Merged from upstream

2 files changed, 22 insertions, 25 deletions

diff --git a/tmk_core/common/avr/suspend.c b/tmk_core/common/avr/suspend.c
index 8a7272bbc5..0c81e83612 100644
--- a/tmk_core/common/avr/suspend.c
+++ b/tmk_core/common/avr/suspend.c
@@ -47,6 +47,7 @@ void suspend_idle(uint8_t time)
     sleep_disable();
 }
 
+#ifndef NO_SUSPEND_POWER_DOWN
 /* Power down MCU with watchdog timer
  * wdto: watchdog timer timeout defined in <avr/wdt.h>
  *          WDTO_15MS
@@ -61,6 +62,7 @@ void suspend_idle(uint8_t time)
  *          WDTO_8S
  */
 static uint8_t wdt_timeout = 0;
+
 static void power_down(uint8_t wdto)
 {
 #ifdef PROTOCOL_LUFA
@@ -98,19 +100,19 @@ static void power_down(uint8_t wdto)
     // Disable watchdog after sleep
     wdt_disable();
 }
+#endif
 
 void suspend_power_down(void)
 {
+#ifndef NO_SUSPEND_POWER_DOWN
     power_down(WDTO_15MS);
+#endif
 }
 
 __attribute__ ((weak)) void matrix_power_up(void) {}
 __attribute__ ((weak)) void matrix_power_down(void) {}
 bool suspend_wakeup_condition(void)
 {
-#ifdef BACKLIGHT_ENABLE
-    backlight_set(0);
-#endif
     matrix_power_up();
     matrix_scan();
     matrix_power_down();
@@ -126,10 +128,9 @@ void suspend_wakeup_init(void)
     // clear keyboard state
     clear_keyboard();
 #ifdef BACKLIGHT_ENABLE
-    backlight_set(0);
     backlight_init();
 #endif
-led_set(host_keyboard_leds());
+	led_set(host_keyboard_leds());
 }
 
 #ifndef NO_SUSPEND_POWER_DOWN
diff --git a/tmk_core/common/avr/timer.c b/tmk_core/common/avr/timer.c
index 292b41c3a6..84af444885 100644
--- a/tmk_core/common/avr/timer.c
+++ b/tmk_core/common/avr/timer.c
@@ -17,6 +17,7 @@ along with this program.  If not, see <http://www.gnu.org/licenses/>.
 
 #include <avr/io.h>
 #include <avr/interrupt.h>
+#include <util/atomic.h>
 #include <stdint.h>
 #include "timer_avr.h"
 #include "timer.h"
@@ -24,7 +25,7 @@ along with this program.  If not, see <http://www.gnu.org/licenses/>.
 
 // counter resolution 1ms
 // NOTE: union { uint32_t timer32; struct { uint16_t dummy; uint16_t timer16; }}
-volatile uint32_t timer_count = 0;
+volatile uint32_t timer_count;
 
 void timer_init(void)
 {
@@ -52,10 +53,9 @@ void timer_init(void)
 inline
 void timer_clear(void)
 {
-    uint8_t sreg = SREG;
-    cli();
+  ATOMIC_BLOCK(ATOMIC_RESTORESTATE) {
     timer_count = 0;
-    SREG = sreg;
+  }
 }
 
 inline
@@ -63,10 +63,9 @@ uint16_t timer_read(void)
 {
     uint32_t t;
 
-    uint8_t sreg = SREG;
-    cli();
-    t = timer_count;
-    SREG = sreg;
+    ATOMIC_BLOCK(ATOMIC_RESTORESTATE) {
+      t = timer_count;
+    }
 
     return (t & 0xFFFF);
 }
@@ -76,10 +75,9 @@ uint32_t timer_read32(void)
 {
     uint32_t t;
 
-    uint8_t sreg = SREG;
-    cli();
-    t = timer_count;
-    SREG = sreg;
+    ATOMIC_BLOCK(ATOMIC_RESTORESTATE) {
+      t = timer_count;
+    }
 
     return t;
 }
@@ -89,10 +87,9 @@ uint16_t timer_elapsed(uint16_t last)
 {
     uint32_t t;
 
-    uint8_t sreg = SREG;
-    cli();
-    t = timer_count;
-    SREG = sreg;
+    ATOMIC_BLOCK(ATOMIC_RESTORESTATE) {
+      t = timer_count;
+    }
 
     return TIMER_DIFF_16((t & 0xFFFF), last);
 }
@@ -102,10 +99,9 @@ uint32_t timer_elapsed32(uint32_t last)
 {
     uint32_t t;
 
-    uint8_t sreg = SREG;
-    cli();
-    t = timer_count;
-    SREG = sreg;
+    ATOMIC_BLOCK(ATOMIC_RESTORESTATE) {
+      t = timer_count;
+    }
 
     return TIMER_DIFF_32(t, last);
 }