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ASoC: rockchip: rockchip_max98090: Enable SHDN to fix headset detection 

max98090 spec states that chip needs to be in turned-on state to supply
mic bias. Enable SHDN dapm widget along with MICBIAS widget to
actually turn on mic bias for proper headset button detection.
This is similar to cht_ti_jack_event in
sound/soc/intel/boards/cht_bsw_max98090_ti.c.

Note that due to ts3a227e reports the jack event right away before the
notifier is registered, if headset is plugged on boot, headset button
will not get detected until headset is unplugged and plugged. This is
still an issue to be fixed.

Signed-off-by: Cheng-Yi Chiang <cychiang@chromium.org>
Link: https://lore.kernel.org/r/20191028095229.99438-1-cychiang@chromium.org
Signed-off-by: Mark Brown <broonie@kernel.org>
This commit is contained in:
Cheng-Yi Chiang 2019-10-28 17:52:29 +08:00 committed by Mark Brown
parent dd7e8d903e
commit 07c1b73e2a
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GPG Key ID: 24D68B725D5487D0
1 changed files with 5 additions and 2 deletions
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7
sound/soc/rockchip/rockchip_max98090.c
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@ -66,10 +66,13 @@ static int rk_jack_event(struct notifier_block *nb, unsigned long event,
struct snd_soc_jack *jack = (struct snd_soc_jack *)data;
struct snd_soc_dapm_context *dapm = &jack->card->dapm;
if (event & SND_JACK_MICROPHONE)
if (event & SND_JACK_MICROPHONE) {
snd_soc_dapm_force_enable_pin(dapm, "MICBIAS");
else
snd_soc_dapm_force_enable_pin(dapm, "SHDN");
} else {
snd_soc_dapm_disable_pin(dapm, "MICBIAS");
snd_soc_dapm_disable_pin(dapm, "SHDN");
}
snd_soc_dapm_sync(dapm);