Kernel/linux-stable
1
0
Fork 0
mirror of https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git synced 2025-01-06 05:06:29 +00:00
Code Issues Actions Packages Projects Releases Wiki Activity

serial: 8250_exar: Use 8250 PCI library to map and assign resources

Browse Source 
8250 PCI library provides a common code to map and assign resources.
Use it in order to deduplicate existing code and support IO port
variants.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Link: https://lore.kernel.org/r/20240219150627.2101198-7-andriy.shevchenko@linux.intel.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Andy Shevchenko 2024-02-19 17:05:02 +02:00 committed by Greg Kroah-Hartman
parent 82f9cefada
commit d813d90085
2 changed files with 7 additions and 5 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

11
drivers/tty/serial/8250/8250_exar.c
View File

@ -24,6 +24,7 @@
#include <asm/byteorder.h>
#include "8250.h"
#include "8250_pcilib.h"
#define PCI_DEVICE_ID_ACCESSIO_COM_2S 0x1052
#define PCI_DEVICE_ID_ACCESSIO_COM_4S 0x105d
@ -230,13 +231,12 @@ static int default_setup(struct exar8250 *priv, struct pci_dev *pcidev,
struct uart_8250_port *port)
{
const struct exar8250_board *board = priv->board;
unsigned int bar = 0;
unsigned char status;
int err;
port->port.iotype = UPIO_MEM;
port->port.mapbase = pci_resource_start(pcidev, bar) + offset;
port->port.membase = priv->virt + offset;
port->port.regshift = board->reg_shift;
err = serial8250_pci_setup_port(pcidev, port, 0, offset, board->reg_shift);
if (err)
return err;
/*
* XR17V35x UARTs have an extra divisor register, DLD that gets enabled
@ -941,6 +941,7 @@ static struct pci_driver exar_pci_driver = {
};
module_pci_driver(exar_pci_driver);
MODULE_IMPORT_NS(SERIAL_8250_PCI);
MODULE_LICENSE("GPL");
MODULE_DESCRIPTION("Exar Serial Driver");
MODULE_AUTHOR("Sudip Mukherjee <sudip.mukherjee@codethink.co.uk>");

1
drivers/tty/serial/8250/Kconfig
View File

@ -149,6 +149,7 @@ config SERIAL_8250_PCI
config SERIAL_8250_EXAR
tristate "8250/16550 Exar/Commtech PCI/PCIe device support"
depends on SERIAL_8250 && PCI
select SERIAL_8250_PCILIB
default SERIAL_8250
help
This builds support for XR17C1xx, XR17V3xx and some Commtech