Merge branch 's3c64xx/multiplatform' into next/multiplatform

* s3c64xx/multiplatform:
  ARM: s3c64xx: allow building without board support
  ARM: s3c64xx: multiplatform support
  ARM: s3c64xx: use common debug-ll implementation
  ARM: s3c64xx: use new adc/touchscreen driver
  iio: exynos-adc: add experimental touchscreen support
  ARM: s3c64xx: enable sparse IRQ support
  ARM: s3c64xx: prepare initcalls for multiplatform
  gpio: samsung: move gpio-samsung driver back to platform code
  ASoC: samsung/smartq: use dynamic registration
  Input: s3c2410_ts: fix S3C_ADC dependency

Conflicts:
	arch/arm/Kconfig.debug

Documentation/devicetree/bindings/arm/samsung/exynos-adc.txt

@@ -47,6 +47,9 @@ Required properties:
 
 - samsung,syscon-phandle Contains the PMU system controller node
 			(To access the ADC_PHY register on Exynos5250/5420/5800/3250)
+Optional properties:
+- has-touchscreen:	If present, indicates that a touchscreen is
+			connected an usable.
 
 Note: child nodes can be added for auto probing from device tree.
 

arch/arm/Kconfig

@@ -682,32 +682,6 @@ config ARCH_S3C24XX
 	  (<http://www.simtec.co.uk/products/EB110ITX/>), the IPAQ 1940 or the
 	  Samsung SMDK2410 development board (and derivatives).
 
-config ARCH_S3C64XX
-	bool "Samsung S3C64XX"
-	select ARCH_REQUIRE_GPIOLIB
-	select ARM_AMBA
-	select ARM_VIC
-	select ATAGS
-	select CLKDEV_LOOKUP
-	select CLKSRC_SAMSUNG_PWM
-	select COMMON_CLK_SAMSUNG
-	select CPU_V6K
-	select GENERIC_CLOCKEVENTS
-	select GPIO_SAMSUNG
-	select HAVE_S3C2410_I2C if I2C
-	select HAVE_S3C2410_WATCHDOG if WATCHDOG
-	select HAVE_TCM
-	select NO_IOPORT_MAP
-	select PLAT_SAMSUNG
-	select PM_GENERIC_DOMAINS if PM
-	select S3C_DEV_NAND
-	select S3C_GPIO_TRACK
-	select SAMSUNG_ATAGS
-	select SAMSUNG_WAKEMASK
-	select SAMSUNG_WDT_RESET
-	help
-	  Samsung S3C64XX series based systems
-
 config ARCH_DAVINCI
 	bool "TI DaVinci"
 	select ARCH_HAS_HOLES_MEMORYMODEL

arch/arm/Kconfig.debug

@@ -914,6 +914,7 @@ choice
 		depends on PLAT_SAMSUNG
 		select DEBUG_EXYNOS_UART if ARCH_EXYNOS
 		select DEBUG_S3C24XX_UART if ARCH_S3C24XX
+		select DEBUG_S3C64XX_UART if ARCH_S3C64XX
 		select DEBUG_S5PV210_UART if ARCH_S5PV210
 		bool "Use Samsung S3C UART 0 for low-level debug"
 		help
@@ -925,6 +926,7 @@ choice
 		depends on PLAT_SAMSUNG
 		select DEBUG_EXYNOS_UART if ARCH_EXYNOS
 		select DEBUG_S3C24XX_UART if ARCH_S3C24XX
+		select DEBUG_S3C64XX_UART if ARCH_S3C64XX
 		select DEBUG_S5PV210_UART if ARCH_S5PV210
 		bool "Use Samsung S3C UART 1 for low-level debug"
 		help
@@ -936,6 +938,7 @@ choice
 		depends on PLAT_SAMSUNG
 		select DEBUG_EXYNOS_UART if ARCH_EXYNOS
 		select DEBUG_S3C24XX_UART if ARCH_S3C24XX
+		select DEBUG_S3C64XX_UART if ARCH_S3C64XX
 		select DEBUG_S5PV210_UART if ARCH_S5PV210
 		bool "Use Samsung S3C UART 2 for low-level debug"
 		help
@@ -946,6 +949,7 @@ choice
 	config DEBUG_S3C_UART3
 		depends on PLAT_SAMSUNG && (ARCH_EXYNOS || ARCH_S5PV210)
 		select DEBUG_EXYNOS_UART if ARCH_EXYNOS
+		select DEBUG_S3C64XX_UART if ARCH_S3C64XX
 		select DEBUG_S5PV210_UART if ARCH_S5PV210
 		bool "Use Samsung S3C UART 3 for low-level debug"
 		help
@@ -1320,6 +1324,9 @@ config DEBUG_S3C2410_UART
 config DEBUG_S3C24XX_UART
 	bool
 
+config DEBUG_S3C64XX_UART
+	bool
+
 config DEBUG_S5PV210_UART
 	bool
 
@@ -1406,7 +1413,7 @@ config DEBUG_LL_INCLUDE
 	default "debug/renesas-scif.S" if DEBUG_RMOBILE_SCIFA0
 	default "debug/renesas-scif.S" if DEBUG_RMOBILE_SCIFA1
 	default "debug/renesas-scif.S" if DEBUG_RMOBILE_SCIFA4
-	default "debug/s3c24xx.S" if DEBUG_S3C24XX_UART
+	default "debug/s3c24xx.S" if DEBUG_S3C24XX_UART || DEBUG_S3C64XX_UART
 	default "debug/s5pv210.S" if DEBUG_S5PV210_UART
 	default "debug/sirf.S" if DEBUG_SIRFSOC_UART
 	default "debug/sti.S" if DEBUG_STI_UART
@@ -1482,6 +1489,10 @@ config DEBUG_UART_PHYS
 				DEBUG_S3C2410_UART2)
 	default 0x78000000 if DEBUG_CNS3XXX
 	default 0x7c0003f8 if DEBUG_FOOTBRIDGE_COM1
+	default 0x7f005000 if DEBUG_S3C64XX_UART && DEBUG_S3C_UART0
+	default 0x7f005400 if DEBUG_S3C64XX_UART && DEBUG_S3C_UART1
+	default 0x7f005800 if DEBUG_S3C64XX_UART && DEBUG_S3C_UART2
+	default 0x7f005c00 if DEBUG_S3C64XX_UART && DEBUG_S3C_UART3
 	default 0x80010000 if DEBUG_ASM9260_UART
 	default 0x80070000 if DEBUG_IMX23_UART
 	default 0x80074000 if DEBUG_IMX28_UART
@@ -1538,6 +1549,7 @@ config DEBUG_UART_PHYS
 		DEBUG_RCAR_GEN2_SCIF0 || DEBUG_RCAR_GEN2_SCIF2 || \
 		DEBUG_RMOBILE_SCIFA0 || DEBUG_RMOBILE_SCIFA1 || \
 		DEBUG_RMOBILE_SCIFA4 || DEBUG_S3C24XX_UART || \
+		DEBUG_S3C64XX_UART || \
 		DEBUG_UART_BCM63XX || DEBUG_ASM9260_UART || \
 		DEBUG_SIRFSOC_UART || DEBUG_DIGICOLOR_UA0 || \
 		DEBUG_AT91_UART
@@ -1564,8 +1576,12 @@ config DEBUG_UART_VIRT
 	default 0xf4200000 if DEBUG_GEMINI
 	default 0xf6200000 if DEBUG_PXA_UART1
 	default 0xf7000000 if DEBUG_SUN9I_UART0
+	default 0xf7000000 if DEBUG_S3C64XX_UART && DEBUG_S3C_UART0
 	default 0xf7000000 if DEBUG_S3C24XX_UART && (DEBUG_S3C_UART0 || \
 				DEBUG_S3C2410_UART0)
+	default 0xf7000400 if DEBUG_S3C64XX_UART && DEBUG_S3C_UART1
+	default 0xf7000800 if DEBUG_S3C64XX_UART && DEBUG_S3C_UART2
+	default 0xf7000c00 if DEBUG_S3C64XX_UART && DEBUG_S3C_UART3
 	default 0xf7004000 if DEBUG_S3C24XX_UART && (DEBUG_S3C_UART1 || \
 				DEBUG_S3C2410_UART1)
 	default 0xf7008000 if DEBUG_S3C24XX_UART && (DEBUG_S3C_UART2 || \
@@ -1629,6 +1645,7 @@ config DEBUG_UART_VIRT
 		DEBUG_UART_8250 || DEBUG_UART_PL01X || DEBUG_MESON_UARTAO || \
 		DEBUG_NETX_UART || \
 		DEBUG_QCOM_UARTDM || DEBUG_S3C24XX_UART || \
+		DEBUG_S3C64XX_UART || \
 		DEBUG_UART_BCM63XX || DEBUG_ASM9260_UART || \
 		DEBUG_SIRFSOC_UART || DEBUG_DIGICOLOR_UA0
 

