Add the Lily58 OLED.

app/boards/shields/lily58/Kconfig.defconfig

@@ -12,3 +12,40 @@ config ZMK_KEYBOARD_NAME
 	default "Lily58 Right"
 
 endif
+
+if SHIELD_LILY58_LEFT || SHIELD_LILY58_RIGHT
+
+if ZMK_DISPLAY
+
+config I2C
+	default y
+
+config SSD1306
+	default y
+
+endif # ZMK_DISPLAY
+
+if LVGL
+
+config LVGL_HOR_RES
+	default 128
+
+config LVGL_VER_RES
+	default 32
+
+config LVGL_VDB_SIZE
+	default 64
+
+config LVGL_DPI
+	default 148
+
+config LVGL_BITS_PER_PIXEL
+	default 1
+
+choice LVGL_COLOR_DEPTH
+	default LVGL_COLOR_DEPTH_1
+endchoice
+
+endif # LVGL
+
+endif

app/boards/shields/lily58/lily58.dtsi

@@ -44,7 +44,24 @@ RC(3,0) RC(3,1) RC(3,2) RC(3,3) RC(3,4) RC(3,5) RC(4,5) RC(4,6) RC(3,6) RC(3,7)
 			;
 		
 	};
-
-	// TODO: OLED node
 };
 
+&pro_micro_i2c {
+	status = "okay";
+
+	ssd1306@3c {
+		compatible = "solomon,ssd1306fb";
+		reg = <0x3c>;
+		label = "DISPLAY";
+		width = <128>;
+		height = <32>;
+		segment-offset = <0>;
+		page-offset = <0>;
+		display-offset = <0>;
+		multiplex-ratio = <31>;
+		segment-remap;
+		com-invdir;
+		com-sequential;
+		prechargep = <0x22>;
+	};
+};