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staging: xgifb: refactor XGI_BridgeIsOn() 

Refactor XGI_BridgeIsOn(). IF_DEF_LVDS bit is not valid for < XG20 chips.
Also we can make the function static by moving it to vb_init.

Signed-off-by: Aaro Koskinen <aaro.koskinen@iki.fi>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Aaro Koskinen 2013-05-29 23:59:00 +03:00 committed by Greg Kroah-Hartman
parent 1e4db2b325
commit c976c7819b
3 changed files with 9 additions and 17 deletions
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10
drivers/staging/xgifb/vb_init.c
View File

@ -1185,6 +1185,14 @@ static unsigned char GetXG27FPBits(struct vb_device_info *pVBInfo)
return temp;
}
static bool xgifb_bridge_is_on(struct vb_device_info *vb_info)
{
u8 flag;
flag = xgifb_reg_get(vb_info->Part4Port, 0x00);
return flag == 1 || flag == 2;
}
unsigned char XGIInitNew(struct pci_dev *pdev)
{
struct xgifb_video_info *xgifb_info = pci_get_drvdata(pdev);
@ -1321,7 +1329,7 @@ unsigned char XGIInitNew(struct pci_dev *pdev)
xgifb_reg_set(pVBInfo->P3c4, 0x33, XGI330_SR33);
if (HwDeviceExtension->jChipType < XG20) {
if (XGI_BridgeIsOn(pVBInfo) == 1) {
if (xgifb_bridge_is_on(pVBInfo)) {
xgifb_reg_set(pVBInfo->Part2Port, 0x00, 0x1C);
xgifb_reg_set(pVBInfo->Part4Port,
0x0D, XGI330_CRT2Data_4_D);

15
drivers/staging/xgifb/vb_setmode.c
View File

@ -5290,21 +5290,6 @@ void XGI_LockCRT2(struct xgi_hw_device_info *HwDeviceExtension,
}
unsigned char XGI_BridgeIsOn(struct vb_device_info *pVBInfo)
{
unsigned short flag;
if (pVBInfo->IF_DEF_LVDS == 1) {
return 1;
} else {
flag = xgifb_reg_get(pVBInfo->Part4Port, 0x00);
if ((flag == 1) || (flag == 2))
return 1; /* 301b */
else
return 0;
}
}
unsigned short XGI_GetRatePtrCRT2(struct xgi_hw_device_info *pXGIHWDE,
unsigned short ModeNo, unsigned short ModeIdIndex,
struct vb_device_info *pVBInfo)

1
drivers/staging/xgifb/vb_setmode.h
View File

@ -18,7 +18,6 @@ extern unsigned char XGISetModeNew(struct xgifb_video_info *xgifb_info,
extern unsigned char XGI_SearchModeID(unsigned short ModeNo,
unsigned short *ModeIdIndex,
struct vb_device_info *);
extern unsigned char XGI_BridgeIsOn(struct vb_device_info *);
extern unsigned short XGI_GetRatePtrCRT2(struct xgi_hw_device_info *pXGIHWDE,
unsigned short ModeNo,
unsigned short ModeIdIndex,