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path: root/drivers/reset/reset-berlin.c
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Diffstat (limited to 'drivers/reset/reset-berlin.c')
-rw-r--r--drivers/reset/reset-berlin.c71
1 files changed, 1 insertions, 70 deletions
diff --git a/drivers/reset/reset-berlin.c b/drivers/reset/reset-berlin.c
index d43bc163dd02..3c922d37255c 100644
--- a/drivers/reset/reset-berlin.c
+++ b/drivers/reset/reset-berlin.c
@@ -27,8 +27,6 @@
container_of((p), struct berlin_reset_priv, rcdev)
struct berlin_reset_priv {
- void __iomem *base;
- unsigned int size;
struct regmap *regmap;
struct reset_controller_dev rcdev;
};
@@ -40,10 +38,7 @@ static int berlin_reset_reset(struct reset_controller_dev *rcdev,
int offset = id >> 8;
int mask = BIT(id & 0x1f);
- if (priv->regmap)
- regmap_write(priv->regmap, offset, mask);
- else
- writel(mask, priv->base + offset);
+ regmap_write(priv->regmap, offset, mask);
/* let the reset be effective */
udelay(10);
@@ -58,7 +53,6 @@ static struct reset_control_ops berlin_reset_ops = {
static int berlin_reset_xlate(struct reset_controller_dev *rcdev,
const struct of_phandle_args *reset_spec)
{
- struct berlin_reset_priv *priv = to_berlin_reset_priv(rcdev);
unsigned offset, bit;
if (WARN_ON(reset_spec->args_count != rcdev->of_reset_n_cells))
@@ -67,9 +61,6 @@ static int berlin_reset_xlate(struct reset_controller_dev *rcdev,
offset = reset_spec->args[0];
bit = reset_spec->args[1];
- if (offset >= priv->size)
- return -EINVAL;
-
if (bit >= BERLIN_MAX_RESETS)
return -EINVAL;
@@ -120,63 +111,3 @@ MODULE_AUTHOR("Antoine Tenart <antoine.tenart@free-electrons.com>");
MODULE_AUTHOR("Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>");
MODULE_DESCRIPTION("Marvell Berlin reset driver");
MODULE_LICENSE("GPL");
-
-static int __berlin_reset_init(struct device_node *np)
-{
- struct berlin_reset_priv *priv;
- struct resource res;
- resource_size_t size;
- int ret;
-
- priv = kzalloc(sizeof(*priv), GFP_KERNEL);
- if (!priv)
- return -ENOMEM;
-
- ret = of_address_to_resource(np, 0, &res);
- if (ret)
- goto err;
-
- size = resource_size(&res);
- priv->base = ioremap(res.start, size);
- if (!priv->base) {
- ret = -ENOMEM;
- goto err;
- }
- priv->size = size;
-
- priv->rcdev.owner = THIS_MODULE;
- priv->rcdev.ops = &berlin_reset_ops;
- priv->rcdev.of_node = np;
- priv->rcdev.of_reset_n_cells = 2;
- priv->rcdev.of_xlate = berlin_reset_xlate;
-
- reset_controller_register(&priv->rcdev);
-
- return 0;
-
-err:
- kfree(priv);
- return ret;
-}
-
-static const struct of_device_id berlin_reset_of_match[] __initconst = {
- { .compatible = "marvell,berlin2-chip-ctrl" },
- { .compatible = "marvell,berlin2cd-chip-ctrl" },
- { .compatible = "marvell,berlin2q-chip-ctrl" },
- { },
-};
-
-static int __init berlin_reset_init(void)
-{
- struct device_node *np;
- int ret;
-
- for_each_matching_node(np, berlin_reset_of_match) {
- ret = __berlin_reset_init(np);
- if (ret)
- return ret;
- }
-
- return 0;
-}
-arch_initcall(berlin_reset_init);