpe2401@43 {
compatible = "st,stmpe2401";
reg = <0x43>;
reset-gpios = <&gpio2 13 GPIO_ACTIVE_LOW>; // GPIO77
interrupts = <12 IRQ_TYPE_EDGE_FALLING>; // GPIO76
interrupt-parent = <&gpio2>;
interrupt-controller;
wakeup-source;
pinctrl-names = "default";
pinctrl-0 = <&stmpe2401_1_nhk_mode>;
stmpe_gpio43: stmpe_gpio {
compatible = "st,stmpe-gpio";
gpio-controller;
#gpio-cells = <2>;
interrupt-controller;
#interrupt-cells = <2>;
/* Some pins in alternate functions */
st,norequest-mask = <0xf0f002>;
};
stmpe_keypad {
compatible = "st,stmpe-keypad";
debounce-interval = <64>;
st,scan-count = <8>;
st,no-autorepeat;
keypad,num-rows = <8>;
keypad,num-columns = <8>;
linux,keymap = <0x00020072 // Vol down
0x00030073 // Vol up
0x0100009e // Back
0x010100e3 // TV out
0x01020098 // Lock
0x0103013b // Start
0x020000a3 // Next
0x020100a4 // Play
0x020200a5 // Prev
0x02030160 // OK
0x03000069 // Left
0x0301006a // Right
0x03020067 // Up
0x0303006c>; // Down
};
stmpe0_pwm: stmpe_pwm {
compatible = "st,stmpe-pwm";
#pwm-cells = <2>;
};
};
stmpe1: stmpe2401@44 {
compatible = "st,stmpe2401";
reg = <0x44>;
reset-gpios = <&gpio2 15 GPIO_ACTIVE_LOW>; // GPIO79
interrupts = <14 IRQ_TYPE_EDGE_FALLING>; // GPIO78
interrupt-parent = <&gpio2>;
interrupt-controller;
wakeup-source;
pinctrl-names = "default";
pinctrl-0 = <&stmpe2401_2_nhk_mode>;
stmpe_gpio44: stmpe_gpio {
compatible = "st,stmpe-gpio";
gpio-controller;
#gpio-cells = <2>;
interrupt-controller;
#interrupt-cells = <2>;
/*
* This will turn off SATA so that MMC/SD
* can thrive
*/
mmcsd-gpio {
gpio-hog;
gpios = <2 0x0>;
output-low;
line-name = "SATA EN";
};
};
};
};
amba {
clcd@10120000 {
status = "okay";
pinctrl-names = "default";
pinctrl-0 = <&clcd_24bit_mux>;
port {
nomadik_clcd: endpoint {
remote-endpoint = <&nomadik_clcd_panel>;
arm,pl11x,tft-r0g0b0-pads = <16 8 0>;
};
};
};
/* Activate RX/TX and CTS/RTS on UART 0 */
uart0: uart@101fd000 {
pinctrl-names = "default";
pinctrl-0 = <&uart0_nhk_mode>;
status = "okay";
};
mmcsd: sdi@101f6000 {
cd-gpios = <&stmpe_gpio44 7 GPIO_ACTIVE_LOW>;
wp-gpios = <&stmpe_gpio44 18 GPIO_ACTIVE_HIGH>;
};
};
spi {
compatible = "spi-gpio";
#address-cells = <1>;
#size-cells = <0>;
/*
* As we're dealing with 3wire SPI, we only define SCK
* and MOSI (in the spec MOSI is called "SDA").
*/
gpio-sck = <&gpio0 5 GPIO_ACTIVE_HIGH>;
gpio-mosi = <&gpio0 4 GPIO_ACTIVE_HIGH>;
/*
* It's not actually active high, but the frameworks assume
* the polarity of the passed-in GPIO is "normal" (active
* high) then actively drives the line low to select the
* chip.
*/
cs-gpios = <&gpio0 6 GPIO_ACTIVE_HIGH>;
num-chipselects = <1>;
/*
* WVGA connector 21
* WVGA (800x480): 4.3" TPG110 TDO43MTEA2 24-bit RGB
* with TPO touch screen.
*/
panel: display@0 {
/*
* The TPO display driver is connected to a
* 5.7" OSD OSD057VA01CT TFT display.
*/
compatible = "tpo,tpg110";
reg = <0>;
spi-3wire;
/* 320 ns min period ~= 3 MHz */
spi-max-frequency = <3000000>;
/* Width and height from the OSD data sheet */
width-mm = <116>;
height-mm = <87>;
grestb-gpios = <&stmpe_gpio44 5 GPIO_ACTIVE_LOW>;
backlight = <&bl>;
port {
nomadik_clcd_panel: endpoint {
remote-endpoint = <&nomadik_clcd>;
};
};
};
};
bl: backlight {
compatible = "pwm-backlight";
pwms = <&stmpe0_pwm 0 500000>;
pwm-names = "backlight";
brightness-levels = <
0 1 2 3 4 5 6 7 8 9
10 11 12 13 14 15 16 17 18 19
20 21 22 23 24 25 26 27 28 29
30 31 32 33 34 35 36 37 38 39
40 41 42 43 44 45 46 47 48 49
50 51 52 53 54 55 56 57 58 59
60 61 62 63 64 65 66 67 68 69
70 71 72 73 74 75 76 77 78 79
80 81 82 83 84 85 86 87 88 89
90 91 92 93 94 95 96 97 98 99
100
>;
default-brightness-level = <100>;
};
};