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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>
This commit is contained in:
Alexandre Belloni 2015-08-11 11:12:47 +02:00 committed by Sebastian Reichel
parent eacd8d09db
commit 6e64180a7c
2 changed files with 15 additions and 4 deletions
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2
drivers/power/reset/Kconfig
View File

@ -23,7 +23,7 @@ config POWER_RESET_AT91_POWEROFF
SoCs SoCs
config POWER_RESET_AT91_RESET config POWER_RESET_AT91_RESET
bool "Atmel AT91 reset driver" tristate "Atmel AT91 reset driver"
depends on ARCH_AT91 depends on ARCH_AT91
default SOC_AT91SAM9 || SOC_SAMA5 default SOC_AT91SAM9 || SOC_SAMA5
help help

17
drivers/power/reset/at91-reset.c
View File

@ -178,7 +178,7 @@ static struct notifier_block at91_restart_nb = {
.priority = 192, .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; const struct of_device_id *match;
struct device_node *np; struct device_node *np;
@ -214,6 +214,13 @@ static int at91_reset_probe(struct platform_device *pdev)
return 0; 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[] = { static const struct platform_device_id at91_reset_plat_match[] = {
{ "at91-sam9260-reset", (unsigned long)at91sam9260_restart }, { "at91-sam9260-reset", (unsigned long)at91sam9260_restart },
{ "at91-sam9g45-reset", (unsigned long)at91sam9g45_restart }, { "at91-sam9g45-reset", (unsigned long)at91sam9g45_restart },
@ -221,11 +228,15 @@ static const struct platform_device_id at91_reset_plat_match[] = {
}; };
static struct platform_driver at91_reset_driver = { static struct platform_driver at91_reset_driver = {
.probe = at91_reset_probe, .remove = __exit_p(at91_reset_remove),
.driver = { .driver = {
.name = "at91-reset", .name = "at91-reset",
.of_match_table = at91_reset_of_match, .of_match_table = at91_reset_of_match,
}, },
.id_table = at91_reset_plat_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");