iPod Nano 2G: Fix current leak through clickwheel GPIOs when clickwheel is powered down

git-svn-id: svn://svn.rockbox.org/rockbox/trunk@29272 a1c6a512-1295-4272-9138-f99709370657

1 files changed, 5 insertions, 1 deletions

diff --git a/firmware/target/arm/ipod/button-clickwheel.c b/firmware/target/arm/ipod/button-clickwheel.c
index 2cddbd5950..5d16381434 100644
--- a/firmware/target/arm/ipod/button-clickwheel.c
+++ b/firmware/target/arm/ipod/button-clickwheel.c
@@ -387,7 +387,11 @@ void button_init_device(void)
 bool button_hold(void)
 {
 #if CONFIG_CPU==S5L8701
-    return ((PDAT14 & (1 << 6)) == 0);
+    bool value = (PDAT14 & (1 << 6)) == 0;
+    if (value)
+        PCONF = (PCONF & ~0xffff0000) | 0x11110000;
+    else PCONF = (PCONF & ~0xffff0000) | 0x22220000;
+    return value;
 #elif CONFIG_CPU==S5L8702
     if (USEC_TIMER - holdswitch_last_read > 100000)
     {