[3.16.y-ckt stable] Patch "serial: 8250_pci: Add support for 12 port Exar boards" has been added to staging queue

[Luis Henriques]

This is a note to let you know that I have just added a patch titled

    serial: 8250_pci: Add support for 12 port Exar boards

to the linux-3.16.y-queue branch of the 3.16.y-ckt extended stable tree 
which can be found at:

    http://kernel.ubuntu.com/git/ubuntu/linux.git/log/?h=linux-3.16.y-queue

This patch is scheduled to be released in version 3.16.7-ckt20.

If you, or anyone else, feels it should not be added to this tree, please 
reply to this email.

For more information about the 3.16.y-ckt tree, see
https://wiki.ubuntu.com/Kernel/Dev/ExtendedStable

Thanks.
-Luis

------

>From b106758303d1dd03115bde51d667fd78859aad7a Mon Sep 17 00:00:00 2001
From: Soeren Grunewald <soeren.grunewald at desy.de>
Date: Thu, 11 Jun 2015 09:25:04 +0200
Subject: serial: 8250_pci: Add support for 12 port Exar boards

commit be32c0cf0462c36f482b5ddcff1d8371be1e183c upstream.

The Exar XR17V358 can also be combined with a XR17V354 chip to act as a
single 12 port chip. This works the same way as the combining two XR17V358
chips. But the reported device id then is 0x4358.

Signed-off-by: Soeren Grunewald <soeren.grunewald at desy.de>
Signed-off-by: Greg Kroah-Hartman <gregkh at linuxfoundation.org>
Signed-off-by: Luis Henriques <luis.henriques at canonical.com>
---
 drivers/tty/serial/8250/8250_pci.c | 21 +++++++++++++++++++++
 1 file changed, 21 insertions(+)

diff --git a/drivers/tty/serial/8250/8250_pci.c b/drivers/tty/serial/8250/8250_pci.c
index f01eec579695..a264aa900dfd 100644
--- a/drivers/tty/serial/8250/8250_pci.c
+++ b/drivers/tty/serial/8250/8250_pci.c
@@ -1802,6 +1802,7 @@ pci_wch_ch353_setup(struct serial_private *priv,
 #define PCI_DEVICE_ID_PERICOM_PI7C9X7954	0x7954
 #define PCI_DEVICE_ID_PERICOM_PI7C9X7958	0x7958

+#define PCI_DEVICE_ID_EXAR_XR17V4358	0x4358
 #define PCI_DEVICE_ID_EXAR_XR17V8358	0x8358

 /* Unknown vendors/cards - this should not be in linux/pci_ids.h */
@@ -2285,6 +2286,13 @@ static struct pci_serial_quirk pci_serial_quirks[] __refdata = {
 	},
 	{
 		.vendor = PCI_VENDOR_ID_EXAR,
+		.device = PCI_DEVICE_ID_EXAR_XR17V4358,
+		.subvendor	= PCI_ANY_ID,
+		.subdevice	= PCI_ANY_ID,
+		.setup		= pci_xr17v35x_setup,
+	},
+	{
+		.vendor = PCI_VENDOR_ID_EXAR,
 		.device = PCI_DEVICE_ID_EXAR_XR17V8358,
 		.subvendor	= PCI_ANY_ID,
 		.subdevice	= PCI_ANY_ID,
@@ -2738,6 +2746,7 @@ enum pci_board_num_t {
 	pbn_exar_XR17V352,
 	pbn_exar_XR17V354,
 	pbn_exar_XR17V358,
+	pbn_exar_XR17V4358,
 	pbn_exar_XR17V8358,
 	pbn_exar_ibm_saturn,
 	pbn_pasemi_1682M,
@@ -3412,6 +3421,14 @@ static struct pciserial_board pci_boards[] = {
 		.reg_shift	= 0,
 		.first_offset	= 0,
 	},
+	[pbn_exar_XR17V4358] = {
+		.flags		= FL_BASE0,
+		.num_ports	= 12,
+		.base_baud	= 7812500,
+		.uart_offset	= 0x400,
+		.reg_shift	= 0,
+		.first_offset	= 0,
+	},
 	[pbn_exar_XR17V8358] = {
 		.flags		= FL_BASE0,
 		.num_ports	= 16,
@@ -4829,6 +4846,10 @@ static struct pci_device_id serial_pci_tbl[] = {
 		PCI_ANY_ID, PCI_ANY_ID,
 		0,
 		0, pbn_exar_XR17V358 },
+	{	PCI_VENDOR_ID_EXAR, PCI_DEVICE_ID_EXAR_XR17V4358,
+		PCI_ANY_ID, PCI_ANY_ID,
+		0,
+		0, pbn_exar_XR17V4358 },
 	{	PCI_VENDOR_ID_EXAR, PCI_DEVICE_ID_EXAR_XR17V8358,
 		PCI_ANY_ID, PCI_ANY_ID,
 		0,