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Wed, 14 Feb 2024 19:10:48 +0200 (EET) From: Andy Shevchenko To: linux-kernel@vger.kernel.org, linux-serial@vger.kernel.org Cc: Greg Kroah-Hartman , Jiri Slaby , 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 Message-ID: <20240214171044.3551032-5-andriy.shevchenko@linux.intel.com> X-Mailer: git-send-email 2.43.0.rc1.1.gbec44491f096 In-Reply-To: <20240214171044.3551032-1-andriy.shevchenko@linux.intel.com> References: <20240214171044.3551032-1-andriy.shevchenko@linux.intel.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-getmail-retrieved-from-mailbox: INBOX X-GMAIL-THRID: 1790904560918650007 X-GMAIL-MSGID: 1790904560918650007 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 --- 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 #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