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, 11 insertions, 4 deletions

diff --git a/drivers/ata/pata_isapnp.c b/drivers/ata/pata_isapnp.c
index 38a42eae598e..4d9ab268cf28 100644
--- a/drivers/ata/pata_isapnp.c
+++ b/drivers/ata/pata_isapnp.c
@@ -53,7 +53,7 @@ static struct ata_port_operations isapnp_port_ops = {
         .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,
@@ -73,6 +73,7 @@ static struct ata_port_operations isapnp_port_ops = {
 static int isapnp_init_one(struct pnp_dev *idev, const struct pnp_device_id *dev_id)
 {
         struct ata_probe_ent ae;
+        void __iomem *cmd_addr, *ctl_addr;
 
         if (pnp_port_valid(idev, 0) == 0)
                 return -ENODEV;
@@ -81,6 +82,10 @@ static int isapnp_init_one(struct pnp_dev *idev, const struct pnp_device_id *dev
         if (pnp_irq_valid(idev, 0) == 0)
                 return -ENODEV;
 
+        cmd_addr = devm_ioport_map(&idev->dev, pnp_port_start(idev, 0), 8);
+        if (!cmd_addr)
+                return -ENOMEM;
+
         memset(&ae, 0, sizeof(struct ata_probe_ent));
         INIT_LIST_HEAD(&ae.node);
         ae.dev = &idev->dev;
@@ -91,11 +96,13 @@ static int isapnp_init_one(struct pnp_dev *idev, const struct pnp_device_id *dev
         ae.irq = pnp_irq(idev, 0);
         ae.irq_flags = 0;
         ae.port_flags = ATA_FLAG_SLAVE_POSS;
-        ae.port[0].cmd_addr = pnp_port_start(idev, 0);
+        ae.port[0].cmd_addr = cmd_addr;
 
         if (pnp_port_valid(idev, 1) == 0) {
-                ae.port[0].altstatus_addr = pnp_port_start(idev, 1);
-                ae.port[0].ctl_addr = pnp_port_start(idev, 1);
+                ctl_addr = devm_ioport_map(&idev->dev,
+                                           pnp_port_start(idev, 1), 1);
+                ae.port[0].altstatus_addr = ctl_addr;
+                ae.port[0].ctl_addr = ctl_addr;
                 ae.port_flags |= ATA_FLAG_SRST;
         }
         ata_std_ports(&ae.port[0]);