[NET] smc91x: Make smc91x use IRQ resource trigger flags

smc91x is shared between many different platforms.  Each platform needs
to specify the interrupt type, and in some cases the irq type depends
on more than just the build configuration - it depends on runtime
checks.

Rather than throwing this code into the SMC_IRQ_FLAGS definition, provide
a way for these flags to be passed via the IRQ resource itself.

Note that IRQF_TRIGGER_* constants are intentionally defined to correspond
with the IORESOURCE_IRQ_* interrupt type flags, in much the same way that
the low bits of PCI iomem resources correspond with the BAR flag bits.

Also provide a way to configure smc91x to read the IRQ flags from the
resource.  Once all platforms have been converted over (signified
by all definitions of SMC_IRQ_FLAGS being -1) SMC_IRQ_FLAGS should
be removed.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Acked-by: Nicolas Pitre <nico@cam.org>
Acked-by: Jeff Garzik <jgarzik@redhat.com>

arch/arm/mach-omap1/board-fsample.c

@@ -76,7 +76,7 @@ static struct resource smc91x_resources[] = {
 	[1] = {
 		.start	= INT_730_MPU_EXT_NIRQ,
 		.end	= 0,
-		.flags	= IORESOURCE_IRQ,
+		.flags	= IORESOURCE_IRQ | IORESOURCE_IRQ_HIGHEDGE,
 	},
 };
 

arch/arm/mach-omap1/board-h2.c

@@ -209,7 +209,7 @@ static struct resource h2_smc91x_resources[] = {
 	[1] = {
 		.start	= OMAP_GPIO_IRQ(0),
 		.end	= OMAP_GPIO_IRQ(0),
-		.flags	= IORESOURCE_IRQ,
+		.flags	= IORESOURCE_IRQ | IORESOURCE_IRQ_LOWEDGE,
 	},
 };
 

arch/arm/mach-omap1/board-h3.c

@@ -208,7 +208,7 @@ static struct resource smc91x_resources[] = {
 	[1] = {
 		.start	= OMAP_GPIO_IRQ(40),
 		.end	= OMAP_GPIO_IRQ(40),
-		.flags	= IORESOURCE_IRQ,
+		.flags	= IORESOURCE_IRQ | IORESOURCE_IRQ_LOWEDGE,
 	},
 };
 

arch/arm/mach-omap1/board-innovator.c

@@ -202,7 +202,7 @@ static struct resource innovator1510_smc91x_resources[] = {
 	[1] = {
 		.start	= OMAP1510_INT_ETHER,
 		.end	= OMAP1510_INT_ETHER,
-		.flags	= IORESOURCE_IRQ,
+		.flags	= IORESOURCE_IRQ | IORESOURCE_IRQ_HIGHEDGE,
 	},
 };
 
@@ -269,7 +269,7 @@ static struct resource innovator1610_smc91x_resources[] = {
 	[1] = {
 		.start	= OMAP_GPIO_IRQ(0),
 		.end	= OMAP_GPIO_IRQ(0),
-		.flags	= IORESOURCE_IRQ,
+		.flags	= IORESOURCE_IRQ | IORESOURCE_IRQ_LOWEDGE,
 	},
 };
 

arch/arm/mach-omap1/board-osk.c

@@ -111,7 +111,7 @@ static struct resource osk5912_smc91x_resources[] = {
 	[1] = {
 		.start	= OMAP_GPIO_IRQ(0),
 		.end	= OMAP_GPIO_IRQ(0),
-		.flags	= IORESOURCE_IRQ,
+		.flags	= IORESOURCE_IRQ | IORESOURCE_IRQ_HIGHEDGE,
 	},
 };
 

arch/arm/mach-omap1/board-perseus2.c

@@ -75,7 +75,7 @@ static struct resource smc91x_resources[] = {
 	[1] = {
 		.start	= INT_730_MPU_EXT_NIRQ,
 		.end	= 0,
-		.flags	= IORESOURCE_IRQ,
+		.flags	= IORESOURCE_IRQ | IORESOURCE_IRQ_HIGHEDGE,
 	},
 };
 

arch/arm/mach-omap1/board-voiceblue.c

@@ -117,7 +117,7 @@ static struct resource voiceblue_smc91x_resources[] = {
 	[1] = {
 		.start	= OMAP_GPIO_IRQ(8),
 		.end	= OMAP_GPIO_IRQ(8),
-		.flags	= IORESOURCE_IRQ,
+		.flags	= IORESOURCE_IRQ | IORESOURCE_IRQ_HIGHEDGE,
 	},
 };
 

arch/arm/mach-omap2/board-2430sdp.c

@@ -104,7 +104,7 @@ static struct resource sdp2430_smc91x_resources[] = {
 	[1] = {
 		.start	= OMAP_GPIO_IRQ(OMAP24XX_ETHR_GPIO_IRQ),
 		.end	= OMAP_GPIO_IRQ(OMAP24XX_ETHR_GPIO_IRQ),
-		.flags	= IORESOURCE_IRQ,
+		.flags	= IORESOURCE_IRQ | IORESOURCE_IRQ_HIGHEDGE,
 	},
 };
 

