[PATCH] video: fbdev: sis: remove unused variables
From: Sudip Mukherjee <sudipm.mukherjee@gmail.com>
Date: 2015-01-22 15:31:57
removed some variables which were not used. Few calls to SiS_GetReg() were left behind as they are reading from the hardare, removing them might affect the overall functionality. Signed-off-by: Sudip Mukherjee <redacted> --- This patch will generate checkpatch error, to fix that error we need to change the style of init.c and init301.c drivers/video/fbdev/sis/init.c | 33 +++++---------------------------- drivers/video/fbdev/sis/init301.c | 10 ++-------- drivers/video/fbdev/sis/sis_main.c | 9 ++++----- 3 files changed, 11 insertions(+), 41 deletions(-)
diff --git a/drivers/video/fbdev/sis/init.c b/drivers/video/fbdev/sis/init.c
index dfe3eb7..bfeb550 100644
--- a/drivers/video/fbdev/sis/init.c
+++ b/drivers/video/fbdev/sis/init.c@@ -2649,7 +2649,7 @@ static void SiS_SetCRT1ModeRegs(struct SiS_Private *SiS_Pr, unsigned short ModeNo, unsigned short ModeIdIndex, unsigned short RRTI) { - unsigned short data, infoflag = 0, modeflag, resindex; + unsigned short data, infoflag = 0, modeflag; #ifdef CONFIG_FB_SIS_315 unsigned char *ROMAddr = SiS_Pr->VirtualRomBase; unsigned short data2, data3;
@@ -2660,7 +2660,6 @@ SiS_SetCRT1ModeRegs(struct SiS_Private *SiS_Pr, unsigned short ModeNo, if(SiS_Pr->UseCustomMode) { infoflag = SiS_Pr->CInfoFlag; } else { - resindex = SiS_GetResInfo(SiS_Pr, ModeNo, ModeIdIndex); if(ModeNo > 0x13) { infoflag = SiS_Pr->SiS_RefIndex[RRTI].Ext_InfoFlag; }
@@ -3539,17 +3538,13 @@ SiS_Generic_ConvertCRData(struct SiS_Private *SiS_Pr, unsigned char *crdata, struct fb_var_screeninfo *var, bool writeres ) { - unsigned short HRE, HBE, HRS, HBS, HDE, HT; - unsigned short VRE, VBE, VRS, VBS, VDE, VT; - unsigned char sr_data, cr_data, cr_data2; - int A, B, C, D, E, F, temp; + unsigned short HRE, HBE, HRS, HDE; + unsigned short VRE, VBE, VRS, VDE; + unsigned char sr_data, cr_data; + int B, C, D, E, F, temp; sr_data = crdata[14]; - /* Horizontal total */ - HT = crdata[0] | ((unsigned short)(sr_data & 0x03) << 8); - A = HT + 5; - /* Horizontal display enable end */ HDE = crdata[1] | ((unsigned short)(sr_data & 0x0C) << 6); E = HDE + 1;
@@ -3558,9 +3553,6 @@ SiS_Generic_ConvertCRData(struct SiS_Private *SiS_Pr, unsigned char *crdata, HRS = crdata[4] | ((unsigned short)(sr_data & 0xC0) << 2); F = HRS - E - 3; - /* Horizontal blank start */ - HBS = crdata[2] | ((unsigned short)(sr_data & 0x30) << 4); - sr_data = crdata[15]; cr_data = crdata[5];
@@ -3589,13 +3581,6 @@ SiS_Generic_ConvertCRData(struct SiS_Private *SiS_Pr, unsigned char *crdata, sr_data = crdata[13]; cr_data = crdata[7]; - /* Vertical total */ - VT = crdata[6] | - ((unsigned short)(cr_data & 0x01) << 8) | - ((unsigned short)(cr_data & 0x20) << 4) | - ((unsigned short)(sr_data & 0x01) << 10); - A = VT + 2; - /* Vertical display enable end */ VDE = crdata[10] | ((unsigned short)(cr_data & 0x02) << 7) |
@@ -3610,14 +3595,6 @@ SiS_Generic_ConvertCRData(struct SiS_Private *SiS_Pr, unsigned char *crdata, ((unsigned short)(sr_data & 0x08) << 7); F = VRS + 1 - E; - cr_data2 = (crdata[16] & 0x01) << 5; - - /* Vertical blank start */ - VBS = crdata[11] | - ((unsigned short)(cr_data & 0x08) << 5) | - ((unsigned short)(cr_data2 & 0x20) << 4) | - ((unsigned short)(sr_data & 0x04) << 8); - /* Vertical blank end */ VBE = crdata[12] | ((unsigned short)(sr_data & 0x10) << 4); temp = VBE - ((E - 1) & 511);
