The current implementation uses sunxi_reset_init function for both early
init and platform device probe.
The sunxi_reset_init function uses DT to retrieve device resources, which
will be an issue if reset controllers are registered from an MFD device
that define resources from mfd_cell definition.
Moreover, we can make use of devm functions when we're in probe context.
Signed-off-by: Boris BREZILLON <boris.brezillon@xxxxxxxxxxxxxxxxxx>
---
drivers/reset/reset-sunxi.c | 19 ++++++++++++++++++-
1 file changed, 18 insertions(+), 1 deletion(-)
diff --git a/drivers/reset/reset-sunxi.c b/drivers/reset/reset-sunxi.c
index 695bd34..115fbb1 100644
--- a/drivers/reset/reset-sunxi.c
+++ b/drivers/reset/reset-sunxi.c
@@ -145,7 +145,24 @@ MODULE_DEVICE_TABLE(of, sunxi_reset_dt_ids);
static int sunxi_reset_probe(struct platform_device *pdev)
{
- return sunxi_reset_init(pdev->dev.of_node);
+ struct sunxi_reset_data *data;
+ struct resource *res;
+
+ data = devm_kzalloc(&pdev->dev, sizeof(*data), GFP_KERNEL);
+ if (!data)
+ return -ENOMEM;
+
+ res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+ data->membase = devm_request_and_ioremap(&pdev->dev, res);
+ if (!data->membase)
+ return -ENOMEM;
+
+ data->rcdev.owner = THIS_MODULE;
+ data->rcdev.nr_resets = resource_size(res) * 32;
+ data->rcdev.ops = &sunxi_reset_ops;
+ data->rcdev.of_node = pdev->dev.of_node;
+
+ return reset_controller_register(&data->rcdev);
}
static int sunxi_reset_remove(struct platform_device *pdev)
--
1.8.3.2
--
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