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/*
* arch/arm/mach-tegra/board-whistler-sensors.c
*
* Copyright (c) 2010-2011, NVIDIA, 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 as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* 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, see <http://www.gnu.org/licenses/>.
*
*/
#include <linux/delay.h>
#include <linux/i2c.h>
#include <mach/gpio.h>
#include <media/ov5650.h>
#include <linux/regulator/consumer.h>
#include <linux/err.h>
#include <linux/adt7461.h>
#include <generated/mach-types.h>
#include "gpio-names.h"
#define CAMERA1_PWDN_GPIO TEGRA_GPIO_PT2
#define CAMERA1_RESET_GPIO TEGRA_GPIO_PD2
#define CAMERA_AF_PD_GPIO TEGRA_GPIO_PT3
#define CAMERA_FLASH_EN1_GPIO TEGRA_GPIO_PBB4
#define CAMERA_FLASH_EN2_GPIO TEGRA_GPIO_PA0
#define ADXL34X_IRQ_GPIO TEGRA_GPIO_PAA1
#define ISL29018_IRQ_GPIO TEGRA_GPIO_PK2
#define ADT7461_IRQ_GPIO TEGRA_GPIO_PI2
extern void tegra_throttling_enable(bool enable);
static struct regulator *reg_avdd_cam1; /* LDO9 */
static struct regulator *reg_vdd_af; /* LDO13 */
static struct regulator *reg_vdd_mipi; /* LDO17 */
static struct regulator *reg_vddio_vi; /* LDO18 */
static int whistler_camera_init(void)
{
tegra_gpio_enable(CAMERA1_PWDN_GPIO);
gpio_request(CAMERA1_PWDN_GPIO, "camera1_powerdown");
gpio_direction_output(CAMERA1_PWDN_GPIO, 0);
tegra_gpio_enable(CAMERA1_RESET_GPIO);
gpio_request(CAMERA1_RESET_GPIO, "camera1_reset");
gpio_direction_output(CAMERA1_RESET_GPIO, 0);
tegra_gpio_enable(CAMERA_AF_PD_GPIO);
gpio_request(CAMERA_AF_PD_GPIO, "camera_autofocus");
gpio_direction_output(CAMERA_AF_PD_GPIO, 0);
gpio_export(CAMERA_AF_PD_GPIO, false);
tegra_gpio_enable(CAMERA_FLASH_EN1_GPIO);
gpio_request(CAMERA_FLASH_EN1_GPIO, "camera_flash_en1");
gpio_direction_output(CAMERA_FLASH_EN1_GPIO, 0);
gpio_export(CAMERA_FLASH_EN1_GPIO, false);
tegra_gpio_enable(CAMERA_FLASH_EN2_GPIO);
gpio_request(CAMERA_FLASH_EN2_GPIO, "camera_flash_en2");
gpio_direction_output(CAMERA_FLASH_EN2_GPIO, 0);
gpio_export(CAMERA_FLASH_EN2_GPIO, false);
gpio_set_value(CAMERA1_PWDN_GPIO, 1);
mdelay(5);
return 0;
}
static int whistler_ov5650_power_on(void)
{
gpio_set_value(CAMERA1_PWDN_GPIO, 0);
if (!reg_avdd_cam1) {
reg_avdd_cam1 = regulator_get(NULL, "vdd_cam1");
if (IS_ERR_OR_NULL(reg_avdd_cam1)) {
pr_err("whistler_ov5650_power_on: vdd_cam1 failed\n");
reg_avdd_cam1 = NULL;
return PTR_ERR(reg_avdd_cam1);
}
regulator_enable(reg_avdd_cam1);
}
mdelay(5);
if (!reg_vdd_mipi) {
reg_vdd_mipi = regulator_get(NULL, "vddio_mipi");
if (IS_ERR_OR_NULL(reg_vdd_mipi)) {
pr_err("whistler_ov5650_power_on: vddio_mipi failed\n");
reg_vdd_mipi = NULL;
return PTR_ERR(reg_vdd_mipi);
}
regulator_enable(reg_vdd_mipi);
}
gpio_set_value(CAMERA1_RESET_GPIO, 1);
mdelay(10);
gpio_set_value(CAMERA1_RESET_GPIO, 0);
mdelay(5);
gpio_set_value(CAMERA1_RESET_GPIO, 1);
mdelay(20);
return 0;
}
