ARM: spear: convert to MULTI_IRQ_HANDLER

Now that there is a generic IRQ handler for multiple VIC devices use it
for spear to help building multi platform kernels.
Acked-by: Viresh Kumar <viresh.kumar@st.com>
Cc: Rajeev Kumar <rajeev-dlh.kumar@st.com>
Signed-off-by: Jamie Iles <jamie@jamieiles.com>

arch/arm/Kconfig

@@ -955,6 +955,7 @@ config PLAT_SPEAR
 	select CLKSRC_MMIO
 	select GENERIC_CLOCKEVENTS
 	select HAVE_CLK
+	select MULTI_IRQ_HANDLER
 	help
 	  Support for ST's SPEAr platform (SPEAr3xx, SPEAr6xx and SPEAr13xx).
 

arch/arm/mach-spear3xx/include/mach/entry-macro.S

@@ -11,35 +11,8 @@
  * warranty of any kind, whether express or implied.
  */
 
-#include <asm/hardware/vic.h>
-#include <mach/hardware.h>
-
 		.macro	disable_fiq
 		.endm
 
-		.macro	get_irqnr_preamble, base, tmp
-		.endm
-
 		.macro	arch_ret_to_user, tmp1, tmp2
 		.endm
-
-		.macro	get_irqnr_and_base, irqnr, irqstat, base, tmp
-		ldr	\base, =VA_SPEAR3XX_ML1_VIC_BASE
-		ldr	\irqstat, [\base, #VIC_IRQ_STATUS]	@ get status
-		teq	\irqstat, #0
-		beq	1001f				@ this will set/reset
-							@ zero register
-		/*
-		 * Following code will find bit position of least significang
-		 * bit set in irqstat, using following equation
-		 * least significant bit set in n = (n & ~(n-1))
-		 */
-		sub	\tmp, \irqstat, #1		@ tmp = irqstat - 1
-		mvn	\tmp, \tmp			@ tmp = ~tmp
-		and	\irqstat, \irqstat, \tmp	@ irqstat &= tmp
-		/* Now, irqstat is = bit no. of 1st bit set in vic irq status */
-		clz	\tmp, \irqstat			@ tmp = leading zeros
-		rsb	\irqnr, \tmp, #0x1F		@ irqnr = 32 - tmp - 1
-
-1001:		/* EQ will be set if no irqs pending */
-		.endm

arch/arm/mach-spear3xx/spear300_evb.c

@@ -11,6 +11,7 @@
  * warranty of any kind, whether express or implied.
  */
 
+#include <asm/hardware/vic.h>
 #include <asm/mach/arch.h>
 #include <asm/mach-types.h>
 #include <mach/generic.h>
@@ -67,6 +68,7 @@ MACHINE_START(SPEAR300, "ST-SPEAR300-EVB")
 	.atag_offset	=	0x100,
 	.map_io		=	spear3xx_map_io,
 	.init_irq	=	spear3xx_init_irq,
+	.handle_irq	=	vic_handle_irq,
 	.timer		=	&spear3xx_timer,
 	.init_machine	=	spear300_evb_init,
 MACHINE_END

arch/arm/mach-spear3xx/spear310_evb.c

@@ -11,6 +11,7 @@
  * warranty of any kind, whether express or implied.
  */
 
+#include <asm/hardware/vic.h>
 #include <asm/mach/arch.h>
 #include <asm/mach-types.h>
 #include <mach/generic.h>
@@ -73,6 +74,7 @@ MACHINE_START(SPEAR310, "ST-SPEAR310-EVB")
 	.atag_offset	=	0x100,
 	.map_io		=	spear3xx_map_io,
 	.init_irq	=	spear3xx_init_irq,
+	.handle_irq	=	vic_handle_irq,
 	.timer		=	&spear3xx_timer,
 	.init_machine	=	spear310_evb_init,
 MACHINE_END

arch/arm/mach-spear3xx/spear320_evb.c

@@ -11,6 +11,7 @@
  * warranty of any kind, whether express or implied.
  */
 
+#include <asm/hardware/vic.h>
 #include <asm/mach/arch.h>
 #include <asm/mach-types.h>
 #include <mach/generic.h>
@@ -71,6 +72,7 @@ MACHINE_START(SPEAR320, "ST-SPEAR320-EVB")
 	.atag_offset	=	0x100,
 	.map_io		=	spear3xx_map_io,
 	.init_irq	=	spear3xx_init_irq,
+	.handle_irq	=	vic_handle_irq,
 	.timer		=	&spear3xx_timer,
 	.init_machine	=	spear320_evb_init,
 MACHINE_END

arch/arm/mach-spear6xx/include/mach/entry-macro.S

@@ -11,44 +11,8 @@
  * warranty of any kind, whether express or implied.
  */
 
-#include <asm/hardware/vic.h>
-#include <mach/hardware.h>
-
 		.macro	disable_fiq
 		.endm
 
-		.macro	get_irqnr_preamble, base, tmp
-		.endm
-
 		.macro	arch_ret_to_user, tmp1, tmp2
 		.endm
-
-		.macro	get_irqnr_and_base, irqnr, irqstat, base, tmp
-		ldr	\base, =VA_SPEAR6XX_CPU_VIC_PRI_BASE
-		ldr	\irqstat, [\base, #VIC_IRQ_STATUS]	@ get status
-		mov	\irqnr, #0
-		teq	\irqstat, #0
-		bne	1001f
-		ldr	\base, =VA_SPEAR6XX_CPU_VIC_SEC_BASE
-		ldr	\irqstat, [\base, #VIC_IRQ_STATUS]	@ get status
-		teq	\irqstat, #0
-		beq	1002f				@ this will set/reset
-							@ zero register
-		mov	\irqnr, #32
-1001:
-		/*
-		 * Following code will find bit position of least significang
-		 * bit set in irqstat, using following equation
-		 * least significant bit set in n = (n & ~(n-1))
-		 */
-		sub	\tmp, \irqstat, #1		@ tmp = irqstat - 1
-		mvn	\tmp, \tmp			@ tmp = ~tmp
-		and	\irqstat, \irqstat, \tmp	@ irqstat &= tmp
-		/* Now, irqstat is = bit no. of 1st bit set in vic irq status */
-		clz	\tmp, \irqstat			@ tmp = leading zeros
-
-		rsb	\tmp, \tmp, #0x1F		@ tmp = 32 - tmp - 1
-		add	\irqnr, \irqnr, \tmp
-
-1002:		/* EQ will be set if no irqs pending */
-		.endm

arch/arm/mach-spear6xx/spear600_evb.c

@@ -11,6 +11,7 @@
  * warranty of any kind, whether express or implied.
  */
 
+#include <asm/hardware/vic.h>
 #include <asm/mach/arch.h>
 #include <asm/mach-types.h>
 #include <mach/generic.h>
@@ -46,6 +47,7 @@ MACHINE_START(SPEAR600, "ST-SPEAR600-EVB")
 	.atag_offset	=	0x100,
 	.map_io		=	spear6xx_map_io,
 	.init_irq	=	spear6xx_init_irq,
+	.handle_irq	=	vic_handle_irq,
 	.timer		=	&spear6xx_timer,
 	.init_machine	=	spear600_evb_init,
 MACHINE_END