ide: add ide_pci_remove() helper

* Add 'unsigned long host_flags' field to struct ide_host.

* Set ->host_flags in ide_host_alloc_all().

* Always set PCI dev's ->driver_data in ide_pci_init_{one,two}().

* Add ide_pci_remove() helper (the default implementation for
  struct pci_driver's ->remove method).

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

diff --git a/drivers/ide/ide-probe.c b/drivers/ide/ide-probe.c
index 9ab5892..f0c1624 100644 (file)
--- a/drivers/ide/ide-probe.c
+++ b/drivers/ide/ide-probe.c
@@ -1609,6 +1609,9 @@ struct ide_host *ide_host_alloc_all(const struct ide_port_info *d,
        if (hws[0])
                host->dev[0] = hws[0]->dev;
 
+       if (d)
+               host->host_flags = d->host_flags;
+
        return host;
 }
 EXPORT_SYMBOL_GPL(ide_host_alloc_all);

diff --git a/drivers/ide/setup-pci.c b/drivers/ide/setup-pci.c
index ca17bf8..20f0ee0 100644 (file)
--- a/drivers/ide/setup-pci.c
+++ b/drivers/ide/setup-pci.c
@@ -548,8 +548,7 @@ int ide_pci_init_one(struct pci_dev *dev, const struct ide_port_info *d,
 
        host->host_priv = priv;
 
-       if (priv)
-               pci_set_drvdata(dev, host);
+       pci_set_drvdata(dev, host);
 
        ret = do_ide_setup_pci_device(dev, d, 1);
        if (ret < 0)
@@ -593,10 +592,8 @@ int ide_pci_init_two(struct pci_dev *dev1, struct pci_dev *dev2,
 
        host->host_priv = priv;
 
-       if (priv) {
-               pci_set_drvdata(pdev[0], host);
-               pci_set_drvdata(pdev[1], host);
-       }
+       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);
@@ -619,3 +616,33 @@ out:
        return ret;
 }
 EXPORT_SYMBOL_GPL(ide_pci_init_two);
+
+void ide_pci_remove(struct pci_dev *dev)
+{
+       struct ide_host *host = pci_get_drvdata(dev);
+       struct pci_dev *dev2 = host->dev[1] ? to_pci_dev(host->dev[1]) : NULL;
+       int bars;
+
+       if (host->host_flags & IDE_HFLAG_SINGLE)
+               bars = (1 << 2) - 1;
+       else
+               bars = (1 << 4) - 1;
+
+       if ((host->host_flags & IDE_HFLAG_NO_DMA) == 0) {
+               if (host->host_flags & IDE_HFLAG_CS5520)
+                       bars |= (1 << 2);
+               else
+                       bars |= (1 << 4);
+       }
+
+       ide_host_remove(host);
+
+       if (dev2)
+               pci_release_selected_regions(dev2, bars);
+       pci_release_selected_regions(dev, bars);
+
+       if (dev2)
+               pci_disable_device(dev2);
+       pci_disable_device(dev);
+}
+EXPORT_SYMBOL_GPL(ide_pci_remove);

diff --git a/include/linux/ide.h b/include/linux/ide.h
index 3eccac0..dbd0aeb 100644 (file)
--- a/include/linux/ide.h
+++ b/include/linux/ide.h
@@ -631,6 +631,7 @@ struct ide_host {
        ide_hwif_t      *ports[MAX_HWIFS];
        unsigned int    n_ports;
        struct device   *dev[2];
+       unsigned long   host_flags;
        void            *host_priv;
 };
 
@@ -1213,6 +1214,7 @@ struct ide_port_info {
 int ide_pci_init_one(struct pci_dev *, const struct ide_port_info *, void *);
 int ide_pci_init_two(struct pci_dev *, struct pci_dev *,
                     const struct ide_port_info *, void *);
+void ide_pci_remove(struct pci_dev *);
 
 void ide_map_sg(ide_drive_t *, struct request *);
 void ide_init_sg_cmd(ide_drive_t *, struct request *);