[POWERPC] Update mpc7448hpc2 board irq support using device tree

The patch rewrites mpc7448hpc2 board irq support according to the new
mpic device tree interface.

Signed-off-by: Roy Zang	<tie-fei.zang@freescale.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>

1 files changed, 12 insertions, 9 deletions

diff --git a/arch/powerpc/sysdev/tsi108_pci.c b/arch/powerpc/sysdev/tsi108_pci.c
index 3265d54c82e..2ab06ed3ae7 100644
--- a/arch/powerpc/sysdev/tsi108_pci.c
+++ b/arch/powerpc/sysdev/tsi108_pci.c
@@ -26,7 +26,6 @@
 #include <linux/irq.h>
 #include <linux/interrupt.h>
 
-
 #include <asm/byteorder.h>
 #include <asm/io.h>
 #include <asm/irq.h>
@@ -228,7 +227,7 @@ int __init tsi108_setup_pci(struct device_node *dev)
 
         (hose)->ops = &tsi108_direct_pci_ops;
 
-        printk(KERN_INFO "Found tsi108 PCI host bridge at 0x%08lx. "
+        printk(KERN_INFO "Found tsi108 PCI host bridge at 0x%08x. "
                "Firmware bus number: %d->%d\n",
                rsrc.start, hose->first_busno, hose->last_busno);
 
@@ -278,7 +277,7 @@ static void init_pci_source(void)
         mb();
 }
 
-static inline int get_pci_source(void)
+static inline unsigned int get_pci_source(void)
 {
         u_int temp = 0;
         int irq = -1;
@@ -371,12 +370,12 @@ static void tsi108_pci_irq_end(u_int irq)
  * Interrupt controller descriptor for cascaded PCI interrupt controller.
  */
 
-struct hw_interrupt_type tsi108_pci_irq = {
+static struct irq_chip tsi108_pci_irq = {
         .typename = "tsi108_PCI_int",
-        .enable = tsi108_pci_irq_enable,
-        .disable = tsi108_pci_irq_disable,
+        .mask = tsi108_pci_irq_disable,
         .ack = tsi108_pci_irq_ack,
         .end = tsi108_pci_irq_end,
+        .unmask = tsi108_pci_irq_enable,
 };
 
 /*
@@ -399,14 +398,18 @@ void __init tsi108_pci_int_init(void)
         DBG("Tsi108_pci_int_init: initializing PCI interrupts\n");
 
         for (i = 0; i < NUM_PCI_IRQS; i++) {
-                irq_desc[i + IRQ_PCI_INTAD_BASE].handler = &tsi108_pci_irq;
+                irq_desc[i + IRQ_PCI_INTAD_BASE].chip = &tsi108_pci_irq;
                 irq_desc[i + IRQ_PCI_INTAD_BASE].status |= IRQ_LEVEL;
         }
 
         init_pci_source();
 }
 
-int tsi108_irq_cascade(struct pt_regs *regs, void *unused)
+void tsi108_irq_cascade(unsigned int irq, struct irq_desc *desc,
+                            struct pt_regs *regs)
 {
-        return get_pci_source();
+        unsigned int cascade_irq = get_pci_source();
+        if (cascade_irq != NO_IRQ)
+                generic_handle_irq(cascade_irq, regs);
+        desc->chip->eoi(irq);
 }