staging: iio: adt7316: modernize power management

Replaced use of deprecated function SIMPLE_DEV_PM_OPS() with
EXPORT_GPL_SIMPLE_DEV_PM_OPS().

Removed PM preprocessor conditions with usage of pm_sleep_ptr().

Signed-off-by: Michael Harris <[e-mail]>
Reviewed-by: Andy Shevchenko <[e-mail]>
Signed-off-by: Jonathan Cameron <[e-mail]>

drivers/staging/iio/addac/adt7316-i2c.c

···
 	.driver = {
 		.name = "adt7316",
 		.of_match_table = adt7316_of_match,
-		.pm = ADT7316_PM_OPS,
+		.pm = pm_sleep_ptr(&adt7316_pm_ops),
 	},
 	.probe = adt7316_i2c_probe,
 	.id_table = adt7316_i2c_id,

drivers/staging/iio/addac/adt7316-spi.c

···
 	.driver = {
 		.name = "adt7316",
 		.of_match_table = adt7316_of_spi_match,
-		.pm = ADT7316_PM_OPS,
+		.pm = pm_sleep_ptr(&adt7316_pm_ops),
 	},
 	.probe = adt7316_spi_probe,
 	.id_table = adt7316_spi_id,

drivers/staging/iio/addac/adt7316.c

···
 	.name = "events",
 };
 
-#ifdef CONFIG_PM_SLEEP
 static int adt7316_disable(struct device *dev)
 {
 	struct iio_dev *dev_info = dev_get_drvdata(dev);
···
 
 	return _adt7316_store_enabled(chip, 1);
 }
-EXPORT_SYMBOL_GPL(adt7316_pm_ops);
-SIMPLE_DEV_PM_OPS(adt7316_pm_ops, adt7316_disable, adt7316_enable);
-#endif
+
+EXPORT_GPL_SIMPLE_DEV_PM_OPS(adt7316_pm_ops, adt7316_disable, adt7316_enable);
 
 static const struct iio_info adt7316_info = {
 	.attrs = &adt7316_attribute_group,

drivers/staging/iio/addac/adt7316.h

···
 	int (*multi_write)(void *client, u8 first_reg, u8 count, u8 *data);
 };
 
-#ifdef CONFIG_PM_SLEEP
 extern const struct dev_pm_ops adt7316_pm_ops;
-#define ADT7316_PM_OPS (&adt7316_pm_ops)
-#else
-#define ADT7316_PM_OPS NULL
-#endif
+
 int adt7316_probe(struct device *dev, struct adt7316_bus *bus,
 		  const char *name);