From: "Ilpo Järvinen" <ilpo.jarvinen@linux.intel.com>
To: Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
Jiri Slaby <jirislaby@kernel.org>,
linux-kernel@vger.kernel.org, linux-serial@vger.kernel.org
Cc: "Ilpo Järvinen" <ilpo.jarvinen@linux.intel.com>
Subject: [PATCH 1/2] serial: 8250_mid: Remove 8250_pci usage
Date: Fri, 15 Sep 2023 12:43:35 +0300 [thread overview]
Message-ID: <20230915094336.13278-1-ilpo.jarvinen@linux.intel.com> (raw)
8250_mid uses FL_*BASE* from linux/8250_pci.h and nothing else. The
code can be simplified by directly defining BARs within the driver
instead.
Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
---
drivers/tty/serial/8250/8250_mid.c | 18 +++++++-----------
1 file changed, 7 insertions(+), 11 deletions(-)
diff --git a/drivers/tty/serial/8250/8250_mid.c b/drivers/tty/serial/8250/8250_mid.c
index 2cc78a4bf7a1..8ec03863606e 100644
--- a/drivers/tty/serial/8250/8250_mid.c
+++ b/drivers/tty/serial/8250/8250_mid.c
@@ -12,7 +12,6 @@
#include <linux/rational.h>
#include <linux/dma/hsu.h>
-#include <linux/8250_pci.h>
#include "8250.h"
@@ -32,9 +31,9 @@
struct mid8250;
struct mid8250_board {
- unsigned int flags;
unsigned long freq;
unsigned int base_baud;
+ unsigned int bar;
int (*setup)(struct mid8250 *, struct uart_port *p);
void (*exit)(struct mid8250 *);
};
@@ -169,7 +168,6 @@ static int dnv_setup(struct mid8250 *mid, struct uart_port *p)
{
struct hsu_dma_chip *chip = &mid->dma_chip;
struct pci_dev *pdev = to_pci_dev(p->dev);
- unsigned int bar = FL_GET_BASE(mid->board->flags);
int ret;
pci_set_master(pdev);
@@ -183,7 +181,7 @@ static int dnv_setup(struct mid8250 *mid, struct uart_port *p)
chip->dev = &pdev->dev;
chip->irq = pci_irq_vector(pdev, 0);
chip->regs = p->membase;
- chip->length = pci_resource_len(pdev, bar);
+ chip->length = pci_resource_len(pdev, mid->board->bar);
chip->offset = DNV_DMA_CHAN_OFFSET;
/* Falling back to PIO mode if DMA probing fails */
@@ -291,7 +289,6 @@ static int mid8250_probe(struct pci_dev *pdev, const struct pci_device_id *id)
{
struct uart_8250_port uart;
struct mid8250 *mid;
- unsigned int bar;
int ret;
ret = pcim_enable_device(pdev);
@@ -303,7 +300,6 @@ static int mid8250_probe(struct pci_dev *pdev, const struct pci_device_id *id)
return -ENOMEM;
mid->board = (struct mid8250_board *)id->driver_data;
- bar = FL_GET_BASE(mid->board->flags);
memset(&uart, 0, sizeof(struct uart_8250_port));
@@ -316,8 +312,8 @@ static int mid8250_probe(struct pci_dev *pdev, const struct pci_device_id *id)
uart.port.flags = UPF_SHARE_IRQ | UPF_FIXED_PORT | UPF_FIXED_TYPE;
uart.port.set_termios = mid8250_set_termios;
- uart.port.mapbase = pci_resource_start(pdev, bar);
- uart.port.membase = pcim_iomap(pdev, bar, 0);
+ uart.port.mapbase = pci_resource_start(pdev, mid->board->bar);
+ uart.port.membase = pcim_iomap(pdev, mid->board->bar, 0);
if (!uart.port.membase)
return -ENOMEM;
@@ -353,25 +349,25 @@ static void mid8250_remove(struct pci_dev *pdev)
}
static const struct mid8250_board pnw_board = {
- .flags = FL_BASE0,
.freq = 50000000,
.base_baud = 115200,
+ .bar = 0,
.setup = pnw_setup,
.exit = pnw_exit,
};
static const struct mid8250_board tng_board = {
- .flags = FL_BASE0,
.freq = 38400000,
.base_baud = 1843200,
+ .bar = 0,
.setup = tng_setup,
.exit = tng_exit,
};
static const struct mid8250_board dnv_board = {
- .flags = FL_BASE1,
.freq = 133333333,
.base_baud = 115200,
+ .bar = 1,
.setup = dnv_setup,
.exit = dnv_exit,
};
--
2.30.2
next reply other threads:[~2023-09-15 9:46 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-09-15 9:43 Ilpo Järvinen [this message]
2023-09-15 9:43 ` [PATCH 2/2] tty: serial: 8250_exar: Does not use anything from 8250_pci Ilpo Järvinen
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