ARM: s3c: remove adc.c

This driver could not be enabled on s3c64xx for a long time
because of the ARCH_MULTIPLATFORM dependency, so remove it.
Acked-by: Mark Brown <broonie@kernel.org>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>

arch/arm/mach-s3c/Kconfig

@@ -63,16 +63,6 @@ config S3C_GPIO_TRACK
 	  Internal configuration option to enable the s3c specific gpio
 	  chip tracking if the platform requires it.
 
-# ADC driver
-
-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
-	  this resource.
-
 # device definitions to compile in
 
 config S3C_DEV_HSMMC
@@ -165,11 +155,6 @@ config S3C_DEV_RTC
 	help
 	  Compile in platform device definition for RTC
 
-config SAMSUNG_DEV_ADC
-	bool
-	help
-	  Compile in platform device definition for ADC controller
-
 config S3C64XX_DEV_SPI0
 	bool
 	help

arch/arm/mach-s3c/Kconfig.s3c64xx

@@ -125,7 +125,6 @@ config MACH_WLF_CRAGG_6410
 	select S3C_DEV_USB_HOST
 	select S3C_DEV_USB_HSOTG
 	select S3C_DEV_WDT
-	select SAMSUNG_DEV_ADC
 	select SAMSUNG_DEV_KEYPAD
 	select SAMSUNG_DEV_PWM
 	help

arch/arm/mach-s3c/Makefile

@@ -8,10 +8,6 @@ include $(src)/Makefile.s3c64xx
 
 obj-y				+= init.o cpu.o
 
-# ADC
-
-obj-$(CONFIG_S3C_ADC)	+= adc.o
-
 # devices
 
 obj-$(CONFIG_SAMSUNG_ATAGS)	+= platformdata.o

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

@@ -58,7 +58,6 @@
 #include "keypad.h"
 #include "devs.h"
 #include "cpu.h"
-#include <linux/soc/samsung/s3c-adc.h>
 #include <linux/platform_data/i2c-s3c2410.h>
 #include "pm.h"
 

arch/arm/mach-s3c/regs-adc.h

-/* SPDX-License-Identifier: GPL-2.0 */
-/*
- * Copyright (c) 2004 Shannon Holland <holland@loser.net>
- *
- * S3C2410 ADC registers
- */
-
-#ifndef __ASM_ARCH_REGS_ADC_H
-#define __ASM_ARCH_REGS_ADC_H "regs-adc.h"
-
-#define S3C2410_ADCREG(x) (x)
-
-#define S3C2410_ADCCON	   S3C2410_ADCREG(0x00)
-#define S3C2410_ADCTSC	   S3C2410_ADCREG(0x04)
-#define S3C2410_ADCDLY	   S3C2410_ADCREG(0x08)
-#define S3C2410_ADCDAT0	   S3C2410_ADCREG(0x0C)
-#define S3C2410_ADCDAT1	   S3C2410_ADCREG(0x10)
-#define S3C64XX_ADCUPDN		S3C2410_ADCREG(0x14)
-#define S3C2443_ADCMUX		S3C2410_ADCREG(0x18)
-#define S3C64XX_ADCCLRINT	S3C2410_ADCREG(0x18)
-#define S5P_ADCMUX		S3C2410_ADCREG(0x1C)
-#define S3C64XX_ADCCLRINTPNDNUP	S3C2410_ADCREG(0x20)
-
-
-/* ADCCON Register Bits */
-#define S3C64XX_ADCCON_RESSEL		(1<<16)
-#define S3C2410_ADCCON_ECFLG		(1<<15)
-#define S3C2410_ADCCON_PRSCEN		(1<<14)
-#define S3C2410_ADCCON_PRSCVL(x)	(((x)&0xFF)<<6)
-#define S3C2410_ADCCON_PRSCVLMASK	(0xFF<<6)
-#define S3C2410_ADCCON_SELMUX(x)	(((x)&0x7)<<3)
-#define S3C2410_ADCCON_MUXMASK		(0x7<<3)
-#define S3C2416_ADCCON_RESSEL		(1 << 3)
-#define S3C2410_ADCCON_STDBM		(1<<2)
-#define S3C2410_ADCCON_READ_START	(1<<1)
-#define S3C2410_ADCCON_ENABLE_START	(1<<0)
-#define S3C2410_ADCCON_STARTMASK	(0x3<<0)
-
-
-/* ADCTSC Register Bits */
-#define S3C2443_ADCTSC_UD_SEN		(1 << 8)
-#define S3C2410_ADCTSC_YM_SEN		(1<<7)
-#define S3C2410_ADCTSC_YP_SEN		(1<<6)
-#define S3C2410_ADCTSC_XM_SEN		(1<<5)
-#define S3C2410_ADCTSC_XP_SEN		(1<<4)
-#define S3C2410_ADCTSC_PULL_UP_DISABLE	(1<<3)
-#define S3C2410_ADCTSC_AUTO_PST		(1<<2)
-#define S3C2410_ADCTSC_XY_PST(x)	(((x)&0x3)<<0)
-
-/* ADCDAT0 Bits */
-#define S3C2410_ADCDAT0_UPDOWN		(1<<15)
-#define S3C2410_ADCDAT0_AUTO_PST	(1<<14)
-#define S3C2410_ADCDAT0_XY_PST		(0x3<<12)
-#define S3C2410_ADCDAT0_XPDATA_MASK	(0x03FF)
-
-/* ADCDAT1 Bits */
-#define S3C2410_ADCDAT1_UPDOWN		(1<<15)
-#define S3C2410_ADCDAT1_AUTO_PST	(1<<14)
-#define S3C2410_ADCDAT1_XY_PST		(0x3<<12)
-#define S3C2410_ADCDAT1_YPDATA_MASK	(0x03FF)
-
-#endif /* __ASM_ARCH_REGS_ADC_H */
-
-

include/linux/soc/samsung/s3c-adc.h

-/* SPDX-License-Identifier: GPL-2.0 */
-/*
- * Copyright (c) 2008 Simtec Electronics
- *	http://armlinux.simtec.co.uk/	
- *	Ben Dooks <ben@simtec.co.uk>
- *
- * S3C ADC driver information
- */
-
-#ifndef __LINUX_SOC_SAMSUNG_S3C_ADC_H
-#define __LINUX_SOC_SAMSUNG_S3C_ADC_H __FILE__
-
-struct s3c_adc_client;
-struct platform_device;
-
-extern int s3c_adc_start(struct s3c_adc_client *client,
-			 unsigned int channel, unsigned int nr_samples);
-
-extern int s3c_adc_read(struct s3c_adc_client *client, unsigned int ch);
-
-extern struct s3c_adc_client *
-	s3c_adc_register(struct platform_device *pdev,
-			 void (*select)(struct s3c_adc_client *client,
-					unsigned selected),
-			 void (*conv)(struct s3c_adc_client *client,
-				      unsigned d0, unsigned d1,
-				      unsigned *samples_left),
-			 unsigned int is_ts);
-
-extern void s3c_adc_release(struct s3c_adc_client *client);
-
-#endif /* __LINUX_SOC_SAMSUNG_S3C_ADC_H */