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staging: xgifb: SetFlag: delete DisableChB 

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 23:59:07 +03:00 committed by Greg Kroah-Hartman
parent ae424a3d6e
commit c4f9c31ebe
2 changed files with 20 additions and 35 deletions
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1
drivers/staging/xgifb/vb_def.h
View File

@ -30,7 +30,6 @@
#define SetCRT2ToDualEdge 0x8000
#define ReserveTVOption 0x0008
#define DisableChB 0x1000
#define EnableChB 0x2000
#define DisableChA 0x4000
#define EnableChA 0x8000

54
drivers/staging/xgifb/vb_setmode.c
View File

@ -4555,7 +4555,7 @@ static unsigned char XGI_EnableChISLCD(struct vb_device_info *pVBInfo,
if (enable)
tempbx = pVBInfo->SetFlag & (EnableChA | EnableChB);
else
tempbx = pVBInfo->SetFlag & (DisableChA | DisableChB);
tempbx = pVBInfo->SetFlag & DisableChA;
tempah = ~((unsigned short) xgifb_reg_get(pVBInfo->Part1Port, 0x2E));
@ -4564,7 +4564,7 @@ static unsigned char XGI_EnableChISLCD(struct vb_device_info *pVBInfo,
return 0;
}
if (!(tempbx & (EnableChB | DisableChB)))
if (!(tempbx & EnableChB))
return 0;
if (tempah & 0x01) /* Chk LCDB Mode */
@ -4592,10 +4592,6 @@ static void XGI_DisableBridge(struct xgifb_video_info *xgifb_info,
/* Disable Channel B */
tempah = 0xBF;
if (pVBInfo->SetFlag & DisableChB)
/* force to disable Cahnnel */
tempah &= 0xBF;
if (pVBInfo->SetFlag & DisableChA)
/* Force to disable Channel B */
tempah &= 0x7F;
@ -4633,16 +4629,14 @@ static void XGI_DisableBridge(struct xgifb_video_info *xgifb_info,
if ((pVBInfo->VBInfo & (SetSimuScanMode | SetCRT2ToDualEdge)))
xgifb_reg_and(pVBInfo->Part2Port, 0x00, 0xdf);
if ((pVBInfo->SetFlag & DisableChB) ||
(pVBInfo->VBInfo &
if ((pVBInfo->VBInfo &
(DisableCRT2Display | SetSimuScanMode)) ||
((!(pVBInfo->VBInfo & XGI_SetCRT2ToLCDA)) &&
(pVBInfo->VBInfo &
(SetCRT2ToRAMDAC | SetCRT2ToLCD | SetCRT2ToTV))))
xgifb_reg_or(pVBInfo->Part1Port, 0x00, 0x80);
if ((pVBInfo->SetFlag & DisableChB) ||
(pVBInfo->VBInfo &
if ((pVBInfo->VBInfo &
(DisableCRT2Display | SetSimuScanMode)) ||
(!(pVBInfo->VBInfo & XGI_SetCRT2ToLCDA)) ||
(pVBInfo->VBInfo &
@ -5489,28 +5483,23 @@ static void XGI_EnableBridge(struct xgifb_video_info *xgifb_info,
}
}
if (!(pVBInfo->SetFlag & DisableChB)) {
if ((pVBInfo->SetFlag & EnableChB) || (pVBInfo->VBInfo
& (SetCRT2ToLCD | SetCRT2ToTV
| SetCRT2ToRAMDAC))) {
tempah = xgifb_reg_get(pVBInfo->P3c4, 0x32);
tempah &= 0xDF;
if (pVBInfo->VBInfo & SetInSlaveMode) {
if (!(pVBInfo->VBInfo &
SetCRT2ToRAMDAC))
tempah |= 0x20;
}
xgifb_reg_set(pVBInfo->P3c4, 0x32, tempah);
xgifb_reg_or(pVBInfo->P3c4, 0x1E, 0x20);
tempah = xgifb_reg_get(pVBInfo->Part1Port,
0x2E);
if (!(tempah & 0x80))
xgifb_reg_or(pVBInfo->Part1Port,
0x2E, 0x80);
xgifb_reg_and(pVBInfo->Part1Port, 0x00, 0x7F);
if ((pVBInfo->SetFlag & EnableChB) ||
(pVBInfo->VBInfo & (SetCRT2ToLCD | SetCRT2ToTV |
SetCRT2ToRAMDAC))) {
tempah = xgifb_reg_get(pVBInfo->P3c4, 0x32);
tempah &= 0xDF;
if (pVBInfo->VBInfo & SetInSlaveMode) {
if (!(pVBInfo->VBInfo & SetCRT2ToRAMDAC))
tempah |= 0x20;
}
xgifb_reg_set(pVBInfo->P3c4, 0x32, tempah);
xgifb_reg_or(pVBInfo->P3c4, 0x1E, 0x20);
tempah = xgifb_reg_get(pVBInfo->Part1Port, 0x2E);
if (!(tempah & 0x80))
xgifb_reg_or(pVBInfo->Part1Port, 0x2E, 0x80);
xgifb_reg_and(pVBInfo->Part1Port, 0x00, 0x7F);
}
if ((pVBInfo->SetFlag & (EnableChA | EnableChB))
@ -5545,9 +5534,6 @@ static void XGI_EnableBridge(struct xgifb_video_info *xgifb_info,
if (pVBInfo->VBInfo & XGI_SetCRT2ToLCDA)
tempah = tempah ^ 0xC0;
if (pVBInfo->SetFlag & DisableChB)
tempah &= 0xBF;
if (pVBInfo->SetFlag & DisableChA)
tempah &= 0x7F;