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dts: overlay: add support for MZ61581 display

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Add Device Tree overlay for MZ61581 display by Tontec.

Signed-off-by: Noralf Trønnes <noralf@tronnes.org>
This commit is contained in:
Noralf Trønnes
2015-03-07 20:39:30 +01:00
committed by popcornmix
parent 27146e2543
commit 4f2bbfbc4e
2 changed files with 110 additions and 0 deletions
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1
arch/arm/boot/dts/Makefile
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@@ -25,6 +25,7 @@ dtb-$(RPI_DT_OVERLAYS) += hy28b-overlay.dtb
dtb-$(RPI_DT_OVERLAYS) += iqaudio-dac-overlay.dtb
dtb-$(RPI_DT_OVERLAYS) += iqaudio-dacplus-overlay.dtb
dtb-$(RPI_DT_OVERLAYS) += lirc-rpi-overlay.dtb
dtb-$(RPI_DT_OVERLAYS) += mz61581-overlay.dtb
dtb-$(RPI_DT_OVERLAYS) += pcf2127-rtc-overlay.dtb
dtb-$(RPI_DT_OVERLAYS) += pcf8523-rtc-overlay.dtb
dtb-$(RPI_DT_OVERLAYS) += piscreen-overlay.dtb

109
arch/arm/boot/dts/mz61581-overlay.dts Normal file
View File

@@ -0,0 +1,109 @@
/*
* Device Tree overlay for MZ61581-PI-EXT 2014.12.28 by Tontec
*
*/
/dts-v1/;
/plugin/;
/ {
compatible = "brcm,bcm2835", "brcm,bcm2708", "brcm,bcm2709";
fragment@0 {
target = <&spi0>;
__overlay__ {
status = "okay";
spidev@0{
status = "disabled";
};
spidev@1{
status = "disabled";
};
};
};
fragment@1 {
target = <&gpio>;
__overlay__ {
mz61581_pins: mz61581_pins {
brcm,pins = <4 15 18 25>;
brcm,function = <0 1 1 1>; /* in out out out */
};
};
};
fragment@2 {
target = <&spi0>;
__overlay__ {
/* needed to avoid dtc warning */
#address-cells = <1>;
#size-cells = <0>;
mz61581: mz61581@0{
compatible = "samsung,s6d02a1";
reg = <0>;
pinctrl-names = "default";
pinctrl-0 = <&mz61581_pins>;
spi-max-frequency = <128000000>;
spi-cpol;
spi-cpha;
width = <320>;
height = <480>;
rotate = <270>;
bgr;
fps = <30>;
buswidth = <8>;
reset-gpios = <&gpio 15 0>;
dc-gpios = <&gpio 25 0>;
led-gpios = <&gpio 18 0>;
init = <0x10000b0 00
0x1000011
0x20000ff
0x10000b3 0x02 0x00 0x00 0x00
0x10000c0 0x13 0x3b 0x00 0x02 0x00 0x01 0x00 0x43
0x10000c1 0x08 0x16 0x08 0x08
0x10000c4 0x11 0x07 0x03 0x03
0x10000c6 0x00
0x10000c8 0x03 0x03 0x13 0x5c 0x03 0x07 0x14 0x08 0x00 0x21 0x08 0x14 0x07 0x53 0x0c 0x13 0x03 0x03 0x21 0x00
0x1000035 0x00
0x1000036 0xa0
0x100003a 0x55
0x1000044 0x00 0x01
0x10000d0 0x07 0x07 0x1d 0x03
0x10000d1 0x03 0x30 0x10
0x10000d2 0x03 0x14 0x04
0x1000029
0x100002c>;
/* This is a workaround to make sure the init sequence slows down and doesn't fail */
debug = <3>;
};
mz61581_ts: mz61581_ts@1 {
compatible = "ti,ads7846";
reg = <1>;
spi-max-frequency = <2000000>;
interrupts = <4 2>; /* high-to-low edge triggered */
interrupt-parent = <&gpio>;
pendown-gpio = <&gpio 4 0>;
ti,x-plate-ohms = /bits/ 16 <60>;
ti,pressure-max = /bits/ 16 <255>;
};
};
};
__overrides__ {
speed = <&mz61581>, "spi-max-frequency:0";
rotate = <&mz61581>, "rotate:0";
fps = <&mz61581>, "fps:0";
debug = <&mz61581>, "debug:0";
xohms = <&mz61581_ts>,"ti,x-plate-ohms;0";
};
};