Device migrations, driver migrations and more (#575)

Devices/m5stack-sticks3/m5stack,sticks3.dts

@@ -11,7 +11,11 @@
 #include <bindings/m5pm1.h>
 #include <bindings/es8311.h>
 #include <tactility/bindings/esp32_sdspi.h>
-#include <tactility/bindings/display_placeholder.h>
+#include <tactility/bindings/esp32_pwm_ledc.h>
+#include <tactility/bindings/pwm_backlight.h>
+
+#include <bindings/st7789.h>
+#include <bindings/button_control.h>
 
 / {
 	compatible = "root";
@@ -53,6 +57,8 @@
 		m5pm1 {
 			compatible = "m5stack,m5pm1";
 			reg = <0x6E>;
+			power-supply-reference-voltage-mv = <4200>;
+			speaker-amp-enable-at-boot;
 		};
 
 		bmi270 {
@@ -75,18 +81,49 @@
 		pin-scl = <&gpio0 10 GPIO_FLAG_NONE>;
 	};
 
+	display_backlight_pwm {
+		compatible = "espressif,esp32-pwm-ledc";
+		pin = <&gpio0 38 GPIO_FLAG_NONE>;
+		period-ns = <1953125>;
+		ledc-timer = <0>;
+		ledc-channel = <0>;
+	};
+
+	display_backlight {
+		compatible = "pwm-backlight";
+		// Off by default so display 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";
+		pwm = <&display_backlight_pwm>;
+	};
+
 	spi0 {
 		compatible = "espressif,esp32-spi";
 		host = <SPI2_HOST>;
 		cs-gpios = <&gpio0 41 GPIO_FLAG_NONE>;
 		pin-mosi = <&gpio0 39 GPIO_FLAG_NONE>;
 		pin-sclk = <&gpio0 40 GPIO_FLAG_NONE>;
-	
-		display {
-			compatible = "display-placeholder";
+
+		display@0 {
+			compatible = "sitronix,st7789";
+			horizontal-resolution = <135>;
+			vertical-resolution = <240>;
+			gap-x = <52>;
+			gap-y = <40>;
+			invert-color;
+			pixel-clock-hz = <40000000>;
+			pin-dc = <&gpio0 45 GPIO_FLAG_NONE>;
+			pin-reset = <&gpio0 21 GPIO_FLAG_NONE>;
+			backlight = <&display_backlight>;
 		};
 	};
 
+	buttons {
+		compatible = "tactility,button-control";
+		pin-primary = <&gpio0 11 GPIO_FLAG_NONE>;
+		pin-secondary = <&gpio0 12 GPIO_FLAG_NONE>;
+	};
+
 	uart_grove: uart1 {
 		compatible = "espressif,esp32-uart";
 		status = "disabled";