Messages in this thread Patch in this message | | | From | Andy Shevchenko <> | Subject | [PATCH v1 4/5] serial: 8250_exar: Use 8250 PCI library to map and assign resources | Date | Wed, 14 Feb 2024 19:09:37 +0200 |
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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> --- drivers/tty/serial/8250/8250_exar.c | 10 +++++----- drivers/tty/serial/8250/Kconfig | 1 + 2 files changed, 6 insertions(+), 5 deletions(-)
diff --git a/drivers/tty/serial/8250/8250_exar.c b/drivers/tty/serial/8250/8250_exar.c index fa750c586b1f..3913b8a99161 100644 --- a/drivers/tty/serial/8250/8250_exar.c +++ b/drivers/tty/serial/8250/8250_exar.c @@ -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 diff --git a/drivers/tty/serial/8250/Kconfig b/drivers/tty/serial/8250/Kconfig index a5eb2657f279..52d8589f1dbe 100644 --- a/drivers/tty/serial/8250/Kconfig +++ b/drivers/tty/serial/8250/Kconfig @@ -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 -- 2.43.0.rc1.1.gbec44491f096
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