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ARM: SAMSUNG: Add keypad device support

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This patch adds Samsung keypad device definition for Samsung SoCs.

Signed-off-by: Joonyoung Shim <jy0922.shim@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
This commit is contained in:
Joonyoung Shim 2010-08-06 19:26:10 +09:00 committed by Kukjin Kim
parent 929343ef84
commit 995c48adde
5 changed files with 71 additions and 0 deletions
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5
arch/arm/plat-samsung/Kconfig
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@ -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

1
arch/arm/plat-samsung/Makefile
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@ -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

50
arch/arm/plat-samsung/dev-keypad.c Normal file
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@ -0,0 +1,50 @@
/*
* 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;
}

2
arch/arm/plat-samsung/include/plat/devs.h
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@ -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

13
arch/arm/plat-samsung/include/plat/keypad.h
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@ -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 */