diff options
Diffstat (limited to 'drivers/video/tridentfb.c')
| -rw-r--r-- | drivers/video/tridentfb.c | 55 |
1 files changed, 37 insertions, 18 deletions
diff --git a/drivers/video/tridentfb.c b/drivers/video/tridentfb.c index 70fb4ee2b421..0a4e07d43d2d 100644 --- a/drivers/video/tridentfb.c +++ b/drivers/video/tridentfb.c @@ -564,7 +564,7 @@ static inline void write3CE(int reg, unsigned char val) t_outb(val, 0x3CF); } -static inline void enable_mmio(void) +static void enable_mmio(void) { /* Goto New Mode */ outb(0x0B, 0x3C4); @@ -579,6 +579,21 @@ static inline void enable_mmio(void) outb(inb(0x3D5) | 0x01, 0x3D5); } +static void disable_mmio(void) +{ + /* Goto New Mode */ + t_outb(0x0B, 0x3C4); + t_inb(0x3C5); + + /* Unprotect registers */ + t_outb(NewMode1, 0x3C4); + t_outb(0x80, 0x3C5); + + /* Disable MMIO */ + t_outb(PCIReg, 0x3D4); + t_outb(t_inb(0x3D5) & ~0x01, 0x3D5); +} + #define crtc_unlock() write3X4(CRTVSyncEnd, read3X4(CRTVSyncEnd) & 0x7F) /* Return flat panel's maximum x resolution */ @@ -730,7 +745,7 @@ static unsigned int __devinit get_memsize(void) switch (tmp) { case 0x01: - k = 512; + k = 512 * Kb; break; case 0x02: k = 6 * Mb; /* XP */ @@ -1239,9 +1254,9 @@ static int __devinit trident_pci_probe(struct pci_dev * dev, default_par.io_virt = ioremap_nocache(tridentfb_fix.mmio_start, tridentfb_fix.mmio_len); if (!default_par.io_virt) { - release_region(tridentfb_fix.mmio_start, tridentfb_fix.mmio_len); debug("ioremap failed\n"); - return -1; + err = -1; + goto out_unmap1; } enable_mmio(); @@ -1252,25 +1267,21 @@ static int __devinit trident_pci_probe(struct pci_dev * dev, if (!request_mem_region(tridentfb_fix.smem_start, tridentfb_fix.smem_len, "tridentfb")) { debug("request_mem_region failed!\n"); + disable_mmio(); err = -1; - goto out_unmap; + goto out_unmap1; } fb_info.screen_base = ioremap_nocache(tridentfb_fix.smem_start, tridentfb_fix.smem_len); if (!fb_info.screen_base) { - release_mem_region(tridentfb_fix.smem_start, tridentfb_fix.smem_len); debug("ioremap failed\n"); err = -1; - goto out_unmap; + goto out_unmap2; } output("%s board found\n", pci_name(dev)); -#if 0 - output("Trident board found : mem = %X, io = %X, mem_v = %X, io_v = %X\n", - tridentfb_fix.smem_start, tridentfb_fix.mmio_start, fb_info.screen_base, default_par.io_virt); -#endif displaytype = get_displaytype(); if (flatpanel) @@ -1288,9 +1299,12 @@ static int __devinit trident_pci_probe(struct pci_dev * dev, if (!fb_find_mode(&default_var, &fb_info, mode, NULL, 0, NULL, bpp)) { err = -EINVAL; - goto out_unmap; + goto out_unmap2; } - fb_alloc_cmap(&fb_info.cmap, 256, 0); + err = fb_alloc_cmap(&fb_info.cmap, 256, 0); + if (err < 0) + goto out_unmap2; + if (defaultaccel && acc) default_var.accel_flags |= FB_ACCELF_TEXT; else @@ -1300,19 +1314,24 @@ static int __devinit trident_pci_probe(struct pci_dev * dev, fb_info.device = &dev->dev; if (register_framebuffer(&fb_info) < 0) { printk(KERN_ERR "tridentfb: could not register Trident framebuffer\n"); + fb_dealloc_cmap(&fb_info.cmap); err = -EINVAL; - goto out_unmap; + goto out_unmap2; } output("fb%d: %s frame buffer device %dx%d-%dbpp\n", fb_info.node, fb_info.fix.id, default_var.xres, default_var.yres, default_var.bits_per_pixel); return 0; -out_unmap: - if (default_par.io_virt) - iounmap(default_par.io_virt); +out_unmap2: if (fb_info.screen_base) iounmap(fb_info.screen_base); + release_mem_region(tridentfb_fix.smem_start, tridentfb_fix.smem_len); + disable_mmio(); +out_unmap1: + if (default_par.io_virt) + iounmap(default_par.io_virt); + release_mem_region(tridentfb_fix.mmio_start, tridentfb_fix.mmio_len); return err; } @@ -1323,7 +1342,7 @@ static void __devexit trident_pci_remove(struct pci_dev *dev) iounmap(par->io_virt); iounmap(fb_info.screen_base); release_mem_region(tridentfb_fix.smem_start, tridentfb_fix.smem_len); - release_region(tridentfb_fix.mmio_start, tridentfb_fix.mmio_len); + release_mem_region(tridentfb_fix.mmio_start, tridentfb_fix.mmio_len); } /* List of boards that we are trying to support */ |