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/*
* Copyright 2008-2009 Freescale Semiconductor, Inc. All Rights Reserved.
*/
/*
* The code contained herein is licensed under the GNU General Public
* License. You may obtain a copy of the GNU General Public License
* Version 2 or later at the following locations:
*
* http://www.opensource.org/licenses/gpl-license.html
* http://www.gnu.org/copyleft/gpl.html
*/
/*!
* @file mxc_bt.c
*
* @brief MXC Thirty party Bluetooth
*
*/
#include <linux/module.h>
#include <linux/platform_device.h>
#include <linux/kernel.h>
#include <linux/init.h>
#include <linux/regulator/consumer.h>
static struct regulator *bt_vdd;
static struct regulator *bt_vdd_parent;
static struct regulator *bt_vusb;
static struct regulator *bt_vusb_parent;
/*!
* This function poweron the bluetooth hardware module
*
* @param pdev Pointer to the platform device
* @return 0 on success, -1 otherwise.
*/
static int mxc_bt_probe(struct platform_device *pdev)
{
struct mxc_bt_platform_data *platform_data;
platform_data = (struct mxc_bt_platform_data *)pdev->dev.platform_data;
if (platform_data->bt_vdd) {
bt_vdd = regulator_get(&pdev->dev, platform_data->bt_vdd);
regulator_enable(bt_vdd);
}
if (platform_data->bt_vdd_parent) {
bt_vdd_parent =
regulator_get(&pdev->dev, platform_data->bt_vdd_parent);
regulator_enable(bt_vdd_parent);
}
if (platform_data->bt_vusb) {
bt_vusb = regulator_get(&pdev->dev, platform_data->bt_vusb);
regulator_enable(bt_vusb);
}
if (platform_data->bt_vusb_parent) {
bt_vusb_parent =
regulator_get(&pdev->dev, platform_data->bt_vusb_parent);
regulator_enable(bt_vusb_parent);
}
if (platform_data->bt_reset != NULL)
platform_data->bt_reset();
return 0;
}
/*!
* This function poweroff the bluetooth hardware module
*
* @param pdev Pointer to the platform device
* @return 0 on success, -1 otherwise.
*/
static int mxc_bt_remove(struct platform_device *pdev)
{
struct mxc_bt_platform_data *platform_data;
platform_data = (struct mxc_bt_platform_data *)pdev->dev.platform_data;
if (bt_vdd) {
regulator_disable(bt_vdd);
regulator_put(bt_vdd);
}
if (bt_vdd_parent) {
regulator_disable(bt_vdd_parent);
regulator_put(bt_vdd_parent);
}
if (bt_vusb) {
regulator_disable(bt_vusb);
regulator_put(bt_vusb);
}
if (bt_vusb_parent) {
regulator_disable(bt_vusb_parent);
regulator_put(bt_vusb_parent);
}
return 0;
}
static struct platform_driver bluetooth_driver = {
.driver = {
.name = "mxc_bt",
},
.probe = mxc_bt_probe,
.remove = mxc_bt_remove,
};
/*!
* Register bluetooth driver module
*
*/
static __init int bluetooth_init(void)
{
return platform_driver_register(&bluetooth_driver);
}
/*!
* Exit and free the bluetooth module
*
*/
static void __exit bluetooth_exit(void)
{
platform_driver_unregister(&bluetooth_driver);
}
module_init(bluetooth_init);
module_exit(bluetooth_exit);
MODULE_AUTHOR("Freescale Semiconductor, Inc.");
MODULE_DESCRIPTION("MXC Thirty party Bluetooth");
MODULE_LICENSE("GPL");
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