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path: root/drivers/pps/generators/pps_gen_parport.c
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Diffstat (limited to 'drivers/pps/generators/pps_gen_parport.c')
-rw-r--r--drivers/pps/generators/pps_gen_parport.c49
1 files changed, 9 insertions, 40 deletions
diff --git a/drivers/pps/generators/pps_gen_parport.c b/drivers/pps/generators/pps_gen_parport.c
index 6a1af7664f3b..05bbf8d30ef1 100644
--- a/drivers/pps/generators/pps_gen_parport.c
+++ b/drivers/pps/generators/pps_gen_parport.c
@@ -20,8 +20,6 @@
#include <linux/hrtimer.h>
#include <linux/parport.h>
-#define DRVDESC "parallel port PPS signal generator"
-
#define SIGNAL 0
#define NO_SIGNAL PARPORT_CONTROL_STROBE
@@ -82,8 +80,7 @@ static enum hrtimer_restart hrtimer_event(struct hrtimer *timer)
/* check if we are late */
if (expire_time.tv_sec != ts1.tv_sec || ts1.tv_nsec > lim) {
local_irq_restore(flags);
- pr_err("we are late this time %lld.%09ld\n",
- (s64)ts1.tv_sec, ts1.tv_nsec);
+ pr_err("we are late this time %ptSp\n", &ts1);
goto done;
}
@@ -180,6 +177,11 @@ static void parport_attach(struct parport *port)
{
struct pardev_cb pps_cb;
+ if (send_delay > SEND_DELAY_MAX) {
+ pr_err("delay value should be not greater then %d\n", SEND_DELAY_MAX);
+ return;
+ }
+
if (attached) {
/* we already have a port */
return;
@@ -205,8 +207,7 @@ static void parport_attach(struct parport *port)
calibrate_port(&device);
- hrtimer_init(&device.timer, CLOCK_REALTIME, HRTIMER_MODE_ABS);
- device.timer.function = hrtimer_event;
+ hrtimer_setup(&device.timer, hrtimer_event, CLOCK_REALTIME, HRTIMER_MODE_ABS);
hrtimer_start(&device.timer, next_intr_time(&device), HRTIMER_MODE_ABS);
return;
@@ -229,41 +230,9 @@ static struct parport_driver pps_gen_parport_driver = {
.name = KBUILD_MODNAME,
.match_port = parport_attach,
.detach = parport_detach,
- .devmodel = true,
};
-
-/* module staff */
-
-static int __init pps_gen_parport_init(void)
-{
- int ret;
-
- pr_info(DRVDESC "\n");
-
- if (send_delay > SEND_DELAY_MAX) {
- pr_err("delay value should be not greater"
- " then %d\n", SEND_DELAY_MAX);
- return -EINVAL;
- }
-
- ret = parport_register_driver(&pps_gen_parport_driver);
- if (ret) {
- pr_err("unable to register with parport\n");
- return ret;
- }
-
- return 0;
-}
-
-static void __exit pps_gen_parport_exit(void)
-{
- parport_unregister_driver(&pps_gen_parport_driver);
- pr_info("hrtimer avg error is %ldns\n", hrtimer_error);
-}
-
-module_init(pps_gen_parport_init);
-module_exit(pps_gen_parport_exit);
+module_parport_driver(pps_gen_parport_driver);
MODULE_AUTHOR("Alexander Gordeev <lasaine@lvk.cs.msu.su>");
-MODULE_DESCRIPTION(DRVDESC);
+MODULE_DESCRIPTION("parallel port PPS signal generator");
MODULE_LICENSE("GPL");