On platforms that mix dedicated IP block register space with
miscellaneous registers it is necessary to share register window between
syscon and dedicated IP block driver. Calling request_iomem_region()
implies exclusive ownership of the region, which, in the case above
could not happen.
This change also makes this driver's behaviour to that of its Linux
kernel counterpart.
Suggested-by: Sascha Hauer <s.hauer@xxxxxxxxxxxxxx>
Signed-off-by: Andrey Smirnov <andrew.smirnov@xxxxxxxxx>
---
drivers/mfd/syscon.c | 6 ------
1 file changed, 6 deletions(-)
diff --git a/drivers/mfd/syscon.c b/drivers/mfd/syscon.c
index 9589a03..ac46122 100644
--- a/drivers/mfd/syscon.c
+++ b/drivers/mfd/syscon.c
@@ -76,12 +76,6 @@ static int syscon_probe(struct device_d *dev)
return PTR_ERR(res);
}
- res = request_iomem_region(dev_name(dev), res->start, res->end);
- if (IS_ERR(res)) {
- free(syscon);
- return PTR_ERR(res);
- }
-
syscon->base = (void __iomem *)res->start;
dev->priv = syscon;
--
2.5.5
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