diff options
| author | oder_chiou@realtek.com <oder_chiou@realtek.com> | 2017-11-08 15:04:21 +0800 |
|---|---|---|
| committer | Mark Brown <broonie@kernel.org> | 2017-11-08 21:29:05 +0000 |
| commit | 58f1c07d23cddbc4c8aa99a214934eb7d33e8523 (patch) | |
| tree | 0f5852e326cc2af1e2b17dd25969529ce3ec9528 /sound | |
| parent | c4a71ff78e668a75a4a3cfd9ebbfbd5cbe8da5fb (diff) | |
| download | linux-58f1c07d23cddbc4c8aa99a214934eb7d33e8523.tar.bz2 | |
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: Chinyue Chen <chinyue@chromium.org>
Signed-off-by: Oder Chiou <oder_chiou@realtek.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
Diffstat (limited to 'sound')
| -rw-r--r-- | sound/soc/codecs/rt5514-spi.c | 27 |
1 files changed, 27 insertions, 0 deletions
diff --git a/sound/soc/codecs/rt5514-spi.c b/sound/soc/codecs/rt5514-spi.c index 0896817ffc3f..d03756913dd9 100644 --- a/sound/soc/codecs/rt5514-spi.c +++ b/sound/soc/codecs/rt5514-spi.c @@ -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, |