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SoC: rt274: Fix internal jack assignment in set_jack callback 

When we call snd_soc_component_set_jack(component, NULL, NULL) we should
set rt274->jack to passed jack, so when interrupt is triggered it calls
snd_soc_jack_report(rt274->jack, ...) with proper value.

This fixes problem in machine where in register, we call
snd_soc_register(component, &headset, NULL), which just calls
rt274_mic_detect via callback.
Now when machine driver is removed "headset" will be gone, so we
need to tell codec driver that it's gone with:
snd_soc_register(component, NULL, NULL), but we also need to be able
to handle NULL jack argument here gracefully.
If we don't set it to NULL, next time the rt274_irq runs it will call
snd_soc_jack_report with first argument being invalid pointer and there
will be Oops.

Signed-off-by: Amadeusz Sławiński <amadeuszx.slawinski@linux.intel.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
This commit is contained in:
Amadeusz Sławiński 2019-06-05 15:45:52 +02:00 committed by Mark Brown
parent 6d647b736a
commit 04268bf275
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1 changed files with 2 additions and 1 deletions
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3
sound/soc/codecs/rt274.c
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@ -405,6 +405,8 @@ static int rt274_mic_detect(struct snd_soc_component *component,
{
struct rt274_priv *rt274 = snd_soc_component_get_drvdata(component);
rt274->jack = jack;
if (jack == NULL) {
/* Disable jack detection */
regmap_update_bits(rt274->regmap, RT274_EAPD_GPIO_IRQ_CTRL,
@ -412,7 +414,6 @@ static int rt274_mic_detect(struct snd_soc_component *component,
return 0;
}
rt274->jack = jack;
regmap_update_bits(rt274->regmap, RT274_EAPD_GPIO_IRQ_CTRL,
RT274_IRQ_EN, RT274_IRQ_EN);