power/pmic/pmic_tps65218.c

1 // SPDX-License-Identifier: GPL-2.0+
3  * (C) Copyright 2011-2013
10 #include <power/pmic.h>
29  *  tps65218_reg_write() - Generic function that can write a TPS65218 PMIC
97 		return -ENODEV;  in tps65218_reg_read()
116 		return -ENODEV;  in tps65218_reg_write()
160  * tps65218_voltage_update() - Function to change a voltage level, as this
161  *			       is a multi-step process.
187  * tps65218_toggle_fseal() - Perform the sequence that toggles the FSEAL bit.
189  * @return:		     0 on success, -EBADE if the sequence was broken
195 		return -EBADE;  in tps65218_toggle_fseal()
199 		return -EBADE;  in tps65218_toggle_fseal()
203 		return -EBADE;  in tps65218_toggle_fseal()
209  * tps65218_lock_fseal() - Perform the sequence that locks the FSEAL bit to 1.
211  * The FSEAL bit prevents the PMIC from turning off DCDC5 and DCDC6. It can be
212  * toggled at most 3 times: 0->1, 1->0, and finally 0->1. After the third switch
213  * its value is locked and can only be reset by powering off the PMIC entirely.
215  * @return:		   0 on success, -EBADE if the sequence was broken
223 			return -EBADE;  in tps65218_lock_fseal()
232 	struct pmic *p = pmic_alloc();  in power_tps65218_init()
236 		return -ENOMEM;  in power_tps65218_init()
239 	p->name = name;  in power_tps65218_init()
240 	p->interface = PMIC_I2C;  in power_tps65218_init()
241 	p->number_of_regs = TPS65218_PMIC_NUM_OF_REGS;  in power_tps65218_init()
242 	p->hw.i2c.addr = TPS65218_CHIP_PM;  in power_tps65218_init()
243 	p->hw.i2c.tx_num = 1;  in power_tps65218_init()
244 	p->bus = bus;  in power_tps65218_init()