[MTD] [NOR] intel_dc21285 switch to ROM API

Now that the needed helpers are exported, it becomes a nice simple 
switch over. Closes #9420

Signed-off-by: Alan Cox <alan@redhat.com>
Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>

1 files changed, 3 insertions, 13 deletions

diff --git a/drivers/mtd/maps/pci.c b/drivers/mtd/maps/pci.c
index 5c6a25c9038..d978c2e28b1 100644
--- a/drivers/mtd/maps/pci.c
+++ b/drivers/mtd/maps/pci.c
@@ -203,15 +203,8 @@ intel_dc21285_init(struct pci_dev *dev, struct map_pci_info *map)
                  * not enabled, should we be allocating a new resource for it
                  * or simply enabling it?
                  */
-                if (!(pci_resource_flags(dev, PCI_ROM_RESOURCE) &
-                                    IORESOURCE_ROM_ENABLE)) {
-                        u32 val;
-                        pci_resource_flags(dev, PCI_ROM_RESOURCE) |= IORESOURCE_ROM_ENABLE;
-                        pci_read_config_dword(dev, PCI_ROM_ADDRESS, &val);
-                        val |= PCI_ROM_ADDRESS_ENABLE;
-                        pci_write_config_dword(dev, PCI_ROM_ADDRESS, val);
-                        printk("%s: enabling expansion ROM\n", pci_name(dev));
-                }
+                pci_enable_rom(dev);
+                printk("%s: enabling expansion ROM\n", pci_name(dev));
         }
 
         if (!len || !base)
@@ -240,10 +233,7 @@ intel_dc21285_exit(struct pci_dev *dev, struct map_pci_info *map)
         /*
          * We need to undo the PCI BAR2/PCI ROM BAR address alteration.
          */
-        pci_resource_flags(dev, PCI_ROM_RESOURCE) &= ~IORESOURCE_ROM_ENABLE;
-        pci_read_config_dword(dev, PCI_ROM_ADDRESS, &val);
-        val &= ~PCI_ROM_ADDRESS_ENABLE;
-        pci_write_config_dword(dev, PCI_ROM_ADDRESS, val);
+        pci_disable_rom(dev);
 }
 
 static unsigned long