FEX-Emu/linux
1
0
Fork 0
mirror of https://github.com/FEX-Emu/linux.git synced 2025-01-05 00:41:23 +00:00
Code Issues Actions Packages Projects Releases Wiki Activity

ASoC: rt5514-spi: check irq status to schedule data copy in resume function

Browse Source 
For wake on voice use case, we need to copy data from DSP buffer
to PCM stream when system wakes up by voice. However the edge
triggered IRQ could be missed when system wakes up, in that case
the irq function will not be called. If the substream was constructed
beforce suspend, we will schedule data copy in resume function.

Signed-off-by: Oder Chiou <oder_chiou@realtek.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
This commit is contained in:
oder_chiou@realtek.com 2017-11-08 15:04:22 +08:00 committed by Mark Brown
parent 58f1c07d23
commit e9c50aa6bd
No known key found for this signature in database
GPG Key ID: 24D68B725D5487D0
1 changed files with 10 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

10
sound/soc/codecs/rt5514-spi.c
View File

@ -473,11 +473,21 @@ static int rt5514_suspend(struct device *dev)
static int rt5514_resume(struct device *dev)
{
struct snd_soc_platform *platform = snd_soc_lookup_platform(dev);
struct rt5514_dsp *rt5514_dsp =
snd_soc_platform_get_drvdata(platform);
int irq = to_spi_device(dev)->irq;
u8 buf[8];
if (device_may_wakeup(dev))
disable_irq_wake(irq);
if (rt5514_dsp->substream) {
rt5514_spi_burst_read(RT5514_IRQ_CTRL, (u8 *)&buf, sizeof(buf));
if (buf[0] & RT5514_IRQ_STATUS_BIT)
rt5514_schedule_copy(rt5514_dsp);
}
return 0;
}