[PATCH 2/21] Char: cyclades, switch to pci probing

Jiri Slaby
2007-04-29T20:54:07Z

cyclades, switch to pci probing

Signed-off-by: Jiri Slaby <jirislaby@gmail.com>

---
commit c5c2e708444ec573636733bb28ecd66d1753aa8f
tree 219a4d452e3e208c27031ed29506ee108feef833
parent 167ae9073fef562913c9d68d32da883da5444fbc
author Jiri Slaby <jirislaby@gmail.com> Tue, 24 Apr 2007 23:47:07 +0200
committer Jiri Slaby <jirislaby@gmail.com> Fri, 27 Apr 2007 13:14:56 +0200

drivers/char/cyclades.c | 65 ++++++++++++-----------------------------------
1 files changed, 17 insertions(+), 48 deletions(-)

diff --git a/drivers/char/cyclades.c b/drivers/char/cyclades.c
index d3b42e8..249f443 100644
--- a/drivers/char/cyclades.c
+++ b/drivers/char/cyclades.c
@@ -5297,46 +5297,9 @@ static int __devinit cy_pci_probe(struct pci_dev *pdev,

return 0;
}
-#endif

-/*
- * ---------------------------------------------------------------------
- * cy_detect_pci() - Test PCI bus presence and Cyclom-Ye/PCI.
- * sets global variables and return the number of PCI boards found.
- * ---------------------------------------------------------------------
- */
-static int __init cy_detect_pci(void)
+static void __devexit cy_pci_remove(struct pci_dev *pdev)
{
-#ifdef CONFIG_PCI
- struct pci_dev *pdev = NULL;
- unsigned int i, device_id, dev_index = 0;
-
- for (i = 0; i < NR_CARDS; i++) {
- /* look for a Cyclades card by vendor and device id */
- while ((device_id = cy_pci_dev_id[dev_index].device) != 0) {
- if ((pdev = pci_get_device(PCI_VENDOR_ID_CYCLADES,
- device_id, pdev)) == NULL) {
- dev_index++; /* try next device id */
- } else {
- break; /* found a board */
- }
- }
-
- if (device_id == 0)
- break;
-
- i -= !!cy_pci_probe(pdev, &cy_pci_dev_id[dev_index]);
- }
-
- return i;
-#else
- return 0;
-#endif /* ifdef CONFIG_PCI */
-} /* cy_detect_pci */
-
-static void __devexit cy_pci_release(struct pci_dev *pdev)
-{
-#ifdef CONFIG_PCI
struct cyclades_card *cinfo = pci_get_drvdata(pdev);
unsigned int i;

@@ -5370,9 +5333,16 @@ static void __devexit cy_pci_release(struct pci_dev *pdev)
for (i = cinfo->first_line; i < cinfo->first_line +
cinfo->nports; i++)
tty_unregister_device(cy_serial_driver, i);
-#endif
}

+static struct pci_driver cy_pci_driver = {
+ .name = "cyclades",
+ .id_table = cy_pci_dev_id,
+ .probe = cy_pci_probe,
+ .remove = __devexit_p(cy_pci_remove)
+};
+#endif
+
/*
* This routine prints out the appropriate serial driver version number
* and identifies which options were configured into this driver.
@@ -5533,13 +5503,12 @@ static int __init cy_init(void)
/* look for isa boards */
nboards = cy_detect_isa();

+#ifdef CONFIG_PCI
/* look for pci boards */
- nboards += cy_detect_pci();
-
- if (nboards == 0) {
- retval = -ENODEV;
+ retval = pci_register_driver(&cy_pci_driver);
+ if (retval && !nboards)
goto err_unr;
- }
+#endif

return 0;
err_unr:
@@ -5564,12 +5533,12 @@ static void __exit cy_cleanup_module(void)

put_tty_driver(cy_serial_driver);

+#ifdef CONFIG_PCI
+ pci_unregister_driver(&cy_pci_driver);
+#endif
+
for (i = 0; i < NR_CARDS; i++) {
if (cy_card[i].base_addr) {
- if (cy_card[i].pdev) {
- cy_pci_release(cy_card[i].pdev);
- continue;
- }
/* clear interrupt */
cy_writeb(cy_card[i].base_addr + Cy_ClrIntr, 0);
iounmap(cy_card[i].base_addr);