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8250_pci: add support for netmos 9835 IBM devices

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Most of netmos 9835 hardware is handled by parport-serial.  IBM introduces
a device which doesn't have any parallel ports and have screwed subdevice
PCI id (not corresponding to port numbers).

Handle this device (9710:9835 1014:0299) properly.

Signed-off-by: Jiri Slaby <jirislaby@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Alan Cox <alan@redhat.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Jiri Slaby 2009-01-15 13:30:34 +00:00 committed by Linus Torvalds
parent c0253eec2a
commit 25cf9bc1fc
1 changed files with 8 additions and 0 deletions
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8
drivers/serial/8250_pci.c
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@ -602,6 +602,10 @@ static int pci_netmos_init(struct pci_dev *dev)
/* subdevice 0x00PS means <P> parallel, <S> serial */
unsigned int num_serial = dev->subsystem_device & 0xf;
if (dev->subsystem_vendor == PCI_VENDOR_ID_IBM &&
dev->subsystem_device == 0x0299)
return 0;
if (num_serial == 0)
return -ENODEV;
return num_serial;
@ -3096,6 +3100,10 @@ static struct pci_device_id serial_pci_tbl[] = {
0,
pbn_b0_8_115200 },
{ PCI_VENDOR_ID_NETMOS, PCI_DEVICE_ID_NETMOS_9835,
PCI_VENDOR_ID_IBM, 0x0299,
0, 0, pbn_b0_bt_2_115200 },
/*
* These entries match devices with class COMMUNICATION_SERIAL,
* COMMUNICATION_MODEM or COMMUNICATION_MULTISERIAL