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author | Sudip Mukherjee <sudipm.mukherjee@gmail.com> | 2015-09-29 16:04:36 -0700 |
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committer | Dmitry Torokhov <dmitry.torokhov@gmail.com> | 2015-10-05 17:50:24 -0700 |
commit | 33ca8ab97cbb676d11a4b026ad392c046893a6dc (patch) | |
tree | 75da8d856942ba934b814803373c009cf54b340b /drivers | |
parent | 7b415285ae96f5bfa0fa95d3227c6900c4ff151d (diff) | |
download | linux-stable-33ca8ab97cbb676d11a4b026ad392c046893a6dc.tar.gz linux-stable-33ca8ab97cbb676d11a4b026ad392c046893a6dc.tar.bz2 linux-stable-33ca8ab97cbb676d11a4b026ad392c046893a6dc.zip |
Input: parkbd - use parallel port device model
Modify parkbd driver to use the new Parallel Port device model.
Signed-off-by: Sudip Mukherjee <sudip@vectorindia.org>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Diffstat (limited to 'drivers')
-rw-r--r-- | drivers/input/serio/parkbd.c | 55 |
1 files changed, 37 insertions, 18 deletions
diff --git a/drivers/input/serio/parkbd.c b/drivers/input/serio/parkbd.c index 1e8cd6f1fe9e..74bb17270255 100644 --- a/drivers/input/serio/parkbd.c +++ b/drivers/input/serio/parkbd.c @@ -141,19 +141,15 @@ static void parkbd_interrupt(void *dev_id) parkbd_last = jiffies; } -static int parkbd_getport(void) +static int parkbd_getport(struct parport *pp) { - struct parport *pp; + struct pardev_cb parkbd_parport_cb; - pp = parport_find_number(parkbd_pp_no); + parkbd_parport_cb.irq_func = parkbd_interrupt; + parkbd_parport_cb.flags = PARPORT_FLAG_EXCL; - if (pp == NULL) { - printk(KERN_ERR "parkbd: no such parport\n"); - return -ENODEV; - } - - parkbd_dev = parport_register_device(pp, "parkbd", NULL, NULL, parkbd_interrupt, PARPORT_DEV_EXCL, NULL); - parport_put_port(pp); + parkbd_dev = parport_register_dev_model(pp, "parkbd", + &parkbd_parport_cb, 0); if (!parkbd_dev) return -ENODEV; @@ -183,19 +179,21 @@ static struct serio * __init parkbd_allocate_serio(void) return serio; } -static int __init parkbd_init(void) +static void parkbd_attach(struct parport *pp) { - int err; + if (pp->number != parkbd_pp_no) { + pr_debug("Not using parport%d.\n", pp->number); + return; + } - err = parkbd_getport(); - if (err) - return err; + if (parkbd_getport(pp)) + return; parkbd_port = parkbd_allocate_serio(); if (!parkbd_port) { parport_release(parkbd_dev); parport_unregister_device(parkbd_dev); - return -ENOMEM; + return; } parkbd_writelines(3); @@ -205,14 +203,35 @@ static int __init parkbd_init(void) printk(KERN_INFO "serio: PARKBD %s adapter on %s\n", parkbd_mode ? "AT" : "XT", parkbd_dev->port->name); - return 0; + return; } -static void __exit parkbd_exit(void) +static void parkbd_detach(struct parport *port) { + if (!parkbd_port || port->number != parkbd_pp_no) + return; + parport_release(parkbd_dev); serio_unregister_port(parkbd_port); parport_unregister_device(parkbd_dev); + parkbd_port = NULL; +} + +static struct parport_driver parkbd_parport_driver = { + .name = "parkbd", + .match_port = parkbd_attach, + .detach = parkbd_detach, + .devmodel = true, +}; + +static int __init parkbd_init(void) +{ + return parport_register_driver(&parkbd_parport_driver); +} + +static void __exit parkbd_exit(void) +{ + parport_unregister_driver(&parkbd_parport_driver); } module_init(parkbd_init); |