feat(nibble): add support for optional display ; off by default

app/boards/shields/nibble/Kconfig.defconfig

@@ -10,3 +10,39 @@ config ZMK_USB
 	default y
 
 endif
+
+if ZMK_DISPLAY
+
+config I2C
+	default y
+
+config SSD1306
+	default y
+
+config SSD1306_REVERSE_MODE
+	default y
+
+endif # ZMK_DISPLAY
+
+if LVGL
+
+config LVGL_HOR_RES_MAX
+	default 128
+
+config LVGL_VER_RES_MAX
+	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

app/boards/shields/nibble/nibble.overlay

@@ -54,3 +54,23 @@ RC(4,0) RC(4,1) RC(4,2) RC(4,3)                 RC(4,6)                 RC(4,9)
 		>;
 	};
 };
+
+&pro_micro_i2c {
+	status = "disabled";
+
+	oled: 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>;
+	};
+};