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authorJonas Bonn <jonas@southpole.se>2010-11-24 17:26:21 +0100
committerBen Dooks <ben-linux@fluff.org>2011-01-04 01:04:23 +0000
commit47def5b80f087d033013c0609679812cfafd6b49 (patch)
tree6ec05ee144fdad62d3308aa50c1a1149e571a0e1 /drivers/i2c/busses/i2c-ocores.c
parent049bb69d82e5f7f356949c1ae34a244b3338611b (diff)
i2c-ocores: Use devres for resource allocation
This patch converts the i2c-cores driver to use devres routines for resource allocation. Signed-off-by: Jonas Bonn <jonas@southpole.se> Signed-off-by: Ben Dooks <ben-linux@fluff.org>
Diffstat (limited to 'drivers/i2c/busses/i2c-ocores.c')
-rw-r--r--drivers/i2c/busses/i2c-ocores.c46
1 files changed, 11 insertions, 35 deletions
diff --git a/drivers/i2c/busses/i2c-ocores.c b/drivers/i2c/busses/i2c-ocores.c
index c05e8c44404a..dee0352737d7 100644
--- a/drivers/i2c/busses/i2c-ocores.c
+++ b/drivers/i2c/busses/i2c-ocores.c
@@ -253,22 +253,21 @@ static int __devinit ocores_i2c_probe(struct platform_device *pdev)
if (!res2)
return -ENODEV;
- i2c = kzalloc(sizeof(*i2c), GFP_KERNEL);
+ i2c = devm_kzalloc(&pdev->dev, sizeof(*i2c), GFP_KERNEL);
if (!i2c)
return -ENOMEM;
- if (!request_mem_region(res->start, resource_size(res),
- pdev->name)) {
+ if (!devm_request_mem_region(&pdev->dev, res->start,
+ resource_size(res), pdev->name)) {
dev_err(&pdev->dev, "Memory region busy\n");
- ret = -EBUSY;
- goto request_mem_failed;
+ return -EBUSY;
}
- i2c->base = ioremap(res->start, resource_size(res));
+ i2c->base = devm_ioremap_nocache(&pdev->dev, res->start,
+ resource_size(res));
if (!i2c->base) {
dev_err(&pdev->dev, "Unable to map registers\n");
- ret = -EIO;
- goto map_failed;
+ return -EIO;
}
pdata = pdev->dev.platform_data;
@@ -284,10 +283,11 @@ static int __devinit ocores_i2c_probe(struct platform_device *pdev)
ocores_init(i2c);
init_waitqueue_head(&i2c->wait);
- ret = request_irq(res2->start, ocores_isr, 0, pdev->name, i2c);
+ ret = devm_request_irq(&pdev->dev, res2->start, ocores_isr, 0,
+ pdev->name, i2c);
if (ret) {
dev_err(&pdev->dev, "Cannot claim IRQ\n");
- goto request_irq_failed;
+ return ret;
}
/* hook up driver to tree */
@@ -303,7 +303,7 @@ static int __devinit ocores_i2c_probe(struct platform_device *pdev)
ret = i2c_add_adapter(&i2c->adap);
if (ret) {
dev_err(&pdev->dev, "Failed to add adapter\n");
- goto add_adapter_failed;
+ return ret;
}
/* add in known devices to the bus */
@@ -313,23 +313,11 @@ static int __devinit ocores_i2c_probe(struct platform_device *pdev)
}
return 0;
-
-add_adapter_failed:
- free_irq(res2->start, i2c);
-request_irq_failed:
- iounmap(i2c->base);
-map_failed:
- release_mem_region(res->start, resource_size(res));
-request_mem_failed:
- kfree(i2c);
-
- return ret;
}
static int __devexit ocores_i2c_remove(struct platform_device* pdev)
{
struct ocores_i2c *i2c = platform_get_drvdata(pdev);
- struct resource *res;
/* disable i2c logic */
oc_setreg(i2c, OCI2C_CONTROL, oc_getreg(i2c, OCI2C_CONTROL)
@@ -339,18 +327,6 @@ static int __devexit ocores_i2c_remove(struct platform_device* pdev)
i2c_del_adapter(&i2c->adap);
platform_set_drvdata(pdev, NULL);
- res = platform_get_resource(pdev, IORESOURCE_IRQ, 0);
- if (res)
- free_irq(res->start, i2c);
-
- iounmap(i2c->base);
-
- res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
- if (res)
- release_mem_region(res->start, resource_size(res));
-
- kfree(i2c);
-
return 0;
}