2 * AXP221 and AXP223 driver
4 * IMPORTANT when making changes to this file check that the registers
5 * used are the same for the axp221 and axp223.
7 * (C) Copyright 2014 Hans de Goede <hdegoede@redhat.com>
8 * (C) Copyright 2013 Oliver Schinagl <oliver@schinagl.nl>
10 * SPDX-License-Identifier: GPL-2.0+
16 #include <asm/arch/pmic_bus.h>
19 static u8 axp221_mvolt_to_cfg(int mvolt, int min, int max, int div)
26 return (mvolt - min) / div;
29 int axp_set_dcdc1(unsigned int mvolt)
32 u8 cfg = axp221_mvolt_to_cfg(mvolt, 1600, 3400, 100);
35 return pmic_bus_clrbits(AXP221_OUTPUT_CTRL1,
36 AXP221_OUTPUT_CTRL1_DCDC1_EN);
38 ret = pmic_bus_write(AXP221_DCDC1_CTRL, cfg);
42 ret = pmic_bus_setbits(AXP221_OUTPUT_CTRL2,
43 AXP221_OUTPUT_CTRL2_DCDC1SW_EN);
47 return pmic_bus_setbits(AXP221_OUTPUT_CTRL1,
48 AXP221_OUTPUT_CTRL1_DCDC1_EN);
51 int axp_set_dcdc2(unsigned int mvolt)
54 u8 cfg = axp221_mvolt_to_cfg(mvolt, 600, 1540, 20);
57 return pmic_bus_clrbits(AXP221_OUTPUT_CTRL1,
58 AXP221_OUTPUT_CTRL1_DCDC2_EN);
60 ret = pmic_bus_write(AXP221_DCDC2_CTRL, cfg);
64 return pmic_bus_setbits(AXP221_OUTPUT_CTRL1,
65 AXP221_OUTPUT_CTRL1_DCDC2_EN);
68 int axp_set_dcdc3(unsigned int mvolt)
71 u8 cfg = axp221_mvolt_to_cfg(mvolt, 600, 1860, 20);
74 return pmic_bus_clrbits(AXP221_OUTPUT_CTRL1,
75 AXP221_OUTPUT_CTRL1_DCDC3_EN);
77 ret = pmic_bus_write(AXP221_DCDC3_CTRL, cfg);
81 return pmic_bus_setbits(AXP221_OUTPUT_CTRL1,
82 AXP221_OUTPUT_CTRL1_DCDC3_EN);
85 int axp_set_dcdc4(unsigned int mvolt)
88 u8 cfg = axp221_mvolt_to_cfg(mvolt, 600, 1540, 20);
91 return pmic_bus_clrbits(AXP221_OUTPUT_CTRL1,
92 AXP221_OUTPUT_CTRL1_DCDC4_EN);
94 ret = pmic_bus_write(AXP221_DCDC4_CTRL, cfg);
98 return pmic_bus_setbits(AXP221_OUTPUT_CTRL1,
99 AXP221_OUTPUT_CTRL1_DCDC4_EN);
102 int axp_set_dcdc5(unsigned int mvolt)
105 u8 cfg = axp221_mvolt_to_cfg(mvolt, 1000, 2550, 50);
108 return pmic_bus_clrbits(AXP221_OUTPUT_CTRL1,
109 AXP221_OUTPUT_CTRL1_DCDC5_EN);
111 ret = pmic_bus_write(AXP221_DCDC5_CTRL, cfg);
115 return pmic_bus_setbits(AXP221_OUTPUT_CTRL1,
116 AXP221_OUTPUT_CTRL1_DCDC5_EN);
119 int axp_set_aldo1(unsigned int mvolt)
122 u8 cfg = axp221_mvolt_to_cfg(mvolt, 700, 3300, 100);
125 return pmic_bus_clrbits(AXP221_OUTPUT_CTRL1,
126 AXP221_OUTPUT_CTRL1_ALDO1_EN);
128 ret = pmic_bus_write(AXP221_ALDO1_CTRL, cfg);
132 return pmic_bus_setbits(AXP221_OUTPUT_CTRL1,
