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mfd: madera: Add shared data for accessory detection

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Add variables to struct madera that will be shared by the
extcon and audio codec drivers to synchronize output state
during accessory detection. Also add a mutex to protect
the DAPM pointer.

Signed-off-by: Richard Fitzgerald <[email protected]>
Signed-off-by: Lee Jones <[email protected]>
This commit is contained in:
Richard Fitzgerald 2018-11-12 15:28:37 +00:00 • committed by Lee Jones
commit 7f9472134a
2 changed files with 10 additions and 0 deletions
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3
drivers/mfd/madera-core.c
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@ -15,6 +15,7 @@
#include <linux/gpio.h>
#include <linux/mfd/core.h>
#include <linux/module.h>
#include <linux/mutex.h>
#include <linux/notifier.h>
#include <linux/of.h>
#include <linux/of_gpio.h>
@ -357,6 +358,8 @@ int madera_dev_init(struct madera *madera)
dev_set_drvdata(madera->dev, madera);
BLOCKING_INIT_NOTIFIER_HEAD(&madera->notifier);
mutex_init(&madera->dapm_ptr_lock);
madera_set_micbias_info(madera);
/*