ASoC: nau8825: make crosstalk function optional
Make crosstalk functoin optional.
The jack detection can speed up without crosstalk detection.
Let the decision of function usage to platform design.
The patch helps the issue concern as follows:
Google issue 35574278: Chell_headphone pop back from S3
There is a concern as follows:
cras getting blocked for 2 seconds (worst-case 3 seconds)
As I understand, ChromeOS expects resume finishes in 1 seconds.
Video/Audio playing after 3 seconds of resume seems against the spec.
If we really have to make the choice I would choose pop noise instead
of waiting for 3 seconds.
Signed-off-by: John Hsu <KCHSU0@nuvoton.com>
Signed-off-by: John Hsu <supercraig0719@gmail.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
diff --git a/sound/soc/codecs/nau8825.c b/sound/soc/codecs/nau8825.c
index 503a6d8..a8c7a55 100644
--- a/sound/soc/codecs/nau8825.c
+++ b/sound/soc/codecs/nau8825.c
@@ -1686,7 +1686,7 @@ static irqreturn_t nau8825_interrupt(int irq, void *data)
} else if (active_irq & NAU8825_HEADSET_COMPLETION_IRQ) {
if (nau8825_is_jack_inserted(regmap)) {
event |= nau8825_jack_insert(nau8825);
- if (!nau8825->high_imped) {
+ if (!nau8825->xtalk_bypass && !nau8825->high_imped) {
/* Apply the cross talk suppression in the
* headset without high impedance.
*/
@@ -2504,6 +2504,10 @@ static int nau8825_read_device_properties(struct device *dev,
&nau8825->jack_eject_debounce);
if (ret)
nau8825->jack_eject_debounce = 0;
+ ret = device_property_read_u32(dev, "nuvoton,crosstalk-bypass",
+ &nau8825->xtalk_bypass);
+ if (ret)
+ nau8825->xtalk_bypass = 1;
nau8825->mclk = devm_clk_get(dev, "mclk");
if (PTR_ERR(nau8825->mclk) == -EPROBE_DEFER) {