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path: root/drivers/input/serio/ct82c710.c
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Diffstat (limited to 'drivers/input/serio/ct82c710.c')
-rw-r--r--drivers/input/serio/ct82c710.c89
1 files changed, 63 insertions, 26 deletions
diff --git a/drivers/input/serio/ct82c710.c b/drivers/input/serio/ct82c710.c
index 4da6c86..096b6a0 100644
--- a/drivers/input/serio/ct82c710.c
+++ b/drivers/input/serio/ct82c710.c
@@ -154,7 +154,7 @@ static int ct82c710_write(struct serio *port, unsigned char c)
* See if we can find a 82C710 device. Read mouse address.
*/
-static int __init ct82c710_probe(void)
+static int __init ct82c710_detect(void)
{
outb_p(0x55, 0x2fa); /* Any value except 9, ff or 36 */
outb_p(0xaa, 0x3fa); /* Inverse of 55 */
@@ -163,7 +163,7 @@ static int __init ct82c710_probe(void)
outb_p(0x1b, 0x2fa); /* Inverse of e4 */
outb_p(0x0f, 0x390); /* Write index */
if (inb_p(0x391) != 0xe4) /* Config address found? */
- return -1; /* No: no 82C710 here */
+ return -ENODEV; /* No: no 82C710 here */
outb_p(0x0d, 0x390); /* Write index */
ct82c710_iores.start = inb_p(0x391) << 2; /* Get mouse I/O address */
@@ -175,51 +175,88 @@ static int __init ct82c710_probe(void)
return 0;
}
-static struct serio * __init ct82c710_allocate_port(void)
+static int __devinit ct82c710_probe(struct platform_device *dev)
{
- struct serio *serio;
-
- serio = kmalloc(sizeof(struct serio), GFP_KERNEL);
- if (serio) {
- memset(serio, 0, sizeof(struct serio));
- serio->id.type = SERIO_8042;
- serio->open = ct82c710_open;
- serio->close = ct82c710_close;
- serio->write = ct82c710_write;
- serio->dev.parent = &ct82c710_device->dev;
- strlcpy(serio->name, "C&T 82c710 mouse port", sizeof(serio->name));
- snprintf(serio->phys, sizeof(serio->phys), "isa%04lx/serio0", CT82C710_DATA);
- }
+ ct82c710_port = kzalloc(sizeof(struct serio), GFP_KERNEL);
+ if (!ct82c710_port)
+ return -ENOMEM;
+
+ ct82c710_port->id.type = SERIO_8042;
+ ct82c710_port->dev.parent = &dev->dev;
+ ct82c710_port->open = ct82c710_open;
+ ct82c710_port->close = ct82c710_close;
+ ct82c710_port->write = ct82c710_write;
+ strlcpy(ct82c710_port->name, "C&T 82c710 mouse port",
+ sizeof(ct82c710_port->name));
+ snprintf(ct82c710_port->phys, sizeof(ct82c710_port->phys),
+ "isa%04lx/serio0", CT82C710_DATA);
+
+ serio_register_port(ct82c710_port);
+
+ return 0;
+}
+
+static int __devexit ct82c710_remove(struct platform_device *dev)
+{
+ serio_unregister_port(ct82c710_port);
- return serio;
+ return 0;
}
+static struct platform_driver ct82c710_driver = {
+ .driver = {
+ .name = "ct82c710",
+ .owner = THIS_MODULE,
+ },
+ .probe = ct82c710_probe,
+ .remove = __devexit_p(ct82c710_remove),
+};
+
+
static int __init ct82c710_init(void)
{
- if (ct82c710_probe())
- return -ENODEV;
+ int error;
- ct82c710_device = platform_device_register_simple("ct82c710", -1, &ct82c710_iores, 1);
- if (IS_ERR(ct82c710_device))
- return PTR_ERR(ct82c710_device);
+ error = ct82c710_detect();
+ if (error)
+ return error;
- if (!(ct82c710_port = ct82c710_allocate_port())) {
- platform_device_unregister(ct82c710_device);
- return -ENOMEM;
+ error = platform_driver_register(&ct82c710_driver);
+ if (error)
+ return error;
+
+ ct82c710_device = platform_device_alloc("ct82c710", -1);
+ if (!ct82c710_device) {
+ error = -ENOMEM;
+ goto err_unregister_driver;
}
+ error = platform_device_add_resources(ct82c710_device, &ct82c710_iores, 1);
+ if (error)
+ goto err_free_device;
+
+ error = platform_device_add(ct82c710_device);
+ if (error)
+ goto err_free_device;
+
serio_register_port(ct82c710_port);
printk(KERN_INFO "serio: C&T 82c710 mouse port at %#lx irq %d\n",
CT82C710_DATA, CT82C710_IRQ);
return 0;
+
+ err_free_device:
+ platform_device_put(ct82c710_device);
+ err_unregister_driver:
+ platform_driver_unregister(&ct82c710_driver);
+ return error;
}
static void __exit ct82c710_exit(void)
{
- serio_unregister_port(ct82c710_port);
platform_device_unregister(ct82c710_device);
+ platform_driver_unregister(&ct82c710_driver);
}
module_init(ct82c710_init);
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