static int whistler_ov5650_power_off(void)
{
gpio_set_value(CAMERA1_PWDN_GPIO, 1);
gpio_set_value(CAMERA1_RESET_GPIO, 0);
if (reg_avdd_cam1) {
regulator_disable(reg_avdd_cam1);
regulator_put(reg_avdd_cam1);
reg_avdd_cam1 = NULL;
}
if (reg_vdd_af) {
regulator_disable(reg_vdd_af);
regulator_put(reg_vdd_af);
reg_vdd_af = NULL;
}
return 0;
}
struct ov5650_platform_data whistler_ov5650_data = {
.power_on = whistler_ov5650_power_on,
.power_off = whistler_ov5650_power_off,
};
static struct i2c_board_info whistler_i2c3_board_info[] = {
{
I2C_BOARD_INFO("ov5650", 0x36),
.platform_data = &whistler_ov5650_data,
},
};
static void whistler_adxl34x_init(void)
{
tegra_gpio_enable(ADXL34X_IRQ_GPIO);
gpio_request(ADXL34X_IRQ_GPIO, "adxl34x");
gpio_direction_input(ADXL34X_IRQ_GPIO);
}
static void whistler_isl29018_init(void)
{
tegra_gpio_enable(ISL29018_IRQ_GPIO);
gpio_request(ISL29018_IRQ_GPIO, "isl29018");
gpio_direction_input(ISL29018_IRQ_GPIO);
}
static struct i2c_board_info whistler_i2c1_board_info[] = {
{
I2C_BOARD_INFO("adxl34x", 0x1D),
.irq = TEGRA_GPIO_TO_IRQ(ADXL34X_IRQ_GPIO),
},
{
I2C_BOARD_INFO("isl29018", 0x44),
.irq = TEGRA_GPIO_TO_IRQ(ISL29018_IRQ_GPIO),
},
};
static void whistler_adt7461_init(void)
{
tegra_gpio_enable(ADT7461_IRQ_GPIO);
gpio_request(ADT7461_IRQ_GPIO, "adt7461");
gpio_direction_input(ADT7461_IRQ_GPIO);
}
static struct adt7461_platform_data whistler_adt7461_pdata = {
.supported_hwrev = true,
.ext_range = false,
.therm2 = true,
.conv_rate = 0x05,
.offset = 0,
.hysteresis = 0,
.shutdown_ext_limit = 115,
.shutdown_local_limit = 120,
.throttling_ext_limit = 90,
.alarm_fn = tegra_throttling_enable,
};
static struct i2c_board_info whistler_i2c4_board_info[] = {
{
I2C_BOARD_INFO("adt7461", 0x4C),
.irq = TEGRA_GPIO_TO_IRQ(ADT7461_IRQ_GPIO),
.platform_data = &whistler_adt7461_pdata,
},
};
int __init whistler_sensors_init(void)
{
whistler_camera_init();
whistler_adxl34x_init();
whistler_isl29018_init();
whistler_adt7461_init();
i2c_register_board_info(0, whistler_i2c1_board_info,
ARRAY_SIZE(whistler_i2c1_board_info));
i2c_register_board_info(4, whistler_i2c4_board_info,
ARRAY_SIZE(whistler_i2c4_board_info));
i2c_register_board_info(3, whistler_i2c3_board_info,
ARRAY_SIZE(whistler_i2c3_board_info));
return 0;
}
int __init whistler_sensor_late_init(void)
{
int ret;
if (!machine_is_whistler())
return 0;
reg_vddio_vi = regulator_get(NULL, "vddio_vi");
if (IS_ERR_OR_NULL(reg_vddio_vi)) {
pr_err("%s: Couldn't get regulator vddio_vi\n", __func__);
return PTR_ERR(reg_vddio_vi);
}
/* set vddio_vi voltage to 1.8v */
ret = regulator_set_voltage(reg_vddio_vi, 1800*1000, 1800*1000);
if (ret) {
pr_err("%s: Failed to set vddio_vi to 1.8v\n", __func__);
goto fail_put_regulator;
}
regulator_put(reg_vddio_vi);
return 0;
fail_put_regulator:
regulator_put(reg_vddio_vi);
return ret;
}
late_initcall(whistler_sensor_late_init);
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