[PATCH] omap_cf: oops-on-suspend fix

Convert omap_cf into a platform_driver ...  this resolves oopsing during
suspend/resume.

Evidently folk haven't tried suspend/resume on an OSK (the main platform
for this driver) since September or so, which is when platform_device
learned about suspend_late()/resume_early() and stopped being able to
suspend/resume without a platform_driver.

Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
Cc: Dominik Brodowski <linux@dominikbrodowski.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

1 files changed, 25 insertions, 16 deletions

diff --git a/drivers/pcmcia/omap_cf.c b/drivers/pcmcia/omap_cf.c
index d77f75129f8..2df216b0081 100644
--- a/drivers/pcmcia/omap_cf.c
+++ b/drivers/pcmcia/omap_cf.c
@@ -202,15 +202,14 @@ static struct pccard_operations omap_cf_ops = {
  * "what chipselect is used".  Boards could want more.
  */
 
-static int __devinit omap_cf_probe(struct device *dev)
+static int __init omap_cf_probe(struct platform_device *pdev)
 {
         unsigned                seg;
         struct omap_cf_socket   *cf;
-        struct platform_device  *pdev = to_platform_device(dev);
         int                     irq;
         int                     status;
 
-        seg = (int) dev->platform_data;
+        seg = (int) pdev->dev.platform_data;
         if (seg == 0 || seg > 3)
                 return -ENODEV;
 
@@ -227,7 +226,7 @@ static int __devinit omap_cf_probe(struct device *dev)
         cf->timer.data = (unsigned long) cf;
 
         cf->pdev = pdev;
-        dev_set_drvdata(dev, cf);
+        platform_set_drvdata(pdev, cf);
 
         /* this primarily just shuts up irq handling noise */
         status = request_irq(irq, omap_cf_irq, IRQF_SHARED,
@@ -291,7 +290,7 @@ static int __devinit omap_cf_probe(struct device *dev)
                 omap_cf_present() ? "present" : "(not present)");
 
         cf->socket.owner = THIS_MODULE;
-        cf->socket.dev.parent = dev;
+        cf->socket.dev.parent = &pdev->dev;
         cf->socket.ops = &omap_cf_ops;
         cf->socket.resource_ops = &pccard_static_ops;
         cf->socket.features = SS_CAP_PCCARD | SS_CAP_STATIC_MAP
@@ -318,9 +317,9 @@ fail0:
         return status;
 }
 
-static int __devexit omap_cf_remove(struct device *dev)
+static int __exit omap_cf_remove(struct platform_device *pdev)
 {
-        struct omap_cf_socket *cf = dev_get_drvdata(dev);
+        struct omap_cf_socket *cf = platform_get_drvdata(pdev);
 
         cf->active = 0;
         pcmcia_unregister_socket(&cf->socket);
@@ -332,26 +331,36 @@ static int __devexit omap_cf_remove(struct device *dev)
         return 0;
 }
 
-static struct device_driver omap_cf_driver = {
-        .name           = (char *) driver_name,
-        .bus            = &platform_bus_type,
-        .probe          = omap_cf_probe,
-        .remove         = __devexit_p(omap_cf_remove),
-        .suspend        = pcmcia_socket_dev_suspend,
-        .resume         = pcmcia_socket_dev_resume,
+static int omap_cf_suspend(struct platform_device *pdev, pm_message_t mesg)
+{
+        return pcmcia_socket_dev_suspend(&pdev->dev, mesg);
+}
+
+static int omap_cf_resume(struct platform_device *pdev)
+{
+        return pcmcia_socket_dev_resume(&pdev->dev);
+}
+
+static struct platform_driver omap_cf_driver = {
+        .driver = {
+                .name   = (char *) driver_name,
+        },
+        .remove         = __exit_p(omap_cf_remove),
+        .suspend        = omap_cf_suspend,
+        .resume         = omap_cf_resume,
 };
 
 static int __init omap_cf_init(void)
 {
         if (cpu_is_omap16xx())
-                return driver_register(&omap_cf_driver);
+                return platform_driver_probe(&omap_cf_driver, omap_cf_probe);
         return -ENODEV;
 }
 
 static void __exit omap_cf_exit(void)
 {
         if (cpu_is_omap16xx())
-                driver_unregister(&omap_cf_driver);
+                platform_driver_unregister(&omap_cf_driver);
 }
 
 module_init(omap_cf_init);