ide: add ->dev and ->host_priv fields to struct ide_host

* Add 'struct device *dev[2]' and 'void *host_priv' fields
  to struct ide_host.

* Set ->dev[] in ide_host_alloc_all()/ide_setup_pci_device[s]().

* Pass 'void *priv' argument to ide_setup_pci_device[s]()
  and use it to set ->host_priv.

* Set PCI dev's ->driver_data to point to the struct ide_host
  instance if PCI host driver wants to use ->host_priv.

* Rename ide_setup_pci_device[s]() to ide_pci_init_{one,two}().

Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>

1 files changed, 45 insertions, 7 deletions

diff --git a/drivers/ide/setup-pci.c b/drivers/ide/setup-pci.c
index b85de71fdc88..ca17bf8896df 100644
--- a/drivers/ide/setup-pci.c
+++ b/drivers/ide/setup-pci.c
@@ -525,8 +525,10 @@ out:
         return ret;
 }
 
-int ide_setup_pci_device(struct pci_dev *dev, const struct ide_port_info *d)
+int ide_pci_init_one(struct pci_dev *dev, const struct ide_port_info *d,
+                     void *priv)
 {
+        struct ide_host *host;
         hw_regs_t hw[4], *hws[] = { NULL, NULL, NULL, NULL };
         int ret;
 
@@ -536,6 +538,19 @@ int ide_setup_pci_device(struct pci_dev *dev, const struct ide_port_info *d)
 
         ide_pci_setup_ports(dev, d, 0, &hw[0], &hws[0]);
 
+        host = ide_host_alloc(d, hws);
+        if (host == NULL) {
+                ret = -ENOMEM;
+                goto out;
+        }
+
+        host->dev[0] = &dev->dev;
+
+        host->host_priv = priv;
+
+        if (priv)
+                pci_set_drvdata(dev, host);
+
         ret = do_ide_setup_pci_device(dev, d, 1);
         if (ret < 0)
                 goto out;
@@ -543,16 +558,19 @@ int ide_setup_pci_device(struct pci_dev *dev, const struct ide_port_info *d)
         /* fixup IRQ */
         hw[1].irq = hw[0].irq = ret;
 
-        ret = ide_host_add(d, hws, NULL);
+        ret = ide_host_register(host, d, hws);
+        if (ret)
+                ide_host_free(host);
 out:
         return ret;
 }
-EXPORT_SYMBOL_GPL(ide_setup_pci_device);
+EXPORT_SYMBOL_GPL(ide_pci_init_one);
 
-int ide_setup_pci_devices(struct pci_dev *dev1, struct pci_dev *dev2,
-                          const struct ide_port_info *d)
+int ide_pci_init_two(struct pci_dev *dev1, struct pci_dev *dev2,
+                     const struct ide_port_info *d, void *priv)
 {
         struct pci_dev *pdev[] = { dev1, dev2 };
+        struct ide_host *host;
         int ret, i;
         hw_regs_t hw[4], *hws[] = { NULL, NULL, NULL, NULL };
 
@@ -562,7 +580,25 @@ int ide_setup_pci_devices(struct pci_dev *dev1, struct pci_dev *dev2,
                         goto out;
 
                 ide_pci_setup_ports(pdev[i], d, 0, &hw[i*2], &hws[i*2]);
+        }
 
+        host = ide_host_alloc(d, hws);
+        if (host == NULL) {
+                ret = -ENOMEM;
+                goto out;
+        }
+
+        host->dev[0] = &dev1->dev;
+        host->dev[1] = &dev2->dev;
+
+        host->host_priv = priv;
+
+        if (priv) {
+                pci_set_drvdata(pdev[0], host);
+                pci_set_drvdata(pdev[1], host);
+        }
+
+        for (i = 0; i < 2; i++) {
                 ret = do_ide_setup_pci_device(pdev[i], d, !i);
 
                 /*
@@ -576,8 +612,10 @@ int ide_setup_pci_devices(struct pci_dev *dev1, struct pci_dev *dev2,
                 hw[i*2 + 1].irq = hw[i*2].irq = ret;
         }
 
-        ret = ide_host_add(d, hws, NULL);
+        ret = ide_host_register(host, d, hws);
+        if (ret)
+                ide_host_free(host);
 out:
         return ret;
 }
-EXPORT_SYMBOL_GPL(ide_setup_pci_devices);
+EXPORT_SYMBOL_GPL(ide_pci_init_two);