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smc911x: Add IRQ polarity configuration 

Platforms like ARM Ltd's RealView require the IRQ polarity bit to be set
for the SMC9118 chip. This patch allows the dynamic configuration via
the smc911x_platdata structure.

This patch also changes the smc91x_platdata structure name to the
correct smc911x_platdata in the smc911x_drv_probe() function.

Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
This commit is contained in:
Catalin Marinas 2008-10-20 18:15:30 +01:00 committed by Jeff Garzik
parent bd2c4972ff
commit 319edafef6
2 changed files with 9 additions and 3 deletions
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11
drivers/net/smc911x.c
View File

@ -180,7 +180,7 @@ static void PRINT_PKT(u_char *buf, int length)
static void smc911x_reset(struct net_device *dev)
{
struct smc911x_local *lp = netdev_priv(dev);
unsigned int reg, timeout=0, resets=1;
unsigned int reg, timeout=0, resets=1, irq_cfg;
unsigned long flags;
DBG(SMC_DEBUG_FUNC, "%s: --> %s\n", dev->name, __func__);
@ -252,7 +252,12 @@ static void smc911x_reset(struct net_device *dev)
* Deassert IRQ for 1*10us for edge type interrupts
* and drive IRQ pin push-pull
*/
SMC_SET_IRQ_CFG(lp, (1 << 24) | INT_CFG_IRQ_EN_ | INT_CFG_IRQ_TYPE_);
irq_cfg = (1 << 24) | INT_CFG_IRQ_EN_ | INT_CFG_IRQ_TYPE_;
#ifdef SMC_DYNAMIC_BUS_CONFIG
if (lp->cfg.irq_polarity)
irq_cfg |= INT_CFG_IRQ_POL_;
#endif
SMC_SET_IRQ_CFG(lp, irq_cfg);
/* clear anything saved */
if (lp->pending_tx_skb != NULL) {
@ -2054,7 +2059,7 @@ err_out:
*/
static int smc911x_drv_probe(struct platform_device *pdev)
{
struct smc91x_platdata *pd = pdev->dev.platform_data;
struct smc911x_platdata *pd = pdev->dev.platform_data;
struct net_device *ndev;
struct resource *res;
struct smc911x_local *lp;

1
include/linux/smc911x.h
View File

@ -7,6 +7,7 @@
struct smc911x_platdata {
unsigned long flags;
unsigned long irq_flags; /* IRQF_... */
int irq_polarity;
};
#endif /* __SMC911X_H__ */