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reset: mpfs: use the auxiliary device creation 

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>
Reviewed-by: Philipp Zabel <p.zabel@pengutronix.de>
Signed-off-by: Jerome Brunet <jbrunet@baylibre.com>
Link: https://lore.kernel.org/r/20250611-rst-mpfs-aux-v1-1-c86534b473c3@baylibre.com
Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
This commit is contained in:
Jerome Brunet 2025-06-11 12:06:04 +02:00 committed by Philipp Zabel
parent fd4a06a2e1
commit 9d33595c02
1 changed files with 5 additions and 51 deletions
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56
drivers/reset/reset-mpfs.c
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@ -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);
adev = devm_auxiliary_device_create(clk_dev, "reset-mpfs",
(__force void *)base);
if (!adev)
return -ENODEV;
ret = auxiliary_device_add(adev);
if (ret) {
auxiliary_device_uninit(adev);
return ret;
}
adev->dev.platform_data = (__force void *)base;
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");