MIPS: EMMA2RH: Remove emma2rh_irq_base global variable

Let's use immediate value, instead.  This also saves memory footprint,
and probably a little bit faster.
Signed-off-by: Shinya Kuribayashi <shinya.kuribayashi@necel.com>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>

arch/mips/emma/common/irq_emma2rh.c

@@ -41,19 +41,17 @@
 /* number of total irqs supported by EMMA2RH */
 #define	NUM_EMMA2RH_IRQ		96
 
-static int emma2rh_irq_base = -1;
-
 void ll_emma2rh_irq_enable(int);
 void ll_emma2rh_irq_disable(int);
 
 static void emma2rh_irq_enable(unsigned int irq)
 {
-	ll_emma2rh_irq_enable(irq - emma2rh_irq_base);
+	ll_emma2rh_irq_enable(irq - EMMA2RH_IRQ_BASE);
 }
 
 static void emma2rh_irq_disable(unsigned int irq)
 {
-	ll_emma2rh_irq_disable(irq - emma2rh_irq_base);
+	ll_emma2rh_irq_disable(irq - EMMA2RH_IRQ_BASE);
 }
 
 struct irq_chip emma2rh_irq_controller = {
@@ -64,15 +62,14 @@ struct irq_chip emma2rh_irq_controller = {
 	.unmask = emma2rh_irq_enable,
 };
 
-void emma2rh_irq_init(u32 irq_base)
+void emma2rh_irq_init(void)
 {
 	u32 i;
 
-	for (i = irq_base; i < irq_base + NUM_EMMA2RH_IRQ; i++)
-		set_irq_chip_and_handler(i, &emma2rh_irq_controller,
+	for (i = 0; i < NUM_EMMA2RH_IRQ; i++)
+		set_irq_chip_and_handler(EMMA2RH_IRQ_BASE + i,
+					 &emma2rh_irq_controller,
 					 handle_level_irq);
-
-	emma2rh_irq_base = irq_base;
 }
 
 void ll_emma2rh_irq_enable(int emma2rh_irq)

arch/mips/emma/markeins/irq.c

@@ -55,7 +55,7 @@
 
 extern void emma2rh_sw_irq_init(u32 base);
 extern void emma2rh_gpio_irq_init(u32 base);
-extern void emma2rh_irq_init(u32 base);
+extern void emma2rh_irq_init(void);
 extern void emma2rh_irq_dispatch(void);
 
 static struct irqaction irq_cascade = {
@@ -102,7 +102,7 @@ void __init arch_init_irq(void)
 	emma2rh_out32(EMMA2RH_GPIO_INT_ST, ~GPIO_PCI);
 
 	/* init all controllers */
-	emma2rh_irq_init(EMMA2RH_IRQ_BASE);
+	emma2rh_irq_init();
 	emma2rh_sw_irq_init(EMMA2RH_SW_IRQ_BASE);
 	emma2rh_gpio_irq_init(EMMA2RH_GPIO_IRQ_BASE);
 	mips_cpu_irq_init();