arch/arm/configs/multi_v7_defconfig

@@ -11,6 +11,9 @@ CONFIG_MODULES=y
 CONFIG_MODULE_UNLOAD=y
 CONFIG_PARTITION_ADVANCED=y
 CONFIG_CMDLINE_PARTITION=y
+CONFIG_ARCH_MULTI_V7=y
+# CONFIG_ARCH_MULTI_V5 is not set
+# CONFIG_ARCH_MULTI_V4 is not set
 CONFIG_ARCH_VIRT=y
 CONFIG_ARCH_ALPINE=y
 CONFIG_ARCH_MVEBU=y

arch/arm/configs/s3c6400_defconfig

@@ -5,6 +5,8 @@ CONFIG_KALLSYMS_ALL=y
 CONFIG_MODULES=y
 CONFIG_MODULE_UNLOAD=y
 # CONFIG_BLK_DEV_BSG is not set
+CONFIG_ARCH_MULTI_V6=y
+# CONFIG_ARCH_MULTI_V7 is not set
 CONFIG_ARCH_S3C64XX=y
 CONFIG_S3C_BOOT_ERROR_RESET=y
 CONFIG_MACH_SMDK6400=y

arch/arm/mach-s3c64xx/Kconfig

@@ -2,6 +2,26 @@
 #	Simtec Electronics, Ben Dooks <ben@simtec.co.uk>
 #
 # Licensed under GPLv2
+menuconfig ARCH_S3C64XX
+	bool "Samsung S3C64XX" if ARCH_MULTI_V6
+	select ARCH_REQUIRE_GPIOLIB
+	select ARM_AMBA
+	select ARM_VIC
+	select CLKSRC_SAMSUNG_PWM
+	select COMMON_CLK_SAMSUNG
+	select GPIO_SAMSUNG if ATAGS
+	select HAVE_S3C2410_I2C if I2C
+	select HAVE_S3C2410_WATCHDOG if WATCHDOG
+	select HAVE_TCM
+	select PLAT_SAMSUNG
+	select PM_GENERIC_DOMAINS if PM
+	select S3C_DEV_NAND if ATAGS
+	select S3C_GPIO_TRACK if ATAGS
+	select SAMSUNG_ATAGS if ATAGS
+	select SAMSUNG_WAKEMASK if PM
+	select SAMSUNG_WDT_RESET
+	help
+	  Samsung S3C64XX series based systems
 
 if ARCH_S3C64XX
 
@@ -90,6 +110,7 @@ config S3C64XX_SETUP_USB_PHY
 
 config MACH_SMDK6400
        bool "SMDK6400"
+	depends on ATAGS
 	select CPU_S3C6400
 	select S3C64XX_SETUP_SDHCI
 	select S3C_DEV_HSMMC1
@@ -100,6 +121,7 @@ config MACH_SMDK6400
 
 config MACH_ANW6410
 	bool "A&W6410"
+	depends on ATAGS
 	select CPU_S3C6410
 	select S3C64XX_SETUP_FB_24BPP
 	select S3C_DEV_FB
@@ -108,6 +130,7 @@ config MACH_ANW6410
 
 config MACH_MINI6410
 	bool "MINI6410"
+	depends on ATAGS
 	select CPU_S3C6410
 	select S3C64XX_SETUP_FB_24BPP
 	select S3C64XX_SETUP_SDHCI
@@ -123,6 +146,7 @@ config MACH_MINI6410
 
 config MACH_REAL6410
 	bool "REAL6410"
+	depends on ATAGS
 	select CPU_S3C6410
 	select S3C64XX_SETUP_FB_24BPP
 	select S3C64XX_SETUP_SDHCI
@@ -138,6 +162,7 @@ config MACH_REAL6410
 
 config MACH_SMDK6410
 	bool "SMDK6410"
+	depends on ATAGS
 	select CPU_S3C6410
 	select HAVE_S3C2410_WATCHDOG if WATCHDOG
 	select S3C64XX_SETUP_FB_24BPP
@@ -225,6 +250,7 @@ config SMDK6410_WM1192_EV1
 
 config MACH_NCP
 	bool "NCP"
+	depends on ATAGS
 	select CPU_S3C6410
 	select S3C64XX_SETUP_I2C1
 	select S3C_DEV_HSMMC1
@@ -234,6 +260,7 @@ config MACH_NCP
 
 config MACH_HMT
 	bool "Airgoo HMT"
+	depends on ATAGS
 	select CPU_S3C6410
 	select S3C64XX_SETUP_FB_24BPP
 	select S3C_DEV_FB
@@ -265,18 +292,21 @@ config MACH_SMARTQ
 
 config MACH_SMARTQ5
 	bool "SmartQ 5"
+	depends on ATAGS
 	select MACH_SMARTQ
 	help
 	    Machine support for the SmartQ 5
 
 config MACH_SMARTQ7
 	bool "SmartQ 7"
+	depends on ATAGS
 	select MACH_SMARTQ
 	help
 	    Machine support for the SmartQ 7
 
 config MACH_WLF_CRAGG_6410
 	bool "Wolfson Cragganmore 6410"
+	depends on ATAGS
 	depends on I2C=y
 	select CPU_S3C6410
 	select LEDS_GPIO_REGISTER
@@ -310,7 +340,6 @@ config MACH_S3C64XX_DT
 	select CPU_S3C6410
 	select PINCTRL
 	select PINCTRL_S3C64XX
-	select USE_OF
 	help
 	  Machine support for Samsung S3C6400/S3C6410 machines with Device Tree
 	  enabled.

arch/arm/mach-s3c64xx/Makefile

@@ -5,21 +5,25 @@
 #
 # Licensed under GPLv2
 
-# Core
-
-obj-y				+= common.o
-
-# Core support
-
-obj-$(CONFIG_CPU_S3C6400)	+= s3c6400.o
-obj-$(CONFIG_CPU_S3C6410)	+= s3c6410.o
+ccflags-$(CONFIG_ARCH_MULTIPLATFORM) := -I$(srctree)/$(src)/include -I$(srctree)/arch/arm/plat-samsung/include
+asflags-$(CONFIG_ARCH_MULTIPLATFORM) := -I$(srctree)/$(src)/include -I$(srctree)/arch/arm/plat-samsung/include
 
 # PM
 
 obj-$(CONFIG_PM)		+= pm.o
-obj-$(CONFIG_PM_SLEEP)		+= irq-pm.o sleep.o
+obj-$(CONFIG_PM_SLEEP)		+= sleep.o
 obj-$(CONFIG_CPU_IDLE)		+= cpuidle.o
 
+ifdef CONFIG_SAMSUNG_ATAGS
+
+obj-$(CONFIG_PM_SLEEP)          += irq-pm.o
+
+# Core
+
+obj-y				+= common.o
+obj-$(CONFIG_CPU_S3C6400)	+= s3c6400.o
+obj-$(CONFIG_CPU_S3C6410)	+= s3c6410.o
+
 # DMA support
 
 obj-$(CONFIG_S3C64XX_PL080)	+= pl080.o
@@ -55,4 +59,6 @@ obj-$(CONFIG_MACH_SMARTQ7)		+= mach-smartq7.o
 obj-$(CONFIG_MACH_SMDK6400)		+= mach-smdk6400.o
 obj-$(CONFIG_MACH_SMDK6410)		+= mach-smdk6410.o
 obj-$(CONFIG_MACH_WLF_CRAGG_6410)	+= mach-crag6410.o mach-crag6410-module.o
+endif
+
 obj-$(CONFIG_MACH_S3C64XX_DT)		+= mach-s3c64xx-dt.o

arch/arm/mach-s3c64xx/common.c

@@ -39,6 +39,7 @@
 #include <asm/system_misc.h>
 
 #include <mach/map.h>
+#include <mach/irqs.h>
 #include <mach/hardware.h>
 #include <mach/regs-gpio.h>
 #include <mach/gpio-samsung.h>
@@ -208,7 +209,7 @@ void __init s3c64xx_init_io(struct map_desc *mach_desc, int size)
 static __init int s3c64xx_dev_init(void)
 {
 	/* Not applicable when using DT. */
-	if (of_have_populated_dt())
+	if (of_have_populated_dt() || !soc_is_s3c64xx())
 		return 0;
 
 	subsys_system_register(&s3c64xx_subsys, NULL);
@@ -413,7 +414,7 @@ static int __init s3c64xx_init_irq_eint(void)
 	int irq;
 
