From f71d8d3e576e61345d0a9ce974cb16f7a8b535ba Mon Sep 17 00:00:00 2001
From: Jens Arnold <amiconn@rockbox.org>
Date: Thu, 11 Aug 2005 21:47:52 +0000
Subject: [PATCH] Backlight dimming: Don't unboost the CPU from within the isr.

git-svn-id: svn://svn.rockbox.org/rockbox/trunk@7310 a1c6a512-1295-4272-9138-f99709370657
---
 firmware/backlight.c | 11 +++++++++--
 1 file changed, 9 insertions(+), 2 deletions(-)

diff --git a/firmware/backlight.c b/firmware/backlight.c
index 8b5eb47518..55e3f44cc5 100644
--- a/firmware/backlight.c
+++ b/firmware/backlight.c
@@ -44,6 +44,7 @@ const char backlight_timeout_value[19] =
 #define BACKLIGHT_OFF 2
 #define REMOTE_BACKLIGHT_ON 3
 #define REMOTE_BACKLIGHT_OFF 4
+#define BACKLIGHT_UNBOOST_CPU 5
 
 static void backlight_thread(void);
 static long backlight_stack[DEFAULT_STACK_SIZE/sizeof(long)];
@@ -130,7 +131,7 @@ static void backlight_isr(void)
 
     if (idle) 
     {
-        cpu_boost(false);
+        queue_post(&backlight_queue, BACKLIGHT_UNBOOST_CPU, NULL);
         timer_unregister();
         bl_timer_active = false;
     }
@@ -293,7 +294,13 @@ void backlight_thread(void)
             case BACKLIGHT_OFF:
                 __backlight_off();
                 break;
-                
+
+#if CONFIG_BACKLIGHT == BL_IRIVER
+            case BACKLIGHT_UNBOOST_CPU:
+                cpu_boost(false);
+                break;
+#endif
+
             case SYS_USB_CONNECTED:
                 /* Tell the USB thread that we are safe */
                 DEBUGF("backlight_thread got SYS_USB_CONNECTED\n");