ARM: s3c24xx: convert to sparse-irq

As a final bit of preparation for converting to ARCH_MULTIPLATFORM,
change the interrupt handling for s3c24xx to use sparse IRQs.

Since the number of possible interrupts is already fixed and relatively
small per chip, just make it use all legacy interrupts preallocated
using the .nr_irqs field in the machine descriptor, rather than actually
allocating domains on the fly.
Acked-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>

arch/arm/Kconfig

@@ -444,8 +444,10 @@ config ARCH_S3C24XX
 	select CLKSRC_SAMSUNG_PWM
 	select GPIO_SAMSUNG
 	select GPIOLIB
+	select IRQ_DOMAIN
 	select S3C2410_WATCHDOG
 	select SAMSUNG_ATAGS
+	select SPARSE_IRQ
 	select USE_OF
 	select WATCHDOG
 	help

arch/arm/mach-s3c/bast-ide.c

@@ -20,7 +20,7 @@
 #include <asm/mach/irq.h>
 
 #include "map.h"
-#include <mach/irqs.h>
+#include "irqs.h"
 
 #include "bast.h"
 

arch/arm/mach-s3c/bast-irq.c

@@ -16,7 +16,7 @@
 #include <asm/mach/irq.h>
 
 #include "regs-irq.h"
-#include <mach/irqs.h>
+#include "irqs.h"
 
 #include "bast.h"
 

arch/arm/mach-s3c/dev-audio-s3c64xx.c

@@ -10,7 +10,7 @@
 #include <linux/gpio.h>
 #include <linux/export.h>
 
-#include <mach/irqs.h>
+#include "irqs.h"
 #include "map.h"
 
 #include "devs.h"

arch/arm/mach-s3c/dev-uart-s3c64xx.c

@@ -16,7 +16,7 @@
 #include <asm/mach/arch.h>
 #include <asm/mach/irq.h>
 #include "map.h"
-#include <mach/irqs.h>
+#include "irqs.h"
 
 #include "devs.h"
 

arch/arm/mach-s3c/devs.c

@@ -38,7 +38,7 @@
 #include <asm/mach/map.h>
 #include <asm/mach/irq.h>
 
-#include <mach/irqs.h>
+#include "irqs.h"
 #include "map.h"
 #include "gpio-samsung.h"
 #include "gpio-cfg.h"

arch/arm/mach-s3c/gpio-samsung.c

@@ -26,7 +26,7 @@
 
 #include <asm/irq.h>
 
-#include <mach/irqs.h>
+#include "irqs.h"
 #include "map.h"
 #include "regs-gpio.h"
 #include "gpio-samsung.h"

arch/arm/mach-s3c/irq-s3c24xx.c

@@ -26,7 +26,7 @@
 #include <asm/exception.h>
 #include <asm/mach/irq.h>
 
-#include <mach/irqs.h>
+#include "irqs.h"
 #include "regs-irq.h"
 #include "regs-gpio.h"
 

arch/arm/mach-s3c/include/mach/irqs-s3c24xx.h → arch/arm/mach-s3c/irqs-s3c24xx.h

@@ -108,6 +108,8 @@
 #define IRQ_TC			S3C2410_IRQSUB(9)
 #define IRQ_ADC			S3C2410_IRQSUB(10)
 
+#define NR_IRQS_S3C2410		(S3C2410_IRQSUB(10) + 1)
+
 /* extra irqs for s3c2412 */
 
 #define IRQ_S3C2412_CFSDI	S3C2410_IRQ(21)
@@ -115,6 +117,7 @@
 #define IRQ_S3C2412_SDI		S3C2410_IRQSUB(13)
 #define IRQ_S3C2412_CF		S3C2410_IRQSUB(14)
 
+#define NR_IRQS_S3C2412		(S3C2410_IRQSUB(14) + 1)
 
 #define IRQ_S3C2416_EINT8t15	S3C2410_IRQ(5)
 #define IRQ_S3C2416_DMA		S3C2410_IRQ(17)
@@ -146,13 +149,20 @@
 #define IRQ_S3C2416_I2S0	S3C2416_IRQ(6)
 #define IRQ_S3C2416_I2S1	S3C2416_IRQ(7)
 
