mirror of
https://github.com/raspberrypi/linux.git
synced 2025-12-06 01:49:46 +00:00
ecf040339a
In order to prevent confusing problems where pin configuration is not be applied, an upcoming change to the overlaycheck utility will add a check that all added pin groups are in some way referenced by the overlay. Before that can be done, it is necessary to ensure that all existing overlays pass that test. This patch modifies some overlays by adding the required "pinctrl-0" properties, but for others that are just setting GPIOs to inputs and outputs, where those same GPIOs are declared by <name>-gpios properties, it is better to drop the pin groups and let the GPIO subsystem set up the GPIOs as required. Removing this duplication may be helpful in the future should we ever decide to enable the exclusive GPIO vs pinctrl locking (.strict in struct pinmux_ops). See: https://forums.raspberrypi.com/viewtopic.php?t=393742 Signed-off-by: Phil Elwell <phil@raspberrypi.com>
210 lines
4.1 KiB
Plaintext
210 lines
4.1 KiB
Plaintext
/*
|
|
* tinylcd35-overlay.dts
|
|
*
|
|
* -------------------------------------------------
|
|
* www.tinlylcd.com
|
|
* -------------------------------------------------
|
|
* Device---Driver-----BUS GPIO's
|
|
* display tinylcd35 spi0.0 25 24 18
|
|
* touch ads7846 spi0.1 5
|
|
* rtc ds1307 i2c1-0068
|
|
* rtc pcf8563 i2c1-0051
|
|
* keypad gpio-keys --------- 17 22 27 23 28
|
|
*
|
|
*
|
|
* TinyLCD.com 3.5 inch TFT
|
|
*
|
|
* Version 001
|
|
* 5/3/2015 -- Noralf Trønnes Initial Device tree framework
|
|
* 10/3/2015 -- tinylcd@gmail.com added ds1307 support.
|
|
*
|
|
*/
|
|
|
|
/dts-v1/;
|
|
/plugin/;
|
|
|
|
/ {
|
|
compatible = "brcm,bcm2835";
|
|
|
|
fragment@0 {
|
|
target = <&spi0>;
|
|
__overlay__ {
|
|
status = "okay";
|
|
};
|
|
};
|
|
|
|
fragment@1 {
|
|
target = <&spidev0>;
|
|
__overlay__ {
|
|
status = "disabled";
|
|
};
|
|
};
|
|
|
|
fragment@2 {
|
|
target = <&spidev1>;
|
|
__overlay__ {
|
|
status = "disabled";
|
|
};
|
|
};
|
|
|
|
fragment@3 {
|
|
target = <&gpio>;
|
|
__overlay__ {
|
|
keypad_pins: keypad_pins {
|
|
brcm,pins = <4 17 22 23 27>;
|
|
brcm,function = <0>; /* in */
|
|
brcm,pull = <1>; /* down */
|
|
};
|
|
};
|
|
};
|
|
|
|
fragment@4 {
|
|
target = <&spi0>;
|
|
__overlay__ {
|
|
/* needed to avoid dtc warning */
|
|
#address-cells = <1>;
|
|
#size-cells = <0>;
|
|
|
|
tinylcd35: tinylcd35@0{
|
|
compatible = "neosec,tinylcd";
|
|
reg = <0>;
|
|
spi-max-frequency = <48000000>;
|
|
rotate = <270>;
|
|
fps = <20>;
|
|
bgr;
|
|
buswidth = <8>;
|
|
reset-gpios = <&gpio 25 1>;
|
|
dc-gpios = <&gpio 24 0>;
|
|
led-gpios = <&gpio 18 0>;
|
|
debug = <0>;
|
|
|
|
init = <0x10000B0 0x80
|
|
0x10000C0 0x0A 0x0A
