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[PATCH] SGI IOC4: Detect IO card variant

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There are three different IO cards which an SGI IOC4 controller may find
itself on.  One of these variants does not bring out the IDE and serial
signals, so we need to disable attaching the corresponding IOC4 subdrivers
to such cards.

Cleans up message clutter emitted during device probing.

Signed-off-by: Brent Casavant <bcasavan@sgi.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
This commit is contained in:
Brent Casavant
2006-06-23 02:05:52 -07:00
committed by Linus Torvalds
parent 862f5f0133
commit f5befceb5c
4 changed files with 79 additions and 5 deletions
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9
drivers/serial/ioc4_serial.c
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@@ -2646,7 +2646,10 @@ static int ioc4_serial_remove_one(struct ioc4_driver_data *idd)
struct ioc4_port *port;
struct ioc4_soft *soft;
/* If serial driver did not attach, don't try to detach */
control = idd->idd_serial_data;
if (!control)
return 0;
for (port_num = 0; port_num < IOC4_NUM_SERIAL_PORTS; port_num++) {
for (port_type = UART_PORT_MIN;
@@ -2778,6 +2781,12 @@ ioc4_serial_attach_one(struct ioc4_driver_data *idd)
DPRINT_CONFIG(("%s (0x%p, 0x%p)\n", __FUNCTION__, idd->idd_pdev,
idd->idd_pci_id));
/* PCI-RT does not bring out serial connections.
* Do not attach to this particular IOC4.
*/
if (idd->idd_variant == IOC4_VARIANT_PCI_RT)
return 0;
/* request serial registers */
tmp_addr1 = idd->idd_bar0 + IOC4_SERIAL_OFFSET;