-/* extra irqs for s3c2440 */
+#define NR_IRQS_S3C2416		(S3C2416_IRQ(7) + 1)
+
+/* extra irqs for s3c2440/s3c2442 */
 
 #define IRQ_S3C2440_CAM_C	S3C2410_IRQSUB(11)	/* S3C2443 too */
 #define IRQ_S3C2440_CAM_P	S3C2410_IRQSUB(12)	/* S3C2443 too */
+
+#define NR_IRQS_S3C2442		(S3C2410_IRQSUB(12) + 1)
+
 #define IRQ_S3C2440_WDT		S3C2410_IRQSUB(13)
 #define IRQ_S3C2440_AC97	S3C2410_IRQSUB(14)
 
+#define NR_IRQS_S3C2440		(S3C2410_IRQSUB(14) + 1)
+
 /* irqs for s3c2443 */
 
 #define IRQ_S3C2443_DMA		S3C2410_IRQ(17)		/* IRQ_DMA1 */
@@ -186,11 +196,7 @@
 #define IRQ_S3C2443_WDT		S3C2410_IRQSUB(27)
 #define IRQ_S3C2443_AC97	S3C2410_IRQSUB(28)
 
-#if defined(CONFIG_CPU_S3C2416)
-#define NR_IRQS (IRQ_S3C2416_I2S1 + 1)
-#else
-#define NR_IRQS (IRQ_S3C2443_AC97 + 1)
-#endif
+#define NR_IRQS_S3C2443		(S3C2410_IRQSUB(28) + 1)
 
 /* compatibility define. */
 #define IRQ_UART3		IRQ_S3C2443_UART3

arch/arm/mach-s3c/mach-amlm5900.c

@@ -239,7 +239,9 @@ static void __init amlm5900_init(void)
 
 MACHINE_START(AML_M5900, "AML_M5900")
 	.atag_offset	= 0x100,
+	.nr_irqs	= NR_IRQS_S3C2410,
 	.map_io		= amlm5900_map_io,
+	.nr_irqs	= NR_IRQS_S3C2410,
 	.init_irq	= s3c2410_init_irq,
 	.init_machine	= amlm5900_init,
 	.init_time	= amlm5900_init_time,

arch/arm/mach-s3c/mach-anubis.c

@@ -414,6 +414,7 @@ static void __init anubis_init(void)
 MACHINE_START(ANUBIS, "Simtec-Anubis")
 	/* Maintainer: Ben Dooks <ben@simtec.co.uk> */
 	.atag_offset	= 0x100,
+	.nr_irqs	= NR_IRQS_S3C2440,
 	.map_io		= anubis_map_io,
 	.init_machine	= anubis_init,
 	.init_irq	= s3c2440_init_irq,

arch/arm/mach-s3c/mach-anw6410.c

@@ -40,7 +40,7 @@
 
 #include "devs.h"
 #include "cpu.h"
-#include <mach/irqs.h>
+#include "irqs.h"
 #include "regs-gpio.h"
 #include "gpio-samsung.h"
 

arch/arm/mach-s3c/mach-at2440evb.c

@@ -225,6 +225,7 @@ static void __init at2440evb_init(void)
 
 MACHINE_START(AT2440EVB, "AT2440EVB")
 	.atag_offset	= 0x100,
+	.nr_irqs	= NR_IRQS_S3C2440,
 	.map_io		= at2440evb_map_io,
 	.init_machine	= at2440evb_init,
 	.init_irq	= s3c2440_init_irq,

arch/arm/mach-s3c/mach-bast.c

@@ -575,6 +575,7 @@ static void __init bast_init(void)
 MACHINE_START(BAST, "Simtec-BAST")
 	/* Maintainer: Ben Dooks <ben@simtec.co.uk> */
 	.atag_offset	= 0x100,
+	.nr_irqs	= NR_IRQS_S3C2410,
 	.map_io		= bast_map_io,
 	.init_irq	= s3c2410_init_irq,
 	.init_machine	= bast_init,

arch/arm/mach-s3c/mach-crag6410-module.c

@@ -28,7 +28,7 @@
 #include <linux/platform_data/spi-s3c64xx.h>
 
 #include "cpu.h"
-#include <mach/irqs.h>
+#include "irqs.h"
 
