Commit 14ee78d5 authored by Matthew Howell's avatar Matthew Howell Committed by Greg Kroah-Hartman
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serial: exar: Add support for Sealevel 7xxxC serial cards 



Add support for Sealevel 7xxxC serial cards.

This patch:
* Adds IDs to recognize 7xxxC cards from Sealevel Systems.
* Updates exar_pci_probe() to set nr_ports to last two bytes of primary
  dev ID for these cards.

Signed-off-by: default avatarMatthew Howell <matthew.howell@sealevel.com>
Cc: stable <stable@kernel.org>
Link: https://lore.kernel.org/r/alpine.DEB.2.21.2301191440010.22558@tstest-VirtualBox


Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
parent 2cbafffb

drivers/tty/serial/8250/8250_exar.c

+14 −0
Original line number Diff line number Diff line
@@ -43,6 +43,12 @@ 
#define PCI_DEVICE_ID_EXAR_XR17V4358		0x4358

#define PCI_DEVICE_ID_EXAR_XR17V8358		0x8358



#define PCI_DEVICE_ID_SEALEVEL_710xC		0x1001

#define PCI_DEVICE_ID_SEALEVEL_720xC		0x1002

#define PCI_DEVICE_ID_SEALEVEL_740xC		0x1004

#define PCI_DEVICE_ID_SEALEVEL_780xC		0x1008

#define PCI_DEVICE_ID_SEALEVEL_716xC		0x1010



#define UART_EXAR_INT0		0x80

#define UART_EXAR_8XMODE	0x88	/* 8X sampling rate select */

#define UART_EXAR_SLEEP		0x8b	/* Sleep mode */
@@ -638,6 +644,8 @@ exar_pci_probe(struct pci_dev *pcidev, const struct pci_device_id *ent) 
		nr_ports = BIT(((pcidev->device & 0x38) >> 3) - 1);

	else if (board->num_ports)

		nr_ports = board->num_ports;

	else if (pcidev->vendor == PCI_VENDOR_ID_SEALEVEL)

		nr_ports = pcidev->device & 0xff;

	else

		nr_ports = pcidev->device & 0x0f;
@@ -864,6 +872,12 @@ static const struct pci_device_id exar_pci_tbl[] = { 
	EXAR_DEVICE(COMMTECH, 4224PCI335, pbn_fastcom335_4),

	EXAR_DEVICE(COMMTECH, 2324PCI335, pbn_fastcom335_4),

	EXAR_DEVICE(COMMTECH, 2328PCI335, pbn_fastcom335_8),



	EXAR_DEVICE(SEALEVEL, 710xC, pbn_exar_XR17V35x),

	EXAR_DEVICE(SEALEVEL, 720xC, pbn_exar_XR17V35x),

	EXAR_DEVICE(SEALEVEL, 740xC, pbn_exar_XR17V35x),

	EXAR_DEVICE(SEALEVEL, 780xC, pbn_exar_XR17V35x),

	EXAR_DEVICE(SEALEVEL, 716xC, pbn_exar_XR17V35x),

	{ 0, }

};

MODULE_DEVICE_TABLE(pci, exar_pci_tbl);