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Commit 5bfdca14 authored by Naveen Krishna's avatar Naveen Krishna Committed by Ben Dooks
Browse files

ARM: SAMSUNG: Implements cfg_gpio function for Samsung touchscreen 



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

Signed-off-by: default avatarNaveen Krishna Ch <ch.naveen@samsung.com>
Signed-off-by: default avatarKukjin Kim <kgene.kim@samsung.com>
Signed-off-by: default avatarBen Dooks <ben-linux@fluff.org>
parent 909de0d6

arch/arm/mach-s3c2410/Kconfig

+1 −0
Original line number Diff line number Diff line
@@ -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

arch/arm/mach-s3c2410/mach-h1940.c

+1 −0
Original line number Diff line number Diff line
@@ -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,

};



/**

arch/arm/plat-s3c24xx/Kconfig

+5 −0
Original line number Diff line number Diff line
@@ -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

arch/arm/plat-s3c24xx/Makefile

+1 −0
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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

arch/arm/plat-s3c24xx/setup-ts.c

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+34 −0
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/* 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);

}