 	/* On DT-enabled systems EINTs are handled by pinctrl-s3c64xx driver. */
-	if (of_have_populated_dt())
+	if (of_have_populated_dt() || !soc_is_s3c64xx())
 		return -ENODEV;
 
 	for (irq = IRQ_EINT(0); irq <= IRQ_EINT(27); irq++) {

arch/arm/mach-s3c64xx/cpuidle.c

@@ -18,6 +18,7 @@
 
 #include <asm/cpuidle.h>
 
+#include <plat/cpu.h>
 #include <mach/map.h>
 
 #include "regs-sys.h"
@@ -57,6 +58,8 @@ static struct cpuidle_driver s3c64xx_cpuidle_driver = {
 
 static int __init s3c64xx_init_cpuidle(void)
 {
-	return cpuidle_register(&s3c64xx_cpuidle_driver, NULL);
+	if (soc_is_s3c64xx())
+		return cpuidle_register(&s3c64xx_cpuidle_driver, NULL);
+	return 0;
 }
 device_initcall(s3c64xx_init_cpuidle);

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

@@ -23,6 +23,7 @@
 #include <asm/mach/irq.h>
 #include <mach/hardware.h>
 #include <mach/map.h>
+#include <mach/irqs.h>
 
 #include <plat/devs.h>
 

arch/arm/mach-s3c64xx/include/mach/debug-macro.S

-/* arch/arm/mach-s3c6400/include/mach/debug-macro.S
- *
- * Copyright 2008 Openmoko, Inc.
- * Copyright 2008 Simtec Electronics
- *	http://armlinux.simtec.co.uk/
- *	Ben Dooks <ben@simtec.co.uk>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
-*/
-
-/* pull in the relevant register and map files. */
-
-#include <linux/serial_s3c.h>
-#include <mach/map.h>
-
-	/* note, for the boot process to work we have to keep the UART
-	 * virtual address aligned to an 1MiB boundary for the L1
-	 * mapping the head code makes. We keep the UART virtual address
-	 * aligned and add in the offset when we load the value here.
-	 */
-
-	.macro addruart, rp, rv, tmp
-		ldr	\rp, = S3C_PA_UART
-		ldr	\rv, = (S3C_VA_UART + S3C_PA_UART & 0xfffff)
-#if CONFIG_DEBUG_S3C_UART != 0
-		add	\rp, \rp, #(0x400 * CONFIG_DEBUG_S3C_UART)
-		add	\rv, \rv, #(0x400 * CONFIG_DEBUG_S3C_UART)
-#endif
-	.endm
-
-/* include the reset of the code which will do the work, we're only
- * compiling for a single cpu processor type so the default of s3c2440
- * will be fine with us.
- */
-
-#include <debug/samsung.S>

arch/arm/mach-s3c64xx/include/mach/gpio-samsung.h

@@ -14,6 +14,8 @@
 #ifndef GPIO_SAMSUNG_S3C64XX_H
 #define GPIO_SAMSUNG_S3C64XX_H
 
+#ifdef CONFIG_GPIO_SAMSUNG
+
 /* GPIO bank sizes */
 #define S3C64XX_GPIO_A_NR	(8)
 #define S3C64XX_GPIO_B_NR	(7)
@@ -90,5 +92,6 @@ enum s3c_gpio_number {
 /* define the number of gpios we need to the one after the GPQ() range */
 #define GPIO_BOARD_START (S3C64XX_GPQ(S3C64XX_GPIO_Q_NR) + 1)
 
+#endif /* GPIO_SAMSUNG */
 #endif /* GPIO_SAMSUNG_S3C64XX_H */
 

arch/arm/mach-s3c64xx/include/mach/irqs.h

@@ -156,25 +156,11 @@
 
 #define IRQ_EINT_GROUP(group, no)	(IRQ_EINT_GROUP##group##_BASE + (no))
 
-/* Define a group of interrupts for board-specific use (eg, for MFD
- * interrupt controllers). */
+/* Some boards have their own IRQs behind this */
 #define IRQ_BOARD_START (IRQ_EINT_GROUP9_BASE + IRQ_EINT_GROUP9_NR + 1)
 
-#ifdef CONFIG_MACH_WLF_CRAGG_6410
-#define IRQ_BOARD_NR 160
-#elif defined(CONFIG_SMDK6410_WM1190_EV1)
-#define IRQ_BOARD_NR 64
-#elif defined(CONFIG_SMDK6410_WM1192_EV1)
-#define IRQ_BOARD_NR 64
-#else
-#define IRQ_BOARD_NR 16
-#endif
-
-#define IRQ_BOARD_END (IRQ_BOARD_START + IRQ_BOARD_NR)
-
-/* Set the default NR_IRQS */
-
-#define NR_IRQS	(IRQ_BOARD_END + 1)
+/* Set the default nr_irqs, boards can override if necessary */
+#define S3C64XX_NR_IRQS	IRQ_BOARD_START
 
 /* Compatibility */
 

arch/arm/mach-s3c64xx/include/mach/pm-core.h

@@ -18,6 +18,7 @@
 #include <linux/serial_s3c.h>
 
 #include <mach/regs-gpio.h>
+#include <mach/regs-clock.h>
 
 static inline void s3c_pm_debug_init_uart(void)
 {

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

@@ -113,7 +113,7 @@ static struct syscore_ops s3c64xx_irq_syscore_ops = {
 static __init int s3c64xx_syscore_init(void)
 {
 	/* Appropriate drivers (pinctrl, uart) handle this when using DT. */
-	if (of_have_populated_dt())
+	if (of_have_populated_dt() || !soc_is_s3c64xx())
 		return 0;
 
 	register_syscore_ops(&s3c64xx_irq_syscore_ops);

arch/arm/mach-s3c64xx/mach-anw6410.c

@@ -47,6 +47,7 @@
 
 #include <plat/devs.h>
 #include <plat/cpu.h>
+#include <mach/irqs.h>
 #include <mach/regs-gpio.h>
 #include <mach/gpio-samsung.h>
 #include <plat/samsung-time.h>
@@ -229,7 +230,7 @@ static void __init anw6410_machine_init(void)
 MACHINE_START(ANW6410, "A&W6410")
 	/* Maintainer: Kwangwoo Lee <kwangwoo.lee@gmail.com> */
 	.atag_offset	= 0x100,
-
+	.nr_irqs	= S3C64XX_NR_IRQS,
 	.init_irq	= s3c6410_init_irq,
 	.map_io		= anw6410_map_io,
 	.init_machine	= anw6410_machine_init,

arch/arm/mach-s3c64xx/mach-crag6410-module.c

@@ -29,6 +29,9 @@
 
 #include <linux/platform_data/spi-s3c64xx.h>
 
+#include <plat/cpu.h>
+#include <mach/irqs.h>
+
 #include "crag6410.h"
 
 static struct s3c64xx_spi_csinfo wm0010_spi_csinfo = {
@@ -399,6 +402,9 @@ static struct i2c_driver wlf_gf_module_driver = {
 
 static int __init wlf_gf_module_register(void)
 {
+	if (!soc_is_s3c64xx())
+		return 0;
+
 	return i2c_add_driver(&wlf_gf_module_driver);
 }
 device_initcall(wlf_gf_module_register);

arch/arm/mach-s3c64xx/mach-crag6410.c

@@ -52,6 +52,7 @@
 #include <mach/map.h>
 #include <mach/regs-gpio.h>
 #include <mach/gpio-samsung.h>
+#include <mach/irqs.h>
 
