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staging: xgifb: SetFlag: delete DisableChA 

This flag is never set, so checks can be removed and code behind it
deleted.

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 23:59:09 +03:00 committed by Greg Kroah-Hartman
parent b8e34b3ffa
commit d1724637e1
2 changed files with 11 additions and 25 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

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

@ -30,7 +30,6 @@
#define SetCRT2ToDualEdge 0x8000
#define ReserveTVOption 0x0008
#define DisableChA 0x4000
#define EnableChA 0x8000
#define SetTVLowResolution 0x0400

35
drivers/staging/xgifb/vb_setmode.c
View File

@ -4555,11 +4555,11 @@ static unsigned char XGI_EnableChISLCD(struct vb_device_info *pVBInfo,
if (enable)
tempbx = pVBInfo->SetFlag & EnableChA;
else
tempbx = pVBInfo->SetFlag & DisableChA;
tempbx = 0;
tempah = ~((unsigned short) xgifb_reg_get(pVBInfo->Part1Port, 0x2E));
if (tempbx & (EnableChA | DisableChA)) {
if (tempbx & EnableChA) {
if (!(tempah & 0x08)) /* Chk LCDA Mode */
return 0;
}
@ -4585,10 +4585,6 @@ static void XGI_DisableBridge(struct xgifb_video_info *xgifb_info,
XGI_SetCRT2ToLCDA))
/* Disable Channel B */
tempah = 0xBF;
if (pVBInfo->SetFlag & DisableChA)
/* Force to disable Channel B */
tempah &= 0x7F;
}
}
}
@ -4605,14 +4601,12 @@ static void XGI_DisableBridge(struct xgifb_video_info *xgifb_info,
xgifb_reg_or(pVBInfo->Part4Port, 0x30, 0x80);
}
if ((pVBInfo->SetFlag & DisableChA) || (pVBInfo->VBInfo
& (DisableCRT2Display | XGI_SetCRT2ToLCDA
| SetSimuScanMode)))
if (pVBInfo->VBInfo & (DisableCRT2Display | XGI_SetCRT2ToLCDA |
SetSimuScanMode))
XGI_DisplayOff(xgifb_info, HwDeviceExtension, pVBInfo);
if (pVBInfo->VBInfo & XGI_SetCRT2ToLCDA) {
if ((pVBInfo->SetFlag & DisableChA) || (pVBInfo->VBInfo
& XGI_SetCRT2ToLCDA))
if (pVBInfo->VBInfo & XGI_SetCRT2ToLCDA)
/* Power down */
xgifb_reg_and(pVBInfo->Part1Port, 0x1e, 0xdf);
}
@ -5469,12 +5463,10 @@ static void XGI_EnableBridge(struct xgifb_video_info *xgifb_info,
if (pVBInfo->VBType & (VB_SIS301B | VB_SIS302B | VB_SIS301LV
| VB_SIS302LV | VB_XGI301C)) {
if (!(pVBInfo->SetFlag & DisableChA)) {
if ((pVBInfo->SetFlag & EnableChA) ||
(pVBInfo->VBInfo & SetCRT2ToDualEdge)) {
/* Power on */
xgifb_reg_set(pVBInfo->Part1Port, 0x1E, 0x20);
}
if ((pVBInfo->SetFlag & EnableChA) ||
(pVBInfo->VBInfo & SetCRT2ToDualEdge)) {
/* Power on */
xgifb_reg_set(pVBInfo->Part1Port, 0x1E, 0x20);
}
if (pVBInfo->VBInfo & (SetCRT2ToLCD | SetCRT2ToTV |
@ -5527,9 +5519,6 @@ static void XGI_EnableBridge(struct xgifb_video_info *xgifb_info,
if (pVBInfo->VBInfo & XGI_SetCRT2ToLCDA)
tempah = tempah ^ 0xC0;
if (pVBInfo->SetFlag & DisableChA)
tempah &= 0x7F;
if (pVBInfo->SetFlag & EnableChA)
tempah |= 0x80;
}
@ -5538,10 +5527,8 @@ static void XGI_EnableBridge(struct xgifb_video_info *xgifb_info,
/* EnablePart4_1F */
xgifb_reg_or(pVBInfo->Part4Port, 0x1F, tempah);
if (!(pVBInfo->SetFlag & DisableChA)) {
XGI_DisableGatingCRT(HwDeviceExtension, pVBInfo);
XGI_DisplayOn(xgifb_info, HwDeviceExtension, pVBInfo);
}
XGI_DisableGatingCRT(HwDeviceExtension, pVBInfo);
XGI_DisplayOn(xgifb_info, HwDeviceExtension, pVBInfo);
} /* 301 */
else { /* LVDS */
if (pVBInfo->VBInfo & (SetCRT2ToTV | SetCRT2ToLCD