043fdc251c
When bt-power driver is probed, it calls BT reset because of the value of reset-gpio is high. So it needs to check reset-gpio status before calling BT reset. CRs-Fixed: 2495853 Change-Id: I88569ba4375931f3062afccba5c6699fdda50d3d Signed-off-by: Junlin Zhang <junlzhan@codeaurora.org>
95 lines
2.7 KiB
C
95 lines
2.7 KiB
C
/*
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* Copyright (c) 2013-2019, 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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/* current level to be set */
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unsigned int load_uA;
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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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struct bt_power_clk_data {
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/* clock regulator handle */
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struct clk *clk;
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/* clock name */
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const char *name;
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/* is this clock 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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struct device *slim_dev;
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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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/* VDD_XTAL voltage regulator */
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struct bt_power_vreg_data *bt_vdd_xtal;
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/* VDD_CORE voltage regulator */
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struct bt_power_vreg_data *bt_vdd_core;
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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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/* bluetooth reference clock */
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struct bt_power_clk_data *bt_chip_clk;
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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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int bt_register_slimdev(struct device *dev);
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int get_chipset_version(void);
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#define BT_CMD_SLIM_TEST 0xbfac
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#define BT_CMD_PWR_CTRL 0xbfad
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#define BT_CMD_CHIPSET_VERS 0xbfae
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#define BT_RESET_GPIO_HIGH_VAL 0x1
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#endif /* __LINUX_BLUETOOTH_POWER_H */
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