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authorKamlakant Patel <kamlakant.patel@broadcom.com>2015-05-04 12:09:49 +0300
committerDavid S. Miller <davem@davemloft.net>2015-05-04 22:10:41 +0300
commit965b2aa78fbcb831acf4f669f494da201f4bcace (patch)
tree8b0a1b1a851551711af32842b4b606b7fccde0ca /drivers/net/ethernet/smsc
parentd66bf7dd27573ee5ea90484899ee952c19ccb194 (diff)
downloadlinux-965b2aa78fbcb831acf4f669f494da201f4bcace.tar.xz
net/smsc911x: fix irq resource allocation failure
When smsc911x uses GPIO as the interrupt controller, and if both are loaded as modules, we get following error: "smsc911x: Could not allocate irq resource" This issue is because of smsc911x using platform_get_resource to get device tree based irq resource. commit "9ec36ca (of/irq: do irq resolution in platform_get_irq)" and commit "7085a7 (drivers: platform: parse IRQ flags from resources)" add support in platform_get_irq to resolve irq and irq_flags respectively for both modern device tree and legacy static platform data platforms. Modify smsc911x driver to use platform_get_irq to pick up irq resource correctly and use irq_get_trigger_type to get the IRQ trigger flags. Signed-off-by: Kamlakant Patel <kamlakant.patel@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/ethernet/smsc')
-rw-r--r--drivers/net/ethernet/smsc/smsc911x.c12
1 files changed, 6 insertions, 6 deletions
diff --git a/drivers/net/ethernet/smsc/smsc911x.c b/drivers/net/ethernet/smsc/smsc911x.c
index 41047c9143d0..959aeeade0c9 100644
--- a/drivers/net/ethernet/smsc/smsc911x.c
+++ b/drivers/net/ethernet/smsc/smsc911x.c
@@ -2418,9 +2418,9 @@ static int smsc911x_drv_probe(struct platform_device *pdev)
struct net_device *dev;
struct smsc911x_data *pdata;
struct smsc911x_platform_config *config = dev_get_platdata(&pdev->dev);
- struct resource *res, *irq_res;
+ struct resource *res;
unsigned int intcfg = 0;
- int res_size, irq_flags;
+ int res_size, irq, irq_flags;
int retval;
res = platform_get_resource_byname(pdev, IORESOURCE_MEM,
@@ -2434,8 +2434,8 @@ static int smsc911x_drv_probe(struct platform_device *pdev)
}
res_size = resource_size(res);
- irq_res = platform_get_resource(pdev, IORESOURCE_IRQ, 0);
- if (!irq_res) {
+ irq = platform_get_irq(pdev, 0);
+ if (irq <= 0) {
pr_warn("Could not allocate irq resource\n");
retval = -ENODEV;
goto out_0;
@@ -2455,8 +2455,8 @@ static int smsc911x_drv_probe(struct platform_device *pdev)
SET_NETDEV_DEV(dev, &pdev->dev);
pdata = netdev_priv(dev);
- dev->irq = irq_res->start;
- irq_flags = irq_res->flags & IRQF_TRIGGER_MASK;
+ dev->irq = irq;
+ irq_flags = irq_get_trigger_type(irq);
pdata->ioaddr = ioremap_nocache(res->start, res_size);
pdata->dev = dev;