Sansa Clip: backlight brightness is not possible, so remove references to it

We don't need to mess with CCU_IO register (it's only needed for targets
with a SD slot) so don't keep its value when changing buttonlight

git-svn-id: svn://svn.rockbox.org/rockbox/trunk@19139 a1c6a512-1295-4272-9138-f99709370657

1 files changed, 0 insertions, 23 deletions

diff --git a/firmware/target/arm/as3525/sansa-clip/backlight-clip.c b/firmware/target/arm/as3525/sansa-clip/backlight-clip.c
index 2064f0992f..d22b04b34e 100644
--- a/firmware/target/arm/as3525/sansa-clip/backlight-clip.c
+++ b/firmware/target/arm/as3525/sansa-clip/backlight-clip.c
@@ -22,37 +22,14 @@
 #include "backlight-target.h"
 #include "as3525.h"
 
-/* TODO : backlight brightness */
-
-/* XXX : xpd is used for SD/MCI interface
- * If interrupts are used to access this interface, they should be
- * disabled in _buttonlight_on/off ()
- */
-
 void _buttonlight_on(void)
 {
-    int saved_ccu_io;
-
-    saved_ccu_io = CCU_IO;  /* save XPD setting */
-
-    CCU_IO &= ~(3<<2);      /* setup xpd as GPIO */
-
     GPIOD_DIR |= (1<<7);
     GPIOD_PIN(7) = (1<<7);  /* set pin d7 high */
-
-    CCU_IO = saved_ccu_io;  /* restore the previous XPD setting */
 }
 
 void _buttonlight_off(void)
 {
-    int saved_ccu_io;
-
-    saved_ccu_io = CCU_IO;  /* save XPD setting */
-
-    CCU_IO &= ~(3<<2);      /* setup xpd as GPIO */
-
     GPIOD_DIR |= (1<<7);
     GPIOD_PIN(7) = 0;       /* set pin d7 low */
-
-    CCU_IO = saved_ccu_io;  /* restore the previous XPD setting */
 }