diff options
author | Krzysztof Helt <krzysztof.h1@wp.pl> | 2008-07-23 21:31:45 -0700 |
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committer | Linus Torvalds <torvalds@linux-foundation.org> | 2008-07-24 10:47:41 -0700 |
commit | 1ca6b62f8ca668ccfab0da9112c0125ef82343bd (patch) | |
tree | b649a9c2e341115ec595619d9d28648f6023a3a3 /drivers/video/neofb.c | |
parent | 7fc80b7bd682b47825e806018cca8ff7dc6bb55a (diff) | |
download | kernel_samsung_tuna-1ca6b62f8ca668ccfab0da9112c0125ef82343bd.zip kernel_samsung_tuna-1ca6b62f8ca668ccfab0da9112c0125ef82343bd.tar.gz kernel_samsung_tuna-1ca6b62f8ca668ccfab0da9112c0125ef82343bd.tar.bz2 |
neofb: drop redundant code
Drop structure which is only set but never read. Drop variables which are
only set and never read. Convert one long switch into two shorter ones.
Add cpu_relax() in busy waiting loop.
Signed-off-by: Krzysztof Helt <krzysztof.h1@wp.pl>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'drivers/video/neofb.c')
-rw-r--r-- | drivers/video/neofb.c | 95 |
1 files changed, 22 insertions, 73 deletions
diff --git a/drivers/video/neofb.c b/drivers/video/neofb.c index b033e5a..669b8c1 100644 --- a/drivers/video/neofb.c +++ b/drivers/video/neofb.c @@ -479,7 +479,8 @@ static inline int neo2200_sync(struct fb_info *info) { struct neofb_par *par = info->par; - while (readl(&par->neo2200->bltStat) & 1); + while (readl(&par->neo2200->bltStat) & 1) + cpu_relax(); return 0; } @@ -587,34 +588,14 @@ static int neofb_check_var(struct fb_var_screeninfo *var, struct fb_info *info) { struct neofb_par *par = info->par; - unsigned int pixclock = var->pixclock; - struct xtimings timings; int memlen, vramlen; int mode_ok = 0; DBG("neofb_check_var"); - if (!pixclock) - pixclock = 10000; /* 10ns = 100MHz */ - timings.pixclock = 1000000000 / pixclock; - if (timings.pixclock < 1) - timings.pixclock = 1; - - if (timings.pixclock > par->maxClock) + if (PICOS2KHZ(var->pixclock) > par->maxClock) return -EINVAL; - timings.dblscan = var->vmode & FB_VMODE_DOUBLE; - timings.interlaced = var->vmode & FB_VMODE_INTERLACED; - timings.HDisplay = var->xres; - timings.HSyncStart = timings.HDisplay + var->right_margin; - timings.HSyncEnd = timings.HSyncStart + var->hsync_len; - timings.HTotal = timings.HSyncEnd + var->left_margin; - timings.VDisplay = var->yres; - timings.VSyncStart = timings.VDisplay + var->lower_margin; - timings.VSyncEnd = timings.VSyncStart + var->vsync_len; - timings.VTotal = timings.VSyncEnd + var->upper_margin; - timings.sync = var->sync; - /* Is the mode larger than the LCD panel? */ if (par->internal_display && ((var->xres > par->NeoPanelWidth) || @@ -1923,9 +1904,6 @@ static int __devinit neo_init_hw(struct fb_info *info) int maxClock = 65000; int CursorMem = 1024; int CursorOff = 0x100; - int linearSize = 1024; - int maxWidth = 1024; - int maxHeight = 1024; DBG("neo_init_hw"); @@ -1944,81 +1922,52 @@ static int __devinit neo_init_hw(struct fb_info *info) case FB_ACCEL_NEOMAGIC_NM2070: videoRam = 896; maxClock = 65000; - CursorMem = 2048; - CursorOff = 0x100; - linearSize = 1024; - maxWidth = 1024; - maxHeight = 1024; break; case FB_ACCEL_NEOMAGIC_NM2090: case FB_ACCEL_NEOMAGIC_NM2093: - videoRam = 1152; - maxClock = 80000; - CursorMem = 2048; - CursorOff = 0x100; - linearSize = 2048; - maxWidth = 1024; - maxHeight = 1024; - break; case FB_ACCEL_NEOMAGIC_NM2097: videoRam = 1152; maxClock = 80000; - CursorMem = 1024; - CursorOff = 0x100; - linearSize = 2048; - maxWidth = 1024; - maxHeight = 1024; break; case FB_ACCEL_NEOMAGIC_NM2160: videoRam = 2048; maxClock = 90000; - CursorMem = 1024; - CursorOff = 0x100; - linearSize = 2048; - maxWidth = 1024; - maxHeight = 1024; break; case FB_ACCEL_NEOMAGIC_NM2200: videoRam = 2560; maxClock = 110000; - CursorMem = 1024; - CursorOff = 0x1000; - linearSize = 4096; - maxWidth = 1280; - maxHeight = 1024; /* ???? */ - - par->neo2200 = (Neo2200 __iomem *) par->mmio_vbase; break; case FB_ACCEL_NEOMAGIC_NM2230: videoRam = 3008; maxClock = 110000; - CursorMem = 1024; - CursorOff = 0x1000; - linearSize = 4096; - maxWidth = 1280; - maxHeight = 1024; /* ???? */ - - par->neo2200 = (Neo2200 __iomem *) par->mmio_vbase; break; case FB_ACCEL_NEOMAGIC_NM2360: videoRam = 4096; maxClock = 110000; - CursorMem = 1024; - CursorOff = 0x1000; - linearSize = 4096; - maxWidth = 1280; - maxHeight = 1024; /* ???? */ - - par->neo2200 = (Neo2200 __iomem *) par->mmio_vbase; break; case FB_ACCEL_NEOMAGIC_NM2380: videoRam = 6144; maxClock = 110000; + break; + } + switch (info->fix.accel) { + case FB_ACCEL_NEOMAGIC_NM2070: + case FB_ACCEL_NEOMAGIC_NM2090: + case FB_ACCEL_NEOMAGIC_NM2093: + CursorMem = 2048; + CursorOff = 0x100; + break; + case FB_ACCEL_NEOMAGIC_NM2097: + case FB_ACCEL_NEOMAGIC_NM2160: + CursorMem = 1024; + CursorOff = 0x100; + break; + case FB_ACCEL_NEOMAGIC_NM2200: + case FB_ACCEL_NEOMAGIC_NM2230: + case FB_ACCEL_NEOMAGIC_NM2360: + case FB_ACCEL_NEOMAGIC_NM2380: CursorMem = 1024; CursorOff = 0x1000; - linearSize = 8192; - maxWidth = 1280; - maxHeight = 1024; /* ???? */ par->neo2200 = (Neo2200 __iomem *) par->mmio_vbase; break; @@ -2032,7 +1981,7 @@ static int __devinit neo_init_hw(struct fb_info *info) */ par->maxClock = maxClock; par->cursorOff = CursorOff; - return ((videoRam * 1024)); + return videoRam * 1024; } |