pci: use pci_ioremap_bar() in drivers/video

Use the newly introduced pci_ioremap_bar() function in drivers/video.
pci_ioremap_bar() just takes a pci device and a bar number, with the goal
of making it really hard to get wrong, while also having a central place
to stick sanity checks.

Signed-off-by: Arjan van de Ven <[e-mail]>
Cc: Krzysztof Helt <[e-mail]>
Signed-off-by: Andrew Morton <[e-mail]>
Signed-off-by: Linus Torvalds <[e-mail]>

drivers/video/aty/aty128fb.c

···
 
 	/* Virtualize mmio region */
 	info->fix.mmio_start = reg_addr;
-	par->regbase = ioremap(reg_addr, pci_resource_len(pdev, 2));
+	par->regbase = pci_ioremap_bar(pdev, 2);
 	if (!par->regbase)
 		goto err_free_info;
 

drivers/video/cyber2000fb.c

···
 		goto failed_release;
 
 	cfb->dev = dev;
-	cfb->region = ioremap(pci_resource_start(dev, 0),
-			      pci_resource_len(dev, 0));
+	cfb->region = pci_ioremap_bar(dev, 0);
 	if (!cfb->region)
 		goto failed_ioremap;
 

drivers/video/geode/gx1fb_core.c

···
 	ret = pci_request_region(dev, 0, "gx1fb (video)");
 	if (ret < 0)
 		return ret;
-	par->vid_regs = ioremap(pci_resource_start(dev, 0),
-				pci_resource_len(dev, 0));
+	par->vid_regs = pci_ioremap_bar(dev, 0);
 	if (!par->vid_regs)
 		return -ENOMEM;
 

drivers/video/geode/gxfb_core.c

···
 	ret = pci_request_region(dev, 3, "gxfb (video processor)");
 	if (ret < 0)
 		return ret;
-	par->vid_regs = ioremap(pci_resource_start(dev, 3),
-				pci_resource_len(dev, 3));
+	par->vid_regs = pci_ioremap_bar(dev, 3);
 	if (!par->vid_regs)
 		return -ENOMEM;
 
 	ret = pci_request_region(dev, 2, "gxfb (display controller)");
 	if (ret < 0)
 		return ret;
-	par->dc_regs = ioremap(pci_resource_start(dev, 2), pci_resource_len(dev, 2));
+	par->dc_regs = pci_ioremap_bar(dev, 2);
 	if (!par->dc_regs)
 		return -ENOMEM;
 
 	ret = pci_request_region(dev, 1, "gxfb (graphics processor)");
 	if (ret < 0)
 		return ret;
-	par->gp_regs = ioremap(pci_resource_start(dev, 1),
-	pci_resource_len(dev, 1));
+	par->gp_regs = pci_ioremap_bar(dev, 1);
 
 	if (!par->gp_regs)
 		return -ENOMEM;

drivers/video/geode/lxfb_core.c

···
 	if (info->screen_base == NULL)
 		return ret;
 
-	par->gp_regs = ioremap(pci_resource_start(dev, 1),
-				pci_resource_len(dev, 1));
+	par->gp_regs = pci_ioremap_bar(dev, 1);
 
 	if (par->gp_regs == NULL)
 		return ret;
 
-	par->dc_regs = ioremap(pci_resource_start(dev, 2),
-			       pci_resource_len(dev, 2));
+	par->dc_regs = pci_ioremap_bar(dev, 2);
 
 	if (par->dc_regs == NULL)
 		return ret;
 
-	par->vp_regs = ioremap(pci_resource_start(dev, 3),
-			       pci_resource_len(dev, 3));
+	par->vp_regs = pci_ioremap_bar(dev, 3);
 
 	if (par->vp_regs == NULL)
 		return ret;

drivers/video/gxt4500.c

···
 	info->pseudo_palette = par->pseudo_palette;
 
 	info->fix.mmio_start = reg_phys;
-	par->regs = ioremap(reg_phys, pci_resource_len(pdev, 0));
+	par->regs = pci_ioremap_bar(pdev, 0);
 	if (!par->regs) {
 		dev_err(&pdev->dev, "gxt4500: cannot map registers\n");
 		goto err_free_all;
···
 
 	info->fix.smem_start = fb_phys;
 	info->fix.smem_len = pci_resource_len(pdev, 1);
-	info->screen_base = ioremap(fb_phys, pci_resource_len(pdev, 1));
+	info->screen_base = pci_ioremap_bar(pdev, 1);
 	if (!info->screen_base) {
 		dev_err(&pdev->dev, "gxt4500: cannot map framebuffer\n");
 		goto err_unmap_regs;