[PATCH 2/4] ARM: S3C64XX: Add keypad device to the SMDK6410 board
Kukjin Kim
kgene.kim at samsung.com
Mon Jun 21 19:43:53 EDT 2010
From: Naveen Krishna Ch <ch.naveen at samsung.com>
This patch is to support keypad device to the SMDK6410 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-s3c64xx/Kconfig | 7 ++++++
arch/arm/mach-s3c64xx/Makefile | 1 +
arch/arm/mach-s3c64xx/clock.c | 6 +++++
arch/arm/mach-s3c64xx/include/mach/map.h | 2 +
arch/arm/mach-s3c64xx/mach-smdk6410.c | 24 +++++++++++++++++++++
arch/arm/mach-s3c64xx/setup-keypad.c | 34 ++++++++++++++++++++++++++++++
6 files changed, 74 insertions(+), 0 deletions(-)
create mode 100644 arch/arm/mach-s3c64xx/setup-keypad.c
diff --git a/arch/arm/mach-s3c64xx/Kconfig b/arch/arm/mach-s3c64xx/Kconfig
index f5a5972..08fdb7f 100644
--- a/arch/arm/mach-s3c64xx/Kconfig
+++ b/arch/arm/mach-s3c64xx/Kconfig
@@ -62,6 +62,11 @@ config S3C64XX_SETUP_FB_24BPP
help
Common setup code for S3C64XX with an 24bpp RGB display helper.
+config S3C64XX_SETUP_KEYPAD
+ bool
+ help
+ Common setup code for S3C64XX KEYPAD GPIO configurations
+
config S3C64XX_SETUP_SDHCI_GPIO
bool
help
@@ -100,10 +105,12 @@ config MACH_SMDK6410
select S3C_DEV_USB_HOST
select S3C_DEV_USB_HSOTG
select S3C_DEV_WDT
+ select SAMSUNG_DEV_KEYPAD
select HAVE_S3C2410_WATCHDOG
select S3C64XX_SETUP_SDHCI
select S3C64XX_SETUP_I2C1
select S3C64XX_SETUP_FB_24BPP
+ select S3C64XX_SETUP_KEYPAD
help
Machine support for the Samsung SMDK6410
diff --git a/arch/arm/mach-s3c64xx/Makefile b/arch/arm/mach-s3c64xx/Makefile
index 9d10069..b1b4d10 100644
--- a/arch/arm/mach-s3c64xx/Makefile
+++ b/arch/arm/mach-s3c64xx/Makefile
@@ -35,6 +35,7 @@ obj-$(CONFIG_S3C64XX_DMA) += dma.o
obj-$(CONFIG_S3C64XX_SETUP_I2C0) += setup-i2c0.o
obj-$(CONFIG_S3C64XX_SETUP_I2C1) += setup-i2c1.o
+obj-$(CONFIG_S3C64XX_SETUP_KEYPAD) += setup-keypad.o
obj-$(CONFIG_S3C64XX_SETUP_SDHCI) += setup-sdhci.o
obj-$(CONFIG_S3C64XX_SETUP_FB_24BPP) += setup-fb-24bpp.o
obj-$(CONFIG_S3C64XX_SETUP_SDHCI_GPIO) += setup-sdhci-gpio.o
diff --git a/arch/arm/mach-s3c64xx/clock.c b/arch/arm/mach-s3c64xx/clock.c
index fbd85a9..ec8f097 100644
--- a/arch/arm/mach-s3c64xx/clock.c
+++ b/arch/arm/mach-s3c64xx/clock.c
@@ -165,6 +165,12 @@ static struct clk init_clocks_disable[] = {
.ctrlbit = S3C6410_CLKCON_PCLK_IIS2,
}, {
#endif
+ .name = "keypad",
+ .id = -1,
+ .parent = &clk_p,
+ .enable = s3c64xx_pclk_ctrl,
+ .ctrlbit = S3C_CLKCON_PCLK_KEYPAD,
+ }, {
.name = "spi",
.id = 0,
.parent = &clk_p,
diff --git a/arch/arm/mach-s3c64xx/include/mach/map.h b/arch/arm/mach-s3c64xx/include/mach/map.h
index e1eab3c..f57ff08 100644
--- a/arch/arm/mach-s3c64xx/include/mach/map.h
+++ b/arch/arm/mach-s3c64xx/include/mach/map.h
@@ -67,6 +67,7 @@
#define S3C64XX_PA_USB_HSOTG (0x7C000000)
#define S3C64XX_PA_WATCHDOG (0x7E004000)
#define S3C64XX_PA_RTC (0x7E005000)
+#define S3C64XX_PA_KEYPAD (0x7E00A000)
#define S3C64XX_PA_ADC (0x7E00B000)