|
|
0x10000C1 0x01 0x01
|
|
0x10000C2 0x33
|
|
0x10000C5 0x00 0x42 0x80
|
|
0x10000B1 0xD0 0x11
|
|
0x10000B4 0x02
|
|
0x10000B6 0x00 0x22 0x3B
|
|
0x10000B7 0x07
|
|
0x1000036 0x58
|
|
0x10000F0 0x36 0xA5 0xD3
|
|
0x10000E5 0x80
|
|
0x10000E5 0x01
|
|
0x10000B3 0x00
|
|
0x10000E5 0x00
|
|
0x10000F0 0x36 0xA5 0x53
|
|
0x10000E0 0x00 0x35 0x33 0x00 0x00 0x00 0x00 0x35 0x33 0x00 0x00 0x00
|
|
0x100003A 0x55
|
|
0x1000011
|
|
0x2000001
|
|
0x1000029>;
|
|
};
|
|
|
|
tinylcd35_ts: tinylcd35_ts@1 {
|
|
compatible = "ti,ads7846";
|
|
reg = <1>;
|
|
status = "disabled";
|
|
|
|
spi-max-frequency = <2000000>;
|
|
interrupts = <5 2>; /* high-to-low edge triggered */
|
|
interrupt-parent = <&gpio>;
|
|
pendown-gpio = <&gpio 5 1>;
|
|
ti,x-plate-ohms = /bits/ 16 <100>;
|
|
ti,pressure-max = /bits/ 16 <255>;
|
|
};
|
|
};
|
|
};
|
|
|
|
/* RTC */
|
|
|
|
fragment@5 {
|
|
target = <&i2c1>;
|
|
__dormant__ {
|
|
#address-cells = <1>;
|
|
#size-cells = <0>;
|
|
|
|
status = "okay";
|
|
|
|
pcf8563: pcf8563@51 {
|
|
compatible = "nxp,pcf8563";
|
|
reg = <0x51>;
|
|
status = "okay";
|
|
};
|
|
};
|
|
};
|
|
|
|
fragment@6 {
|
|
target = <&i2c1>;
|
|
__dormant__ {
|
|
#address-cells = <1>;
|
|
#size-cells = <0>;
|
|
|
|
status = "okay";
|
|
|
|
ds1307: ds1307@68 {
|
|
compatible = "dallas,ds1307";
|
|
reg = <0x68>;
|
|
status = "okay";
|
|
};
|
|
};
|
|
};
|
|
|
|
/*
|
|
* Values for input event code is found under the
|
|
* 'Keys and buttons' heading in include/uapi/linux/input.h
|
|
*/
|
|
fragment@7 {
|
|
target-path = "/soc";
|
|
__overlay__ {
|
|
keypad: keypad {
|
|
compatible = "gpio-keys";
|
|
pinctrl-names = "default";
|
|
pinctrl-0 = <&keypad_pins>;
|
|
status = "disabled";
|
|
autorepeat;
|
|
|
|
button@17 {
|
|
label = "GPIO KEY_UP";
|
|
linux,code = <103>;
|
|
gpios = <&gpio 17 0>;
|
|
};
|
|
button@22 {
|
|
label = "GPIO KEY_DOWN";
|
|
linux,code = <108>;
|
|
gpios = <&gpio 22 0>;
|
|
};
|
|
button@27 {
|
|
label = "GPIO KEY_LEFT";
|
|
linux,code = <105>;
|
|
gpios = <&gpio 27 0>;
|
|
};
|
|
button@23 {
|
|
label = "GPIO KEY_RIGHT";
|
|
linux,code = <106>;
|
|
gpios = <&gpio 23 0>;
|
|
};
|
|
button@4 {
|
|
label = "GPIO KEY_ENTER";
|
|
linux,code = <28>;
|
|
gpios = <&gpio 4 0>;
|
|
};
|
|
};
|
|
};
|
|
};
|
|
|
|
__overrides__ {
|
|
speed = <&tinylcd35>,"spi-max-frequency:0";
|
|
rotate = <&tinylcd35>,"rotate:0";
|
|
fps = <&tinylcd35>,"fps:0";
|
|
debug = <&tinylcd35>,"debug:0";
|
|
touch = <&tinylcd35_ts>,"status";
|
|
touchgpio = <&tinylcd35_ts>,"interrupts:0",
|
|
<&tinylcd35_ts>,"pendown-gpio:4";
|
|
xohms = <&tinylcd35_ts>,"ti,x-plate-ohms;0";
|
|
rtc-pcf = <0>,"=5";
|
|
rtc-ds = <0>,"=6";
|
|
keypad = <&keypad>,"status";
|
|
};
|
|
};
|