New kernel drivers and more (#560)

- Added kernel base drivers for: display, pointer (touch, mouse, etc.), keyboard, adc, power supply and backlight
- Implement new kernel driver modules: `st7789-module` and `gt911-module`
- Implement ESP32 ADC "oneshot" kernel driver
- Implement ESP32  backlight kernel driver with ledc API
- Implemented `battery-sense` driver that allows for voltage measurement and creates a power supply child device
- Updated github actions
- Updated flash scripts
- Fix for esp32 legacy driver conflict with ADC
- Created separate `lilygo-tdeck` and `lilygo-tdeck-plus` devices
- Created `lilygo-module` with LilyGO kernel drivers
- Fix for intermittent errors in build related to code generation of `devicetree.c`
- `lvgl-module` can now map kernel drivers onto LVGL devices
- Created `KernelDisplayApp` as a mirror of `HalDisplayApp` (formerly `DisplayApp`)
- Removed `struct` and `enum` prefix in a lot of kernel driver cpp source files
- `lilygo-tdeck` and `lilygo-tdeck-plus` are now fully relying on kernel drivers and don't use any of the old HAL

Devices/lilygo-tdeck/lilygo,tdeck.dts

@@ -1,22 +1,45 @@
 /dts-v1/;
 
+#include <tactility/bindings/battery_sense.h>
 #include <tactility/bindings/root.h>
+#include <tactility/bindings/esp32_adc_oneshot.h>
 #include <tactility/bindings/esp32_ble.h>
-#include <tactility/bindings/esp32_wifi_pinned.h>
 #include <tactility/bindings/esp32_gpio.h>
 #include <tactility/bindings/esp32_grove.h>
 #include <tactility/bindings/esp32_i2c.h>
 #include <tactility/bindings/esp32_i2s.h>
-#include <tactility/bindings/esp32_spi.h>
-#include <tactility/bindings/esp32_uart.h>
+#include <tactility/bindings/esp32_ledc_backlight.h>
 #include <tactility/bindings/esp32_sdspi.h>
-#include <tactility/bindings/display_placeholder.h>
+#include <tactility/bindings/esp32_spi.h>
+#include <tactility/bindings/esp32_wifi_pinned.h>
+#include <tactility/bindings/esp32_uart.h>
 
-// Reference: https://wiki.lilygo.cc/get_started/en/Wearable/T-Deck-Plus/T-Deck-Plus.html#Pin-Overview
+#include <bindings/gt911.h>
+#include <bindings/st7789.h>
+
+#include <lilygo/bindings/tdeck_keyboard.h>
+#include <lilygo/bindings/tdeck_keyboard_backlight.h>
+#include <lilygo/bindings/tdeck_trackball.h>
+
+// Reference: https://wiki.lilygo.cc/products/t-deck-series/t-deck/
 / {
 	compatible = "root";
 	model = "LilyGO T-Deck";
 
+	adc0 {
+		compatible = "espressif,esp32-adc-oneshot";
+		unit-id = <ADC_UNIT_1>;
+		clk-src = <ADC_RTC_CLK_SRC_DEFAULT>;
+		channels = <ADC_CHANNEL_3 ADC_ATTEN_DB_12 ADC_BITWIDTH_DEFAULT>;
+	};
+
+	battery-sense {
+		compatible = "battery-sense";
+		io-channel = <&adc0 0>;
+		reference-voltage-mv = <3300>;
+		multiplier = <2110>;
+	};
+
 	wifi0 {
 		compatible = "espressif,esp32-wifi-pinned";
 		status = "disabled";
@@ -32,12 +55,41 @@
 		gpio-count = <49>;
 	};
 
+	trackball {
+		compatible = "lilygo,tdeck-trackball";
+		pin-right = <&gpio0 2 GPIO_FLAG_NONE>;
+		pin-up = <&gpio0 3 GPIO_FLAG_NONE>;
+		pin-left = <&gpio0 1 GPIO_FLAG_NONE>;
+		pin-down = <&gpio0 15 GPIO_FLAG_NONE>;
+		pin-click = <&gpio0 0 GPIO_FLAG_NONE>;
+	};
+
 	i2c_internal: i2c0 {
 		compatible = "espressif,esp32-i2c";
 		port = <I2C_NUM_0>;
 		clock-frequency = <100000>;
 		pin-sda = <&gpio0 18 GPIO_FLAG_NONE>;
 		pin-scl = <&gpio0 8 GPIO_FLAG_NONE>;
+
+		touch {
+			compatible = "goodix,gt911";
+			reg = <0x5D>;
+			x-max = <240>;
+			y-max = <320>;
+			swap-xy;
+			mirror-x;
+			pin-interrupt = <&gpio0 16 GPIO_FLAG_NONE>;
+		};
+
+		keyboard {
+			compatible = "lilygo,tdeck-keyboard";
+			reg = <0x55>;
+		};
+
+		keyboard_backlight {
+			compatible = "lilygo,tdeck-keyboard-backlight";
+			reg = <0x55>;
+		};
 	};
 
 	i2s0 {
@@ -48,6 +100,17 @@
 		pin-data-out = <&gpio0 6 GPIO_FLAG_NONE>;
 	};
 
+	display_backlight {
+		compatible = "espressif,esp32-ledc-backlight";
+		// Off by default so dispaly power-on won't show the screen from before the last power loss.
+		// The display backlight is turned on during the boot process.
+		status = "disabled";
+		pin-backlight = <&gpio0 42 GPIO_FLAG_NONE>;
+		// 32 KHz and higher causes the screen to start dimming again above 80% brightness
+		// when moving the brightness slider rapidly from a lower setting to 100% (debug-traced, not a slider bug).
+		frequency-hz = <30000>;
+	};
+
 	spi0 {
 		compatible = "espressif,esp32-spi";
 		host = <SPI2_HOST>;
@@ -59,20 +122,32 @@
 		pin-sclk = <&gpio0 40 GPIO_FLAG_NONE>;
 
 		display@0 {
-			compatible = "display-placeholder";
+			compatible = "sitronix,st7789";
+			horizontal-resolution = <320>;
+			vertical-resolution = <240>;
+			swap-xy;
+			mirror-x;
+			invert-color;
+			pixel-clock-hz = <62500000>;
+			pin-dc = <&gpio0 11 GPIO_FLAG_NONE>;
+			backlight = <&display_backlight>;
 		};
 
+		// Must be started after display
 		sdcard@1 {
 			compatible = "espressif,esp32-sdspi";
-			status = "disabled"; // Must be started after display
+			status = "disabled";
 			frequency-khz = <20000>;
 		};
 	};
 
-	uart0 {
-		compatible = "espressif,esp32-uart";
-		port = <UART_NUM_1>;
-		pin-tx = <&gpio0 43 GPIO_FLAG_NONE>;
-		pin-rx = <&gpio0 44 GPIO_FLAG_NONE>;
+	grove0 {
+		compatible = "espressif,esp32-grove";
+		defaultMode = <GROVE_MODE_I2C>;
+		pinSdaTx = <&gpio0 43 GPIO_FLAG_NONE>;
+		pinSclRx = <&gpio0 44 GPIO_FLAG_NONE>;
+		uartPort = <UART_NUM_1>;
+		i2cPort = <I2C_NUM_1>;
+		i2cClockFrequency = <400000>;
 	};
 };