 #include "crag6410.h"
 

arch/arm/mach-s3c/mach-crag6410.c

@@ -47,7 +47,7 @@
 #include "map.h"
 #include "regs-gpio.h"
 #include "gpio-samsung.h"
-#include <mach/irqs.h>
+#include "irqs.h"
 
 #include "fb.h"
 #include "sdhci.h"

arch/arm/mach-s3c/mach-gta02.c

@@ -572,6 +572,7 @@ static void __init gta02_init_time(void)
 MACHINE_START(NEO1973_GTA02, "GTA02")
 	/* Maintainer: Nelson Castillo <arhuaco@freaks-unidos.net> */
 	.atag_offset	= 0x100,
+	.nr_irqs	= NR_IRQS_S3C2442,
 	.map_io		= gta02_map_io,
 	.init_irq	= s3c2442_init_irq,
 	.init_machine	= gta02_machine_init,

arch/arm/mach-s3c/mach-h1940.c

@@ -793,6 +793,7 @@ static void __init h1940_init(void)
 MACHINE_START(H1940, "IPAQ-H1940")
 	/* Maintainer: Ben Dooks <ben-linux@fluff.org> */
 	.atag_offset	= 0x100,
+	.nr_irqs	= NR_IRQS_S3C2410,
 	.map_io		= h1940_map_io,
 	.reserve	= h1940_reserve,
 	.init_irq	= s3c2410_init_irq,

arch/arm/mach-s3c/mach-hmt.c

@@ -26,7 +26,7 @@
 
 #include <video/samsung_fimd.h>
 #include "map.h"
-#include <mach/irqs.h>
+#include "irqs.h"
 
 #include <asm/irq.h>
 #include <asm/mach-types.h>

arch/arm/mach-s3c/mach-jive.c

@@ -677,7 +677,7 @@ static void __init jive_machine_init(void)
 MACHINE_START(JIVE, "JIVE")
 	/* Maintainer: Ben Dooks <ben-linux@fluff.org> */
 	.atag_offset	= 0x100,
-
+	.nr_irqs	= NR_IRQS_S3C2412,
 	.init_irq	= s3c2412_init_irq,
 	.map_io		= jive_map_io,
 	.init_machine	= jive_machine_init,

arch/arm/mach-s3c/mach-mini2440.c

@@ -35,7 +35,7 @@
 
 #include "regs-gpio.h"
 #include <linux/platform_data/leds-s3c24xx.h>
-#include <mach/irqs.h>
+#include "irqs.h"
 #include "gpio-samsung.h"
 #include <linux/platform_data/mtd-nand-s3c2410.h>
 #include <linux/platform_data/i2c-s3c2410.h>
@@ -789,6 +789,7 @@ static void __init mini2440_init(void)
 MACHINE_START(MINI2440, "MINI2440")
 	/* Maintainer: Michel Pollet <buserror@gmail.com> */
 	.atag_offset	= 0x100,
+	.nr_irqs	= NR_IRQS_S3C2440,
 	.map_io		= mini2440_map_io,
 	.init_machine	= mini2440_init,
 	.init_irq	= s3c2440_init_irq,

arch/arm/mach-s3c/mach-mini6410.c

@@ -35,7 +35,7 @@
 #include <linux/platform_data/mmc-sdhci-s3c.h>
 #include "sdhci.h"
 #include <linux/platform_data/touchscreen-s3c2410.h>
-#include <mach/irqs.h>
+#include "irqs.h"
 
 #include <video/platform_lcd.h>
 #include <video/samsung_fimd.h>

arch/arm/mach-s3c/mach-n30.c

@@ -656,6 +656,7 @@ MACHINE_START(N30, "Acer-N30")
 				Ben Dooks <ben-linux@fluff.org>
 	*/
 	.atag_offset	= 0x100,
+	.nr_irqs	= NR_IRQS_S3C2410,
 	.init_time	= n30_init_time,
 	.init_machine	= n30_init,
 	.init_irq	= s3c2410_init_irq,
@@ -666,6 +667,7 @@ MACHINE_START(N35, "Acer-N35")
 	/* Maintainer: Christer Weinigel <christer@weinigel.se>
 	*/
 	.atag_offset	= 0x100,
+	.nr_irqs	= NR_IRQS_S3C2410,
 	.init_time	= n30_init_time,
 	.init_machine	= n30_init,
 	.init_irq	= s3c2410_init_irq,

arch/arm/mach-s3c/mach-ncp.c

@@ -24,7 +24,7 @@
 #include <asm/mach/map.h>
 #include <asm/mach/irq.h>
 
-#include <mach/irqs.h>
+#include "irqs.h"
 #include "map.h"
 