 #include <plat/fb.h>
 #include <plat/sdhci.h>
@@ -860,6 +861,7 @@ static void __init crag6410_machine_init(void)
 MACHINE_START(WLF_CRAGG_6410, "Wolfson Cragganmore 6410")
 	/* Maintainer: Mark Brown <broonie@opensource.wolfsonmicro.com> */
 	.atag_offset	= 0x100,
+	.nr_irqs	= S3C64XX_NR_IRQS,
 	.init_irq	= s3c6410_init_irq,
 	.map_io		= crag6410_map_io,
 	.init_machine	= crag6410_machine_init,

arch/arm/mach-s3c64xx/mach-hmt.c

@@ -31,6 +31,7 @@
 #include <video/samsung_fimd.h>
 #include <mach/hardware.h>
 #include <mach/map.h>
+#include <mach/irqs.h>
 
 #include <asm/irq.h>
 #include <asm/mach-types.h>
@@ -279,6 +280,7 @@ static void __init hmt_machine_init(void)
 MACHINE_START(HMT, "Airgoo-HMT")
 	/* Maintainer: Peter Korsgaard <jacmet@sunsite.dk> */
 	.atag_offset	= 0x100,
+	.nr_irqs	= S3C64XX_NR_IRQS,
 	.init_irq	= s3c6410_init_irq,
 	.map_io		= hmt_map_io,
 	.init_machine	= hmt_machine_init,

arch/arm/mach-s3c64xx/mach-mini6410.c

@@ -41,6 +41,7 @@
 #include <linux/platform_data/mmc-sdhci-s3c.h>
 #include <plat/sdhci.h>
 #include <linux/platform_data/touchscreen-s3c2410.h>
+#include <mach/irqs.h>
 
 #include <video/platform_lcd.h>
 #include <video/samsung_fimd.h>
@@ -233,7 +234,6 @@ static struct platform_device *mini6410_devices[] __initdata = {
 	&s3c_device_fb,
 	&mini6410_lcd_powerdev,
 	&s3c_device_adc,
-	&s3c_device_ts,
 };
 
 static void __init mini6410_map_io(void)
@@ -332,7 +332,7 @@ static void __init mini6410_machine_init(void)
 	s3c_nand_set_platdata(&mini6410_nand_info);
 	s3c_fb_set_platdata(&mini6410_lcd_pdata[features.lcd_index]);
 	s3c_sdhci1_set_platdata(&mini6410_hsmmc1_pdata);
-	s3c24xx_ts_set_platdata(NULL);
+	s3c64xx_ts_set_platdata(NULL);
 
 	/* configure nCS1 width to 16 bits */
 
@@ -363,6 +363,7 @@ static void __init mini6410_machine_init(void)
 MACHINE_START(MINI6410, "MINI6410")
 	/* Maintainer: Darius Augulis <augulis.darius@gmail.com> */
 	.atag_offset	= 0x100,
+	.nr_irqs	= S3C64XX_NR_IRQS,
 	.init_irq	= s3c6410_init_irq,
 	.map_io		= mini6410_map_io,
 	.init_machine	= mini6410_machine_init,

arch/arm/mach-s3c64xx/mach-ncp.c

@@ -31,6 +31,7 @@
 #include <asm/mach/map.h>
 #include <asm/mach/irq.h>
 
+#include <mach/irqs.h>
 #include <mach/hardware.h>
 #include <mach/map.h>
 
@@ -100,6 +101,7 @@ static void __init ncp_machine_init(void)
 MACHINE_START(NCP, "NCP")
 	/* Maintainer: Samsung Electronics */
 	.atag_offset	= 0x100,
+	.nr_irqs	= S3C64XX_NR_IRQS,
 	.init_irq	= s3c6410_init_irq,
 	.map_io		= ncp_map_io,
 	.init_machine	= ncp_machine_init,

arch/arm/mach-s3c64xx/mach-real6410.c

@@ -33,6 +33,7 @@
 #include <mach/map.h>
 #include <mach/regs-gpio.h>
 #include <mach/gpio-samsung.h>
+#include <mach/irqs.h>
 
 #include <plat/adc.h>
 #include <plat/cpu.h>
@@ -202,7 +203,6 @@ static struct platform_device *real6410_devices[] __initdata = {
 	&s3c_device_fb,
 	&s3c_device_nand,
 	&s3c_device_adc,
-	&s3c_device_ts,
 	&s3c_device_ohci,
 };
 
@@ -301,7 +301,7 @@ static void __init real6410_machine_init(void)
 
 	s3c_fb_set_platdata(&real6410_lcd_pdata[features.lcd_index]);
 	s3c_nand_set_platdata(&real6410_nand_info);
-	s3c24xx_ts_set_platdata(NULL);
+	s3c64xx_ts_set_platdata(NULL);
 
 	/* configure nCS1 width to 16 bits */
 
@@ -331,7 +331,7 @@ static void __init real6410_machine_init(void)
 MACHINE_START(REAL6410, "REAL6410")
 	/* Maintainer: Darius Augulis <augulis.darius@gmail.com> */
 	.atag_offset	= 0x100,
-
+	.nr_irqs	= S3C64XX_NR_IRQS,
 	.init_irq	= s3c6410_init_irq,
 	.map_io		= real6410_map_io,
 	.init_machine	= real6410_machine_init,

arch/arm/mach-s3c64xx/mach-smartq.c

@@ -12,6 +12,7 @@
 #include <linux/delay.h>
 #include <linux/fb.h>
 #include <linux/gpio.h>
+#include <linux/gpio/machine.h>
 #include <linux/init.h>
 #include <linux/platform_device.h>
 #include <linux/pwm.h>
@@ -252,7 +253,6 @@ static struct platform_device *smartq_devices[] __initdata = {
 	&s3c_device_ohci,
 	&s3c_device_rtc,
 	&samsung_device_pwm,
-	&s3c_device_ts,
 	&s3c_device_usb_hsotg,
 	&s3c64xx_device_iis0,
 	&smartq_backlight_device,
@@ -383,6 +383,15 @@ void __init smartq_map_io(void)
 	smartq_lcd_mode_set();
 }
 
+static struct gpiod_lookup_table smartq_audio_gpios = {
+	.dev_id = "smartq-audio",
+	.table = {
+		GPIO_LOOKUP("GPL", 12, "headphone detect", 0),
+		GPIO_LOOKUP("GPK", 12, "amplifiers shutdown", 0),
+		{ },
+	},
+};
+
 void __init smartq_machine_init(void)
 {
 	s3c_i2c0_set_platdata(NULL);
@@ -390,7 +399,7 @@ void __init smartq_machine_init(void)
 	s3c_hwmon_set_platdata(&smartq_hwmon_pdata);
 	s3c_sdhci1_set_platdata(&smartq_internal_hsmmc_pdata);
 	s3c_sdhci2_set_platdata(&smartq_internal_hsmmc_pdata);
-	s3c24xx_ts_set_platdata(&smartq_touchscreen_pdata);
+	s3c64xx_ts_set_platdata(&smartq_touchscreen_pdata);
 
 	i2c_register_board_info(0, smartq_i2c_devs,
 				ARRAY_SIZE(smartq_i2c_devs));
@@ -402,4 +411,7 @@ void __init smartq_machine_init(void)
 
 	pwm_add_table(smartq_pwm_lookup, ARRAY_SIZE(smartq_pwm_lookup));
 	platform_add_devices(smartq_devices, ARRAY_SIZE(smartq_devices));
+
+	gpiod_add_lookup_table(&smartq_audio_gpios);
+	platform_device_register_simple("smartq-audio", -1, NULL, 0);
 }

arch/arm/mach-s3c64xx/mach-smartq5.c

@@ -21,6 +21,7 @@
 #include <asm/mach/arch.h>
 
 #include <video/samsung_fimd.h>
+#include <mach/irqs.h>
 #include <mach/map.h>
 #include <mach/regs-gpio.h>
 #include <mach/gpio-samsung.h>
@@ -153,6 +154,7 @@ static void __init smartq5_machine_init(void)
 MACHINE_START(SMARTQ5, "SmartQ 5")
 	/* Maintainer: Maurus Cuelenaere <mcuelenaere AT gmail DOT com> */
 	.atag_offset	= 0x100,
+	.nr_irqs	= S3C64XX_NR_IRQS,
 	.init_irq	= s3c6410_init_irq,
 	.map_io		= smartq_map_io,
 	.init_machine	= smartq5_machine_init,

