sandbox: Add LCD driver

Add a simple LCD driver which uses SDL to display the image. We update the
image regularly, while still providing for reasonable performance.

Adjust the common lcd code to support sandbox.

For command-line runs we do not want the LCD to be displayed, so add a
--show_lcd option to enable it.

Tested-by: Che-Liang Chiou <[email protected]>
Signed-off-by: Simon Glass <[email protected]>

1 files changed, 13 insertions, 0 deletions

diff --git a/doc/device-tree-bindings/video/sandbox-fb.txt b/doc/device-tree-bindings/video/sandbox-fb.txt
new file mode 100644
index 00000000000..eb91b30e3f8
--- /dev/null
+++ b/doc/device-tree-bindings/video/sandbox-fb.txt
@@ -0,0 +1,13 @@
+Sandbox LCD
+===========
+
+This uses the displaymode.txt binding except that only xres and yres are
+required properties.
+
+Example:
+
+	lcd {
+		compatible = "sandbox,lcd-sdl";
+		xres = <800>;
+		yres = <600>;
+	};