apalis-imx6: move to one overlay per accessory

Move the existing overlays to dtsi files and include them into one
accessory dts.
Provide data-mapping timings appropriately for each machine instead
of the hardcoding and use a single overlay per SoC to avoid code
duplication.

Set the bus-format via toradex specific data-mapping property in
the machine specifig overlay.

Make sure the panel-dpi compatible is set correctly in the display
specific overlay.

While at it use new lines consistently and set sensible width and
height dimension for a fullHD analog RGB monitor.

Signed-off-by: Max Krummenacher <max.krummenacher@toradex.com>

1 files changed, 34 insertions, 0 deletions

diff --git a/overlays/apalis-imx6_display-vga-640x480_overlay.dtsi b/overlays/apalis-imx6_display-vga-640x480_overlay.dtsi
new file mode 100644
index 0000000..d9b36db
--- /dev/null
+++ b/overlays/apalis-imx6_display-vga-640x480_overlay.dtsi
@@ -0,0 +1,34 @@
+// SPDX-License-Identifier: GPL-2.0-or-later OR MIT
+/*
+ * Copyright 2022 Toradex
+ */
+
+// VGA Signal 640x480@60Hz Industry standard timing, display-enable
+// polarity set as required by the resistor ladder video DAC on the
+// Apalis iMX6.
+
+&{/vga-panel} {
+	compatible = "panel-dpi";
+	status = "okay";
+
+	/* for 0.3mm pixels */
+	width-mm = <192>;
+	height-mm = <144>;
+
+	panel-timing {
+		clock-frequency = <25175000>;
+		hactive = <640>;
+		vactive = <480>;
+		hsync-len = <96>;
+		hfront-porch = <16>;
+		hback-porch = <48>;
+		vsync-len = <2>;
+		vfront-porch = <10>;
+		vback-porch = <33>;
+
+		de-active = <0>;
+		hsync-active = <0>;
+		vsync-active = <0>;
+		pixelclk-active = <0>;
+	 };
+};