[MIPS] Pb1200/DBAu1200 code style cleanup

[linux-2.6-omap-h63xx.git] / arch / mips / au1000 / pb1200 / irqmap.c

diff --git a/arch/mips/au1000/pb1200/irqmap.c b/arch/mips/au1000/pb1200/irqmap.c
index 8fcd0df86f93248e4e7a0fdf1eff33fd70647bae..2a505ad8715b482b635a47e5ce4a28f88a59945b 100644 (file)
--- a/arch/mips/au1000/pb1200/irqmap.c
+++ b/arch/mips/au1000/pb1200/irqmap.c
@@ -22,26 +22,10 @@
  *  with this program; if not, write  to the Free Software Foundation, Inc.,
  *  675 Mass Ave, Cambridge, MA 02139, USA.
  */
-#include <linux/errno.h>
+
 #include <linux/init.h>
-#include <linux/irq.h>
-#include <linux/kernel_stat.h>
-#include <linux/module.h>
-#include <linux/signal.h>
-#include <linux/sched.h>
-#include <linux/types.h>
 #include <linux/interrupt.h>
-#include <linux/ioport.h>
-#include <linux/timex.h>
-#include <linux/slab.h>
-#include <linux/random.h>
-#include <linux/delay.h>
-#include <linux/bitops.h>
-
-#include <asm/bootinfo.h>
-#include <asm/io.h>
-#include <asm/mipsregs.h>
-#include <asm/system.h>
+
 #include <asm/mach-au1x00/au1000.h>
 
 #ifdef CONFIG_MIPS_PB1200
@@ -55,25 +39,25 @@
 #endif
 
 struct au1xxx_irqmap __initdata au1xxx_irq_map[] = {
-       { AU1000_GPIO_7, INTC_INT_LOW_LEVEL, 0 }, // This is exteranl interrupt cascade
+       /* This is external interrupt cascade */
+       { AU1000_GPIO_7, INTC_INT_LOW_LEVEL, 0 },
 };
 
 int __initdata au1xxx_nr_irqs = ARRAY_SIZE(au1xxx_irq_map);
 
 /*
- *     Support for External interrupts on the PbAu1200 Development platform.
+ * Support for External interrupts on the Pb1200 Development platform.
  */
-static volatile int pb1200_cascade_en=0;
+static volatile int pb1200_cascade_en;
 
-irqreturn_t pb1200_cascade_handler( int irq, void *dev_id)
+irqreturn_t pb1200_cascade_handler(int irq, void *dev_id)
 {
        unsigned short bisr = bcsr->int_status;
        int extirq_nr = 0;
 
-       /* Clear all the edge interrupts. This has no effect on level */
+       /* Clear all the edge interrupts. This has no effect on level. */
        bcsr->int_status = bisr;
-       for( ; bisr; bisr &= (bisr-1) )
-       {
+       for ( ; bisr; bisr &= bisr - 1) {
                extirq_nr = PB1200_INT_BEGIN + __ffs(bisr);
                /* Ack and dispatch IRQ */
                do_IRQ(extirq_nr);
@@ -84,26 +68,20 @@ irqreturn_t pb1200_cascade_handler( int irq, void *dev_id)
 
 inline void pb1200_enable_irq(unsigned int irq_nr)
 {
-       bcsr->intset_mask = 1<<(irq_nr - PB1200_INT_BEGIN);
-       bcsr->intset = 1<<(irq_nr - PB1200_INT_BEGIN);
+       bcsr->intset_mask = 1 << (irq_nr - PB1200_INT_BEGIN);
+       bcsr->intset = 1 << (irq_nr - PB1200_INT_BEGIN);
 }
 
 inline void pb1200_disable_irq(unsigned int irq_nr)
 {
-       bcsr->intclr_mask = 1<<(irq_nr - PB1200_INT_BEGIN);
-       bcsr->intclr = 1<<(irq_nr - PB1200_INT_BEGIN);
+       bcsr->intclr_mask = 1 << (irq_nr - PB1200_INT_BEGIN);
+       bcsr->intclr = 1 << (irq_nr - PB1200_INT_BEGIN);
 }
 
 static unsigned int pb1200_setup_cascade(void)
 {
-       int err;
-
-       err = request_irq(AU1000_GPIO_7, &pb1200_cascade_handler,
-                         0, "Pb1200 Cascade", &pb1200_cascade_handler);
-       if (err)
-               return err;
-
-       return 0;
+       return request_irq(AU1000_GPIO_7, &pb1200_cascade_handler,
+                          0, "Pb1200 Cascade", &pb1200_cascade_handler);
 }
 
 static unsigned int pb1200_startup_irq(unsigned int irq)
@@ -148,23 +126,23 @@ void _board_init_irq(void)
        unsigned int irq;
 
 #ifdef CONFIG_MIPS_PB1200
-       /* We have a problem with CPLD rev3. Enable a workaround */
+       /* We have a problem with CPLD rev 3. */
        if (((bcsr->whoami & BCSR_WHOAMI_CPLD) >> 4) <= 3) {
-               printk("\nWARNING!!!\n");
-               printk("\nWARNING!!!\n");
-               printk("\nWARNING!!!\n");
-               printk("\nWARNING!!!\n");
-               printk("\nWARNING!!!\n");
-               printk("\nWARNING!!!\n");
-               printk("Pb1200 must be at CPLD rev4. Please have Pb1200\n");
-               printk("updated to latest revision. This software will not\n");
-               printk("work on anything less than CPLD rev4\n");
-               printk("\nWARNING!!!\n");
-               printk("\nWARNING!!!\n");
-               printk("\nWARNING!!!\n");
-               printk("\nWARNING!!!\n");
-               printk("\nWARNING!!!\n");
-               printk("\nWARNING!!!\n");
+               printk(KERN_ERR "WARNING!!!\n");
+               printk(KERN_ERR "WARNING!!!\n");
+               printk(KERN_ERR "WARNING!!!\n");
+               printk(KERN_ERR "WARNING!!!\n");
+               printk(KERN_ERR "WARNING!!!\n");
+               printk(KERN_ERR "WARNING!!!\n");
+               printk(KERN_ERR "Pb1200 must be at CPLD rev 4. Please have Pb1200\n");
+               printk(KERN_ERR "updated to latest revision. This software will\n");
+               printk(KERN_ERR "not work on anything less than CPLD rev 4.\n");
+               printk(KERN_ERR "WARNING!!!\n");
+               printk(KERN_ERR "WARNING!!!\n");
+               printk(KERN_ERR "WARNING!!!\n");
+               printk(KERN_ERR "WARNING!!!\n");
+               printk(KERN_ERR "WARNING!!!\n");
+               printk(KERN_ERR "WARNING!!!\n");
                panic("Game over.  Your score is 0.");
        }
 #endif
@@ -177,6 +155,6 @@ void _board_init_irq(void)
 
        /*
         * GPIO_7 can not be hooked here, so it is hooked upon first
-        * request of any source attached to the cascade
+        * request of any source attached to the cascade.
         */
 }