i2c: virtio: Remove #ifdef guards for PM related functions

Use the new PM macros for the suspend and resume functions to be
automatically dropped by the compiler when CONFIG_PM or
CONFIG_PM_SLEEP are disabled, without having to use #ifdef guards.

This has the advantage of always compiling these functions in,
independently of any Kconfig option. Thanks to that, bugs and other
regressions are subsequently easier to catch.

Signed-off-by: Paul Cercueil <paul@crapouillou.net>
Reviewed-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Acked-by: Viresh Kumar <viresh.kumar@linaro.org>
Link: https://lore.kernel.org/r/20230722115310.27681-5-paul@crapouillou.net
Signed-off-by: Andi Shyti <andi.shyti@kernel.org>

drivers/i2c/busses/i2c-virtio.c

@@ -243,7 +243,6 @@ static struct virtio_device_id id_table[] = {
 };
 MODULE_DEVICE_TABLE(virtio, id_table);
 
-#ifdef CONFIG_PM_SLEEP
 static int virtio_i2c_freeze(struct virtio_device *vdev)
 {
 	virtio_i2c_del_vqs(vdev);
@@ -254,7 +253,6 @@ static int virtio_i2c_restore(struct virtio_device *vdev)
 {
 	return virtio_i2c_setup_vqs(vdev->priv);
 }
-#endif
 
 static const unsigned int features[] = {
 	VIRTIO_I2C_F_ZERO_LENGTH_REQUEST,
@@ -269,10 +267,8 @@ static struct virtio_driver virtio_i2c_driver = {
 	.driver			= {
 		.name	= "i2c_virtio",
 	},
-#ifdef CONFIG_PM_SLEEP
-	.freeze = virtio_i2c_freeze,
-	.restore = virtio_i2c_restore,
-#endif
+	.freeze			= pm_sleep_ptr(virtio_i2c_freeze),
+	.restore		= pm_sleep_ptr(virtio_i2c_restore),
 };
 module_virtio_driver(virtio_i2c_driver);