YH820: implement LCD sleep

use sleep setting to keep transflective LCD active without backlight

Change-Id: Iccd97e956d5e4a2a22abc90d15e9123782126ecb

1 files changed, 1 insertions, 4 deletions

diff --git a/firmware/target/arm/samsung/yh820/backlight-yh820.c b/firmware/target/arm/samsung/yh820/backlight-yh820.c
index b24f8128c4..c9309eebbe 100644
--- a/firmware/target/arm/samsung/yh820/backlight-yh820.c
+++ b/firmware/target/arm/samsung/yh820/backlight-yh820.c
@@ -28,7 +28,7 @@
 void backlight_hw_on(void)
 {
 #ifdef HAVE_LCD_SLEEP
-    backlight_lcd_sleep_countdown(false); /* stop counter */
+    lcd_awake(); /* power on lcd + visible display */
 #endif
 #ifdef HAVE_LCD_ENABLE
     lcd_enable(true); /* power on lcd + visible display */
@@ -42,7 +42,4 @@ void backlight_hw_off(void)
 #ifdef HAVE_LCD_ENABLE
     lcd_enable(false); /* power off visible display */
 #endif
-#ifdef HAVE_LCD_SLEEP
-    backlight_lcd_sleep_countdown(true); /* start countdown */
-#endif
 }