[PATCH] USB: sisusbvga: possible cleanups

This patch contains the following possible cleanups:
- make needlessly global functions static
- function and struct declarations belong into header files
- make SiS_VCLKData const
- #if 0 the following unused global functions:
  - sisusb.c: sisusb_writew()
  - sisusb.c: sisusb_readw()
  - sisusb_init.c: SiSUSB_GetModeID()

Signed-off-by: Adrian Bunk <bunk@stusta.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

drivers/usb/misc/sisusbvga/sisusb_init.c

@@ -74,6 +74,7 @@ SiSUSB_InitPtr(struct SiS_Private *SiS_Pr)
 /*            HELPER: Get ModeID             */
 /*********************************************/
 
+#if 0
 unsigned short
 SiSUSB_GetModeID(int HDisplay, int VDisplay, int Depth)
 {
@@ -157,6 +158,7 @@ SiSUSB_GetModeID(int HDisplay, int VDisplay, int Depth)
 
 	return ModeIndex;
 }
+#endif  /*  0  */
 
 /*********************************************/
 /*          HELPER: SetReg, GetReg           */
@@ -233,7 +235,7 @@ SiS_DisplayOn(struct SiS_Private *SiS_Pr)
 /*        HELPER: Init Port Addresses        */
 /*********************************************/
 
-void
+static void
 SiSUSBRegInit(struct SiS_Private *SiS_Pr, unsigned long BaseAddr)
 {
 	SiS_Pr->SiS_P3c4 = BaseAddr + 0x14;