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 <arjan@linux.intel.com>
Cc: Krzysztof Helt <krzysztof.h1@poczta.fm>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
diff --git a/drivers/video/gxt4500.c b/drivers/video/gxt4500.c
index 5645577..896e53d 100644
--- a/drivers/video/gxt4500.c
+++ b/drivers/video/gxt4500.c
@@ -648,7 +648,7 @@
 	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;
@@ -656,7 +656,7 @@
 
 	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;