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Date: Wed, 18 Apr 2007 12:07:25 +0200 (CEST)
From: Jiri Slaby <jirislaby@...il.com>
To: Andrew Morton <akpm@...ux-foundation.org>
Cc: <linux-kernel@...r.kernel.org>
Subject: [PATCH 9/11] Char: cyclades, tty_register_device separately for each device
cyclades, tty_register_device separately for each device
Do not register all tty devices at the init time, delay it for the time
until some device is found.
Signed-off-by: Jiri Slaby <jirislaby@...il.com>
---
commit ad4f792b92f8e6350a62b61442bb6812969bfd73
tree de126dc99bbafbb15d3fc7c96211e9648f4de354
parent 8c76c370ee1c1efa31f64807162c15922fae1e3a
author Jiri Slaby <jirislaby@...il.com> Thu, 05 Apr 2007 17:44:51 +0200
committer Jiri Slaby <jirislaby@...il.com> Tue, 10 Apr 2007 10:48:07 +0200
drivers/char/cyclades.c | 20 +++++++++++++++++++-
1 files changed, 19 insertions(+), 1 deletions(-)
diff --git a/drivers/char/cyclades.c b/drivers/char/cyclades.c
index 22f8ec4..0c2c120 100644
--- a/drivers/char/cyclades.c
+++ b/drivers/char/cyclades.c
@@ -4841,6 +4841,9 @@ static int __init cy_detect_isa(void)
cy_isa_irq);
printk("%d channels starting from port %d.\n",
cy_isa_nchan, cy_next_channel);
+ for (j = cy_next_channel;
+ j < cy_next_channel + cy_isa_nchan; j++)
+ tty_register_device(cy_serial_driver, j, NULL);
cy_next_channel += cy_isa_nchan;
}
return nboard;
@@ -4948,6 +4951,8 @@ static int __devinit cy_init_Ze(unsigned long cy_pci_phys0,
printk("%d channels starting from port %d.\n",
cy_pci_nchan, cy_next_channel);
+ for (j = cy_next_channel; j < cy_next_channel + cy_pci_nchan; j++)
+ tty_register_device(cy_serial_driver, j, &pdev->dev);
cy_next_channel += cy_pci_nchan;
return 0;
@@ -5115,6 +5120,9 @@ static int __devinit cy_pci_probe(struct pci_dev *pdev,
(int)cy_pci_irq);
printk("%d channels starting from port %d.\n",
cy_pci_nchan, cy_next_channel);
+ for (j = cy_next_channel;
+ j < cy_next_channel + cy_pci_nchan; j++)
+ tty_register_device(cy_serial_driver, j, &pdev->dev);
cy_next_channel += cy_pci_nchan;
} else if (device_id == PCI_DEVICE_ID_CYCLOM_Z_Lo) {
@@ -5282,6 +5290,9 @@ static int __devinit cy_pci_probe(struct pci_dev *pdev,
printk("%d channels starting from port %d.\n",
cy_pci_nchan, cy_next_channel);
+ for (j = cy_next_channel;
+ j < cy_next_channel + cy_pci_nchan; j++)
+ tty_register_device(cy_serial_driver, j, &pdev->dev);
cy_next_channel += cy_pci_nchan;
}
@@ -5346,6 +5357,9 @@ static void __devexit cy_pci_release(struct pci_dev *pdev)
cy_port[i].line = -1;
cy_port[i].magic = -1;
}
+ for (i = cinfo->first_line; i < cinfo->first_line +
+ cinfo->nports; i++)
+ tty_unregister_device(cy_serial_driver, i);
#endif
}
@@ -5479,7 +5493,7 @@ static int __init cy_init(void)
cy_serial_driver->init_termios = tty_std_termios;
cy_serial_driver->init_termios.c_cflag =
B9600 | CS8 | CREAD | HUPCL | CLOCAL;
- cy_serial_driver->flags = TTY_DRIVER_REAL_RAW;
+ cy_serial_driver->flags = TTY_DRIVER_REAL_RAW | TTY_DRIVER_DYNAMIC_DEV;
tty_set_operations(cy_serial_driver, &cy_ops);
retval = tty_register_driver(cy_serial_driver);
@@ -5555,6 +5569,10 @@ static void __exit cy_cleanup_module(void)
#endif /* CONFIG_CYZ_INTR */
)
free_irq(cy_card[i].irq, &cy_card[i]);
+ for (e1 = cy_card[i].first_line;
+ e1 < cy_card[i].first_line +
+ cy_card[i].nports; e1++)
+ tty_unregister_device(cy_serial_driver, e1);
}
}
} /* cy_cleanup_module */
-
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