[PATCH 4/4] ARM: S5PC100: Add keypad device to the SMDKC100 board
Kukjin Kim
kgene.kim at samsung.com
Mon Jun 21 19:43:55 EDT 2010
From: Naveen Krishna Ch <ch.naveen at samsung.com>
This patch is to support keypad device to the SMDKC100 board.
Signed-off-by: Naveen Krishna Ch <ch.naveen at samsung.com>
Signed-off-by: Kukjin Kim <kgene.kim at samsung.com>
---
arch/arm/mach-s5pc100/Kconfig | 7 ++++++
arch/arm/mach-s5pc100/Makefile | 1 +
arch/arm/mach-s5pc100/include/mach/map.h | 3 +-
arch/arm/mach-s5pc100/mach-smdkc100.c | 24 +++++++++++++++++++++
arch/arm/mach-s5pc100/setup-keypad.c | 34 ++++++++++++++++++++++++++++++
5 files changed, 68 insertions(+), 1 deletions(-)
create mode 100644 arch/arm/mach-s5pc100/setup-keypad.c
diff --git a/arch/arm/mach-s5pc100/Kconfig b/arch/arm/mach-s5pc100/Kconfig
index b2a11df..a3f5695 100644
--- a/arch/arm/mach-s5pc100/Kconfig
+++ b/arch/arm/mach-s5pc100/Kconfig
@@ -25,6 +25,11 @@ config S5PC100_SETUP_I2C1
help
Common setup code for i2c bus 1.
+config S5PC100_SETUP_KEYPAD
+ bool
+ help
+ Common setup code for KEYPAD GPIO configurations.
+
config S5PC100_SETUP_SDHCI
bool
select S5PC100_SETUP_SDHCI_GPIO
@@ -44,8 +49,10 @@ config MACH_SMDKC100
select S3C_DEV_HSMMC
select S3C_DEV_HSMMC1
select S3C_DEV_HSMMC2
+ select SAMSUNG_DEV_KEYPAD
select S5PC100_SETUP_FB_24BPP
select S5PC100_SETUP_I2C1
+ select S5PC100_SETUP_KEYPAD
select S5PC100_SETUP_SDHCI
help
Machine support for the Samsung SMDKC100
diff --git a/arch/arm/mach-s5pc100/Makefile b/arch/arm/mach-s5pc100/Makefile
index 543f3de..69cfd34 100644
--- a/arch/arm/mach-s5pc100/Makefile
+++ b/arch/arm/mach-s5pc100/Makefile
@@ -19,6 +19,7 @@ obj-$(CONFIG_CPU_S5PC100) += dma.o
obj-$(CONFIG_S5PC100_SETUP_FB_24BPP) += setup-fb-24bpp.o
obj-$(CONFIG_S5PC100_SETUP_I2C1) += setup-i2c1.o
+obj-$(CONFIG_S5PC100_SETUP_KEYPAD) += setup-keypad.o
obj-$(CONFIG_S5PC100_SETUP_SDHCI) += setup-sdhci.o
obj-$(CONFIG_S5PC100_SETUP_SDHCI_GPIO) += setup-sdhci-gpio.o
diff --git a/arch/arm/mach-s5pc100/include/mach/map.h b/arch/arm/mach-s5pc100/include/mach/map.h
index cadae43..eb57d7f 100644
--- a/arch/arm/mach-s5pc100/include/mach/map.h
+++ b/arch/arm/mach-s5pc100/include/mach/map.h
@@ -129,10 +129,11 @@
#define S3C_PA_HSMMC0 S5PC100_PA_HSMMC(0)
#define S3C_PA_HSMMC1 S5PC100_PA_HSMMC(1)
#define S3C_PA_HSMMC2 S5PC100_PA_HSMMC(2)
-#define S3C_PA_KEYPAD S5PC100_PA_KEYPAD
#define S3C_PA_TSADC S5PC100_PA_TSADC
#define S3C_PA_ONENAND S5PC100_PA_ONENAND
#define S3C_PA_ONENAND_BUF S5PC100_PA_ONENAND_BUF
#define S3C_SZ_ONENAND_BUF S5PC100_SZ_ONENAND_BUF
+#define SAMSUNG_PA_KEYPAD S5PC100_PA_KEYPAD
+
#endif /* __ASM_ARCH_C100_MAP_H */
diff --git a/arch/arm/mach-s5pc100/mach-smdkc100.c b/arch/arm/mach-s5pc100/mach-smdkc100.c
index af22f82..d006873 100644
--- a/arch/arm/mach-s5pc100/mach-smdkc100.c
+++ b/arch/arm/mach-s5pc100/mach-smdkc100.c