 #include <asm/irq.h>

arch/arm/mach-s3c/mach-nexcoder.c

@@ -154,6 +154,7 @@ static void __init nexcoder_init(void)
 MACHINE_START(NEXCODER_2440, "NexVision - Nexcoder 2440")
 	/* Maintainer: Guillaume GOURAT <guillaume.gourat@nexvision.tv> */
 	.atag_offset	= 0x100,
+	.nr_irqs	= NR_IRQS_S3C2440,
 	.map_io		= nexcoder_map_io,
 	.init_machine	= nexcoder_init,
 	.init_irq	= s3c2440_init_irq,

arch/arm/mach-s3c/mach-osiris.c

@@ -397,6 +397,7 @@ static void __init osiris_init(void)
 MACHINE_START(OSIRIS, "Simtec-OSIRIS")
 	/* Maintainer: Ben Dooks <ben@simtec.co.uk> */
 	.atag_offset	= 0x100,
+	.nr_irqs	= NR_IRQS_S3C2440,
 	.map_io		= osiris_map_io,
 	.init_irq	= s3c2440_init_irq,
 	.init_machine	= osiris_init,

arch/arm/mach-s3c/mach-otom.c

@@ -116,6 +116,7 @@ static void __init otom11_init(void)
 MACHINE_START(OTOM, "Nex Vision - Otom 1.1")
 	/* Maintainer: Guillaume GOURAT <guillaume.gourat@nexvision.tv> */
 	.atag_offset	= 0x100,
+	.nr_irqs	= NR_IRQS_S3C2410,
 	.map_io		= otom11_map_io,
 	.init_machine	= otom11_init,
 	.init_irq	= s3c2410_init_irq,

arch/arm/mach-s3c/mach-qt2410.c

@@ -367,6 +367,7 @@ static void __init qt2410_machine_init(void)
 
 MACHINE_START(QT2410, "QT2410")
 	.atag_offset	= 0x100,
+	.nr_irqs	= NR_IRQS_S3C2410,
 	.map_io		= qt2410_map_io,
 	.init_irq	= s3c2410_init_irq,
 	.init_machine	= qt2410_machine_init,

arch/arm/mach-s3c/mach-real6410.c

@@ -27,7 +27,7 @@
 #include "map.h"
 #include "regs-gpio.h"
 #include "gpio-samsung.h"
-#include <mach/irqs.h>
+#include "irqs.h"
 
 #include <linux/soc/samsung/s3c-adc.h>
 #include "cpu.h"

arch/arm/mach-s3c/mach-rx1950.c

@@ -868,6 +868,7 @@ static void __init rx1950_reserve(void)
 MACHINE_START(RX1950, "HP iPAQ RX1950")
     /* Maintainers: Vasily Khoruzhick */
 	.atag_offset = 0x100,
+	.nr_irqs	= NR_IRQS_S3C2442,
 	.map_io = rx1950_map_io,
 	.reserve	= rx1950_reserve,
 	.init_irq	= s3c2442_init_irq,

arch/arm/mach-s3c/mach-rx3715.c

@@ -204,6 +204,7 @@ static void __init rx3715_init_machine(void)
 MACHINE_START(RX3715, "IPAQ-RX3715")
 	/* Maintainer: Ben Dooks <ben-linux@fluff.org> */
 	.atag_offset	= 0x100,
+	.nr_irqs	= NR_IRQS_S3C2440,
 	.map_io		= rx3715_map_io,
 	.reserve	= rx3715_reserve,
 	.init_irq	= s3c2440_init_irq,

arch/arm/mach-s3c/mach-smartq5.c

@@ -14,7 +14,7 @@
 #include <asm/mach/arch.h>
 
 #include <video/samsung_fimd.h>
-#include <mach/irqs.h>
+#include "irqs.h"
 #include "map.h"
 #include "regs-gpio.h"
 #include "gpio-samsung.h"