arch/arm/mach-omap2/board-apollon.c

@@ -127,7 +127,7 @@ static struct resource apollon_smc91x_resources[] = {
 	[1] = {
 		.start	= OMAP_GPIO_IRQ(APOLLON_ETHR_GPIO_IRQ),
 		.end	= OMAP_GPIO_IRQ(APOLLON_ETHR_GPIO_IRQ),
-		.flags	= IORESOURCE_IRQ,
+		.flags	= IORESOURCE_IRQ | IORESOURCE_IRQ_HIGHEDGE,
 	},
 };
 

arch/arm/mach-pxa/idp.c

@@ -54,7 +54,7 @@ static struct resource smc91x_resources[] = {
 	[1] = {
 		.start	= IRQ_GPIO(4),
 		.end	= IRQ_GPIO(4),
-		.flags	= IORESOURCE_IRQ,
+		.flags	= IORESOURCE_IRQ | IORESOURCE_IRQ_HIGHEDGE,
 	}
 };
 

arch/arm/mach-pxa/littleton.c

@@ -87,7 +87,7 @@ static struct resource smc91x_resources[] = {
 	[1] = {
 		.start	= IRQ_GPIO(mfp_to_gpio(MFP_PIN_GPIO90)),
 		.end	= IRQ_GPIO(mfp_to_gpio(MFP_PIN_GPIO90)),
-		.flags	= IORESOURCE_IRQ,
+		.flags	= IORESOURCE_IRQ | IRQF_TRIGGER_FALLING,
 	}
 };
 

arch/arm/mach-pxa/lubbock.c

@@ -196,7 +196,7 @@ static struct resource smc91x_resources[] = {
 	[1] = {
 		.start	= LUBBOCK_ETH_IRQ,
 		.end	= LUBBOCK_ETH_IRQ,
-		.flags	= IORESOURCE_IRQ,
+		.flags	= IORESOURCE_IRQ | IORESOURCE_IRQ_HIGHEDGE,
 	},
 	[2] = {
 		.name	= "smc91x-attrib",

arch/arm/mach-pxa/mainstone.c

@@ -156,7 +156,7 @@ static struct resource smc91x_resources[] = {
 	[1] = {
 		.start	= MAINSTONE_IRQ(3),
 		.end	= MAINSTONE_IRQ(3),
-		.flags	= IORESOURCE_IRQ,
+		.flags	= IORESOURCE_IRQ | IORESOURCE_IRQ_HIGHEDGE,
 	}
 };
 

arch/arm/mach-pxa/zylonite.c

@@ -47,7 +47,7 @@ static struct resource smc91x_resources[] = {
 	[1] = {
 		.start	= -1,	/* for run-time assignment */
 		.end	= -1,
-		.flags	= IORESOURCE_IRQ,
+		.flags	= IORESOURCE_IRQ | IORESOURCE_IRQ_HIGHEDGE,
 	}
 };
 

arch/arm/plat-omap/debug-devices.c

@@ -29,7 +29,7 @@ static struct resource smc91x_resources[] = {
 		.flags  = IORESOURCE_MEM,
 	},
 	[1] = {
-		.flags  = IORESOURCE_IRQ,
+		.flags  = IORESOURCE_IRQ | IORESOURCE_IRQ_LOWEDGE,
 	},
 };
 

drivers/net/smc91x.c

@@ -1775,7 +1775,8 @@ static int __init smc_findirq(void __iomem *ioaddr)
  * o  actually GRAB the irq.
  * o  GRAB the region
  */
-static int __init smc_probe(struct net_device *dev, void __iomem *ioaddr)
+static int __init smc_probe(struct net_device *dev, void __iomem *ioaddr,
+			    unsigned long irq_flags)
 {
 	struct smc_local *lp = netdev_priv(dev);
 	static int version_printed = 0;
@@ -1941,7 +1942,7 @@ static int __init smc_probe(struct net_device *dev, void __iomem *ioaddr)
 	}
 
 	/* Grab the IRQ */
-      	retval = request_irq(dev->irq, &smc_interrupt, SMC_IRQ_FLAGS, dev->name, dev);
+	retval = request_irq(dev->irq, &smc_interrupt, irq_flags, dev->name, dev);
       	if (retval)
       		goto err_out;
 
