power/reset: at91-reset: allow compiling as a module
It was not possible to compile at91-reset as a module. Implement .remove()
to allow it. Also switch to module_platform_driver_probe() as it is not
hotpluggable.
Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
Signed-off-by: Sebastian Reichel <sre@kernel.org>
diff --git a/drivers/power/reset/Kconfig b/drivers/power/reset/Kconfig
index 5a0189b..5cec1d9 100644
--- a/drivers/power/reset/Kconfig
+++ b/drivers/power/reset/Kconfig
@@ -23,7 +23,7 @@
SoCs
config POWER_RESET_AT91_RESET
- bool "Atmel AT91 reset driver"
+ tristate "Atmel AT91 reset driver"
depends on ARCH_AT91
default SOC_AT91SAM9 || SOC_SAMA5
help
diff --git a/drivers/power/reset/at91-reset.c b/drivers/power/reset/at91-reset.c
index 16e12bd..6374f5c 100644
--- a/drivers/power/reset/at91-reset.c
+++ b/drivers/power/reset/at91-reset.c
@@ -178,7 +178,7 @@
.priority = 192,
};
-static int at91_reset_probe(struct platform_device *pdev)
+static int __init at91_reset_probe(struct platform_device *pdev)
{
const struct of_device_id *match;
struct device_node *np;
@@ -214,6 +214,13 @@
return 0;
}
+static int __exit at91_reset_remove(struct platform_device *pdev)
+{
+ unregister_restart_handler(&at91_restart_nb);
+
+ return 0;
+}
+
static const struct platform_device_id at91_reset_plat_match[] = {
{ "at91-sam9260-reset", (unsigned long)at91sam9260_restart },
{ "at91-sam9g45-reset", (unsigned long)at91sam9g45_restart },
@@ -221,11 +228,15 @@
};
static struct platform_driver at91_reset_driver = {
- .probe = at91_reset_probe,
+ .remove = __exit_p(at91_reset_remove),
.driver = {
.name = "at91-reset",
.of_match_table = at91_reset_of_match,
},
.id_table = at91_reset_plat_match,
};
-module_platform_driver(at91_reset_driver);
+module_platform_driver_probe(at91_reset_driver, at91_reset_probe);
+
+MODULE_AUTHOR("Atmel Corporation");
+MODULE_DESCRIPTION("Reset driver for Atmel SoCs");
+MODULE_LICENSE("GPL v2");
