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Commit 67c99296 authored by Mark Brown's avatar Mark Brown
Browse files

mfd: arizona: Disable interrupts during suspend 



We aren't able to handle interrupts after the device has suspended since
we need to runtime resume it in order to do so but the controller may not
be available any more. Handle this in the same way as we handle a similar
issue on resume.

Reported-by: default avatarChuansheng Liu <chuansheng.liu@intel.com>
Signed-off-by: default avatarMark Brown <broonie@opensource.wolfsonmicro.com>
parent 1d017b6b

drivers/mfd/arizona-core.c

+22 −1
Original line number Diff line number Diff line
@@ -409,6 +409,26 @@ static int arizona_runtime_suspend(struct device *dev) 
#endif



#ifdef CONFIG_PM_SLEEP

static int arizona_suspend(struct device *dev)

{

	struct arizona *arizona = dev_get_drvdata(dev);



	dev_dbg(arizona->dev, "Suspend, disabling IRQ\n");

	disable_irq(arizona->irq);



	return 0;

}



static int arizona_suspend_late(struct device *dev)

{

	struct arizona *arizona = dev_get_drvdata(dev);



	dev_dbg(arizona->dev, "Late suspend, reenabling IRQ\n");

	enable_irq(arizona->irq);



	return 0;

}



static int arizona_resume_noirq(struct device *dev)

{

	struct arizona *arizona = dev_get_drvdata(dev);
@@ -434,8 +454,9 @@ const struct dev_pm_ops arizona_pm_ops = { 
	SET_RUNTIME_PM_OPS(arizona_runtime_suspend,

			   arizona_runtime_resume,

			   NULL)

	SET_SYSTEM_SLEEP_PM_OPS(NULL, arizona_resume)

	SET_SYSTEM_SLEEP_PM_OPS(arizona_suspend, arizona_resume)

#ifdef CONFIG_PM_SLEEP

	.suspend_late = arizona_suspend_late,

	.resume_noirq = arizona_resume_noirq,

#endif

};