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Input: q40kbd - convert to the new platform device interface

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Do not use platform_device_register_simple() as it is going away,
implement ->probe() and ->remove() functions so manual binding and
unbinding will work with this driver.

Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
This commit is contained in:
Dmitry Torokhov 2005-12-28 01:25:42 -05:00
parent 916d83cfe5
commit 26421c7acc
1 changed files with 63 additions and 38 deletions
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101
drivers/input/serio/q40kbd.c
View file

@ -75,13 +75,13 @@ static irqreturn_t q40kbd_interrupt(int irq, void *dev_id, struct pt_regs *regs)
static void q40kbd_flush(void)
{
int maxread = 100;
int maxread = 100;
unsigned long flags;
spin_lock_irqsave(&q40kbd_lock, flags);
while (maxread-- && (Q40_IRQ_KEYB_MASK & master_inb(INTERRUPT_REG)))
master_inb(KEYCODE_REG);
while (maxread-- && (Q40_IRQ_KEYB_MASK & master_inb(INTERRUPT_REG)))
master_inb(KEYCODE_REG);
spin_unlock_irqrestore(&q40kbd_lock, flags);
}
@ -97,14 +97,14 @@ static int q40kbd_open(struct serio *port)
if (request_irq(Q40_IRQ_KEYBOARD, q40kbd_interrupt, 0, "q40kbd", NULL)) {
printk(KERN_ERR "q40kbd.c: Can't get irq %d.\n", Q40_IRQ_KEYBOARD);
return -1;
return -EBUSY;
}
/* off we go */
master_outb(-1, KEYBOARD_UNLOCK_REG);
master_outb(1, KEY_IRQ_ENABLE_REG);
/* off we go */
master_outb(-1, KEYBOARD_UNLOCK_REG);
master_outb(1, KEY_IRQ_ENABLE_REG);
return 0;
return 0;
}
static void q40kbd_close(struct serio *port)
@ -116,37 +116,18 @@ static void q40kbd_close(struct serio *port)
q40kbd_flush();
}
static struct serio * __init q40kbd_allocate_port(void)
static int __devinit q40kbd_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 = q40kbd_open;
serio->close = q40kbd_close;
serio->dev.parent = &q40kbd_device->dev;
strlcpy(serio->name, "Q40 Kbd Port", sizeof(serio->name));
strlcpy(serio->phys, "Q40", sizeof(serio->phys));
}
return serio;
}
static int __init q40kbd_init(void)
{
if (!MACH_IS_Q40)
return -EIO;
q40kbd_device = platform_device_register_simple("q40kbd", -1, NULL, 0);
if (IS_ERR(q40kbd_device))
return PTR_ERR(q40kbd_device);
if (!(q40kbd_port = q40kbd_allocate_port())) {
platform_device_unregister(q40kbd_device);
q40kbd_port = kzalloc(sizeof(struct serio), GFP_KERNEL);
if (!q40kbd_port)
return -ENOMEM;
}
q40kbd_port->id.type = SERIO_8042;
q40kbd_port->open = q40kbd_open;
q40kbd_port->close = q40kbd_close;
q40kbd_port->dev.parent = &dev->dev;
strlcpy(q40kbd_port->name, "Q40 Kbd Port", sizeof(q40kbd_port->name));
strlcpy(q40kbd_port->phys, "Q40", sizeof(q40kbd_port->phys));
serio_register_port(q40kbd_port);
printk(KERN_INFO "serio: Q40 kbd registered\n");
@ -154,10 +135,54 @@ static int __init q40kbd_init(void)
return 0;
}
static void __exit q40kbd_exit(void)
static int __devexit q40kbd_remove(struct platform_device *dev)
{
serio_unregister_port(q40kbd_port);
return 0;
}
static struct platform_driver q40kbd_driver = {
.driver = {
.name = "q40kbd",
.owner = THIS_MODULE,
},
.probe = q40kbd_probe,
.remove = __devexit_p(q40kbd_remove),
};
static int __init q40kbd_init(void)
{
int error;
if (!MACH_IS_Q40)
return -EIO;
error = platform_driver_register(&q40kbd_driver);
if (error)
return error;
q40kbd_device = platform_device_alloc("q40kbd", -1);
if (!q40kbd_device)
goto err_unregister_driver;
error = platform_device_add(q40kbd_device);
if (error)
goto err_free_device;
return 0;
err_free_device:
platform_device_put(q40kbd_device);
err_unregister_driver:
platform_driver_unregister(&q40kbd_driver);
return error;
}
static void __exit q40kbd_exit(void)
{
platform_device_unregister(q40kbd_device);
platform_driver_unregister(&q40kbd_driver);
}
module_init(q40kbd_init);