diff --git a/drivers/video/fbdev/sis/init301.c b/drivers/video/fbdev/sis/init301.c
index 295e0de..20f7234 100644
--- a/drivers/video/fbdev/sis/init301.c
+++ b/drivers/video/fbdev/sis/init301.c@@ -2151,17 +2151,15 @@ SiS_GetVCLK2Ptr(struct SiS_Private *SiS_Pr, unsigned short ModeNo, unsigned shor unsigned short RefreshRateTableIndex) { unsigned short CRT2Index, VCLKIndex = 0, VCLKIndexGEN = 0, VCLKIndexGENCRT = 0; - unsigned short modeflag, resinfo, tempbx; + unsigned short resinfo, tempbx; const unsigned char *CHTVVCLKPtr = NULL; if(ModeNo <= 0x13) { - modeflag = SiS_Pr->SiS_SModeIDTable[ModeIdIndex].St_ModeFlag; resinfo = SiS_Pr->SiS_SModeIDTable[ModeIdIndex].St_ResInfo; CRT2Index = SiS_Pr->SiS_SModeIDTable[ModeIdIndex].St_CRT2CRTC; VCLKIndexGEN = (SiS_GetRegByte((SiS_Pr->SiS_P3ca+0x02)) >> 2) & 0x03; VCLKIndexGENCRT = VCLKIndexGEN; } else { - modeflag = SiS_Pr->SiS_EModeIDTable[ModeIdIndex].Ext_ModeFlag; resinfo = SiS_Pr->SiS_EModeIDTable[ModeIdIndex].Ext_RESINFO; CRT2Index = SiS_Pr->SiS_RefIndex[RefreshRateTableIndex].Ext_CRT2CRTC; VCLKIndexGEN = SiS_Pr->SiS_RefIndex[RefreshRateTableIndex].Ext_CRTVCLK;
@@ -7270,7 +7268,7 @@ SiS_ShiftXPos(struct SiS_Private *SiS_Pr, int shift) static void SiS_SetGroup4_C_ELV(struct SiS_Private *SiS_Pr, unsigned short ModeNo, unsigned short ModeIdIndex) { - unsigned short temp, temp1, resinfo = 0; + unsigned short temp, temp1; unsigned char *ROMAddr = SiS_Pr->VirtualRomBase; if(!(SiS_Pr->SiS_VBType & VB_SIS30xCLV)) return;
@@ -7282,10 +7280,6 @@ SiS_SetGroup4_C_ELV(struct SiS_Private *SiS_Pr, unsigned short ModeNo, unsigned if(!(ROMAddr[0x61] & 0x04)) return; } - if(ModeNo > 0x13) { - resinfo = SiS_Pr->SiS_EModeIDTable[ModeIdIndex].Ext_RESINFO; - } - SiS_SetRegOR(SiS_Pr->SiS_Part4Port,0x3a,0x08); temp = SiS_GetReg(SiS_Pr->SiS_Part4Port,0x3a); if(!(temp & 0x01)) {
diff --git a/drivers/video/fbdev/sis/sis_main.c b/drivers/video/fbdev/sis/sis_main.c
index fcf610e..39e4dfd 100644
--- a/drivers/video/fbdev/sis/sis_main.c
+++ b/drivers/video/fbdev/sis/sis_main.c@@ -4991,7 +4991,6 @@ static void sisfb_post_xgi_ddr2(struct sis_video_info *ivideo, u8 regb) static const u8 cs168[8] = { 0x48, 0x78, 0x88, 0x00, 0x00, 0x00, 0x00, 0x00 }; - u8 reg; u8 v1; u8 v2; u8 v3;
@@ -4999,9 +4998,9 @@ static void sisfb_post_xgi_ddr2(struct sis_video_info *ivideo, u8 regb) SiS_SetReg(SISCR, 0xb0, 0x80); /* DDR2 dual frequency mode */ SiS_SetReg(SISCR, 0x82, 0x77); SiS_SetReg(SISCR, 0x86, 0x00); - reg = SiS_GetReg(SISCR, 0x86); + SiS_GetReg(SISCR, 0x86); SiS_SetReg(SISCR, 0x86, 0x88); - reg = SiS_GetReg(SISCR, 0x86); + SiS_GetReg(SISCR, 0x86); v1 = cs168[regb]; v2 = cs160[regb]; v3 = cs158[regb]; if (ivideo->haveXGIROM) { v1 = bios[regb + 0x168];
@@ -5011,9 +5010,9 @@ static void sisfb_post_xgi_ddr2(struct sis_video_info *ivideo, u8 regb) SiS_SetReg(SISCR, 0x86, v1); SiS_SetReg(SISCR, 0x82, 0x77); SiS_SetReg(SISCR, 0x85, 0x00); - reg = SiS_GetReg(SISCR, 0x85); + SiS_GetReg(SISCR, 0x85); SiS_SetReg(SISCR, 0x85, 0x88); - reg = SiS_GetReg(SISCR, 0x85); + SiS_GetReg(SISCR, 0x85); SiS_SetReg(SISCR, 0x85, v2); SiS_SetReg(SISCR, 0x82, v3); SiS_SetReg(SISCR, 0x98, 0x01);
--
1.8.1.2