diff options
Diffstat (limited to 'drivers/video/fbdev/arkfb.c')
| -rw-r--r-- | drivers/video/fbdev/arkfb.c | 14 |
1 files changed, 13 insertions, 1 deletions
diff --git a/drivers/video/fbdev/arkfb.c b/drivers/video/fbdev/arkfb.c index eb3e47c58c5f..a317d9fe1d67 100644 --- a/drivers/video/fbdev/arkfb.c +++ b/drivers/video/fbdev/arkfb.c @@ -11,6 +11,7 @@ * Code is based on s3fb */ +#include <linux/aperture.h> #include <linux/module.h> #include <linux/kernel.h> #include <linux/errno.h> @@ -781,7 +782,12 @@ static int arkfb_set_par(struct fb_info *info) return -EINVAL; } - ark_set_pixclock(info, (hdiv * info->var.pixclock) / hmul); + value = (hdiv * info->var.pixclock) / hmul; + if (!value) { + fb_dbg(info, "invalid pixclock\n"); + value = 1; + } + ark_set_pixclock(info, value); svga_set_timings(par->state.vgabase, &ark_timing_regs, &(info->var), hmul, hdiv, (info->var.vmode & FB_VMODE_DOUBLE) ? 2 : 1, (info->var.vmode & FB_VMODE_INTERLACED) ? 2 : 1, @@ -792,6 +798,8 @@ static int arkfb_set_par(struct fb_info *info) value = ((value * hmul / hdiv) / 8) - 5; vga_wcrt(par->state.vgabase, 0x42, (value + 1) / 2); + if (screen_size > info->screen_size) + screen_size = info->screen_size; memset_io(info->screen_base, 0x00, screen_size); /* Device and screen back on */ svga_wcrt_mask(par->state.vgabase, 0x17, 0x80, 0x80); @@ -949,6 +957,10 @@ static int ark_pci_probe(struct pci_dev *dev, const struct pci_device_id *id) int rc; u8 regval; + rc = aperture_remove_conflicting_pci_devices(dev, "arkfb"); + if (rc < 0) + return rc; + /* Ignore secondary VGA device because there is no VGA arbitration */ if (! svga_primary_device(dev)) { dev_info(&(dev->dev), "ignoring secondary device\n"); |