@@ -15,7 +15,7 @@ config POWER_RESET_AS3722
This driver supports turning off board via a ams AS3722 power-off.
config POWER_RESET_AT91_POWEROFF
- bool "Atmel AT91 poweroff driver"
+ tristate "Atmel AT91 poweroff driver"
depends on ARCH_AT91
default SOC_AT91SAM9 || SOC_SAMA5
help
@@ -119,7 +119,7 @@ static void at91_poweroff_dt_set_wakeup_mode(struct platform_device *pdev)
writel(wakeup_mode | mode, at91_shdwc_base + AT91_SHDW_MR);
}
-static int at91_poweroff_probe(struct platform_device *pdev)
+static int __init at91_poweroff_probe(struct platform_device *pdev)
{
struct resource *res;
@@ -140,6 +140,14 @@ static int at91_poweroff_probe(struct platform_device *pdev)
return 0;
}
+static int __exit at91_poweroff_remove(struct platform_device *pdev)
+{
+ if (pm_power_off == at91_poweroff)
+ pm_power_off = NULL;
+
+ return 0;
+}
+
static const struct of_device_id at91_poweroff_of_match[] = {
{ .compatible = "atmel,at91sam9260-shdwc", },
{ .compatible = "atmel,at91sam9rl-shdwc", },
@@ -148,10 +156,14 @@ static const struct of_device_id at91_poweroff_of_match[] = {
};
static struct platform_driver at91_poweroff_driver = {
- .probe = at91_poweroff_probe,
+ .remove = __exit_p(at91_poweroff_remove),
.driver = {
.name = "at91-poweroff",
.of_match_table = at91_poweroff_of_match,
},
};
-module_platform_driver(at91_poweroff_driver);
+module_platform_driver_probe(at91_poweroff_driver, at91_poweroff_probe);
+
+MODULE_AUTHOR("Atmel Corporation");
+MODULE_DESCRIPTION("Shutdown driver for Atmel SoCs");
+MODULE_LICENSE("GPL v2");
It was not possible to compile at91-poweroff 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> --- drivers/power/reset/Kconfig | 2 +- drivers/power/reset/at91-poweroff.c | 18 +++++++++++++++--- 2 files changed, 16 insertions(+), 4 deletions(-)