#define S3C64XX_PA_SYSCON (0x7E00F000)
#define S3C64XX_PA_AC97 (0x7F001000)
@@ -120,5 +121,6 @@
#define S3C_PA_WDT S3C64XX_PA_WATCHDOG
#define SAMSUNG_PA_ADC S3C64XX_PA_ADC
+#define SAMSUNG_PA_KEYPAD S3C64XX_PA_KEYPAD
#endif /* __ASM_ARCH_6400_MAP_H */
diff --git a/arch/arm/mach-s3c64xx/mach-smdk6410.c b/arch/arm/mach-s3c64xx/mach-smdk6410.c
index d9a0355..52dd17e 100644
--- a/arch/arm/mach-s3c64xx/mach-smdk6410.c
+++ b/arch/arm/mach-s3c64xx/mach-smdk6410.c
@@ -17,6 +17,7 @@
#include <linux/list.h>
#include <linux/timer.h>
#include <linux/init.h>
+#include <linux/input.h>
#include <linux/serial_core.h>
#include <linux/platform_device.h>
#include <linux/io.h>
@@ -66,6 +67,7 @@
#include <plat/cpu.h>
#include <plat/adc.h>
#include <plat/ts.h>
+#include <plat/keypad.h>
#define UCON S3C2410_UCON_DEFAULT | S3C2410_UCON_UCLK
#define ULCON S3C2410_LCON_CS8 | S3C2410_LCON_PNONE | S3C2410_LCON_STOPB
@@ -242,6 +244,25 @@ static struct platform_device smdk6410_b_pwr_5v = {
};
#endif
+static uint32_t smdk6410_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 smdk6410_keymap_data __initdata = {
+ .keymap = smdk6410_keymap,
+ .keymap_size = ARRAY_SIZE(smdk6410_keymap),
+};
+
+static struct samsung_keypad_platdata smdk6410_keypad_data __initdata = {
+ .keymap_data = &smdk6410_keymap_data,
+ .rows = 2,
+ .cols = 8,
+};
+
static struct map_desc smdk6410_iodesc[] = {};
static struct platform_device *smdk6410_devices[] __initdata = {
@@ -257,6 +278,7 @@ static struct platform_device *smdk6410_devices[] __initdata = {
&s3c_device_ohci,
&s3c_device_usb_hsotg,
&s3c64xx_device_iisv4,
+ &samsung_device_keypad,
#ifdef CONFIG_REGULATOR
&smdk6410_b_pwr_5v,
@@ -636,6 +658,8 @@ static void __init smdk6410_machine_init(void)
s3c_i2c1_set_platdata(NULL);
s3c_fb_set_platdata(&smdk6410_lcd_pdata);
+ samsung_keypad_set_platdata(&smdk6410_keypad_data);
+
s3c24xx_ts_set_platdata(&s3c_ts_platform);
/* configure nCS1 width to 16 bits */
diff --git a/arch/arm/mach-s3c64xx/setup-keypad.c b/arch/arm/mach-s3c64xx/setup-keypad.c
new file mode 100644
index 0000000..abc34e4
--- /dev/null
+++ b/arch/arm/mach-s3c64xx/setup-keypad.c
@@ -0,0 +1,34 @@
+/* linux/arch/arm/mach-s3c64xx/setup-keypad.c
+ *
+ * Copyright (c) 2010 Samsung Electronics Co., Ltd.
+ * http://www.samsung.com/
+ *
+ * GPIO configuration for S3C64XX 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 GPK pins to special-function 3: KP_ROW[x] */
+ end = S3C64XX_GPK(8 + rows);
+ for (gpio = S3C64XX_GPK(8); gpio < end; gpio++) {
+ s3c_gpio_cfgpin(gpio, S3C_GPIO_SFN(3));
+ s3c_gpio_setpull(gpio, S3C_GPIO_PULL_NONE);
+ }
+
+ /* Set all the necessary GPL pins to special-function 3: KP_COL[x] */
+ end = S3C64XX_GPL(0 + cols);
+ for (gpio = S3C64XX_GPL(0); gpio < end; gpio++) {
+ s3c_gpio_cfgpin(gpio, S3C_GPIO_SFN(3));
+ s3c_gpio_setpull(gpio, S3C_GPIO_PULL_NONE);
+ }
+}
--
1.6.2.5
More information about the linux-arm-kernel
mailing list