The Kconfig currently controlling compilation of mps2-uart is:
config SERIAL_MPS2_UART
bool "MPS2 UART port"
depends on ARM || COMPILE_TEST
...meaning that it currently is not being built as a module by anyone.
Follow commit 89ebc2742769 ("drivers/tty: make serial/mvebu-uart.c
explicitly non-modular") as an example of moving modular code to
non-modular:
- remove the modular code that is essentially orphaned, so that
when reading the driver there is no doubt it is builtin-only.
- 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.
- use device_initcall instead of module_init to keep the init ordering
unchanged.
Also note that MODULE_DEVICE_TABLE is a no-op for non-modular code.
We also delete the MODULE_LICENSE tag etc. since all that information
was (or is now) contained at the top of the file in the comments.
Reported-by: Paul Gortmaker <paul.gortmaker@xxxxxxxxxxxxx>
Signed-off-by: Vladimir Murzin <vladimir.murzin@xxxxxxx>
---
Changelog:
v2 -> v3
- use device_initcall instead of arch_initcall
- include init.h explicitly
v1 -> v2
- make commit message more verbose
drivers/tty/serial/mps2-uart.c | 30 +++++-------------------------
1 file changed, 5 insertions(+), 25 deletions(-)
diff --git a/drivers/tty/serial/mps2-uart.c b/drivers/tty/serial/mps2-uart.c
index da9e27d..f3f43b1 100644
--- a/drivers/tty/serial/mps2-uart.c
+++ b/drivers/tty/serial/mps2-uart.c
@@ -1,4 +1,6 @@
/*
+ * MPS2 UART driver
+ *
* Copyright (C) 2015 ARM Limited
*
* Author: Vladimir Murzin <vladimir.murzin@xxxxxxx>
@@ -17,7 +19,7 @@
#include <linux/console.h>
#include <linux/io.h>
#include <linux/kernel.h>
-#include <linux/module.h>
+#include <linux/init.h>
#include <linux/of_device.h>
#include <linux/of.h>
#include <linux/platform_device.h>
@@ -569,30 +571,20 @@ static int mps2_serial_probe(struct platform_device *pdev)
return 0;
}
-static int mps2_serial_remove(struct platform_device *pdev)
-{
- struct mps2_uart_port *mps_port = platform_get_drvdata(pdev);
-
- uart_remove_one_port(&mps2_uart_driver, &mps_port->port);
-
- return 0;
-}
-
#ifdef CONFIG_OF
static const struct of_device_id mps2_match[] = {
{ .compatible = "arm,mps2-uart", },
{},
};
-MODULE_DEVICE_TABLE(of, mps2_match);
#endif
static struct platform_driver mps2_serial_driver = {
.probe = mps2_serial_probe,
- .remove = mps2_serial_remove,
.driver = {
.name = DRIVER_NAME,
.of_match_table = of_match_ptr(mps2_match),
+ .suppress_bind_attrs = true,
},
};
@@ -610,16 +602,4 @@ static int __init mps2_uart_init(void)
return ret;
}
-module_init(mps2_uart_init);
-
-static void __exit mps2_uart_exit(void)
-{
- platform_driver_unregister(&mps2_serial_driver);
- uart_unregister_driver(&mps2_uart_driver);
-}
-module_exit(mps2_uart_exit);
-
-MODULE_AUTHOR("Vladimir Murzin <vladimir.murzin@xxxxxxx>");
-MODULE_DESCRIPTION("MPS2 UART driver");
-MODULE_LICENSE("GPL v2");
-MODULE_ALIAS("platform:" DRIVER_NAME);
+device_initcall(mps2_uart_init);
--
1.7.9.5
--
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