[PATCH 01/10] smsc911x: add support for platform-specific irq flags
From: Steve Glendinning <hidden>
Date: 2009-01-27 16:51:13
Subsystem:
networking drivers, the rest · Maintainers:
Andrew Lunn, "David S. Miller", Eric Dumazet, Jakub Kicinski, Paolo Abeni, Linus Torvalds
this patch adds support for the platform_device's resources to indicate additional flags to use when registering the irq, for example IORESOURCE_IRQ_LOWLEVEL (which corresponds to IRQF_TRIGGER_LOW). These should be set in the irq resource flags field. Signed-off-by: Steve Glendinning <redacted> --- drivers/net/smsc911x.c | 19 ++++++++++++++----- 1 files changed, 14 insertions(+), 5 deletions(-)
diff --git a/drivers/net/smsc911x.c b/drivers/net/smsc911x.c
index f513bdf..3565df1 100644
--- a/drivers/net/smsc911x.c
+++ b/drivers/net/smsc911x.c@@ -1892,9 +1892,9 @@ static int __devinit smsc911x_drv_probe(struct platform_device *pdev) struct net_device *dev; struct smsc911x_data *pdata; struct smsc911x_platform_config *config = pdev->dev.platform_data; - struct resource *res; + struct resource *res, *irq_res; unsigned int intcfg = 0; - int res_size; + int res_size, irq_flags; int retval; DECLARE_MAC_BUF(mac);
@@ -1919,6 +1919,14 @@ static int __devinit smsc911x_drv_probe(struct platform_device *pdev) } res_size = res->end - res->start; + irq_res = platform_get_resource(pdev, IORESOURCE_IRQ, 0); + if (!irq_res) { + pr_warning("%s: Could not allocate irq resource.\n", + SMSC_CHIPNAME); + retval = -ENODEV; + goto out_0; + } + if (!request_mem_region(res->start, res_size, SMSC_CHIPNAME)) { retval = -EBUSY; goto out_0;
@@ -1935,7 +1943,8 @@ static int __devinit smsc911x_drv_probe(struct platform_device *pdev) pdata = netdev_priv(dev); - dev->irq = platform_get_irq(pdev, 0); + dev->irq = irq_res->start; + irq_flags = irq_res->flags & IRQF_TRIGGER_MASK; pdata->ioaddr = ioremap_nocache(res->start, res_size); /* copy config parameters across to pdata */
@@ -1968,8 +1977,8 @@ static int __devinit smsc911x_drv_probe(struct platform_device *pdev) smsc911x_reg_write(pdata, INT_EN, 0); smsc911x_reg_write(pdata, INT_STS, 0xFFFFFFFF); - retval = request_irq(dev->irq, smsc911x_irqhandler, IRQF_DISABLED, - dev->name, dev); + retval = request_irq(dev->irq, smsc911x_irqhandler, + irq_flags | IRQF_DISABLED, dev->name, dev); if (retval) { SMSC_WARNING(PROBE, "Unable to claim requested irq: %d", dev->irq);
--
1.6.0.6