Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input

[mv-sheeva.git] / drivers / video / savage / savagefb_driver.c

diff --git a/drivers/video/savage/savagefb_driver.c b/drivers/video/savage/savagefb_driver.c
index 0166ec2ccf32c1b59057cd61bf6d6f20a7997614..3d7507ad55f66570a6a05fd2757ba53ee9beb885 100644 (file)
--- a/drivers/video/savage/savagefb_driver.c
+++ b/drivers/video/savage/savagefb_driver.c
@@ -1623,8 +1623,46 @@ static void savagefb_restore_state(struct fb_info *info)
        savagefb_blank(FB_BLANK_UNBLANK, info);
 }
 
+static int savagefb_open(struct fb_info *info, int user)
+{
+       struct savagefb_par *par = info->par;
+
+       mutex_lock(&par->open_lock);
+
+       if (!par->open_count) {
+               memset(&par->vgastate, 0, sizeof(par->vgastate));
+               par->vgastate.flags = VGA_SAVE_CMAP | VGA_SAVE_FONTS |
+                       VGA_SAVE_MODE;
+               par->vgastate.vgabase = par->mmio.vbase + 0x8000;
+               save_vga(&par->vgastate);
+               savage_get_default_par(par, &par->initial);
+       }
+
+       par->open_count++;
+       mutex_unlock(&par->open_lock);
+       return 0;
+}
+
+static int savagefb_release(struct fb_info *info, int user)
+{
+       struct savagefb_par *par = info->par;
+
+       mutex_lock(&par->open_lock);
+
+       if (par->open_count == 1) {
+               savage_set_default_par(par, &par->initial);
+               restore_vga(&par->vgastate);
+       }
+
+       par->open_count--;
+       mutex_unlock(&par->open_lock);
+       return 0;
+}
+
 static struct fb_ops savagefb_ops = {
        .owner          = THIS_MODULE,
+       .fb_open        = savagefb_open,
+       .fb_release     = savagefb_release,
        .fb_check_var   = savagefb_check_var,
        .fb_set_par     = savagefb_set_par,
        .fb_setcolreg   = savagefb_setcolreg,
@@ -2173,6 +2211,7 @@ static int __devinit savagefb_probe(struct pci_dev* dev,
        if (!info)
                return -ENOMEM;
        par = info->par;
+       mutex_init(&par->open_lock);
        err = pci_enable_device(dev);
        if (err)
                goto failed_enable;