arch/arm/mach-s3c64xx/mach-smartq7.c

@@ -21,6 +21,7 @@
 #include <asm/mach/arch.h>
 
 #include <video/samsung_fimd.h>
+#include <mach/irqs.h>
 #include <mach/map.h>
 #include <mach/regs-gpio.h>
 #include <mach/gpio-samsung.h>
@@ -169,6 +170,7 @@ static void __init smartq7_machine_init(void)
 MACHINE_START(SMARTQ7, "SmartQ 7")
 	/* Maintainer: Maurus Cuelenaere <mcuelenaere AT gmail DOT com> */
 	.atag_offset	= 0x100,
+	.nr_irqs	= S3C64XX_NR_IRQS,
 	.init_irq	= s3c6410_init_irq,
 	.map_io		= smartq_map_io,
 	.init_machine	= smartq7_machine_init,

arch/arm/mach-s3c64xx/mach-smdk6400.c

@@ -27,6 +27,7 @@
 #include <asm/mach/map.h>
 #include <asm/mach/irq.h>
 
+#include <mach/irqs.h>
 #include <mach/hardware.h>
 #include <mach/map.h>
 
@@ -88,7 +89,7 @@ static void __init smdk6400_machine_init(void)
 MACHINE_START(SMDK6400, "SMDK6400")
 	/* Maintainer: Ben Dooks <ben-linux@fluff.org> */
 	.atag_offset	= 0x100,
-
+	.nr_irqs	= S3C64XX_NR_IRQS,
 	.init_irq	= s3c6400_init_irq,
 	.map_io		= smdk6400_map_io,
 	.init_machine	= smdk6400_machine_init,

arch/arm/mach-s3c64xx/mach-smdk6410.c

@@ -52,6 +52,7 @@
 #include <asm/mach/irq.h>
 
 #include <mach/hardware.h>
+#include <mach/irqs.h>
 #include <mach/map.h>
 
 #include <asm/irq.h>
@@ -289,7 +290,6 @@ static struct platform_device *smdk6410_devices[] __initdata = {
 	&s3c_device_adc,
 	&s3c_device_cfcon,
 	&s3c_device_rtc,
-	&s3c_device_ts,
 	&s3c_device_wdt,
 };
 
@@ -668,7 +668,7 @@ static void __init smdk6410_machine_init(void)
 
 	samsung_keypad_set_platdata(&smdk6410_keypad_data);
 
-	s3c24xx_ts_set_platdata(NULL);
+	s3c64xx_ts_set_platdata(NULL);
 
 	/* configure nCS1 width to 16 bits */
 
@@ -707,7 +707,7 @@ static void __init smdk6410_machine_init(void)
 MACHINE_START(SMDK6410, "SMDK6410")
 	/* Maintainer: Ben Dooks <ben-linux@fluff.org> */
 	.atag_offset	= 0x100,
-
+	.nr_irqs	= S3C64XX_NR_IRQS,
 	.init_irq	= s3c6410_init_irq,
 	.map_io		= smdk6410_map_io,
 	.init_machine	= smdk6410_machine_init,

arch/arm/mach-s3c64xx/pl080.c

@@ -14,6 +14,7 @@
 #include <linux/amba/pl08x.h>
 #include <linux/of.h>
 
+#include <plat/cpu.h>
 #include <mach/irqs.h>
 #include <mach/map.h>
 
@@ -230,6 +231,9 @@ static AMBA_AHB_DEVICE(s3c64xx_dma1, "dma-pl080s.1", 0,
 
 static int __init s3c64xx_pl080_init(void)
 {
+	if (!soc_is_s3c64xx())
+		return 0;
+
 	/* Set all DMA configuration to be DMA, not SDMA */
 	writel(0xffffff, S3C64XX_SDMA_SEL);
 

arch/arm/mach-s3c64xx/pm.c

@@ -22,6 +22,7 @@
 #include <mach/map.h>
 #include <mach/irqs.h>
 
+#include <plat/cpu.h>
 #include <plat/devs.h>
 #include <plat/pm.h>
 #include <plat/wakeup-mask.h>
@@ -332,6 +333,9 @@ int __init s3c64xx_pm_init(void)
 
 static __init int s3c64xx_pm_initcall(void)
 {
+	if (!soc_is_s3c64xx())
+		return 0;
+
 	pm_cpu_prep = s3c64xx_pm_prepare;
 	pm_cpu_sleep = s3c64xx_cpu_suspend;
 

arch/arm/mach-s3c64xx/s3c6400.c

@@ -81,7 +81,7 @@ static struct device s3c6400_dev = {
 static int __init s3c6400_core_init(void)
 {
 	/* Not applicable when using DT. */
-	if (of_have_populated_dt())
+	if (of_have_populated_dt() || soc_is_s3c64xx())
 		return 0;
 
 	return subsys_system_register(&s3c6400_subsys, NULL);

arch/arm/mach-s3c64xx/s3c6410.c

@@ -84,7 +84,7 @@ static struct device s3c6410_dev = {
 static int __init s3c6410_core_init(void)
 {
 	/* Not applicable when using DT. */
-	if (of_have_populated_dt())
+	if (of_have_populated_dt() || !soc_is_s3c64xx())
 		return 0;
 
 	return subsys_system_register(&s3c6410_subsys, NULL);

arch/arm/plat-samsung/Kconfig

@@ -39,7 +39,6 @@ config S3C_LOWLEVEL_UART_PORT
 
 config SAMSUNG_ATAGS
 	def_bool n
-	depends on !ARCH_MULTIPLATFORM
 	depends on ATAGS
 	help
 	   This option enables ATAGS based boot support code for
@@ -70,6 +69,7 @@ config S3C_GPIO_TRACK
 
 config S3C_ADC
 	bool "ADC common driver support"
+	depends on !ARCH_MULTIPLATFORM
 	help
 	  Core support for the ADC block found in the Samsung SoC systems
 	  for drivers such as the touchscreen and hwmon to use to share
@@ -225,6 +225,9 @@ config S3C24XX_PWM
 	  Support for exporting the PWM timer blocks via the pwm device
 	  system
 
+config GPIO_SAMSUNG
+	def_bool y
+
 config SAMSUNG_PM_GPIO
 	bool
 	default y if GPIO_SAMSUNG && PM

arch/arm/plat-samsung/Makefile

@@ -4,7 +4,8 @@
 #
 # Licensed under GPLv2
 
-ccflags-$(CONFIG_ARCH_MULTI_V7) += -I$(srctree)/$(src)/include
+ccflags-$(CONFIG_ARCH_S3C64XX) := -I$(srctree)/arch/arm/mach-s3c64xx/include
+ccflags-$(CONFIG_ARCH_MULTIPLATFORM) += -I$(srctree)/$(src)/include
 
 # Objects we always build independent of SoC choice
 
@@ -21,6 +22,8 @@ obj-$(CONFIG_SAMSUNG_ATAGS)	+= platformdata.o
 obj-$(CONFIG_SAMSUNG_ATAGS)	+= devs.o
 obj-$(CONFIG_SAMSUNG_ATAGS)	+= dev-uart.o
 
+obj-$(CONFIG_GPIO_SAMSUNG)     += gpio-samsung.o
+
 # PM support
 
 obj-$(CONFIG_PM_SLEEP)		+= pm-common.o

arch/arm/plat-samsung/devs.c

@@ -111,12 +111,12 @@ struct platform_device s3c_device_adc = {
 #if defined(CONFIG_SAMSUNG_DEV_ADC)
 static struct resource s3c_adc_resource[] = {
 	[0] = DEFINE_RES_MEM(SAMSUNG_PA_ADC, SZ_256),
-	[1] = DEFINE_RES_IRQ(IRQ_TC),
-	[2] = DEFINE_RES_IRQ(IRQ_ADC),
+	[1] = DEFINE_RES_IRQ(IRQ_ADC),
+	[2] = DEFINE_RES_IRQ(IRQ_TC),
 };
 
 struct platform_device s3c_device_adc = {
-	.name		= "samsung-adc",
+	.name		= "exynos-adc",
 	.id		= -1,
 	.num_resources	= ARRAY_SIZE(s3c_adc_resource),
 	.resource	= s3c_adc_resource,
@@ -939,31 +939,19 @@ void __init s3c24xx_ts_set_platdata(struct s3c2410_ts_mach_info *hard_s3c2410ts_
 #endif /* CONFIG_PLAT_S3C24XX */
 
