linux-kernel - [PATCH 3.14 36/37] serial: 8250_pci: Add support for 12 port Exar boards

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Message-Id: <20151106192413.098362306@linuxfoundation.org>
Date:	Fri,  6 Nov 2015 11:24:51 -0800
From:	Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:	linux-kernel@...r.kernel.org
Cc:	Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
	stable@...r.kernel.org, Soeren Grunewald <soeren.grunewald@...y.de>
Subject: [PATCH 3.14 36/37] serial: 8250_pci: Add support for 12 port Exar boards

3.14-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Soeren Grunewald <soeren.grunewald@...y.de>

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@...y.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>

---
 drivers/tty/serial/8250/8250_pci.c |   21 +++++++++++++++++++++
 1 file changed, 21 insertions(+)

--- a/drivers/tty/serial/8250/8250_pci.c
+++ b/drivers/tty/serial/8250/8250_pci.c
@@ -1772,6 +1772,7 @@ pci_wch_ch353_setup(struct serial_privat
 #define PCI_DEVICE_ID_SUNIX_1999	0x1999
 
 
+#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 */
@@ -2270,6 +2271,13 @@ static struct pci_serial_quirk pci_seria
 	},
 	{
 		.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,
@@ -2715,6 +2723,7 @@ 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,
@@ -3385,6 +3394,14 @@ 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,
@@ -4763,6 +4780,10 @@ static struct pci_device_id serial_pci_t
 		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,


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