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Unverified Commit 58f1c07d authored by oder_chiou@realtek.com's avatar oder_chiou@realtek.com Committed by Mark Brown
Browse files

ASoC: rt5514: Voice wakeup support. 



If the rt5514 Wake on Voice device is opened while suspended, it will
be able to wake up the system when a voice command is detected.
This patch also supports user-space policy to override wakeup behavior
by /sys/bus/spi/drivers/rt5514/spi2.0/power/wakeup.

Signed-off-by: default avatarChinyue Chen <chinyue@chromium.org>
Signed-off-by: default avatarOder Chiou <oder_chiou@realtek.com>
Signed-off-by: default avatarMark Brown <broonie@kernel.org>
parent c4a71ff7

sound/soc/codecs/rt5514-spi.c

+27 −0
Original line number Diff line number Diff line
@@ -456,9 +456,35 @@ static int rt5514_spi_probe(struct spi_device *spi) 
		return ret;

	}



	device_init_wakeup(&spi->dev, true);



	return 0;

}



static int rt5514_suspend(struct device *dev)

{

	int irq = to_spi_device(dev)->irq;



	if (device_may_wakeup(dev))

		enable_irq_wake(irq);



	return 0;

}



static int rt5514_resume(struct device *dev)

{

	int irq = to_spi_device(dev)->irq;



	if (device_may_wakeup(dev))

		disable_irq_wake(irq);



	return 0;

}



static const struct dev_pm_ops rt5514_pm_ops = {

	SET_SYSTEM_SLEEP_PM_OPS(rt5514_suspend, rt5514_resume)

};



static const struct of_device_id rt5514_of_match[] = {

	{ .compatible = "realtek,rt5514", },

	{},
@@ -468,6 +494,7 @@ MODULE_DEVICE_TABLE(of, rt5514_of_match); 
static struct spi_driver rt5514_spi_driver = {

	.driver = {

		.name = "rt5514",

		.pm = &rt5514_pm_ops,

		.of_match_table = of_match_ptr(rt5514_of_match),

	},

	.probe = rt5514_spi_probe,