 #ifdef CONFIG_SAMSUNG_DEV_TS
-static struct resource s3c_ts_resource[] = {
-	[0] = DEFINE_RES_MEM(SAMSUNG_PA_ADC, SZ_256),
-	[1] = DEFINE_RES_IRQ(IRQ_TC),
-};
-
 static struct s3c2410_ts_mach_info default_ts_data __initdata = {
 	.delay			= 10000,
 	.presc			= 49,
 	.oversampling_shift	= 2,
 };
 
-struct platform_device s3c_device_ts = {
-	.name		= "s3c64xx-ts",
-	.id		= -1,
-	.num_resources	= ARRAY_SIZE(s3c_ts_resource),
-	.resource	= s3c_ts_resource,
-};
-
-void __init s3c24xx_ts_set_platdata(struct s3c2410_ts_mach_info *pd)
+void __init s3c64xx_ts_set_platdata(struct s3c2410_ts_mach_info *pd)
 {
 	if (!pd)
 		pd = &default_ts_data;
 
 	s3c_set_platdata(pd, sizeof(struct s3c2410_ts_mach_info),
-			 &s3c_device_ts);
+			 &s3c_device_adc);
 }
 #endif /* CONFIG_SAMSUNG_DEV_TS */
 

drivers/gpio/gpio-samsung.c → arch/arm/plat-samsung/gpio-samsung.c

@@ -30,6 +30,7 @@
 
 #include <asm/irq.h>
 
+#include <mach/irqs.h>
 #include <mach/map.h>
 #include <mach/regs-gpio.h>
 #include <mach/gpio-samsung.h>
@@ -1176,14 +1177,16 @@ static __init int samsung_gpiolib_init(void)
 	 * interfaces. For legacy (non-DT) platforms this driver is used.
 	 */
 	if (of_have_populated_dt())
-		return -ENODEV;
-
-	samsung_gpiolib_set_cfg(samsung_gpio_cfgs, ARRAY_SIZE(samsung_gpio_cfgs));
+		return 0;
 
 	if (soc_is_s3c24xx()) {
+		samsung_gpiolib_set_cfg(samsung_gpio_cfgs,
+				ARRAY_SIZE(samsung_gpio_cfgs));
 		s3c24xx_gpiolib_add_chips(s3c24xx_gpios,
 				ARRAY_SIZE(s3c24xx_gpios), S3C24XX_VA_GPIO);
 	} else if (soc_is_s3c64xx()) {
+		samsung_gpiolib_set_cfg(samsung_gpio_cfgs,
+				ARRAY_SIZE(samsung_gpio_cfgs));
 		samsung_gpiolib_add_2bit_chips(s3c64xx_gpios_2bit,
 				ARRAY_SIZE(s3c64xx_gpios_2bit),
 				S3C64XX_VA_GPIO + 0xE0, 0x20);
@@ -1192,9 +1195,6 @@ static __init int samsung_gpiolib_init(void)
 				S3C64XX_VA_GPIO);
 		samsung_gpiolib_add_4bit2_chips(s3c64xx_gpios_4bit2,
 				ARRAY_SIZE(s3c64xx_gpios_4bit2));
-	} else {
-		WARN(1, "Unknown SoC in gpio-samsung, no GPIOs added\n");
-		return -ENODEV;
 	}
 
 	return 0;

arch/arm/plat-samsung/init.c

@@ -152,6 +152,11 @@ static int __init s3c_arch_init(void)
 {
 	int ret;
 
+	/* init is only needed for ATAGS based platforms */
+	if (!IS_ENABLED(CONFIG_ATAGS) ||
+	    (!soc_is_s3c24xx() && !soc_is_s3c64xx()))
+		return 0;
+
 	// do the correct init for cpu
 
 	if (cpu == NULL) {

arch/arm/plat-samsung/pm.c

@@ -23,14 +23,10 @@
 #include <asm/cacheflush.h>
 #include <asm/suspend.h>
 
-#ifdef CONFIG_SAMSUNG_ATAGS
 #include <mach/map.h>
-#ifndef CONFIG_ARCH_EXYNOS
 #include <mach/regs-clock.h>
 #include <mach/regs-irq.h>
-#endif
 #include <mach/irqs.h>
-#endif
 
 #include <asm/irq.h>
 

drivers/gpio/Kconfig

@@ -344,13 +344,6 @@ config GPIO_RCAR
 	help
 	  Say yes here to support GPIO on Renesas R-Car SoCs.
 
-config GPIO_SAMSUNG
-	bool
-	depends on PLAT_SAMSUNG
-	help
-	  Legacy GPIO support. Use only for platforms without support for
-	  pinctrl.
-
 config GPIO_SPEAR_SPICS
 	bool "ST SPEAr13xx SPI Chip Select as GPIO support"
 	depends on PLAT_SPEAR

drivers/gpio/Makefile

@@ -79,7 +79,6 @@ obj-$(CONFIG_GPIO_PXA)		+= gpio-pxa.o
 obj-$(CONFIG_GPIO_RC5T583)	+= gpio-rc5t583.o
 obj-$(CONFIG_GPIO_RDC321X)	+= gpio-rdc321x.o
 obj-$(CONFIG_GPIO_RCAR)		+= gpio-rcar.o
-obj-$(CONFIG_GPIO_SAMSUNG)	+= gpio-samsung.o
 obj-$(CONFIG_ARCH_SA1100)	+= gpio-sa1100.o
 obj-$(CONFIG_GPIO_SCH)		+= gpio-sch.o
 obj-$(CONFIG_GPIO_SCH311X)	+= gpio-sch311x.o

drivers/iio/adc/exynos_adc.c

@@ -35,6 +35,7 @@
 #include <linux/regulator/consumer.h>
 #include <linux/of_platform.h>
 #include <linux/err.h>
+#include <linux/input.h>
 
 #include <linux/iio/iio.h>
 #include <linux/iio/machine.h>
@@ -42,12 +43,18 @@
 #include <linux/mfd/syscon.h>
 #include <linux/regmap.h>
 
+#include <linux/platform_data/touchscreen-s3c2410.h>
+
 /* S3C/EXYNOS4412/5250 ADC_V1 registers definitions */
 #define ADC_V1_CON(x)		((x) + 0x00)
+#define ADC_V1_TSC(x)		((x) + 0x04)
 #define ADC_V1_DLY(x)		((x) + 0x08)
 #define ADC_V1_DATX(x)		((x) + 0x0C)
+#define ADC_V1_DATY(x)		((x) + 0x10)
+#define ADC_V1_UPDN(x)		((x) + 0x14)
 #define ADC_V1_INTCLR(x)	((x) + 0x18)
 #define ADC_V1_MUX(x)		((x) + 0x1c)
+#define ADC_V1_CLRINTPNDNUP(x)	((x) + 0x20)
 
 /* S3C2410 ADC registers definitions */
 #define ADC_S3C2410_MUX(x)	((x) + 0x18)
@@ -71,6 +78,30 @@
 #define ADC_S3C2410_DATX_MASK	0x3FF
 #define ADC_S3C2416_CON_RES_SEL	(1u << 3)
 
+/* touch screen always uses channel 0 */
+#define ADC_S3C2410_MUX_TS	0
+
+/* ADCTSC Register Bits */
+#define ADC_S3C2443_TSC_UD_SEN		(1u << 8)
+#define ADC_S3C2410_TSC_YM_SEN		(1u << 7)
+#define ADC_S3C2410_TSC_YP_SEN		(1u << 6)
+#define ADC_S3C2410_TSC_XM_SEN		(1u << 5)
+#define ADC_S3C2410_TSC_XP_SEN		(1u << 4)
+#define ADC_S3C2410_TSC_PULL_UP_DISABLE	(1u << 3)
+#define ADC_S3C2410_TSC_AUTO_PST	(1u << 2)
+#define ADC_S3C2410_TSC_XY_PST(x)	(((x) & 0x3) << 0)
+
+#define ADC_TSC_WAIT4INT (ADC_S3C2410_TSC_YM_SEN | \
+			 ADC_S3C2410_TSC_YP_SEN | \
+			 ADC_S3C2410_TSC_XP_SEN | \
+			 ADC_S3C2410_TSC_XY_PST(3))
+
+#define ADC_TSC_AUTOPST	(ADC_S3C2410_TSC_YM_SEN | \
+			 ADC_S3C2410_TSC_YP_SEN | \
+			 ADC_S3C2410_TSC_XP_SEN | \
+			 ADC_S3C2410_TSC_AUTO_PST | \
+			 ADC_S3C2410_TSC_XY_PST(0))
+
 /* Bit definitions for ADC_V2 */
 #define ADC_V2_CON1_SOFT_RESET	(1u << 2)
 
