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Commit 995c48ad authored by Joonyoung Shim's avatar Joonyoung Shim Committed by Kukjin Kim
Browse files

ARM: SAMSUNG: Add keypad device support 



This patch adds Samsung keypad device definition for Samsung SoCs.

Signed-off-by: default avatarJoonyoung Shim <jy0922.shim@samsung.com>
Signed-off-by: default avatarKyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: default avatarKukjin Kim <kgene.kim@samsung.com>
parent 929343ef

arch/arm/plat-samsung/Kconfig

+5 −0
Original line number Diff line number Diff line
@@ -237,6 +237,11 @@ config SAMSUNG_DEV_TS 
	help

	    Common in platform device definitions for touchscreen device



config SAMSUNG_DEV_KEYPAD

	bool

	help

	  Compile in platform device definitions for keypad



# DMA



config S3C_DMA

arch/arm/plat-samsung/Makefile

+1 −0
Original line number Diff line number Diff line
@@ -52,6 +52,7 @@ obj-$(CONFIG_S3C_DEV_RTC) += dev-rtc.o 
obj-$(CONFIG_SAMSUNG_DEV_ADC)	+= dev-adc.o

obj-$(CONFIG_SAMSUNG_DEV_IDE)	+= dev-ide.o

obj-$(CONFIG_SAMSUNG_DEV_TS)	+= dev-ts.o

obj-$(CONFIG_SAMSUNG_DEV_KEYPAD)	+= dev-keypad.o



# DMA support

arch/arm/plat-samsung/dev-keypad.c

0 → 100644
+50 −0
Original line number Diff line number Diff line 
/*

 * linux/arch/arm/plat-samsung/dev-keypad.c

 *

 * Copyright (C) 2010 Samsung Electronics Co.Ltd

 * Author: Joonyoung Shim <jy0922.shim@samsung.com>

 *

 *  This program is free software; you can redistribute  it and/or modify it

 *  under  the terms of  the GNU General  Public License as published by the

 *  Free Software Foundation;  either version 2 of the  License, or (at your

 *  option) any later version.

 *

 */



#include <linux/platform_device.h>

#include <mach/irqs.h>

#include <mach/map.h>

#include <plat/cpu.h>

#include <plat/devs.h>

#include <plat/keypad.h>



static struct resource samsung_keypad_resources[] = {

	[0] = {

		.start	= SAMSUNG_PA_KEYPAD,

		.end	= SAMSUNG_PA_KEYPAD + 0x20 - 1,

		.flags	= IORESOURCE_MEM,

	},

	[1] = {

		.start	= IRQ_KEYPAD,

		.end	= IRQ_KEYPAD,

		.flags	= IORESOURCE_IRQ,

	},

};



struct platform_device samsung_device_keypad = {

	.name		= "samsung-keypad",

	.id		= -1,

	.num_resources	= ARRAY_SIZE(samsung_keypad_resources),

	.resource	= samsung_keypad_resources,

};



void __init samsung_keypad_set_platdata(struct samsung_keypad_platdata *pd)

{

	struct samsung_keypad_platdata *npd;



	npd = s3c_set_platdata(pd, sizeof(struct samsung_keypad_platdata),

			&samsung_device_keypad);



	if (!npd->cfg_gpio)

		npd->cfg_gpio = samsung_keypad_cfg_gpio;

}

arch/arm/plat-samsung/include/plat/devs.h

+2 −0
Original line number Diff line number Diff line
@@ -102,6 +102,8 @@ extern struct platform_device s5pc100_device_iis0; 
extern struct platform_device s5pc100_device_iis1;

extern struct platform_device s5pc100_device_iis2;



extern struct platform_device samsung_device_keypad;



/* s3c2440 specific devices */



#ifdef CONFIG_CPU_S3C2440

arch/arm/plat-samsung/include/plat/keypad.h

+13 −0
Original line number Diff line number Diff line
@@ -40,4 +40,17 @@ struct samsung_keypad_platdata { 
	void (*cfg_gpio)(unsigned int rows, unsigned int cols);

};



/**

 * samsung_keypad_set_platdata - Set platform data for Samsung Keypad device.

 * @pd: Platform data to register to device.

 *

 * Register the given platform data for use with Samsung Keypad device.

 * The call will copy the platform data, so the board definitions can

 * make the structure itself __initdata.

 */

extern void samsung_keypad_set_platdata(struct samsung_keypad_platdata *pd);



/* defined by architecture to configure gpio. */

extern void samsung_keypad_cfg_gpio(unsigned int rows, unsigned int cols);



#endif /* __PLAT_SAMSUNG_KEYPAD_H */