From: Gabor Juhos <juhosg@openwrt.org>
Date: Thu, 18 Mar 2010 19:18:50 +0000 (+0000)
Subject: ar71xx: use set_irq_chained_handler for the PCI IRQs
X-Git-Url: http://git.lede-project.org./?a=commitdiff_plain;h=4d32460353ea7551271b0168eea2c42187ece460;p=openwrt%2Fstaging%2Fldir.git

ar71xx: use set_irq_chained_handler for the PCI IRQs

SVN-Revision: 20280
---

diff --git a/target/linux/ar71xx/files/arch/mips/ar71xx/irq.c b/target/linux/ar71xx/files/arch/mips/ar71xx/irq.c
index 25d643d035..d5d9a6806a 100644
--- a/target/linux/ar71xx/files/arch/mips/ar71xx/irq.c
+++ b/target/linux/ar71xx/files/arch/mips/ar71xx/irq.c
@@ -1,7 +1,7 @@
 /*
  *  Atheros AR71xx SoC specific interrupt handling
  *
- *  Copyright (C) 2008-2009 Gabor Juhos <juhosg@openwrt.org>
+ *  Copyright (C) 2008-2010 Gabor Juhos <juhosg@openwrt.org>
  *  Copyright (C) 2008 Imre Kaloz <kaloz@openwrt.org>
  *
  *  Parts of this file are based on Atheros' 2.6.15 BSP
@@ -21,10 +21,8 @@
 
 #include <asm/mach-ar71xx/ar71xx.h>
 
-static void (* ar71xx_ip2_irq_handler)(void) = spurious_interrupt;
-
 #ifdef CONFIG_PCI
-static void ar71xx_pci_irq_dispatch(void)
+static void ar71xx_pci_irq_handler(unsigned int irq, struct irq_desc *desc)
 {
 	u32 pending;
 
@@ -32,16 +30,16 @@ static void ar71xx_pci_irq_dispatch(void)
 		  ar71xx_reset_rr(AR71XX_RESET_REG_PCI_INT_ENABLE);
 
 	if (pending & PCI_INT_DEV0)
-		do_IRQ(AR71XX_PCI_IRQ_DEV0);
+		generic_handle_irq(AR71XX_PCI_IRQ_DEV0);
 
 	else if (pending & PCI_INT_DEV1)
-		do_IRQ(AR71XX_PCI_IRQ_DEV1);
+		generic_handle_irq(AR71XX_PCI_IRQ_DEV1);
 
 	else if (pending & PCI_INT_DEV2)
-		do_IRQ(AR71XX_PCI_IRQ_DEV2);
+		generic_handle_irq(AR71XX_PCI_IRQ_DEV2);
 
 	else if (pending & PCI_INT_CORE)
-		do_IRQ(AR71XX_PCI_IRQ_CORE);
+		generic_handle_irq(AR71XX_PCI_IRQ_CORE);
 
 	else
 		spurious_interrupt();
@@ -74,17 +72,10 @@ static struct irq_chip ar71xx_pci_irq_chip = {
 	.mask_ack	= ar71xx_pci_irq_mask,
 };
 
-static struct irqaction ar71xx_pci_irqaction = {
-	.handler	= no_action,
-	.name		= "cascade [AR71XX PCI]",
-};
-
 static void __init ar71xx_pci_irq_init(void)
 {
 	int i;
 
-	ar71xx_ip2_irq_handler = ar71xx_pci_irq_dispatch;
-
 	ar71xx_reset_wr(AR71XX_RESET_REG_PCI_INT_ENABLE, 0);
 	ar71xx_reset_wr(AR71XX_RESET_REG_PCI_INT_STATUS, 0);
 
@@ -95,10 +86,10 @@ static void __init ar71xx_pci_irq_init(void)
 					 handle_level_irq);
 	}
 
-	setup_irq(AR71XX_CPU_IRQ_IP2, &ar71xx_pci_irqaction);
+	set_irq_chained_handler(AR71XX_CPU_IRQ_IP2, ar71xx_pci_irq_handler);
 }
 
-static void ar724x_pci_irq_dispatch(void)
+static void ar724x_pci_irq_handler(unsigned int irq, struct irq_desc *desc)
 {
 	u32 pending;
 
@@ -106,7 +97,7 @@ static void ar724x_pci_irq_dispatch(void)
 		  ar724x_pci_rr(AR724X_PCI_REG_INT_MASK);
 
 	if (pending & AR724X_PCI_INT_DEV0)
-		do_IRQ(AR71XX_PCI_IRQ_DEV0);
+		generic_handle_irq(AR71XX_PCI_IRQ_DEV0);
 
 	else
 		spurious_interrupt();
@@ -151,11 +142,6 @@ static struct irq_chip ar724x_pci_irq_chip = {
 	.mask_ack	= ar724x_pci_irq_mask,
 };
 
-static struct irqaction ar724x_pci_irqaction = {
-	.handler	= no_action,
-	.name		= "cascade [AR724X PCI]",
-};
-
 static void __init ar724x_pci_irq_init(void)
 {
 	u32 t;
@@ -167,8 +153,6 @@ static void __init ar724x_pci_irq_init(void)
 		return;
 	}
 
-	ar71xx_ip2_irq_handler = ar724x_pci_irq_dispatch;
-
 	ar724x_pci_wr(AR724X_PCI_REG_INT_MASK, 0);
 	ar724x_pci_wr(AR724X_PCI_REG_INT_STATUS, 0);
 
@@ -179,7 +163,7 @@ static void __init ar724x_pci_irq_init(void)
 					 handle_level_irq);
 	}
 
-	setup_irq(AR71XX_CPU_IRQ_IP2, &ar724x_pci_irqaction);
+	set_irq_chained_handler(AR71XX_CPU_IRQ_IP2, ar724x_pci_irq_handler);
 }
 #else
 static inline void ar71xx_pci_irq_init(void) {};
@@ -366,11 +350,6 @@ static void __init ar71xx_misc_irq_init(void)
 	setup_irq(AR71XX_CPU_IRQ_MISC, &ar71xx_misc_irqaction);
 }
 
-static void ar913x_wmac_irq_dispatch(void)
-{
-	do_IRQ(AR71XX_CPU_IRQ_IP2);
-}
-
 asmlinkage void plat_irq_dispatch(void)
 {
 	unsigned long pending;
@@ -381,7 +360,7 @@ asmlinkage void plat_irq_dispatch(void)
 		do_IRQ(AR71XX_CPU_IRQ_TIMER);
 
 	else if (pending & STATUSF_IP2)
-		ar71xx_ip2_irq_handler();
+		do_IRQ(AR71XX_CPU_IRQ_IP2);
 
 	else if (pending & STATUSF_IP4)
 		do_IRQ(AR71XX_CPU_IRQ_GE0);
@@ -416,12 +395,8 @@ void __init arch_init_irq(void)
 	case AR71XX_SOC_AR7240:
 		ar724x_pci_irq_init();
 		break;
-	case AR71XX_SOC_AR9130:
-	case AR71XX_SOC_AR9132:
-		ar71xx_ip2_irq_handler = ar913x_wmac_irq_dispatch;
-		break;
 	default:
-		BUG();
+		break;
 	}
 
 	ar71xx_gpio_irq_init();