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authorGrant Likely <grant.likely@secretlab.ca>2007-10-01 16:33:53 +0200
committerJens Axboe <axboe@carl.home.kernel.dk>2007-10-10 09:25:58 +0200
commit1b455466549f46bab0a75a7a296a9331a38fd6fa (patch)
tree2b912166ff08995d3508cf1888280a5a47d01a53 /drivers/block/xsysace.c
parentedec49616c7b4ad7ceb3b936a8d95b10652ee677 (diff)
downloadop-kernel-dev-1b455466549f46bab0a75a7a296a9331a38fd6fa.zip
op-kernel-dev-1b455466549f46bab0a75a7a296a9331a38fd6fa.tar.gz
Sysace: Move structure allocation from bus binding into common code
Split the determination of device registers/irqs/etc from the actual allocation and initialization of the device structure. This cleans up the code a bit in preparation to add an of_platform bus binding Signed-off-by: Grant Likely <grant.likely@secretlab.ca> Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
Diffstat (limited to 'drivers/block/xsysace.c')
-rw-r--r--drivers/block/xsysace.c99
1 files changed, 61 insertions, 38 deletions
diff --git a/drivers/block/xsysace.c b/drivers/block/xsysace.c
index b104476..555939b 100644
--- a/drivers/block/xsysace.c
+++ b/drivers/block/xsysace.c
@@ -1033,7 +1033,7 @@ static int __devinit ace_setup(struct ace_device *ace)
if (ace->irq != NO_IRQ)
free_irq(ace->irq, ace);
err_ioremap:
- printk(KERN_INFO "xsysace: error initializing device at 0x%lx\n",
+ dev_info(ace->dev, "xsysace: error initializing device at 0x%lx\n",
ace->physaddr);
return -ENOMEM;
}
@@ -1056,68 +1056,91 @@ static void __devexit ace_teardown(struct ace_device *ace)
iounmap(ace->baseaddr);
}
-/* ---------------------------------------------------------------------
- * Platform Bus Support
- */
-
-static int __devinit ace_probe(struct platform_device *dev)
+static int __devinit
+ace_alloc(struct device *dev, int id, unsigned long physaddr,
+ int irq, int bus_width)
{
struct ace_device *ace;
- int i;
+ int rc;
+ dev_dbg(dev, "ace_alloc(%p)\n", dev);
- dev_dbg(&dev->dev, "ace_probe(%p)\n", dev);
+ if (!physaddr) {
+ rc = -ENODEV;
+ goto err_noreg;
+ }
- /*
- * Allocate the ace device structure
- */
+ /* Allocate and initialize the ace device structure */
ace = kzalloc(sizeof(struct ace_device), GFP_KERNEL);
- if (!ace)
+ if (!ace) {
+ rc = -ENOMEM;
goto err_alloc;
-
- ace->dev = &dev->dev;
- ace->id = dev->id;
- ace->irq = NO_IRQ;
-
- for (i = 0; i < dev->num_resources; i++) {
- if (dev->resource[i].flags & IORESOURCE_MEM)
- ace->physaddr = dev->resource[i].start;
- if (dev->resource[i].flags & IORESOURCE_IRQ)
- ace->irq = dev->resource[i].start;
}
- /* FIXME: Should get bus_width from the platform_device struct */
- ace->bus_width = 1;
-
- platform_set_drvdata(dev, ace);
+ ace->dev = dev;
+ ace->id = id;
+ ace->physaddr = physaddr;
+ ace->irq = irq;
+ ace->bus_width = bus_width;
- /* Call the bus-independant setup code */
- if (ace_setup(ace) != 0)
+ /* Call the setup code */
+ if ((rc = ace_setup(ace)) != 0)
goto err_setup;
+ dev_set_drvdata(dev, ace);
return 0;
err_setup:
- platform_set_drvdata(dev, NULL);
+ dev_set_drvdata(dev, NULL);
kfree(ace);
err_alloc:
- printk(KERN_ERR "xsysace: could not initialize device\n");
- return -ENOMEM;
+ err_noreg:
+ dev_err(dev, "could not initialize device, err=%i\n", rc);
+ return rc;
}
-/*
- * Platform bus remove() method
- */
-static int __devexit ace_remove(struct platform_device *dev)
+static void __devexit ace_free(struct device *dev)
{
- struct ace_device *ace = platform_get_drvdata(dev);
- dev_dbg(&dev->dev, "ace_remove(%p)\n", dev);
+ struct ace_device *ace = dev_get_drvdata(dev);
+ dev_dbg(dev, "ace_free(%p)\n", dev);
if (ace) {
ace_teardown(ace);
- platform_set_drvdata(dev, NULL);
+ dev_set_drvdata(dev, NULL);
kfree(ace);
}
+}
+
+/* ---------------------------------------------------------------------
+ * Platform Bus Support
+ */
+
+static int __devinit ace_probe(struct platform_device *dev)
+{
+ unsigned long physaddr = 0;
+ int bus_width = 1; /* FIXME: should not be hard coded */
+ int id = dev->id;
+ int irq = NO_IRQ;
+ int i;
+
+ dev_dbg(&dev->dev, "ace_probe(%p)\n", dev);
+
+ for (i = 0; i < dev->num_resources; i++) {
+ if (dev->resource[i].flags & IORESOURCE_MEM)
+ physaddr = dev->resource[i].start;
+ if (dev->resource[i].flags & IORESOURCE_IRQ)
+ irq = dev->resource[i].start;
+ }
+
+ /* Call the bus-independant setup code */
+ return ace_alloc(&dev->dev, id, physaddr, irq, bus_width);
+}
+/*
+ * Platform bus remove() method
+ */
+static int __devexit ace_remove(struct platform_device *dev)
+{
+ ace_free(&dev->dev);
return 0;
}
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