forked from rubenslte/android_kernel_samsung_msm8226
Ram Mohan Korukonda
964484edc3
Update bluetooth power driver to support both device tree and board specific platform data to power on bluetooth chipset. Current driver supports only gpio data from the device node. Now the driver first checks for device tree node and if it does not exist then checks for the platform data from the board file. Updated the platform data for the driver to provide all the required vregs and gpio data to power on the bluetooth chipset. Change-Id: Ie71115ad7173fc527e46b334a8b548762b40aa46 Signed-off-by: Ram Mohan Korukonda <rkorukon@codeaurora.org>
68 lines
2.1 KiB
C
68 lines
2.1 KiB
C
/*
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* Copyright (c) 2013, The Linux Foundation. All rights reserved.
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2 and
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* only version 2 as published by the Free Software Foundation.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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*/
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#ifndef __LINUX_BLUETOOTH_POWER_H
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#define __LINUX_BLUETOOTH_POWER_H
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/*
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* voltage regulator information required for configuring the
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* bluetooth chipset
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*/
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struct bt_power_vreg_data {
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/* voltage regulator handle */
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struct regulator *reg;
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/* regulator name */
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const char *name;
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/* voltage levels to be set */
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unsigned int low_vol_level;
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unsigned int high_vol_level;
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/*
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* is set voltage supported for this regulator?
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* false => set voltage is not supported
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* true => set voltage is supported
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*
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* Some regulators (like gpio-regulators, LVS (low voltage swtiches)
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* PMIC regulators) dont have the capability to call
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* regulator_set_voltage or regulator_set_optimum_mode
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* Use this variable to indicate if its a such regulator or not
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*/
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bool set_voltage_sup;
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/* is this regulator enabled? */
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bool is_enabled;
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};
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/*
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* Platform data for the bluetooth power driver.
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*/
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struct bluetooth_power_platform_data {
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/* Bluetooth reset gpio */
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int bt_gpio_sys_rst;
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/* VDDIO voltage regulator */
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struct bt_power_vreg_data *bt_vdd_io;
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/* VDD_PA voltage regulator */
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struct bt_power_vreg_data *bt_vdd_pa;
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/* VDD_LDOIN voltage regulator */
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struct bt_power_vreg_data *bt_vdd_ldo;
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/* Optional: chip power down gpio-regulator
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* chip power down data is required when bluetooth module
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* and other modules like wifi co-exist in a single chip and
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* shares a common gpio to bring chip out of reset.
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*/
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struct bt_power_vreg_data *bt_chip_pwd;
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/* Optional: Bluetooth power setup function */
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int (*bt_power_setup) (int);
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};
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#endif /* __LINUX_BLUETOOTH_POWER_H */
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