diff options
Diffstat (limited to 'drivers/pps/clients/pps_parport.c')
| -rw-r--r-- | drivers/pps/clients/pps_parport.c | 21 |
1 files changed, 18 insertions, 3 deletions
diff --git a/drivers/pps/clients/pps_parport.c b/drivers/pps/clients/pps_parport.c index 83797d89c30f..4db824f88d00 100644 --- a/drivers/pps/clients/pps_parport.c +++ b/drivers/pps/clients/pps_parport.c @@ -49,6 +49,7 @@ MODULE_PARM_DESC(clear_wait, " zero turns clear edge capture off entirely"); module_param(clear_wait, uint, 0); +static DEFINE_IDA(pps_client_index); /* internal per port structure */ struct pps_client_pp { @@ -56,6 +57,7 @@ struct pps_client_pp { struct pps_device *pps; /* PPS device */ unsigned int cw; /* port clear timeout */ unsigned int cw_err; /* number of timeouts */ + int index; /* device number */ }; static inline int signal_is_set(struct parport *port) @@ -136,6 +138,8 @@ out_both: static void parport_attach(struct parport *port) { + struct pardev_cb pps_client_cb; + int index; struct pps_client_pp *device; struct pps_source_info info = { .name = KBUILD_MODNAME, @@ -154,8 +158,15 @@ static void parport_attach(struct parport *port) return; } - device->pardev = parport_register_device(port, KBUILD_MODNAME, - NULL, NULL, parport_irq, PARPORT_FLAG_EXCL, device); + index = ida_simple_get(&pps_client_index, 0, 0, GFP_KERNEL); + memset(&pps_client_cb, 0, sizeof(pps_client_cb)); + pps_client_cb.private = device; + pps_client_cb.irq_func = parport_irq; + pps_client_cb.flags = PARPORT_FLAG_EXCL; + device->pardev = parport_register_dev_model(port, + KBUILD_MODNAME, + &pps_client_cb, + index); if (!device->pardev) { pr_err("couldn't register with %s\n", port->name); goto err_free; @@ -176,6 +187,7 @@ static void parport_attach(struct parport *port) device->cw = clear_wait; port->ops->enable_irq(port); + device->index = index; pr_info("attached to %s\n", port->name); @@ -186,6 +198,7 @@ err_release_dev: err_unregister_dev: parport_unregister_device(device->pardev); err_free: + ida_simple_remove(&pps_client_index, index); kfree(device); } @@ -205,13 +218,15 @@ static void parport_detach(struct parport *port) pps_unregister_source(device->pps); parport_release(pardev); parport_unregister_device(pardev); + ida_simple_remove(&pps_client_index, device->index); kfree(device); } static struct parport_driver pps_parport_driver = { .name = KBUILD_MODNAME, - .attach = parport_attach, + .match_port = parport_attach, .detach = parport_detach, + .devmodel = true, }; /* module staff */ |