Fuzev2: don't disable interrupts in fm code, allow button tick to run

git-svn-id: svn://svn.rockbox.org/rockbox/trunk@25819 a1c6a512-1295-4272-9138-f99709370657

1 files changed, 3 insertions, 1 deletions

diff --git a/firmware/target/arm/as3525/sansa-fuzev2/button-fuzev2.c b/firmware/target/arm/as3525/sansa-fuzev2/button-fuzev2.c
index fcda5226ca..4486af95b1 100644
--- a/firmware/target/arm/as3525/sansa-fuzev2/button-fuzev2.c
+++ b/firmware/target/arm/as3525/sansa-fuzev2/button-fuzev2.c
@@ -230,6 +230,7 @@ int button_read_device(void)
     int delay = 30;
     while(delay--) nop;
 
+    bool ccu_io_bit12 = CCU_IO & (1<<12);
     CCU_IO &= ~(1<<12);
 
     /* B1 is shared with FM i2c */
@@ -273,7 +274,8 @@ int button_read_device(void)
     if(gpiob_pin0_dir)
         GPIOB_DIR |= 1<<1;
 
-    CCU_IO |= 1<<12;
+    if(ccu_io_bit12)
+        CCU_IO |= 1<<12;
 
 #ifdef HAS_BUTTON_HOLD
 #ifndef BOOTLOADER