ide-mpc8xx: fix resources reservation

* Tell IDE layer to not manage resources by setting
  hwif->mmio flag and request resources in m8xx_ide_init_ports().

* Use request_mem_region() for resources reservation.

* Use driver name for resources reservation.

Cc: Vitaly Bordug <vitb@kernel.crashing.org>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>

1 files changed, 17 insertions, 1 deletions

diff --git a/drivers/ide/ppc/mpc8xx.c b/drivers/ide/ppc/mpc8xx.c
index 3f8539f1ccd3..467656f06ccc 100644
--- a/drivers/ide/ppc/mpc8xx.c
+++ b/drivers/ide/ppc/mpc8xx.c
@@ -36,6 +36,8 @@
 #include <asm/machdep.h>
 #include <asm/irq.h>
 
+#define DRV_NAME "ide-mpc8xx"
+
 static int identify  (volatile u8 *p);
 static void print_fixed (volatile u8 *p);
 static void print_funcid (int func);
@@ -182,6 +184,13 @@ static int __init m8xx_ide_init_ports(hw_regs_t *hw, unsigned long data_port)
                         pcmcia_phy_base, pcmcia_phy_end,
                         pcmcia_phy_end - pcmcia_phy_base);
 
+                if (!request_mem_region(pcmcia_phy_base,
+                                        pcmcia_phy_end - pcmcia_phy_base,
+                                        DRV_NAME)) {
+                        printk(KERN_ERR "%s: resources busy\n", DRV_NAME);
+                        return -EBUSY;
+                }
+
                 pcmcia_base=(unsigned long)ioremap(pcmcia_phy_base,
                                                    pcmcia_phy_end-pcmcia_phy_base);
 
@@ -326,7 +335,12 @@ static int __init m8xx_ide_init_ports(hw_regs_t *hw, unsigned long data_port)
                 printk ("IDE phys mem : %08x...%08x (size %08x)\n",
                         ide_phy_base, ide_phy_end,
                         ide_phy_end - ide_phy_base);
-                
+
+                if (!request_mem_region(ide_phy_base, 0x200, DRV_NAME)) {
+                        printk(KERN_ERR "%s: resources busy\n", DRV_NAME);
+                        return -EBUSY;
+                }
+
                 ide_base=(unsigned long)ioremap(ide_phy_base,
                                                 ide_phy_end-ide_phy_base);
 
@@ -796,6 +810,7 @@ static int __init mpc8xx_ide_probe(void)
                 ide_hwif_t *hwif = &ide_hwifs[0];
 
                 ide_init_port_hw(hwif, &hw);
+                hwif->mmio = 1;
                 hwif->pio_mask = ATA_PIO4;
                 hwif->set_pio_mode = m8xx_ide_set_pio_mode;
 
@@ -807,6 +822,7 @@ static int __init mpc8xx_ide_probe(void)
                 ide_hwif_t *mate = &ide_hwifs[1];
 
                 ide_init_port_hw(mate, &hw);
+                mate->mmio = 1;
                 mate->pio_mask = ATA_PIO4;
                 mate->set_pio_mode = m8xx_ide_set_pio_mode;