[PATCH v4 2/8] reset: mpfs: use the auxiliary device creation

[Jerome Brunet <jbrunet@baylibre.com>]

The auxiliary device creation of this driver is simple enough to
use the available auxiliary device creation helper.

Use it and remove some boilerplate code.

Acked-by: Conor Dooley <conor.dooley@microchip.com>
Signed-off-by: Jerome Brunet <jbrunet@baylibre.com>
---
 drivers/reset/reset-mpfs.c | 56 +++++-----------------------------------------
 1 file changed, 5 insertions(+), 51 deletions(-)

diff --git a/drivers/reset/reset-mpfs.c b/drivers/reset/reset-mpfs.c
index 574e59db83a4fcf30b60cb5f638607a2ec7b0580..f6fa10e03ea889e5434110156f7bece808a6ae92 100644
--- a/drivers/reset/reset-mpfs.c
+++ b/drivers/reset/reset-mpfs.c
@@ -155,62 +155,16 @@ static int mpfs_reset_probe(struct auxiliary_device *adev,
 	return devm_reset_controller_register(dev, rcdev);
 }
 
-static void mpfs_reset_unregister_adev(void *_adev)
-{
-	struct auxiliary_device *adev = _adev;
-
-	auxiliary_device_delete(adev);
-	auxiliary_device_uninit(adev);
-}
-
-static void mpfs_reset_adev_release(struct device *dev)
-{
-	struct auxiliary_device *adev = to_auxiliary_dev(dev);
-
-	kfree(adev);
-}
-
-static struct auxiliary_device *mpfs_reset_adev_alloc(struct device *clk_dev)
-{
-	struct auxiliary_device *adev;
-	int ret;
-
-	adev = kzalloc(sizeof(*adev), GFP_KERNEL);
-	if (!adev)
-		return ERR_PTR(-ENOMEM);
-
-	adev->name = "reset-mpfs";
-	adev->dev.parent = clk_dev;
-	adev->dev.release = mpfs_reset_adev_release;
-	adev->id = 666u;
-
-	ret = auxiliary_device_init(adev);
-	if (ret) {
-		kfree(adev);
-		return ERR_PTR(ret);
-	}
-
-	return adev;
-}
-
 int mpfs_reset_controller_register(struct device *clk_dev, void __iomem *base)
 {
 	struct auxiliary_device *adev;
-	int ret;
 
-	adev = mpfs_reset_adev_alloc(clk_dev);
-	if (IS_ERR(adev))
-		return PTR_ERR(adev);
-
-	ret = auxiliary_device_add(adev);
-	if (ret) {
-		auxiliary_device_uninit(adev);
-		return ret;
-	}
-
-	adev->dev.platform_data = (__force void *)base;
+	adev = devm_auxiliary_device_create(clk_dev, "reset-mpfs",
+					    (__force void *)base);
+	if (!adev)
+		return -ENODEV;
 
-	return devm_add_action_or_reset(clk_dev, mpfs_reset_unregister_adev, adev);
+	return 0;
 }
 EXPORT_SYMBOL_NS_GPL(mpfs_reset_controller_register, "MCHP_CLK_MPFS");
 

-- 
2.47.2