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ASoC: arizona: Fix interaction between headphone outputs and identification

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Running HPDET while the headphone outputs are enabled can disrupt the
operation of HPDET. In order to avoid this HPDET needs to disable the
headphone outputs and ASoC needs to not enable them while HPDET is
running.

Do the ASoC side of this by storing the enable state in the core driver
structure and only writing to the device if a flag indicating that the
accessory detection side is in a state where it can have the headphone
output stage enabled.

Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
This commit is contained in:
Mark Brown
2013-02-22 18:36:53 +00:00
parent 03409071ce
commit f607e31ce3
5 changed files with 47 additions and 8 deletions
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3
include/linux/mfd/arizona/core.h
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@@ -100,6 +100,9 @@ struct arizona {
struct regmap_irq_chip_data *aod_irq_chip;
struct regmap_irq_chip_data *irq_chip;
bool hpdet_magic;
unsigned int hp_ena;
struct mutex clk_lock;
int clk32k_ref;