@@ -2123,8 +2124,9 @@ static void smc_release_datacs(struct platform_device *pdev, struct net_device *
 static int smc_drv_probe(struct platform_device *pdev)
 {
 	struct net_device *ndev;
-	struct resource *res;
+	struct resource *res, *ires;
 	unsigned int __iomem *addr;
+	unsigned long irq_flags = SMC_IRQ_FLAGS;
 	int ret;
 
 	res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "smc91x-regs");
@@ -2150,12 +2152,17 @@ static int smc_drv_probe(struct platform_device *pdev)
 	SET_NETDEV_DEV(ndev, &pdev->dev);
 
 	ndev->dma = (unsigned char)-1;
-	ndev->irq = platform_get_irq(pdev, 0);
-	if (ndev->irq < 0) {
+
+	ires = platform_get_resource(pdev, IORESOURCE_IRQ, 0);
+	if (!ires) {
 		ret = -ENODEV;
 		goto out_free_netdev;
 	}
 
+	ndev->irq = ires->start;
+	if (SMC_IRQ_FLAGS == -1)
+		irq_flags = ires->flags & IRQF_TRIGGER_MASK;
+
 	ret = smc_request_attrib(pdev);
 	if (ret)
 		goto out_free_netdev;
@@ -2181,7 +2188,7 @@ static int smc_drv_probe(struct platform_device *pdev)
 #endif
 
 	platform_set_drvdata(pdev, ndev);
-	ret = smc_probe(ndev, addr);
+	ret = smc_probe(ndev, addr, irq_flags);
 	if (ret != 0)
 		goto out_iounmap;
 

drivers/net/smc91x.h

@@ -54,6 +54,7 @@
 #define SMC_outw(v, a, r)	writew(v, (a) + (r))
 #define SMC_insw(a, r, p, l)	readsw((a) + (r), p, l)
 #define SMC_outsw(a, r, p, l)	writesw((a) + (r), p, l)
+#define SMC_IRQ_FLAGS		(-1)	/* from resource */
 
 #elif defined(CONFIG_BLACKFIN)
 
@@ -158,7 +159,7 @@
 #define SMC_outw(v, a, r)	writew(v, (a) + (r))
 #define SMC_outsw(a, r, p, l)	writesw((a) + (r), p, l)
 
-#define SMC_IRQ_FLAGS		(0)
+#define SMC_IRQ_FLAGS		(-1)
 
 #elif defined(CONFIG_SA1100_ASSABET)
 
@@ -177,6 +178,7 @@
 #define SMC_outb(v, a, r)	writeb(v, (a) + (r))
 #define SMC_insb(a, r, p, l)	readsb((a) + (r), p, (l))
 #define SMC_outsb(a, r, p, l)	writesb((a) + (r), p, (l))
+#define SMC_IRQ_FLAGS		(-1)	/* from resource */
 
 #elif	defined(CONFIG_MACH_LOGICPD_PXA270)
 
@@ -210,6 +212,7 @@
 #define SMC_outl(v, a, r)	writel(v, (a) + (r))
 #define SMC_insl(a, r, p, l)	readsl((a) + (r), p, l)
 #define SMC_outsl(a, r, p, l)	writesl((a) + (r), p, l)
+#define SMC_IRQ_FLAGS		(-1)	/* from resource */
 
 /* We actually can't write halfwords properly if not word aligned */
 static inline void
@@ -238,6 +241,7 @@ SMC_outw(u16 val, void __iomem *ioaddr, int reg)
 #define SMC_outsw(a, r, p, l)   outsw((a) + (r), p, l)
 #define SMC_outb(v, a, r)       writeb(v, (a) + (r))
 #define SMC_outw(v, a, r)       writew(v, (a) + (r))
+#define SMC_IRQ_FLAGS		(-1)	/* from resource */
 
 #elif	defined(CONFIG_ARCH_OMAP)
 
@@ -252,17 +256,7 @@ SMC_outw(u16 val, void __iomem *ioaddr, int reg)
 #define SMC_outw(v, a, r)	writew(v, (a) + (r))
 #define SMC_insw(a, r, p, l)	readsw((a) + (r), p, l)
 #define SMC_outsw(a, r, p, l)	writesw((a) + (r), p, l)
-
-#include <asm/mach-types.h>
-#include <asm/arch/cpu.h>
-
-#define	SMC_IRQ_FLAGS (( \
-		   machine_is_omap_h2() \
-		|| machine_is_omap_h3() \
-		|| machine_is_omap_h4() \
-		|| (machine_is_omap_innovator() && !cpu_is_omap1510()) \
-	) ? IRQF_TRIGGER_FALLING : IRQF_TRIGGER_RISING)
-
+#define	SMC_IRQ_FLAGS		(-1)	/* from resource */
 
 #elif	defined(CONFIG_SH_SH4202_MICRODEV)
 
@@ -453,8 +447,7 @@ static inline void LPD7_SMC_outsw (unsigned char* a, int r,
 #define SMC_outl(v, a, r)	writel(v, (a) + (r))
 #define SMC_insl(a, r, p, l)	readsl((a) + (r), p, l)
 #define SMC_outsl(a, r, p, l)	writesl((a) + (r), p, l)
-
-#define SMC_IRQ_FLAGS		(0)
+#define SMC_IRQ_FLAGS		(-1)	/* from resource */
 
 #else