[PATCH 2/7] mfd: syscon: Don't call request_iomem_region()

[Andrey Smirnov]

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 at pengutronix.de>
Signed-off-by: Andrey Smirnov <andrew.smirnov at gmail.com>
---
 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