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drivers/tty/serial: make serial/atmel_serial.c explicitly non-modular

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The Kconfig currently controlling compilation of this code is:

drivers/tty/serial/Kconfig:config SERIAL_ATMEL
drivers/tty/serial/Kconfig:     bool "AT91 / AT32 on-chip serial port support"

...meaning that it currently is not being built as a module by anyone.

Lets remove the modular code that is essentially orphaned, so that
when reading the driver there is no doubt it is builtin-only.

We explicitly disallow a driver unbind, since that doesn't have a
sensible use case anyway, and it allows us to drop the ".remove"
code for non-modular drivers.

Since module_init translates to device_initcall in the non-modular
case, the init ordering remains unchanged with this commit.

We don't replace module.h with init.h since the file already has that.

We also delete the MODULE_LICENSE tag etc. since all that information
is already contained at the top of the file in the comments.

Cc: Nicolas Ferre <nicolas.ferre@atmel.com>
Cc: Jiri Slaby <jslaby@suse.com>
Cc: linux-serial@vger.kernel.org
Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Paul Gortmaker 2015-10-18 18:21:16 -04:00 committed by Greg Kroah-Hartman
parent cc56884937
commit c39dfebc77
1 changed files with 4 additions and 41 deletions
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45
drivers/tty/serial/atmel_serial.c
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@ -22,7 +22,6 @@
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
* *
*/ */
#include <linux/module.h>
#include <linux/tty.h> #include <linux/tty.h>
#include <linux/ioport.h> #include <linux/ioport.h>
#include <linux/slab.h> #include <linux/slab.h>
@ -2762,37 +2761,14 @@ err:
return ret; return ret;
} }
static int atmel_serial_remove(struct platform_device *pdev)
{
struct uart_port *port = platform_get_drvdata(pdev);
struct atmel_uart_port *atmel_port = to_atmel_uart_port(port);
int ret = 0;
tasklet_kill(&atmel_port->tasklet);
device_init_wakeup(&pdev->dev, 0);
ret = uart_remove_one_port(&atmel_uart, port);
kfree(atmel_port->rx_ring.buf);
/* "port" is allocated statically, so we shouldn't free it */
clear_bit(port->line, atmel_ports_in_use);
clk_put(atmel_port->clk);
return ret;
}
static struct platform_driver atmel_serial_driver = { static struct platform_driver atmel_serial_driver = {
.probe = atmel_serial_probe, .probe = atmel_serial_probe,
.remove = atmel_serial_remove,
.suspend = atmel_serial_suspend, .suspend = atmel_serial_suspend,
.resume = atmel_serial_resume, .resume = atmel_serial_resume,
.driver = { .driver = {
.name = "atmel_usart", .name = "atmel_usart",
.of_match_table = of_match_ptr(atmel_serial_dt_ids), .of_match_table = of_match_ptr(atmel_serial_dt_ids),
.suppress_bind_attrs = true,
}, },
}; };
@ -2810,17 +2786,4 @@ static int __init atmel_serial_init(void)
return ret; return ret;
} }
device_initcall(atmel_serial_init);
static void __exit atmel_serial_exit(void)
{
platform_driver_unregister(&atmel_serial_driver);
uart_unregister_driver(&atmel_uart);
}
module_init(atmel_serial_init);
module_exit(atmel_serial_exit);
MODULE_AUTHOR("Rick Bronson");
MODULE_DESCRIPTION("Atmel AT91 / AT32 serial port driver");
MODULE_LICENSE("GPL");
MODULE_ALIAS("platform:atmel_usart");