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path: root/drivers/net/ethernet/cirrus/cs89x0.c
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Diffstat (limited to 'drivers/net/ethernet/cirrus/cs89x0.c')
-rw-r--r--drivers/net/ethernet/cirrus/cs89x0.c32
1 files changed, 7 insertions, 25 deletions
diff --git a/drivers/net/ethernet/cirrus/cs89x0.c b/drivers/net/ethernet/cirrus/cs89x0.c
index fe84fbabc0d4..9823a0ea7937 100644
--- a/drivers/net/ethernet/cirrus/cs89x0.c
+++ b/drivers/net/ethernet/cirrus/cs89x0.c
@@ -145,7 +145,6 @@ struct net_local {
int force; /* force various values; see FORCE* above. */
spinlock_t lock;
void __iomem *virt_addr;/* CS89x0 virtual address. */
- unsigned long size; /* Length of CS89x0 memory region. */
#if ALLOW_DMA
int use_dma; /* Flag: we're using dma */
int dma; /* DMA channel */
@@ -1854,41 +1853,29 @@ static int __init cs89x0_platform_probe(struct platform_device *pdev)
lp = netdev_priv(dev);
- mem_res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
dev->irq = platform_get_irq(pdev, 0);
- if (mem_res == NULL || dev->irq <= 0) {
- dev_warn(&dev->dev, "memory/interrupt resource missing\n");
+ if (dev->irq <= 0) {
+ dev_warn(&dev->dev, "interrupt resource missing\n");
err = -ENXIO;
goto free;
}
- lp->size = resource_size(mem_res);
- if (!request_mem_region(mem_res->start, lp->size, DRV_NAME)) {
- dev_warn(&dev->dev, "request_mem_region() failed\n");
- err = -EBUSY;
+ mem_res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+ virt_addr = devm_ioremap_resource(&pdev->dev, mem_res);
+ if (IS_ERR(virt_addr)) {
+ err = PTR_ERR(virt_addr);
goto free;
}
- virt_addr = ioremap(mem_res->start, lp->size);
- if (!virt_addr) {
- dev_warn(&dev->dev, "ioremap() failed\n");
- err = -ENOMEM;
- goto release;
- }
-
err = cs89x0_probe1(dev, virt_addr, 0);
if (err) {
dev_warn(&dev->dev, "no cs8900 or cs8920 detected\n");
- goto unmap;
+ goto free;
}
platform_set_drvdata(pdev, dev);
return 0;
-unmap:
- iounmap(virt_addr);
-release:
- release_mem_region(mem_res->start, lp->size);
free:
free_netdev(dev);
return err;
@@ -1897,17 +1884,12 @@ free:
static int cs89x0_platform_remove(struct platform_device *pdev)
{
struct net_device *dev = platform_get_drvdata(pdev);
- struct net_local *lp = netdev_priv(dev);
- struct resource *mem_res;
/* This platform_get_resource() call will not return NULL, because
* the same call in cs89x0_platform_probe() has returned a non NULL
* value.
*/
- mem_res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
unregister_netdev(dev);
- iounmap(lp->virt_addr);
- release_mem_region(mem_res->start, lp->size);
free_netdev(dev);
return 0;
}