133 AXP221_OUTPUT_CTRL1_ALDO1_EN);
136 int axp_set_aldo2(unsigned int mvolt)
139 u8 cfg = axp221_mvolt_to_cfg(mvolt, 700, 3300, 100);
142 return pmic_bus_clrbits(AXP221_OUTPUT_CTRL1,
143 AXP221_OUTPUT_CTRL1_ALDO2_EN);
145 ret = pmic_bus_write(AXP221_ALDO2_CTRL, cfg);
149 return pmic_bus_setbits(AXP221_OUTPUT_CTRL1,
150 AXP221_OUTPUT_CTRL1_ALDO2_EN);
153 int axp_set_aldo3(unsigned int mvolt)
156 u8 cfg = axp221_mvolt_to_cfg(mvolt, 700, 3300, 100);
159 return pmic_bus_clrbits(AXP221_OUTPUT_CTRL3,
160 AXP221_OUTPUT_CTRL3_ALDO3_EN);
162 ret = pmic_bus_write(AXP221_ALDO3_CTRL, cfg);
166 return pmic_bus_setbits(AXP221_OUTPUT_CTRL3,
167 AXP221_OUTPUT_CTRL3_ALDO3_EN);
170 int axp_set_dldo(int dldo_num, unsigned int mvolt)
172 u8 cfg = axp221_mvolt_to_cfg(mvolt, 700, 3300, 100);
175 if (dldo_num < 1 || dldo_num > 4)
179 return pmic_bus_clrbits(AXP221_OUTPUT_CTRL2,
180 AXP221_OUTPUT_CTRL2_DLDO1_EN << (dldo_num - 1));
182 ret = pmic_bus_write(AXP221_DLDO1_CTRL + (dldo_num - 1), cfg);
186 return pmic_bus_setbits(AXP221_OUTPUT_CTRL2,
187 AXP221_OUTPUT_CTRL2_DLDO1_EN << (dldo_num - 1));
190 int axp_set_eldo(int eldo_num, unsigned int mvolt)
193 u8 cfg = axp221_mvolt_to_cfg(mvolt, 700, 3300, 100);
195 if (eldo_num < 1 || eldo_num > 3)
199 return pmic_bus_clrbits(AXP221_OUTPUT_CTRL2,
200 AXP221_OUTPUT_CTRL2_ELDO1_EN << (eldo_num - 1));
202 ret = pmic_bus_write(AXP221_ELDO1_CTRL + (eldo_num - 1), cfg);
206 return pmic_bus_setbits(AXP221_OUTPUT_CTRL2,
207 AXP221_OUTPUT_CTRL2_ELDO1_EN << (eldo_num - 1));
215 ret = pmic_bus_init();
219 ret = pmic_bus_read(AXP221_CHIP_ID, &axp_chip_id);
223 if (!(axp_chip_id == 0x6 || axp_chip_id == 0x7 || axp_chip_id == 0x17))
227 * Turn off LDOIO regulators / tri-state GPIO pins, when rebooting
228 * from android these are sometimes on.
230 ret = pmic_bus_write(AXP_GPIO0_CTRL, AXP_GPIO_CTRL_INPUT);
234 ret = pmic_bus_write(AXP_GPIO1_CTRL, AXP_GPIO_CTRL_INPUT);
241 int axp_get_sid(unsigned int *sid)
243 u8 *dest = (u8 *)sid;
246 ret = pmic_bus_init();
250 ret = pmic_bus_write(AXP221_PAGE, 1);
254 for (i = 0; i < 16; i++) {
255 ret = pmic_bus_read(AXP221_SID + i, &dest[i]);
260 pmic_bus_write(AXP221_PAGE, 0);
262 for (i = 0; i < 4; i++)
263 sid[i] = be32_to_cpu(sid[i]);
268 int do_poweroff(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
270 pmic_bus_write(AXP221_SHUTDOWN, AXP221_SHUTDOWN_POWEROFF);
272 /* infinite loop during shutdown */