[PATCH 1/3] serial: pxa: make it explicitly non-modular

Paul Gortmaker
2016-06-20T23:00:12Z

drivers/tty/serial/Kconfig:config SERIAL_PXA
drivers/tty/serial/Kconfig: bool "PXA 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.

Also note that MODULE_DEVICE_TABLE and MODULE_ALIAS are both a
no-op for non-modular builds.

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

Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: Jiri Slaby <jslaby@suse.com>
Cc: linux-serial@vger.kernel.org
Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
---
drivers/tty/serial/pxa.c | 31 +++----------------------------
1 file changed, 3 insertions(+), 28 deletions(-)

diff --git a/drivers/tty/serial/pxa.c b/drivers/tty/serial/pxa.c
index 41eab75ba2af..29c2309b4b28 100644
--- a/drivers/tty/serial/pxa.c
+++ b/drivers/tty/serial/pxa.c
@@ -27,7 +27,6 @@
#define SUPPORT_SYSRQ
#endif

-#include <linux/module.h>
#include <linux/ioport.h>
#include <linux/init.h>
#include <linux/console.h>
@@ -829,7 +829,6 @@ static const struct of_device_id serial_pxa_dt_ids[] = {
{ .compatible = "mrvl,mmp-uart", },
{}
};
-MODULE_DEVICE_TABLE(of, serial_pxa_dt_ids);

static int serial_pxa_probe_dt(struct platform_device *pdev,
struct uart_pxa_port *sport)
@@ -914,28 +913,15 @@ static int serial_pxa_probe(struct platform_device *dev)
return ret;
}

-static int serial_pxa_remove(struct platform_device *dev)
-{
- struct uart_pxa_port *sport = platform_get_drvdata(dev);
-
- uart_remove_one_port(&serial_pxa_reg, &sport->port);
-
- clk_unprepare(sport->clk);
- clk_put(sport->clk);
- kfree(sport);
-
- return 0;
-}
-
static struct platform_driver serial_pxa_driver = {
.probe = serial_pxa_probe,
- .remove = serial_pxa_remove,

.driver = {
.name = "pxa2xx-uart",
#ifdef CONFIG_PM
.pm = &serial_pxa_pm_ops,
#endif
+ .suppress_bind_attrs = true,
.of_match_table = serial_pxa_dt_ids,
},
};
@@ -954,15 +940,4 @@ static int __init serial_pxa_init(void)

return ret;
}
-
-static void __exit serial_pxa_exit(void)
-{
- platform_driver_unregister(&serial_pxa_driver);
- uart_unregister_driver(&serial_pxa_reg);
-}
-
-module_init(serial_pxa_init);
-module_exit(serial_pxa_exit);
-
-MODULE_LICENSE("GPL");
-MODULE_ALIAS("platform:pxa2xx-uart");
+device_initcall(serial_pxa_init);
--
2.8.4