power/reset: at91-poweroff: allow compiling as a module
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> Signed-off-by: Sebastian Reichel <sre@kernel.org>
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@ -15,7 +15,7 @@ config POWER_RESET_AS3722
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This driver supports turning off board via a ams AS3722 power-off.
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config POWER_RESET_AT91_POWEROFF
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bool "Atmel AT91 poweroff driver"
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tristate "Atmel AT91 poweroff driver"
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depends on ARCH_AT91
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default SOC_AT91SAM9 || SOC_SAMA5
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help
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@ -119,7 +119,7 @@ static void at91_poweroff_dt_set_wakeup_mode(struct platform_device *pdev)
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writel(wakeup_mode | mode, at91_shdwc_base + AT91_SHDW_MR);
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}
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static int at91_poweroff_probe(struct platform_device *pdev)
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static int __init at91_poweroff_probe(struct platform_device *pdev)
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{
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struct resource *res;
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@ -140,6 +140,14 @@ static int at91_poweroff_probe(struct platform_device *pdev)
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return 0;
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}
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static int __exit at91_poweroff_remove(struct platform_device *pdev)
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{
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if (pm_power_off == at91_poweroff)
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pm_power_off = NULL;
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return 0;
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}
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static const struct of_device_id at91_poweroff_of_match[] = {
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{ .compatible = "atmel,at91sam9260-shdwc", },
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{ .compatible = "atmel,at91sam9rl-shdwc", },
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@ -148,10 +156,14 @@ static const struct of_device_id at91_poweroff_of_match[] = {
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};
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static struct platform_driver at91_poweroff_driver = {
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.probe = at91_poweroff_probe,
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.remove = __exit_p(at91_poweroff_remove),
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.driver = {
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.name = "at91-poweroff",
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.of_match_table = at91_poweroff_of_match,
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},
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};
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module_platform_driver(at91_poweroff_driver);
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module_platform_driver_probe(at91_poweroff_driver, at91_poweroff_probe);
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MODULE_AUTHOR("Atmel Corporation");
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MODULE_DESCRIPTION("Shutdown driver for Atmel SoCs");
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MODULE_LICENSE("GPL v2");
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