linux-kernel - [PATCH 2/8] 8250_pci: add support for netmos 9835 IBM devices

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Date:	Thu, 15 Jan 2009 13:30:34 +0000
From:	Alan Cox <alan@...rguk.ukuu.org.uk>
To:	torvalds@...ux-foundation.org, linux-kernel@...r.kernel.org
Subject: [PATCH 2/8] 8250_pci: add support for netmos 9835 IBM devices

From: Jiri Slaby <jirislaby@...il.com>

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@...il.com>
Signed-off-by: Andrew Morton <akpm@...ux-foundation.org>
Signed-off-by: Alan Cox <alan@...hat.com>
---

 drivers/serial/8250_pci.c |    8 ++++++++
 1 files changed, 8 insertions(+), 0 deletions(-)


diff --git a/drivers/serial/8250_pci.c b/drivers/serial/8250_pci.c
index c088146..2a36712 100644
--- a/drivers/serial/8250_pci.c
+++ b/drivers/serial/8250_pci.c
@@ -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

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