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/*
* Button and Button LED support OMAP44xx tablet.
*
* Copyright (C) 2011 Texas Instruments
*
* Author: Dan Murphy <dmurphy@ti.com>
*
* 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/kernel.h>
#include <linux/init.h>
#include <linux/platform_device.h>
#include <linux/gpio_keys.h>
#include <linux/input.h>
#include <linux/leds.h>
#include <linux/leds_pwm.h>
#include <plat/omap_apps_brd_id.h>
#include "mux.h"
#include "board-44xx-tablet.h"
#define TABLET2_GREEN_LED_GPIO 174
#define TABLET2_GREEN_DBG2_LED_GPIO 173
static struct gpio_led tablet_gpio_leds[] = {
{
.name = "omap4:green:debug2",
.gpio = 7,
},
{
.name = "omap4:green:debug4",
.gpio = 50,
},
{
.name = "blue",
.default_trigger = "timer",
.gpio = 169,
},
{
.name = "red",
.default_trigger = "timer",
.gpio = 170,
},
{
.name = "green",
.default_trigger = "timer",
.gpio = 139,
},
};
static struct gpio_led_platform_data tablet_led_data = {
.leds = tablet_gpio_leds,
.num_leds = ARRAY_SIZE(tablet_gpio_leds),
};
static struct led_pwm tablet_pwm_leds[] = {
{
.name = "omap4:green:chrg",
.pwm_id = 1,
.max_brightness = 255,
.pwm_period_ns = 7812500,
},
};
static struct led_pwm_platform_data tablet_pwm_data = {
.num_leds = ARRAY_SIZE(tablet_pwm_leds),
.leds = tablet_pwm_leds,
};
static struct platform_device tablet_leds_pwm = {
.name = "leds_pwm",
.id = -1,
.dev = {
.platform_data = &tablet_pwm_data,
},
};
static struct platform_device tablet_leds_gpio = {
.name = "leds-gpio",
.id = -1,
.dev = {
.platform_data = &tablet_led_data,
},
};
/* GPIO_KEY for Tablet */
static struct gpio_keys_button tablet_gpio_keys_buttons[] = {
[0] = {
.code = KEY_VOLUMEUP,
.gpio = 43,
.desc = "SW1",
.active_low = 1,
},
[1] = {
.code = KEY_HOME,
.gpio = 46,
.desc = "SW2",
.active_low = 1,
.wakeup = 1,
},
[2] = {
.code = KEY_VOLUMEDOWN,
.gpio = 47,
.desc = "SW3",
.active_low = 1,
},
};
static struct gpio_keys_platform_data tablet_gpio_keys = {
.buttons = tablet_gpio_keys_buttons,
.nbuttons = ARRAY_SIZE(tablet_gpio_keys_buttons),
.rep = 0,
};
static struct platform_device tablet_gpio_keys_device = {
.name = "gpio-keys",
.id = -1,
.dev = {
.platform_data = &tablet_gpio_keys,
},
};
static struct platform_device *tablet_devices[] __initdata = {
&tablet_leds_gpio,
&tablet_leds_pwm,
&tablet_gpio_keys_device,
};
int __init tablet_button_init(void)
{
if (omap_is_board_version(OMAP4_TABLET_2_0) ||
omap_is_board_version(OMAP4_TABLET_2_1) ||
omap_is_board_version(OMAP4_TABLET_2_1_1) ||
omap_is_board_version(OMAP4_TABLET_2_1_2)) {
omap_mux_init_gpio(TABLET2_GREEN_DBG2_LED_GPIO,
OMAP_MUX_MODE3 | OMAP_PIN_OUTPUT);
omap_mux_init_gpio(TABLET2_GREEN_LED_GPIO,
OMAP_MUX_MODE3 | OMAP_PIN_OUTPUT);
tablet_gpio_leds[0].gpio = TABLET2_GREEN_DBG2_LED_GPIO;
tablet_gpio_leds[4].gpio = TABLET2_GREEN_LED_GPIO;
}
if (omap_board_uses_hsic()) {
tablet_gpio_leds[2].gpio = 104;
tablet_gpio_leds[3].gpio = 36;
}
platform_add_devices(tablet_devices, ARRAY_SIZE(tablet_devices));
return 0;
}
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