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/*
* arch/arm/mach-tegra/board-roth-leds.c
*
* Copyright (c) 2013, NVIDIA CORPORATION. All rights reserved.
*
* 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.
*
* This program is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
* more details.
*
* You should have received a copy of the GNU General Public License along
* with this program; if not, write to the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*/
#include <linux/gpio.h>
#include <linux/platform_device.h>
#include <linux/leds.h>
#include <linux/leds_pwm.h>
#include <linux/pwm.h>
#include <mach/gpio-tegra.h>
#include <mach/pinmux.h>
#include <mach/pinmux-t11.h>
#include "gpio-names.h"
#include "devices.h"
#include "board.h"
#include "board-common.h"
#include "board-roth.h"
#include "tegra-board-id.h"
#ifdef CONFIG_LEDS_PWM
static const struct tegra_pingroup_config led_pinmux = {
.pingroup = TEGRA_PINGROUP_KB_COL3,
.func = TEGRA_MUX_PWM2
};
static struct led_pwm roth_led_info[] = {
{
.name = "roth-led",
.default_trigger = "none",
.pwm_id = 2,
.active_low = 0,
.max_brightness = 255,
.pwm_period_ns = 10000000,
},
};
static struct led_pwm_platform_data roth_leds_pdata = {
.leds = roth_led_info,
.num_leds = ARRAY_SIZE(roth_led_info),
.init_gpio = TEGRA_GPIO_PQ3,
.OE_gpio = TEGRA_GPIO_PU1,
.mux = &led_pinmux,
};
static struct platform_device roth_leds_pwm_device = {
.name = "leds_pwm",
.id = -1,
.dev = {
.platform_data = &roth_leds_pdata,
},
};
#else
static struct gpio_led roth_led_info[] = {
{
.name = "roth-led",
.default_trigger = "none",
.gpio = TEGRA_GPIO_PQ3,
.active_low = 0,
.retain_state_suspended = 0,
.default_state = LEDS_GPIO_DEFSTATE_OFF,
},
};
static struct gpio_led_platform_data roth_leds_pdata = {
.leds = roth_led_info,
.num_leds = ARRAY_SIZE(roth_led_info),
};
static struct platform_device roth_leds_gpio_device = {
.name = "leds-gpio",
.id = -1,
.dev = {
.platform_data = &roth_leds_pdata,
},
};
#endif
static struct platform_device *roth_led_device[] = {
&tegra_pwfm2_device,
};
int __init roth_led_init(void)
{
int err;
#ifdef CONFIG_LEDS_PWM
platform_device_register(&roth_leds_pwm_device);
#else
platform_device_register(&roth_leds_gpio_device);
#endif
err = platform_add_devices(roth_led_device,
ARRAY_SIZE(roth_led_device));
if (err < 0) {
pr_err("LED: pwm led device registration failed\n");
return err;
}
return 0;
}
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