arch/arm/mach-s3c/mach-smartq7.c

@@ -14,7 +14,7 @@
 #include <asm/mach/arch.h>
 
 #include <video/samsung_fimd.h>
-#include <mach/irqs.h>
+#include "irqs.h"
 #include "map.h"
 #include "regs-gpio.h"
 #include "gpio-samsung.h"

arch/arm/mach-s3c/mach-smdk2410.c

@@ -104,6 +104,7 @@ MACHINE_START(SMDK2410, "SMDK2410") /* @TODO: request a new identifier and switc
 				    * to SMDK2410 */
 	/* Maintainer: Jonas Dietsche */
 	.atag_offset	= 0x100,
+	.nr_irqs	= NR_IRQS_S3C2410,
 	.map_io		= smdk2410_map_io,
 	.init_irq	= s3c2410_init_irq,
 	.init_machine	= smdk2410_init,

arch/arm/mach-s3c/mach-smdk2413.c

@@ -129,6 +129,7 @@ static void __init smdk2413_machine_init(void)
 MACHINE_START(S3C2413, "S3C2413")
 	/* Maintainer: Ben Dooks <ben-linux@fluff.org> */
 	.atag_offset	= 0x100,
+	.nr_irqs	= NR_IRQS_S3C2412,
 
 	.fixup		= smdk2413_fixup,
 	.init_irq	= s3c2412_init_irq,
@@ -140,6 +141,7 @@ MACHINE_END
 MACHINE_START(SMDK2412, "SMDK2412")
 	/* Maintainer: Ben Dooks <ben-linux@fluff.org> */
 	.atag_offset	= 0x100,
+	.nr_irqs	= NR_IRQS_S3C2412,
 
 	.fixup		= smdk2413_fixup,
 	.init_irq	= s3c2412_init_irq,
@@ -151,6 +153,7 @@ MACHINE_END
 MACHINE_START(SMDK2413, "SMDK2413")
 	/* Maintainer: Ben Dooks <ben-linux@fluff.org> */
 	.atag_offset	= 0x100,
+	.nr_irqs	= NR_IRQS_S3C2412,
 
 	.fixup		= smdk2413_fixup,
 	.init_irq	= s3c2412_init_irq,

arch/arm/mach-s3c/mach-smdk2416.c

@@ -239,6 +239,7 @@ static void __init smdk2416_machine_init(void)
 MACHINE_START(SMDK2416, "SMDK2416")
 	/* Maintainer: Yauhen Kharuzhy <jekhor@gmail.com> */
 	.atag_offset	= 0x100,
+	.nr_irqs	= NR_IRQS_S3C2416,
 
 	.init_irq	= s3c2416_init_irq,
 	.map_io		= smdk2416_map_io,

arch/arm/mach-s3c/mach-smdk2440.c

@@ -171,6 +171,7 @@ static void __init smdk2440_machine_init(void)
 MACHINE_START(S3C2440, "SMDK2440")
 	/* Maintainer: Ben Dooks <ben-linux@fluff.org> */
 	.atag_offset	= 0x100,
+	.nr_irqs	= NR_IRQS_S3C2440,
 
 	.init_irq	= s3c2440_init_irq,
 	.map_io		= smdk2440_map_io,

arch/arm/mach-s3c/mach-smdk2443.c

@@ -118,7 +118,7 @@ static void __init smdk2443_machine_init(void)
 MACHINE_START(SMDK2443, "SMDK2443")
 	/* Maintainer: Ben Dooks <ben-linux@fluff.org> */
 	.atag_offset	= 0x100,
-
+	.nr_irqs	= NR_IRQS_S3C2443,
 	.init_irq	= s3c2443_init_irq,
 	.map_io		= smdk2443_map_io,
 	.init_machine	= smdk2443_machine_init,

arch/arm/mach-s3c/mach-smdk6400.c

@@ -22,7 +22,7 @@
 #include <asm/mach/map.h>
 #include <asm/mach/irq.h>
 
-#include <mach/irqs.h>
+#include "irqs.h"
 #include "map.h"
 
 #include "devs.h"

arch/arm/mach-s3c/mach-smdk6410.c

@@ -45,7 +45,7 @@
 #include <asm/mach/map.h>
 #include <asm/mach/irq.h>
 
-#include <mach/irqs.h>
+#include "irqs.h"
 #include "map.h"
 
