6 files changed, 5 insertions, 26 deletions

diff --git a/apps/lang/english.lang b/apps/lang/english.lang
index 35f71b903c..9e52a321b9 100644
--- a/apps/lang/english.lang
+++ b/apps/lang/english.lang
@@ -1381,8 +1381,8 @@ eng: "Size:"
 new:
 
 id: LANG_CPU_SLEEP
-desc: in system_settings_menu()
-eng: "Power Saving"
+desc: in system_settings_menu() (removed)
+eng: ""
 new:
 
 id: LANG_SETTINGS_LOADED1
diff --git a/apps/settings.c b/apps/settings.c
index ea88a058e8..9676f497d6 100644
--- a/apps/settings.c
+++ b/apps/settings.c
@@ -105,7 +105,7 @@ offset  abs
 0x23    0x37    <rec. left gain (bit 0-3)>
 0x24    0x38    <rec. right gain (bit 0-3)>
 0x25    0x39    <disk poweroff flag (bit 0), MP3 buffer margin (bit 1-3),
-                 Trickle charge flag (bit 4), CPU sleep flag (bit 5)>
+                 Trickle charge flag (bit 4)>
 0x26    0x40    <runtime low byte>
 0x27    0x41    <runtime high byte>
 0x28    0x42    <topruntime low byte>
@@ -357,8 +357,7 @@ int settings_save( void )
     config_block[0x25] = (unsigned char)
         ((global_settings.disk_poweroff & 1) |
          ((global_settings.buffer_margin & 7) << 1) |
-         ((global_settings.trickle_charge & 1) << 4) |
-         ((global_settings.cpu_sleep & 1) << 5));
+         ((global_settings.trickle_charge & 1) << 4));
 
     {
         static long lasttime = 0;
@@ -522,8 +521,6 @@ void settings_apply(void)
                  global_settings.lang_file);
         lang_load(buf);
     }
-
-    cpu_sleep(global_settings.cpu_sleep);
 }
 
 /*
@@ -649,7 +646,6 @@ void settings_load(void)
             global_settings.disk_poweroff = config_block[0x25] & 1;
             global_settings.buffer_margin = (config_block[0x25] >> 1) & 7;
             global_settings.trickle_charge = (config_block[0x25] >> 4) & 1;
-            global_settings.cpu_sleep = (config_block[0x25] >> 5) & 1;
         }
 
         if (config_block[0x27] != 0xff)
@@ -1509,7 +1505,6 @@ void settings_reset(void) {
     global_settings.lang_file[0] = 0;
     global_settings.runtime = 0;
     global_settings.topruntime = 0;
-    global_settings.cpu_sleep = true;
     global_settings.fade_on_stop = true;
 }
 
diff --git a/apps/settings.h b/apps/settings.h
index afc4794e7f..9f5f233a90 100644
--- a/apps/settings.h
+++ b/apps/settings.h
@@ -149,7 +149,6 @@ struct user_settings
     int scroll_delay;  /* delay (in 1/10s) before starting scroll */
     int scroll_step;   /* pixels to advance per update */
 
-    bool cpu_sleep;    /* Use sleep instruction when idle? */
     bool fade_on_stop; /* fade on pause/unpause/stop */
 };
 
diff --git a/apps/settings_menu.c b/apps/settings_menu.c
index a8487c5c54..c4d8c02c91 100644
--- a/apps/settings_menu.c
+++ b/apps/settings_menu.c
@@ -548,13 +548,6 @@ static bool poweroff(void)
 }
 #endif
 
-static bool cpu_sleep_set(void)
-{
-    bool result = set_bool(str(LANG_CPU_SLEEP), &global_settings.cpu_sleep);
-    cpu_sleep(global_settings.cpu_sleep);
-    return result;
-}
-
 static bool buffer_margin(void)
 {
     return set_int(str(LANG_MP3BUFFER_MARGIN), "s",
@@ -755,7 +748,6 @@ static bool system_settings_menu(void)
 #ifdef HAVE_ATA_POWER_OFF
         { str(LANG_POWEROFF),    poweroff        },
 #endif
-        { str(LANG_CPU_SLEEP),   cpu_sleep_set   },
 #ifndef SIMULATOR
         { str(LANG_BATTERY_CAPACITY), battery_capacity },
 #endif
diff --git a/firmware/export/thread.h b/firmware/export/thread.h
index f5a4b50ddd..c6b3c8e4e3 100644
--- a/firmware/export/thread.h
+++ b/firmware/export/thread.h
@@ -30,6 +30,5 @@ void sleep_thread(void);
 void wake_up_thread(void);
 void init_threads(void);
 int thread_stack_usage(int threadnum);
-void cpu_sleep(bool enabled);
 
 #endif
diff --git a/firmware/thread.c b/firmware/thread.c
index ea518ca4ee..aedd665d2e 100644
--- a/firmware/thread.c
+++ b/firmware/thread.c
@@ -33,7 +33,6 @@ struct regs
 };
 
 int num_threads;
-bool cpu_sleep_enabled;
 static volatile int num_sleepers;
 static int current_thread;
 static struct regs thread_contexts[MAXTHREADS] __attribute__ ((section(".idata")));
@@ -104,7 +103,7 @@ void switch_thread(void)
     /* Do nothing */
 #else
 
-    while (cpu_sleep_enabled && num_sleepers == num_threads)
+    while (num_sleepers == num_threads)
     {
         /* Enter sleep mode, woken up on interrupt */
         SBYCR &= 0x7F;
@@ -125,11 +124,6 @@ void switch_thread(void)
        panicf("Stkov %s", thread_name[next]);
 }
 
-void cpu_sleep(bool enabled)
-{
-    cpu_sleep_enabled = enabled;
-}
-
 void sleep_thread(void)
 {
     ++num_sleepers;