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Subject[PATCH] ASoC: da7219: Improve system suspend and resume handling
Date
When DA7219 is suspended, prevent the AAD IRQ handler is unexpectedly
executed and cause the I2C driver "Transfer while suspended" failure.

Signed-off-by: David Rau <David.Rau.opensource@dm.renesas.com>
---
sound/soc/codecs/da7219-aad.c | 9 +++++++--
1 file changed, 7 insertions(+), 2 deletions(-)

diff --git a/sound/soc/codecs/da7219-aad.c b/sound/soc/codecs/da7219-aad.c
index 3bbe85091649..4c4405942779 100644
--- a/sound/soc/codecs/da7219-aad.c
+++ b/sound/soc/codecs/da7219-aad.c
@@ -927,10 +927,15 @@ void da7219_aad_suspend(struct snd_soc_component *component)
struct snd_soc_dapm_context *dapm = snd_soc_component_get_dapm(component);
u8 micbias_ctrl;

+ disable_irq(da7219_aad->irq);
+
if (da7219_aad->jack) {
/* Disable jack detection during suspend */
snd_soc_component_update_bits(component, DA7219_ACCDET_CONFIG_1,
DA7219_ACCDET_EN_MASK, 0);
+ cancel_delayed_work_sync(&da7219_aad->jack_det_work);
+ /* Disable ground switch */
+ snd_soc_component_update_bits(component, 0xFB, 0x01, 0x00);

/*
* If we have a 4-pole jack inserted, then micbias will be
@@ -947,8 +952,6 @@ void da7219_aad_suspend(struct snd_soc_component *component)
}
}
}
-
- synchronize_irq(da7219_aad->irq);
}

void da7219_aad_resume(struct snd_soc_component *component)
@@ -971,6 +974,8 @@ void da7219_aad_resume(struct snd_soc_component *component)
DA7219_ACCDET_EN_MASK,
DA7219_ACCDET_EN_MASK);
}
+
+ enable_irq(da7219_aad->irq);
}


--
2.17.1
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