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authorVladimir Murzin <vladimir.murzin@arm.com>2016-06-07 18:02:37 +0300
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2016-06-26 00:01:57 +0300
commitce87122911f8db59d3c2bc355c694c7a38940804 (patch)
tree46cc029988f4fa8de6acf0328345a4114aa5c411 /drivers/tty
parentc2c1659b4f8f9e19fe82a4fd06cca4b3d59090ce (diff)
downloadlinux-ce87122911f8db59d3c2bc355c694c7a38940804.tar.xz
serial: mps2-uart: make driver explicitly non-modular
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 arch_initcall instead of module_init and remove module_exit. 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@windriver.com> Signed-off-by: Vladimir Murzin <vladimir.murzin@arm.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/tty')
-rw-r--r--drivers/tty/serial/mps2-uart.c29
1 files changed, 4 insertions, 25 deletions
diff --git a/drivers/tty/serial/mps2-uart.c b/drivers/tty/serial/mps2-uart.c
index da9e27d3c263..492ec4b375a0 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@arm.com>
@@ -17,7 +19,6 @@
#include <linux/console.h>
#include <linux/io.h>
#include <linux/kernel.h>
-#include <linux/module.h>
#include <linux/of_device.h>
#include <linux/of.h>
#include <linux/platform_device.h>
@@ -569,30 +570,20 @@ 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 +601,4 @@ 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@arm.com>");
-MODULE_DESCRIPTION("MPS2 UART driver");
-MODULE_LICENSE("GPL v2");
-MODULE_ALIAS("platform:" DRIVER_NAME);
+arch_initcall(mps2_uart_init);