 #include <asm/irq.h>

arch/arm/mach-s3c/mach-tct_hammer.c

@@ -149,6 +149,7 @@ static void __init tct_hammer_init(void)
 
 MACHINE_START(TCT_HAMMER, "TCT_HAMMER")
 	.atag_offset	= 0x100,
+	.nr_irqs	= NR_IRQS_S3C2410,
 	.map_io		= tct_hammer_map_io,
 	.init_irq	= s3c2410_init_irq,
 	.init_machine	= tct_hammer_init,

arch/arm/mach-s3c/mach-vr1000.c

@@ -356,6 +356,7 @@ static void __init vr1000_init(void)
 MACHINE_START(VR1000, "Thorcom-VR1000")
 	/* Maintainer: Ben Dooks <ben@simtec.co.uk> */
 	.atag_offset	= 0x100,
+	.nr_irqs	= NR_IRQS_S3C2410,
 	.map_io		= vr1000_map_io,
 	.init_machine	= vr1000_init,
 	.init_irq	= s3c2410_init_irq,

arch/arm/mach-s3c/mach-vstms.c

@@ -156,6 +156,7 @@ static void __init vstms_init(void)
 
 MACHINE_START(VSTMS, "VSTMS")
 	.atag_offset	= 0x100,
+	.nr_irqs	= NR_IRQS_S3C2412,
 
 	.fixup		= vstms_fixup,
 	.init_irq	= s3c2412_init_irq,

arch/arm/mach-s3c/pl080.c

@@ -11,7 +11,7 @@
 #include <linux/of.h>
 
 #include "cpu.h"
-#include <mach/irqs.h>
+#include "irqs.h"
 #include "map.h"
 
 #include "regs-sys-s3c64xx.h"

arch/arm/mach-s3c/pm-core-s3c24xx.h

@@ -12,7 +12,7 @@
 
 #include "regs-clock.h"
 #include "regs-irq-s3c24xx.h"
-#include <mach/irqs.h>
+#include "irqs.h"
 
 static inline void s3c_pm_debug_init_uart(void)
 {

arch/arm/mach-s3c/pm-s3c2412.c

@@ -19,7 +19,7 @@
 #include <asm/cacheflush.h>
 #include <asm/irq.h>
 
-#include <mach/irqs.h>
+#include "irqs.h"
 #include "regs-gpio.h"
 
 #include "cpu.h"

arch/arm/mach-s3c/pm-s3c64xx.c

@@ -15,7 +15,7 @@
 #include <linux/pm_domain.h>
 
 #include "map.h"
-#include <mach/irqs.h>
+#include "irqs.h"
 
 #include "cpu.h"
 #include "devs.h"

arch/arm/mach-s3c/pm.c

@@ -21,7 +21,7 @@
 #include "map.h"
 #include "regs-clock.h"
 #include "regs-irq.h"
-#include <mach/irqs.h>
+#include "irqs.h"
 
 #include <asm/irq.h>
 

arch/arm/mach-s3c/s3c2443.c

@@ -25,7 +25,7 @@
 
 #include "map.h"
 #include "gpio-samsung.h"
-#include <mach/irqs.h>
+#include "irqs.h"
 #include <asm/irq.h>
 #include <asm/system_misc.h>
 

arch/arm/mach-s3c/s3c24xx.h

@@ -10,7 +10,7 @@
 #define __ARCH_ARM_MACH_S3C24XX_COMMON_H __FILE__
 
 #include <linux/reboot.h>
-#include <mach/irqs.h>
+#include "irqs.h"
 
 struct s3c2410_uartcfg;
 

arch/arm/mach-s3c/s3c64xx.c

@@ -36,7 +36,7 @@
 #include <asm/system_misc.h>
 
 #include "map.h"
-#include <mach/irqs.h>
+#include "irqs.h"
 #include "regs-gpio.h"
 #include "gpio-samsung.h"
 

arch/arm/mach-s3c/simtec-usb.c

@@ -24,7 +24,7 @@
 #include <asm/mach/irq.h>
 
 #include "gpio-samsung.h"
-#include <mach/irqs.h>
+#include "irqs.h"
 #include <asm/irq.h>
 
 #include <linux/platform_data/usb-ohci-s3c2410.h>