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ARM: 7025/1: simpad: add GPIO based device definitions.

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Register keyboard, polled keyboard and I2C platform
devices based on GPIOs.

Signed-off-by: Jochen Friedrich <jochen@scram.de>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
This commit is contained in:
Jochen Friedrich 2011-08-18 21:51:06 +01:00 • committed by Russell King
parent de0bc0d1b0
commit dbd406f9d0
1 changed files with 66 additions and 1 deletions
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67
arch/arm/mach-sa1100/simpad.c
View file

@ -29,6 +29,9 @@
#include <linux/serial_core.h> #include <linux/serial_core.h>
#include <linux/ioport.h> #include <linux/ioport.h>
#include <linux/input.h>
#include <linux/gpio_keys.h>
#include <linux/i2c-gpio.h>
#include "generic.h" #include "generic.h"
@ -249,6 +252,65 @@ static void simpad_power_off(void)
} }
/*
* gpio_keys
*/
static struct gpio_keys_button simpad_button_table[] = {
{ KEY_POWER, IRQ_GPIO_POWER_BUTTON, 1, "power button" },
};
static struct gpio_keys_platform_data simpad_keys_data = {
.buttons = simpad_button_table,
.nbuttons = ARRAY_SIZE(simpad_button_table),
};
static struct platform_device simpad_keys = {
.name = "gpio-keys",
.dev = {
.platform_data = &simpad_keys_data,
},
};
static struct gpio_keys_button simpad_polled_button_table[] = {
{ KEY_PROG1, SIMPAD_UCB1X00_GPIO_PROG1, 1, "prog1 button" },
{ KEY_PROG2, SIMPAD_UCB1X00_GPIO_PROG2, 1, "prog2 button" },
{ KEY_UP, SIMPAD_UCB1X00_GPIO_UP, 1, "up button" },
{ KEY_DOWN, SIMPAD_UCB1X00_GPIO_DOWN, 1, "down button" },
{ KEY_LEFT, SIMPAD_UCB1X00_GPIO_LEFT, 1, "left button" },
{ KEY_RIGHT, SIMPAD_UCB1X00_GPIO_RIGHT, 1, "right button" },
};
static struct gpio_keys_platform_data simpad_polled_keys_data = {
.buttons = simpad_polled_button_table,
.nbuttons = ARRAY_SIZE(simpad_polled_button_table),
.poll_interval = 50,
};
static struct platform_device simpad_polled_keys = {
.name = "gpio-keys-polled",
.dev = {
.platform_data = &simpad_polled_keys_data,
},
};
/*
* i2c
*/
static struct i2c_gpio_platform_data simpad_i2c_data = {
.sda_pin = GPIO_GPIO21,
.scl_pin = GPIO_GPIO25,
.udelay = 10,
.timeout = HZ,
};
static struct platform_device simpad_i2c = {
.name = "i2c-gpio",
.id = 0,
.dev = {
.platform_data = &simpad_i2c_data,
},
};
/* /*
* MediaQ Video Device * MediaQ Video Device
@ -259,7 +321,10 @@ static struct platform_device simpad_mq200fb = {
}; };
static struct platform_device *devices[] __initdata = { static struct platform_device *devices[] __initdata = {
&simpad_mq200fb &simpad_keys,
&simpad_polled_keys,
&simpad_mq200fb,
&simpad_i2c,
}; };