[PATCH] smc91x needs settable IRQ trigger type

For boards that invert the SMC91x IRQ line (maybe an FPGA inverts it),
the set_irq_type() call can't assume IRQT_RISING.  These particular
boards currently use OMAP-specific calls to change the trigger type,
but the boards break when set_irq_type() stops being a NOP.

Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>

2 files changed, 14 insertions, 1 deletions

diff --git a/drivers/net/smc91x.c b/drivers/net/smc91x.c
index cfb9d3cdb04..1438fdd2082 100644
--- a/drivers/net/smc91x.c
+++ b/drivers/net/smc91x.c
@@ -1998,7 +1998,7 @@ static int __init smc_probe(struct net_device *dev, void __iomem *ioaddr)
         if (retval)
                 goto err_out;
 
-        set_irq_type(dev->irq, IRQT_RISING);
+        set_irq_type(dev->irq, SMC_IRQ_TRIGGER_TYPE);
 
 #ifdef SMC_USE_PXA_DMA
         {
diff --git a/drivers/net/smc91x.h b/drivers/net/smc91x.h
index 946528e6b74..7089d86e857 100644
--- a/drivers/net/smc91x.h
+++ b/drivers/net/smc91x.h
@@ -182,6 +182,16 @@ SMC_outw(u16 val, void __iomem *ioaddr, int reg)
 #define SMC_insl(a, r, p, l)    readsl((a) + (r), p, l)
 #define SMC_outsl(a, r, p, l)   writesl((a) + (r), p, l)
 
+#include <asm/mach-types.h>
+#include <asm/arch/cpu.h>
+
+#define SMC_IRQ_TRIGGER_TYPE (( \
+                   machine_is_omap_h2() \
+                || machine_is_omap_h3() \
+                || (machine_is_omap_innovator() && !cpu_is_omap150()) \
+        ) ? IRQT_FALLING : IRQT_RISING)
+
+
 #elif   defined(CONFIG_SH_SH4202_MICRODEV)
 
 #define SMC_CAN_USE_8BIT        0
@@ -300,6 +310,9 @@ static inline void SMC_outsw (unsigned long a, int r, unsigned char* p, int l)
 
 #endif
 
+#ifndef SMC_IRQ_TRIGGER_TYPE
+#define SMC_IRQ_TRIGGER_TYPE    IRQT_RISING
+#endif
 
 #ifdef SMC_USE_PXA_DMA
 /*