arm: mx6: cm-fx6: add support for displaytype env var

Add support for selecting display preset using the environment variable
"displaytype". This is a preparation for future merging of compulab
omap3_display.c display selection code with the cm-fx6 display selection code.

The "panel" environment variable is retained for backwards compatibility.

Cc: Stefano Babic <sbabic@denx.de>
Cc: Igor Grinberg <grinberg@compulab.co.il>
Signed-off-by: Nikita Kiryanov <nikita@compulab.co.il>
Acked-by: Igor Grinberg <grinberg@compulab.co.il>

diff --git a/board/compulab/cm_fx6/cm_fx6.c b/board/compulab/cm_fx6/cm_fx6.c
index 2fb8db5e5884bf8bd77020069a1d9860d67d54ea..3e518c18d41d8d6ecbe2643b4cbbf57e09097ce3 100644 (file)
--- a/board/compulab/cm_fx6/cm_fx6.c
+++ b/board/compulab/cm_fx6/cm_fx6.c
@@ -95,7 +95,10 @@ int board_video_skip(void)
 {
        int ret;
        struct display_info_t *preset;
-       char const *panel = getenv("panel");
+       char const *panel = getenv("displaytype");
+
+       if (!panel) /* Also accept panel for backward compatibility */
+               panel = getenv("panel");
 
        if (!panel)
                return -ENOENT;