Samsung YP-R0 LCD improvements

This patch adds to YP-R0 (and other future targets using Linux
framebuffer) the ability to use LCD_ENABLE to save some CPU cycles
while display is powered off.
This patch also changes the way to toggle LCD power: now using
a proper ioctl call, slightly more efficient.

Change-Id: I544de77f5abd4ac1c13d3fe3a6e40a30f7c0bece
Reviewed-on: http://gerrit.rockbox.org/410
Reviewed-by: Thomas Martitz <kugel@rockbox.org>

1 files changed, 4 insertions, 1 deletions

diff --git a/firmware/export/config/samsungypr0.h b/firmware/export/config/samsungypr0.h
index c81fc645bb..970879772f 100644
--- a/firmware/export/config/samsungypr0.h
+++ b/firmware/export/config/samsungypr0.h
@@ -21,9 +21,12 @@
 /* define this if you have a colour LCD */
 #define HAVE_LCD_COLOR
 
-/* define this if the LCD needs to be shutdown */
+/* Define this if the LCD can shut down */
 #define HAVE_LCD_SHUTDOWN
 
+/* define this if you have LCD enable function */
+#define HAVE_LCD_ENABLE
+
 /* define this if you want album art for this target */
 #define HAVE_ALBUMART