@@ -88,7 +119,9 @@
 /* Bit definitions common for ADC_V1 and ADC_V2 */
 #define ADC_CON_EN_START	(1u << 0)
 #define ADC_CON_EN_START_MASK	(0x3 << 0)
+#define ADC_DATX_PRESSED	(1u << 15)
 #define ADC_DATX_MASK		0xFFF
+#define ADC_DATY_MASK		0xFFF
 
 #define EXYNOS_ADC_TIMEOUT	(msecs_to_jiffies(100))
 
@@ -98,17 +131,24 @@
 struct exynos_adc {
 	struct exynos_adc_data	*data;
 	struct device		*dev;
+	struct input_dev	*input;
 	void __iomem		*regs;
 	struct regmap		*pmu_map;
 	struct clk		*clk;
 	struct clk		*sclk;
 	unsigned int		irq;
+	unsigned int		tsirq;
+	unsigned int		delay;
 	struct regulator	*vdd;
 
 	struct completion	completion;
 
 	u32			value;
 	unsigned int            version;
+
+	bool			read_ts;
+	u32			ts_x;
+	u32			ts_y;
 };
 
 struct exynos_adc_data {
@@ -197,6 +237,9 @@ static void exynos_adc_v1_init_hw(struct exynos_adc *info)
 	/* Enable 12-bit ADC resolution */
 	con1 |= ADC_V1_CON_RES;
 	writel(con1, ADC_V1_CON(info->regs));
+
+	/* set touchscreen delay */
+	writel(info->delay, ADC_V1_DLY(info->regs));
 }
 
 static void exynos_adc_v1_exit_hw(struct exynos_adc *info)
@@ -480,8 +523,8 @@ static int exynos_read_raw(struct iio_dev *indio_dev,
 	if (info->data->start_conv)
 		info->data->start_conv(info, chan->address);
 
-	timeout = wait_for_completion_timeout
-			(&info->completion, EXYNOS_ADC_TIMEOUT);
+	timeout = wait_for_completion_timeout(&info->completion,
+					      EXYNOS_ADC_TIMEOUT);
 	if (timeout == 0) {
 		dev_warn(&indio_dev->dev, "Conversion timed out! Resetting\n");
 		if (info->data->init_hw)
@@ -498,13 +541,55 @@ static int exynos_read_raw(struct iio_dev *indio_dev,
 	return ret;
 }
 
+static int exynos_read_s3c64xx_ts(struct iio_dev *indio_dev, int *x, int *y)
+{
+	struct exynos_adc *info = iio_priv(indio_dev);
+	unsigned long timeout;
+	int ret;
+
+	mutex_lock(&indio_dev->mlock);
+	info->read_ts = true;
+
+	reinit_completion(&info->completion);
+
+	writel(ADC_S3C2410_TSC_PULL_UP_DISABLE | ADC_TSC_AUTOPST,
+	       ADC_V1_TSC(info->regs));
+
+	/* Select the ts channel to be used and Trigger conversion */
+	info->data->start_conv(info, ADC_S3C2410_MUX_TS);
+
+	timeout = wait_for_completion_timeout(&info->completion,
+					      EXYNOS_ADC_TIMEOUT);
+	if (timeout == 0) {
+		dev_warn(&indio_dev->dev, "Conversion timed out! Resetting\n");
+		if (info->data->init_hw)
+			info->data->init_hw(info);
+		ret = -ETIMEDOUT;
+	} else {
+		*x = info->ts_x;
+		*y = info->ts_y;
+		ret = 0;
+	}
+
+	info->read_ts = false;
+	mutex_unlock(&indio_dev->mlock);
+
+	return ret;
+}
+
 static irqreturn_t exynos_adc_isr(int irq, void *dev_id)
 {
 	struct exynos_adc *info = (struct exynos_adc *)dev_id;
 	u32 mask = info->data->mask;
 
 	/* Read value */
-	info->value = readl(ADC_V1_DATX(info->regs)) & mask;
+	if (info->read_ts) {
+		info->ts_x = readl(ADC_V1_DATX(info->regs));
+		info->ts_y = readl(ADC_V1_DATY(info->regs));
+		writel(ADC_TSC_WAIT4INT | ADC_S3C2443_TSC_UD_SEN, ADC_V1_TSC(info->regs));
+	} else {
+		info->value = readl(ADC_V1_DATX(info->regs)) & mask;
+	}
 
 	/* clear irq */
 	if (info->data->clear_irq)
@@ -515,6 +600,46 @@ static irqreturn_t exynos_adc_isr(int irq, void *dev_id)
 	return IRQ_HANDLED;
 }
 
+/*
+ * Here we (ab)use a threaded interrupt handler to stay running
+ * for as long as the touchscreen remains pressed, we report
+ * a new event with the latest data and then sleep until the
+ * next timer tick. This mirrors the behavior of the old
+ * driver, with much less code.
+ */
+static irqreturn_t exynos_ts_isr(int irq, void *dev_id)
+{
+	struct exynos_adc *info = dev_id;
+	struct iio_dev *dev = dev_get_drvdata(info->dev);
+	u32 x, y;
+	bool pressed;
+	int ret;
+
+	while (info->input->users) {
+		ret = exynos_read_s3c64xx_ts(dev, &x, &y);
+		if (ret == -ETIMEDOUT)
+			break;
+
+		pressed = x & y & ADC_DATX_PRESSED;
+		if (!pressed) {
+			input_report_key(info->input, BTN_TOUCH, 0);
+			input_sync(info->input);
+			break;
+		}
+
+		input_report_abs(info->input, ABS_X, x & ADC_DATX_MASK);
+		input_report_abs(info->input, ABS_Y, y & ADC_DATY_MASK);
+		input_report_key(info->input, BTN_TOUCH, 1);
+		input_sync(info->input);
+
+		msleep(1);
+	};
+
+	writel(0, ADC_V1_CLRINTPNDNUP(info->regs));
+
+	return IRQ_HANDLED;
+}
+
 static int exynos_adc_reg_access(struct iio_dev *indio_dev,
 			      unsigned reg, unsigned writeval,
 			      unsigned *readval)
@@ -566,18 +691,72 @@ static int exynos_adc_remove_devices(struct device *dev, void *c)
 	return 0;
 }
 
+static int exynos_adc_ts_open(struct input_dev *dev)
+{
+	struct exynos_adc *info = input_get_drvdata(dev);
+
+	enable_irq(info->tsirq);
+
+	return 0;
+}
+
+static void exynos_adc_ts_close(struct input_dev *dev)
+{
+	struct exynos_adc *info = input_get_drvdata(dev);
+
+	disable_irq(info->tsirq);
+}
+
+static int exynos_adc_ts_init(struct exynos_adc *info)
+{
+	int ret;
+
+	if (info->tsirq <= 0)
+		return -ENODEV;
+
+	info->input = input_allocate_device();
+	if (!info->input)
+		return -ENOMEM;
+
+	info->input->evbit[0] = BIT_MASK(EV_KEY) | BIT_MASK(EV_ABS);
+	info->input->keybit[BIT_WORD(BTN_TOUCH)] = BIT_MASK(BTN_TOUCH);
+
+	input_set_abs_params(info->input, ABS_X, 0, 0x3FF, 0, 0);
+	input_set_abs_params(info->input, ABS_Y, 0, 0x3FF, 0, 0);
+
+	info->input->name = "S3C24xx TouchScreen";
+	info->input->id.bustype = BUS_HOST;
+	info->input->open = exynos_adc_ts_open;
+	info->input->close = exynos_adc_ts_close;
+
+	input_set_drvdata(info->input, info);
+
+	ret = input_register_device(info->input);
+	if (ret) {
+		input_free_device(info->input);
+		return ret;
+	}
+
+	disable_irq(info->tsirq);
+	ret = request_threaded_irq(info->tsirq, NULL, exynos_ts_isr,
+				   0, "touchscreen", info);
+	if (ret)
+		input_unregister_device(info->input);
+
+	return ret;
+}
+
 static int exynos_adc_probe(struct platform_device *pdev)
 {
 	struct exynos_adc *info = NULL;
 	struct device_node *np = pdev->dev.of_node;
+	struct s3c2410_ts_mach_info *pdata = dev_get_platdata(&pdev->dev);
 	struct iio_dev *indio_dev = NULL;
 	struct resource	*mem;
+	bool has_ts = false;
 	int ret = -ENODEV;
 	int irq;
 