@@ -22,6 +22,7 @@
#include <linux/i2c.h>
#include <linux/fb.h>
#include <linux/delay.h>
+#include <linux/input.h>
#include <asm/mach/arch.h>
#include <asm/mach/map.h>
@@ -42,6 +43,7 @@
#include <plat/s5pc100.h>
#include <plat/fb.h>
#include <plat/iic.h>
+#include <plat/keypad.h>
/* Following are default values for UCON, ULCON and UFCON UART registers */
#define S5PC100_UCON_DEFAULT (S3C2410_UCON_TXILEVEL | \
@@ -149,6 +151,25 @@ static struct s3c_fb_platdata smdkc100_lcd_pdata __initdata = {
.setup_gpio = s5pc100_fb_gpio_setup_24bpp,
};
+static uint32_t smdkc100_keymap[] __initdata = {
+ /* KEY(row, col, keycode) */
+ KEY(0, 3, KEY_1), KEY(0, 4, KEY_2), KEY(0, 5, KEY_3),
+ KEY(0, 6, KEY_4), KEY(0, 7, KEY_5),
+ KEY(1, 3, KEY_A), KEY(1, 4, KEY_B), KEY(1, 5, KEY_C),
+ KEY(1, 6, KEY_D), KEY(1, 7, KEY_E)
+};
+
+static struct matrix_keymap_data smdkc100_keymap_data __initdata = {
+ .keymap = smdkc100_keymap,
+ .keymap_size = ARRAY_SIZE(smdkc100_keymap),
+};
+
+static struct samsung_keypad_platdata smdkc100_keypad_data __initdata = {
+ .keymap_data = &smdkc100_keymap_data,
+ .rows = 2,
+ .cols = 8,
+};
+
static struct platform_device *smdkc100_devices[] __initdata = {
&s3c_device_i2c0,
&s3c_device_i2c1,
@@ -158,6 +179,7 @@ static struct platform_device *smdkc100_devices[] __initdata = {
&s3c_device_hsmmc2,
&smdkc100_lcd_powerdev,
&s5pc100_device_iis0,
+ &samsung_device_keypad,
&s5pc100_device_ac97,
};
@@ -178,6 +200,8 @@ static void __init smdkc100_machine_init(void)
s3c_fb_set_platdata(&smdkc100_lcd_pdata);
+ samsung_keypad_set_platdata(&smdkc100_keypad_data);
+
/* LCD init */
gpio_request(S5PC100_GPD(0), "GPD");
gpio_request(S5PC100_GPH0(6), "GPH0");
diff --git a/arch/arm/mach-s5pc100/setup-keypad.c b/arch/arm/mach-s5pc100/setup-keypad.c
new file mode 100644
index 0000000..d0837a7
--- /dev/null
+++ b/arch/arm/mach-s5pc100/setup-keypad.c
@@ -0,0 +1,34 @@
+/* linux/arch/arm/mach-s5pc100/setup-keypad.c
+ *
+ * Copyright (c) 2010 Samsung Electronics Co., Ltd.
+ * http://www.samsung.com/
+ *
+ * GPIO configuration for S5PC100 KeyPad 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/gpio.h>
+#include <plat/gpio-cfg.h>
+
+void samsung_keypad_cfg_gpio(unsigned int rows, unsigned int cols)
+{
+ unsigned int gpio;
+ unsigned int end;
+
+ /* Set all the necessary GPH3 pins to special-function 3: KP_ROW[x] */
+ end = S5PC100_GPH3(rows);
+ for (gpio = S5PC100_GPH3(0); gpio < end; gpio++) {
+ s3c_gpio_cfgpin(gpio, S3C_GPIO_SFN(3));
+ s3c_gpio_setpull(gpio, S3C_GPIO_PULL_NONE);
+ }
+
+ /* Set all the necessary GPH2 pins to special-function 3: KP_COL[x] */
+ end = S5PC100_GPH2(cols);
+ for (gpio = S5PC100_GPH2(0); gpio < end; gpio++) {
+ s3c_gpio_cfgpin(gpio, S3C_GPIO_SFN(3));
+ s3c_gpio_setpull(gpio, S3C_GPIO_PULL_NONE);
+ }
+}
--
1.6.2.5
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