libata: convert to iomap

Convert libata core layer and LLDs to use iomap.

* managed iomap is used.  Pointer to pcim_iomap_table() is cached at
  host->iomap and used through out LLDs.  This basically replaces
  host->mmio_base.

* if possible, pcim_iomap_regions() is used

Most iomap operation conversions are taken from Jeff Garzik
<jgarzik@pobox.com>'s iomap branch.

Signed-off-by: Tejun Heo <htejun@gmail.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>

1 files changed, 22 insertions, 11 deletions

diff --git a/drivers/ata/pata_cs5520.c b/drivers/ata/pata_cs5520.c
index 63bdcbe45583..801a00efa3ee 100644
--- a/drivers/ata/pata_cs5520.c
+++ b/drivers/ata/pata_cs5520.c
@@ -99,9 +99,9 @@ static void cs5520_set_timings(struct ata_port *ap, struct ata_device *adev, int
 static void cs5520_enable_dma(struct ata_port *ap, struct ata_device *adev)
 {
         /* Set the DMA enable/disable flag */
-        u8 reg = inb(ap->ioaddr.bmdma_addr + 0x02);
+        u8 reg = ioread8(ap->ioaddr.bmdma_addr + 0x02);
         reg |= 1<<(adev->devno + 5);
-        outb(reg, ap->ioaddr.bmdma_addr + 0x02);
+        iowrite8(reg, ap->ioaddr.bmdma_addr + 0x02);
 }
 
 /**
@@ -193,7 +193,7 @@ static struct ata_port_operations cs5520_port_ops = {
         .bmdma_status           = ata_bmdma_status,
         .qc_prep                = ata_qc_prep,
         .qc_issue               = ata_qc_issue_prot,
-        .data_xfer              = ata_pio_data_xfer,
+        .data_xfer              = ata_data_xfer,
 
         .irq_handler            = ata_interrupt,
         .irq_clear              = ata_bmdma_irq_clear,
@@ -204,6 +204,7 @@ static struct ata_port_operations cs5520_port_ops = {
 static int __devinit cs5520_init_one(struct pci_dev *dev, const struct pci_device_id *id)
 {
         u8 pcicfg;
+        void *iomap[5];
         static struct ata_probe_ent probe[2];
         int ports = 0;
 
@@ -234,6 +235,16 @@ static int __devinit cs5520_init_one(struct pci_dev *dev, const struct pci_devic
                 return -ENODEV;
         }
 
+        /* Map IO ports */
+        iomap[0] = devm_ioport_map(&dev->dev, 0x1F0, 8);
+        iomap[1] = devm_ioport_map(&dev->dev, 0x3F6, 1);
+        iomap[2] = devm_ioport_map(&dev->dev, 0x170, 8);
+        iomap[3] = devm_ioport_map(&dev->dev, 0x376, 1);
+        iomap[4] = pcim_iomap(dev, 2, 0);
+
+        if (!iomap[0] || !iomap[1] || !iomap[2] || !iomap[3] || !iomap[4])
+                return -ENOMEM;
+
         /* We have to do our own plumbing as the PCI setup for this
            chipset is non-standard so we can't punt to the libata code */
 
@@ -247,10 +258,10 @@ static int __devinit cs5520_init_one(struct pci_dev *dev, const struct pci_devic
         probe[0].irq_flags = 0;
         probe[0].port_flags = ATA_FLAG_SLAVE_POSS|ATA_FLAG_SRST;
         probe[0].n_ports = 1;
-        probe[0].port[0].cmd_addr = 0x1F0;
-        probe[0].port[0].ctl_addr = 0x3F6;
-        probe[0].port[0].altstatus_addr = 0x3F6;
-        probe[0].port[0].bmdma_addr = pci_resource_start(dev, 2);
+        probe[0].port[0].cmd_addr = iomap[0];
+        probe[0].port[0].ctl_addr = iomap[1];
+        probe[0].port[0].altstatus_addr = iomap[1];
+        probe[0].port[0].bmdma_addr = iomap[4];
 
         /* The secondary lurks at different addresses but is otherwise
            the same beastie */
@@ -258,10 +269,10 @@ static int __devinit cs5520_init_one(struct pci_dev *dev, const struct pci_devic
         probe[1] = probe[0];
         INIT_LIST_HEAD(&probe[1].node);
         probe[1].irq = 15;
-        probe[1].port[0].cmd_addr = 0x170;
-        probe[1].port[0].ctl_addr = 0x376;
-        probe[1].port[0].altstatus_addr = 0x376;
-        probe[1].port[0].bmdma_addr = pci_resource_start(dev, 2) + 8;
+        probe[1].port[0].cmd_addr = iomap[2];
+        probe[1].port[0].ctl_addr = iomap[3];
+        probe[1].port[0].altstatus_addr = iomap[3];
+        probe[1].port[0].bmdma_addr = iomap[4] + 8;
 
         /* Let libata fill in the port details */
         ata_std_ports(&probe[0].port[0]);