-	if (!np)
-		return ret;
-
 	indio_dev = devm_iio_device_alloc(&pdev->dev, sizeof(struct exynos_adc));
 	if (!indio_dev) {
 		dev_err(&pdev->dev, "failed allocating iio device\n");
@@ -613,8 +792,14 @@ static int exynos_adc_probe(struct platform_device *pdev)
 		dev_err(&pdev->dev, "no irq resource?\n");
 		return irq;
 	}
-
 	info->irq = irq;
+
+	irq = platform_get_irq(pdev, 1);
+	if (irq == -EPROBE_DEFER)
+		return irq;
+
+	info->tsirq = irq;
+
 	info->dev = &pdev->dev;
 
 	init_completion(&info->completion);
@@ -680,6 +865,22 @@ static int exynos_adc_probe(struct platform_device *pdev)
 	if (info->data->init_hw)
 		info->data->init_hw(info);
 
+	/* leave out any TS related code if unreachable */
+	if (IS_REACHABLE(CONFIG_INPUT)) {
+		has_ts = of_property_read_bool(pdev->dev.of_node,
+					       "has-touchscreen") || pdata;
+	}
+
+	if (pdata)
+		info->delay = pdata->delay;
+	else
+		info->delay = 10000;
+
+	if (has_ts)
+		ret = exynos_adc_ts_init(info);
+	if (ret)
+		goto err_iio;
+
 	ret = of_platform_populate(np, exynos_adc_match, NULL, &indio_dev->dev);
 	if (ret < 0) {
 		dev_err(&pdev->dev, "failed adding child nodes\n");
@@ -691,6 +892,11 @@ static int exynos_adc_probe(struct platform_device *pdev)
 err_of_populate:
 	device_for_each_child(&indio_dev->dev, NULL,
 				exynos_adc_remove_devices);
+	if (has_ts) {
+		input_unregister_device(info->input);
+		free_irq(info->tsirq, info);
+	}
+err_iio:
 	iio_device_unregister(indio_dev);
 err_irq:
 	free_irq(info->irq, info);
@@ -710,6 +916,10 @@ static int exynos_adc_remove(struct platform_device *pdev)
 	struct iio_dev *indio_dev = platform_get_drvdata(pdev);
 	struct exynos_adc *info = iio_priv(indio_dev);
 
+	if (IS_REACHABLE(CONFIG_INPUT)) {
+		free_irq(info->tsirq, info);
+		input_unregister_device(info->input);
+	}
 	device_for_each_child(&indio_dev->dev, NULL,
 				exynos_adc_remove_devices);
 	iio_device_unregister(indio_dev);

drivers/input/touchscreen/Kconfig

@@ -365,7 +365,7 @@ config TOUCHSCREEN_IPROC
 config TOUCHSCREEN_S3C2410
 	tristate "Samsung S3C2410/generic touchscreen input driver"
 	depends on ARCH_S3C24XX || SAMSUNG_DEV_TS
-	select S3C_ADC
+	depends on S3C_ADC
 	help
 	  Say Y here if you have the s3c2410 touchscreen.
 

include/linux/platform_data/touchscreen-s3c2410.h

@@ -17,6 +17,7 @@ struct s3c2410_ts_mach_info {
 };
 
 extern void s3c24xx_ts_set_platdata(struct s3c2410_ts_mach_info *);
+extern void s3c64xx_ts_set_platdata(struct s3c2410_ts_mach_info *);
 
 /* defined by architecture to configure gpio */
 extern void s3c24xx_ts_cfg_gpio(struct platform_device *dev);

sound/soc/samsung/smartq_wm8987.c

@@ -13,15 +13,12 @@
  *
  */
 
-#include <linux/gpio.h>
+#include <linux/gpio/consumer.h>
 #include <linux/module.h>
 
 #include <sound/soc.h>
 #include <sound/jack.h>
 
-#include <mach/gpio-samsung.h>
-#include <asm/mach-types.h>
-
 #include "i2s.h"
 #include "../codecs/wm8750.h"
 
@@ -96,7 +93,7 @@ static struct snd_soc_jack_pin smartq_jack_pins[] = {
 
 static struct snd_soc_jack_gpio smartq_jack_gpios[] = {
 	{
-		.gpio		= S3C64XX_GPL(12),
+		.gpio		= -1,
 		.name		= "headphone detect",
 		.report		= SND_JACK_HEADPHONE,
 		.debounce_time	= 200,
@@ -113,7 +110,9 @@ static int smartq_speaker_event(struct snd_soc_dapm_widget *w,
 				struct snd_kcontrol *k,
 				int event)
 {
-	gpio_set_value(S3C64XX_GPK(12), SND_SOC_DAPM_EVENT_OFF(event));
+	struct gpio_desc *gpio = snd_soc_card_get_drvdata(&snd_soc_smartq);
+
+	gpiod_set_value(gpio, SND_SOC_DAPM_EVENT_OFF(event));
 
 	return 0;
 }
@@ -199,62 +198,39 @@ static struct snd_soc_card snd_soc_smartq = {
 	.num_controls = ARRAY_SIZE(wm8987_smartq_controls),
 };
 
-static struct platform_device *smartq_snd_device;
-
-static int __init smartq_init(void)
+static int smartq_probe(struct platform_device *pdev)
 {
+	struct gpio_desc *gpio;
 	int ret;
 
-	if (!machine_is_smartq7() && !machine_is_smartq5()) {
-		pr_info("Only SmartQ is supported by this ASoC driver\n");
-		return -ENODEV;
-	}
-
-	smartq_snd_device = platform_device_alloc("soc-audio", -1);
-	if (!smartq_snd_device)
-		return -ENOMEM;
-
-	platform_set_drvdata(smartq_snd_device, &snd_soc_smartq);
-
-	ret = platform_device_add(smartq_snd_device);
-	if (ret) {
-		platform_device_put(smartq_snd_device);
-		return ret;
-	}
+	platform_set_drvdata(pdev, &snd_soc_smartq);
 
 	/* Initialise GPIOs used by amplifiers */
-	ret = gpio_request(S3C64XX_GPK(12), "amplifiers shutdown");
-	if (ret) {
-		dev_err(&smartq_snd_device->dev, "Failed to register GPK12\n");
-		goto err_unregister_device;
+	gpio = devm_gpiod_get(&pdev->dev, "amplifiers shutdown",
+			      GPIOD_OUT_HIGH);
+	if (IS_ERR(gpio)) {
+		dev_err(&pdev->dev, "Failed to register GPK12\n");
+		ret = PTR_ERR(gpio);
+		goto out;
 	}
+	snd_soc_card_set_drvdata(&snd_soc_smartq, gpio);
 
-	/* Disable amplifiers */
-	ret = gpio_direction_output(S3C64XX_GPK(12), 1);
-	if (ret) {
-		dev_err(&smartq_snd_device->dev, "Failed to configure GPK12\n");
-		goto err_free_gpio_amp_shut;
-	}
-
-	return 0;
-
-err_free_gpio_amp_shut:
-	gpio_free(S3C64XX_GPK(12));
-err_unregister_device:
-	platform_device_unregister(smartq_snd_device);
+	ret = devm_snd_soc_register_card(&pdev->dev, &snd_soc_smartq);
+	if (ret)
+		dev_err(&pdev->dev, "Failed to register card\n");
 
+out:
 	return ret;
 }
 
-static void __exit smartq_exit(void)
-{
-	gpio_free(S3C64XX_GPK(12));
-
-	platform_device_unregister(smartq_snd_device);
-}
+static struct platform_driver smartq_driver = {
+	.driver = {
+		.name = "smartq-audio",
+	},
+	.probe = smartq_probe,
+};
 
-module_init(smartq_init);
-module_exit(smartq_exit);
+module_platform_driver(smartq_driver);
 
 /* Module information */
 MODULE_AUTHOR("Maurus Cuelenaere <mcuelenaere@gmail.com>");