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ARM: SAMSUNG: Implements cfg_gpio function for Samsung touchscreen

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This patch implements cfg_gpio function for Samsung touchscreen.
And also modifies the H1940 machine respectively.

Signed-off-by: Naveen Krishna Ch <ch.naveen@samsung.com>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
Signed-off-by: Ben Dooks <ben-linux@fluff.org>
This commit is contained in:
Naveen Krishna 2010-05-18 20:44:27 +09:00 committed by Ben Dooks
parent 909de0d67d
commit 5bfdca146e
6 changed files with 46 additions and 0 deletions
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1
arch/arm/mach-s3c2410/Kconfig
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@ -77,6 +77,7 @@ config ARCH_H1940
select PM_H1940 if PM
select S3C_DEV_USB_HOST
select S3C_DEV_NAND
select S3C2410_SETUP_TS
help
Say Y here if you are using the HP IPAQ H1940

1
arch/arm/mach-s3c2410/mach-h1940.c
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@ -146,6 +146,7 @@ static struct s3c2410_ts_mach_info h1940_ts_cfg __initdata = {
.delay = 10000,
.presc = 49,
.oversampling_shift = 2,
.cfg_gpio = s3c24xx_ts_cfg_gpio,
};
/**

5
arch/arm/plat-s3c24xx/Kconfig
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@ -164,4 +164,9 @@ config S3C24XX_SIMTEC_AUDIO
help
Add audio devices for common Simtec S3C24XX boards
config S3C2410_SETUP_TS
bool
help
Compile in platform device definition for Samsung TouchScreen.
endif

1
arch/arm/plat-s3c24xx/Makefile
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@ -38,6 +38,7 @@ obj-$(CONFIG_S3C2410_CPUFREQ_UTILS) += s3c2410-cpufreq-utils.o
# device specific setup and/or initialisation
obj-$(CONFIG_ARCH_S3C2410) += setup-i2c.o
obj-$(CONFIG_S3C2410_SETUP_TS) += setup-ts.o
# SPI gpio central GPIO functions

34
arch/arm/plat-s3c24xx/setup-ts.c Normal file
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@ -0,0 +1,34 @@
/* linux/arch/arm/plat-s3c24xx/setup-ts.c
*
* Copyright (c) 2010 Samsung Electronics Co., Ltd.
* http://www.samsung.com/
*
* Based on S3C24XX setup for i2c device
*
* 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.
*/
#include <linux/kernel.h>
#include <linux/gpio.h>
struct platform_device; /* don't need the contents */
#include <mach/hardware.h>
#include <mach/regs-gpio.h>
/**
* s3c24xx_ts_cfg_gpio - configure gpio for s3c2410 systems
*
* Configure the GPIO for the S3C2410 system, where we have external FETs
* connected to the device (later systems such as the S3C2440 integrate
* these into the device).
*/
void s3c24xx_ts_cfg_gpio(struct platform_device *dev)
{
s3c2410_gpio_cfgpin(S3C2410_GPG(12), S3C2410_GPG12_XMON);
s3c2410_gpio_cfgpin(S3C2410_GPG(13), S3C2410_GPG13_nXPON);
s3c2410_gpio_cfgpin(S3C2410_GPG(14), S3C2410_GPG14_YMON);
s3c2410_gpio_cfgpin(S3C2410_GPG(15), S3C2410_GPG15_nYPON);
}

4
arch/arm/plat-samsung/include/plat/ts.h
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@ -14,8 +14,12 @@ struct s3c2410_ts_mach_info {
int delay;
int presc;
int oversampling_shift;
void (*cfg_gpio)(struct platform_device *dev);
};
extern void s3c24xx_ts_set_platdata(struct s3c2410_ts_mach_info *);
/* defined by architecture to configure gpio */
extern void s3c24xx_ts_cfg_gpio(struct platform_device *dev);
#endif /* __ASM_ARM_TS_H */