Input: adxl34x - unify dev_pm_ops using EXPORT_SIMPLE_DEV_PM_OPS()

The I2C and SPI PM callbacks were identical (though wrapped in some
bouncing out to the bus specific container of the struct device and
then back again to get the drvdata).  As such rather than just moving
these to SIMPLE_DEV_PM_OPS() and pm_sleep_ptr() take the opportunity
to unify the struct dev_pm_ops and use the new EXPORT_SIMPLE_DEV_PM_OPS()
macro so that we can drop the unused suspend and resume callbacks as well
as the structure if !CONFIG_PM_SLEEP without needing to mark the callbacks
__maybe_unused.

Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Cc: Michael Hennerich <michael.hennerich@analog.com>
Link: https://lore.kernel.org/r/20230114171620.42891-9-jic23@kernel.org
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>

1 files changed, 12 insertions, 4 deletions

diff --git a/drivers/input/misc/adxl34x.c b/drivers/input/misc/adxl34x.c
index a4af314392a9..eecca671b588 100644
--- a/drivers/input/misc/adxl34x.c
+++ b/drivers/input/misc/adxl34x.c
@@ -412,8 +412,10 @@ static void __adxl34x_enable(struct adxl34x *ac)
 	AC_WRITE(ac, POWER_CTL, ac->pdata.power_mode | PCTL_MEASURE);
 }
 
-void adxl34x_suspend(struct adxl34x *ac)
+static int adxl34x_suspend(struct device *dev)
 {
+	struct adxl34x *ac = dev_get_drvdata(dev);
+
 	mutex_lock(&ac->mutex);
 
 	if (!ac->suspended && !ac->disabled && ac->opened)
@@ -422,11 +424,14 @@ void adxl34x_suspend(struct adxl34x *ac)
 	ac->suspended = true;
 
 	mutex_unlock(&ac->mutex);
+
+	return 0;
 }
-EXPORT_SYMBOL_GPL(adxl34x_suspend);
 
-void adxl34x_resume(struct adxl34x *ac)
+static int adxl34x_resume(struct device *dev)
 {
+	struct adxl34x *ac = dev_get_drvdata(dev);
+
 	mutex_lock(&ac->mutex);
 
 	if (ac->suspended && !ac->disabled && ac->opened)
@@ -435,8 +440,9 @@ void adxl34x_resume(struct adxl34x *ac)
 	ac->suspended = false;
 
 	mutex_unlock(&ac->mutex);
+
+	return 0;
 }
-EXPORT_SYMBOL_GPL(adxl34x_resume);
 
 static ssize_t adxl34x_disable_show(struct device *dev,
 				    struct device_attribute *attr, char *buf)
@@ -906,6 +912,8 @@ void adxl34x_remove(struct adxl34x *ac)
 }
 EXPORT_SYMBOL_GPL(adxl34x_remove);
 
+EXPORT_GPL_SIMPLE_DEV_PM_OPS(adxl34x_pm, adxl34x_suspend, adxl34x_resume);
+
 MODULE_AUTHOR("Michael Hennerich <hennerich@blackfin.uclinux.org>");
 MODULE_DESCRIPTION("ADXL345/346 Three-Axis Digital Accelerometer Driver");
 MODULE_LICENSE("GPL");