[PATCH 1/5] fbdev: aty128fb: Convert to managed PCI and ioremap API

[oushixiong1025]

From: Shixiong Ou <oushixiong@xxxxxxxxxx>

Fix missing pci_disable_device() in probe and remove.

Use pcim_enable_device(), pcim_request_region(), devm_ioremap()
and devm_ioremap_wc() to replace manual resource management.
Remove all release_mem_region() and iounmap() calls.

Signed-off-by: Shixiong Ou <oushixiong@xxxxxxxxxx>
---
 drivers/video/fbdev/aty/aty128fb.c | 40 +++++++++---------------------
 1 file changed, 12 insertions(+), 28 deletions(-)

diff --git a/drivers/video/fbdev/aty/aty128fb.c b/drivers/video/fbdev/aty/aty128fb.c
index bcb10e66221c..b76bfe014f41 100644
--- a/drivers/video/fbdev/aty/aty128fb.c
+++ b/drivers/video/fbdev/aty/aty128fb.c
@@ -2009,31 +2009,30 @@ static int aty128_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
 		return err;
 
 	/* Enable device in PCI config */
-	if ((err = pci_enable_device(pdev))) {
+	err = pcim_enable_device(pdev);
+	if (err) {
 		printk(KERN_ERR "aty128fb: Cannot enable PCI device: %d\n",
 				err);
 		return -ENODEV;
 	}
 
 	fb_addr = pci_resource_start(pdev, 0);
-	if (!request_mem_region(fb_addr, pci_resource_len(pdev, 0),
-				"aty128fb FB")) {
+	if (!pcim_request_region(pdev, 0, "aty128fb FB")) {
 		printk(KERN_ERR "aty128fb: cannot reserve frame "
 				"buffer memory\n");
 		return -ENODEV;
 	}
 
 	reg_addr = pci_resource_start(pdev, 2);
-	if (!request_mem_region(reg_addr, pci_resource_len(pdev, 2),
-				"aty128fb MMIO")) {
+	if (!pcim_request_region(pdev, 2, "aty128fb MMIO")) {
 		printk(KERN_ERR "aty128fb: cannot reserve MMIO region\n");
-		goto err_free_fb;
+		goto err_free_info;
 	}
 
 	/* We have the resources. Now virtualize them */
 	info = framebuffer_alloc(sizeof(struct aty128fb_par), &pdev->dev);
 	if (!info)
-		goto err_free_mmio;
+		goto err_free_info;
 
 	par = info->par;
 
@@ -2041,7 +2040,8 @@ static int aty128_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
 
 	/* Virtualize mmio region */
 	info->fix.mmio_start = reg_addr;
-	par->regbase = pci_ioremap_bar(pdev, 2);
+	par->regbase = devm_ioremap(&pdev->dev, pci_resource_start(pdev, 2),
+				    pci_resource_len(pdev, 2));
 	if (!par->regbase)
 		goto err_free_info;
 
@@ -2050,9 +2050,9 @@ static int aty128_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
 	par->vram_size = aty_ld_le32(CNFG_MEMSIZE) & 0x03FFFFFF;
 
 	/* Virtualize the framebuffer */
-	info->screen_base = ioremap_wc(fb_addr, par->vram_size);
+	info->screen_base = devm_ioremap_wc(&pdev->dev, fb_addr, par->vram_size);
 	if (!info->screen_base)
-		goto err_unmap_out;
+		goto err_free_info;
 
 	/* Set up info->fix */
 	info->fix = aty128fb_fix;
@@ -2063,7 +2063,7 @@ static int aty128_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
 	/* If we can't test scratch registers, something is seriously wrong */
 	if (!register_test(par)) {
 		printk(KERN_ERR "aty128fb: Can't write to video register!\n");
-		goto err_out;
+		goto err_free_info;
 	}
 
 #ifndef __sparc__
@@ -2085,25 +2085,15 @@ static int aty128_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
 	pci_set_drvdata(pdev, info);
 
 	if (!aty128_init(pdev, ent))
-		goto err_out;
+		goto err_free_info;
 
 	if (mtrr)
 		par->wc_cookie = arch_phys_wc_add(info->fix.smem_start,
 						  par->vram_size);
 	return 0;
 
-err_out:
-	iounmap(info->screen_base);
-err_unmap_out:
-	iounmap(par->regbase);
 err_free_info:
 	framebuffer_release(info);
-err_free_mmio:
-	release_mem_region(pci_resource_start(pdev, 2),
-			pci_resource_len(pdev, 2));
-err_free_fb:
-	release_mem_region(pci_resource_start(pdev, 0),
-			pci_resource_len(pdev, 0));
 	return -ENODEV;
 }
 
@@ -2124,13 +2114,7 @@ static void aty128_remove(struct pci_dev *pdev)
 	unregister_framebuffer(info);
 
 	arch_phys_wc_del(par->wc_cookie);
-	iounmap(par->regbase);
-	iounmap(info->screen_base);
 
-	release_mem_region(pci_resource_start(pdev, 0),
-			   pci_resource_len(pdev, 0));
-	release_mem_region(pci_resource_start(pdev, 2),
-			   pci_resource_len(pdev, 2));
 	framebuffer_release(info);
 }
 #endif /* CONFIG_PCI */
-- 
2.25.1


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