gpio-lynxpoint: Allow building as a module
Change CONFIG_GPIO_LYNXPOINT from bool to tristate so that the
gpio-lynxpoint driver can be built as a module.
Add the required glue: an exit function to unregister the driver, and
module information.
Signed-off-by: Jean Delvare <jdelvare@suse.de>
Cc: Mathias Nyman <mathias.nyman@linux.intel.com>
Cc: Linus Walleij <linus.walleij@linaro.org>
Acked-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
diff --git a/drivers/gpio/Kconfig b/drivers/gpio/Kconfig
index 0f04444..58d98dd 100644
--- a/drivers/gpio/Kconfig
+++ b/drivers/gpio/Kconfig
@@ -353,7 +353,7 @@
board computers.
config GPIO_LYNXPOINT
- bool "Intel Lynxpoint GPIO support"
+ tristate "Intel Lynxpoint GPIO support"
depends on ACPI && X86
select IRQ_DOMAIN
help
diff --git a/drivers/gpio/gpio-lynxpoint.c b/drivers/gpio/gpio-lynxpoint.c
index 89867ed..1a7443e 100644
--- a/drivers/gpio/gpio-lynxpoint.c
+++ b/drivers/gpio/gpio-lynxpoint.c
@@ -469,4 +469,15 @@
return platform_driver_register(&lp_gpio_driver);
}
+static void __exit lp_gpio_exit(void)
+{
+ platform_driver_unregister(&lp_gpio_driver);
+}
+
subsys_initcall(lp_gpio_init);
+module_exit(lp_gpio_exit);
+
+MODULE_AUTHOR("Mathias Nyman (Intel)");
+MODULE_DESCRIPTION("GPIO interface for Intel Lynxpoint");
+MODULE_LICENSE("GPL");
+MODULE_ALIAS("platform:lp_gpio");