Commit 319edafe authored by Catalin Marinas's avatar Catalin Marinas Committed by Jeff Garzik
Browse files

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: default avatarCatalin Marinas <catalin.marinas@arm.com>
Signed-off-by: default avatarJeff Garzik <jgarzik@redhat.com>
parent bd2c4972

drivers/net/smc911x.c

+8 −3
Original line number Diff line number Diff line
@@ -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;

include/linux/smc911x.h

+1 −0
Original line number Diff line number Diff line
@@ -7,6 +7,7 @@ 
struct smc911x_platdata {

	unsigned long flags;

	unsigned long irq_flags; /* IRQF_... */

	int irq_polarity;

};



#endif /* __SMC911X_H__ */

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