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| author | Tony SIM <chinyeow.sim.xt@renesas.com> | 2010-12-09 01:55:55 +0000 |
|---|---|---|
| committer | Paul Mundt <lethal@linux-sh.org> | 2010-12-13 14:11:14 +0900 |
| commit | cd8ab0041d131e8e210c4b5ded7257da50473dcb (patch) | |
| tree | df7f2dde45753c26127ca706e785506010229965 /arch/arm/mach-shmobile/board-mackerel.c | |
| parent | 80f1dc7cc9341b160beb9c833edc1cd131f45a7f (diff) | |
| download | kernel_samsung_smdk4412-cd8ab0041d131e8e210c4b5ded7257da50473dcb.zip kernel_samsung_smdk4412-cd8ab0041d131e8e210c4b5ded7257da50473dcb.tar.gz kernel_samsung_smdk4412-cd8ab0041d131e8e210c4b5ded7257da50473dcb.tar.bz2 | |
ARM: mach-shmobile: mackerel: Add keypad tca6408a support
This patch maps key0/key1/key2/key3 as HOME/MENU/BACK/POWER buttons
on mackerel board.
Signed-off-by: Tony SIM <chinyeow.sim.xt@renesas.com>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
Diffstat (limited to 'arch/arm/mach-shmobile/board-mackerel.c')
| -rw-r--r-- | arch/arm/mach-shmobile/board-mackerel.c | 38 |
1 files changed, 38 insertions, 0 deletions
diff --git a/arch/arm/mach-shmobile/board-mackerel.c b/arch/arm/mach-shmobile/board-mackerel.c index a0caa9e..3e30a52 100644 --- a/arch/arm/mach-shmobile/board-mackerel.c +++ b/arch/arm/mach-shmobile/board-mackerel.c @@ -36,6 +36,7 @@ #include <linux/mtd/physmap.h> #include <linux/smsc911x.h> #include <linux/sh_intc.h> +#include <linux/tca6416_keypad.h> #include <linux/usb/r8a66597.h> #include <video/sh_mobile_lcdc.h> @@ -413,11 +414,44 @@ static struct platform_device *mackerel_devices[] __initdata = { &fsi_ak4643_device, }; +/* Keypad Initialization */ +#define KEYPAD_BUTTON(ev_type, ev_code, act_low) \ +{ \ + .type = ev_type, \ + .code = ev_code, \ + .active_low = act_low, \ +} + +#define KEYPAD_BUTTON_LOW(event_code) KEYPAD_BUTTON(EV_KEY, event_code, 1) + +static struct tca6416_button mackerel_gpio_keys[] = { + KEYPAD_BUTTON_LOW(KEY_HOME), + KEYPAD_BUTTON_LOW(KEY_MENU), + KEYPAD_BUTTON_LOW(KEY_BACK), + KEYPAD_BUTTON_LOW(KEY_POWER), +}; + +static struct tca6416_keys_platform_data mackerel_tca6416_keys_info = { + .buttons = mackerel_gpio_keys, + .nbuttons = ARRAY_SIZE(mackerel_gpio_keys), + .rep = 1, + .use_polling = 0, + .pinmask = 0x000F, +}; + /* I2C */ +#define IRQ9 evt2irq(0x0320) + static struct i2c_board_info i2c0_devices[] = { { I2C_BOARD_INFO("ak4643", 0x13), }, + /* Keypad */ + { + I2C_BOARD_INFO("tca6408-keys", 0x20), + .platform_data = &mackerel_tca6416_keys_info, + .irq = IRQ9, + }, }; #define IRQ21 evt2irq(0x32a0) @@ -525,6 +559,10 @@ static void __init mackerel_init(void) intc_set_priority(IRQ_FSI, 3); /* irq priority FSI(3) > SMSC911X(2) */ + /* enable Keypad */ + gpio_request(GPIO_FN_IRQ9_42, NULL); + set_irq_type(IRQ9, IRQ_TYPE_LEVEL_HIGH); + /* enable Accelerometer */ gpio_request(GPIO_FN_IRQ21, NULL); set_irq_type(IRQ21, IRQ_TYPE_LEVEL_HIGH); |