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83d290c5 | 1 | // SPDX-License-Identifier: GPL-2.0+ |
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2 | /* |
3 | * AXP809 driver based on AXP221 driver | |
4 | * | |
5 | * | |
6 | * (C) Copyright 2016 Chen-Yu Tsai <wens@csie.org> | |
7 | * | |
8 | * Based on axp221.c | |
9 | * (C) Copyright 2014 Hans de Goede <hdegoede@redhat.com> | |
10 | * (C) Copyright 2013 Oliver Schinagl <oliver@schinagl.nl> | |
795857df CYT |
11 | */ |
12 | ||
13 | #include <common.h> | |
09140113 | 14 | #include <command.h> |
795857df | 15 | #include <errno.h> |
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16 | #include <asm/arch/pmic_bus.h> |
17 | #include <axp_pmic.h> | |
18 | ||
19 | static u8 axp809_mvolt_to_cfg(int mvolt, int min, int max, int div) | |
20 | { | |
21 | if (mvolt < min) | |
22 | mvolt = min; | |
23 | else if (mvolt > max) | |
24 | mvolt = max; | |
25 | ||
26 | return (mvolt - min) / div; | |
27 | } | |
28 | ||
29 | int axp_set_dcdc1(unsigned int mvolt) | |
30 | { | |
31 | int ret; | |
32 | u8 cfg = axp809_mvolt_to_cfg(mvolt, 1600, 3400, 100); | |
33 | ||
34 | if (mvolt == 0) | |
35 | return pmic_bus_clrbits(AXP809_OUTPUT_CTRL1, | |
36 | AXP809_OUTPUT_CTRL1_DCDC1_EN); | |
37 | ||
38 | ret = pmic_bus_write(AXP809_DCDC1_CTRL, cfg); | |
39 | if (ret) | |
40 | return ret; | |
41 | ||
42 | ret = pmic_bus_setbits(AXP809_OUTPUT_CTRL2, | |
43 | AXP809_OUTPUT_CTRL2_DC1SW_EN); | |
44 | if (ret) | |
45 | return ret; | |
46 | ||
47 | return pmic_bus_setbits(AXP809_OUTPUT_CTRL1, | |
48 | AXP809_OUTPUT_CTRL1_DCDC1_EN); | |
49 | } | |
50 | ||
51 | int axp_set_dcdc2(unsigned int mvolt) | |
52 | { | |
53 | int ret; | |
54 | u8 cfg = axp809_mvolt_to_cfg(mvolt, 600, 1540, 20); | |
55 | ||
56 | if (mvolt == 0) | |
57 | return pmic_bus_clrbits(AXP809_OUTPUT_CTRL1, | |
58 | AXP809_OUTPUT_CTRL1_DCDC2_EN); | |
59 | ||
60 | ret = pmic_bus_write(AXP809_DCDC2_CTRL, cfg); | |
61 | if (ret) | |
62 | return ret; | |
63 | ||
64 | return pmic_bus_setbits(AXP809_OUTPUT_CTRL1, | |
65 | AXP809_OUTPUT_CTRL1_DCDC2_EN); | |
66 | } | |
67 | ||
68 | int axp_set_dcdc3(unsigned int mvolt) | |
69 | { | |
70 | int ret; | |
71 | u8 cfg = axp809_mvolt_to_cfg(mvolt, 600, 1860, 20); | |
72 | ||
73 | if (mvolt == 0) | |
74 | return pmic_bus_clrbits(AXP809_OUTPUT_CTRL1, | |
75 | AXP809_OUTPUT_CTRL1_DCDC3_EN); | |
76 | ||
77 | ret = pmic_bus_write(AXP809_DCDC3_CTRL, cfg); | |
78 | if (ret) | |
79 | return ret; | |
80 | ||
81 | return pmic_bus_setbits(AXP809_OUTPUT_CTRL1, | |
82 | AXP809_OUTPUT_CTRL1_DCDC3_EN); | |
83 | } | |
84 | ||
85 | int axp_set_dcdc4(unsigned int mvolt) | |
86 | { | |
87 | int ret; | |
88 | u8 cfg = axp809_mvolt_to_cfg(mvolt, 600, 1540, 20); | |
89 | ||
90 | if (mvolt >= 1540) | |
91 | cfg = 0x30 + axp809_mvolt_to_cfg(mvolt, 1800, 2600, 100); | |
92 | ||
93 | if (mvolt == 0) | |
94 | return pmic_bus_clrbits(AXP809_OUTPUT_CTRL1, | |
95 | AXP809_OUTPUT_CTRL1_DCDC4_EN); | |
96 | ||
97 | ret = pmic_bus_write(AXP809_DCDC5_CTRL, cfg); | |
98 | if (ret) | |
99 | return ret; | |
100 | ||
101 | return pmic_bus_setbits(AXP809_OUTPUT_CTRL1, | |
102 | AXP809_OUTPUT_CTRL1_DCDC4_EN); | |
103 | } | |
104 | ||
105 | int axp_set_dcdc5(unsigned int mvolt) | |
106 | { | |
107 | int ret; | |
108 | u8 cfg = axp809_mvolt_to_cfg(mvolt, 1000, 2550, 50); | |
109 | ||
110 | if (mvolt == 0) | |
111 | return pmic_bus_clrbits(AXP809_OUTPUT_CTRL1, | |
112 | AXP809_OUTPUT_CTRL1_DCDC5_EN); | |
113 | ||
114 | ret = pmic_bus_write(AXP809_DCDC5_CTRL, cfg); | |
115 | if (ret) | |
116 | return ret; | |
117 | ||
118 | return pmic_bus_setbits(AXP809_OUTPUT_CTRL1, | |
119 | AXP809_OUTPUT_CTRL1_DCDC5_EN); | |
120 | } | |
121 | ||
122 | int axp_set_aldo(int aldo_num, unsigned int mvolt) | |
123 | { | |
124 | int ret; | |
125 | u8 cfg; | |
126 | ||
127 | if (aldo_num < 1 || aldo_num > 3) | |
128 | return -EINVAL; | |
129 | ||
130 | if (mvolt == 0 && aldo_num == 3) | |
131 | return pmic_bus_clrbits(AXP809_OUTPUT_CTRL2, | |
132 | AXP809_OUTPUT_CTRL2_ALDO3_EN); | |
133 | if (mvolt == 0) | |
134 | return pmic_bus_clrbits(AXP809_OUTPUT_CTRL1, | |
135 | AXP809_OUTPUT_CTRL1_ALDO1_EN << (aldo_num - 1)); | |
136 | ||
137 | cfg = axp809_mvolt_to_cfg(mvolt, 700, 3300, 100); | |
138 | ret = pmic_bus_write(AXP809_ALDO1_CTRL + (aldo_num - 1), cfg); | |
139 | if (ret) | |
140 | return ret; | |
141 | ||
142 | if (aldo_num == 3) | |
143 | return pmic_bus_setbits(AXP809_OUTPUT_CTRL2, | |
144 | AXP809_OUTPUT_CTRL2_ALDO3_EN); | |
3cc293e2 | 145 | return pmic_bus_setbits(AXP809_OUTPUT_CTRL1, |
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146 | AXP809_OUTPUT_CTRL1_ALDO1_EN << (aldo_num - 1)); |
147 | } | |
148 | ||
149 | /* TODO: re-work other AXP drivers to consolidate ALDO functions. */ | |
150 | int axp_set_aldo1(unsigned int mvolt) | |
151 | { | |
152 | return axp_set_aldo(1, mvolt); | |
153 | } | |
154 | ||
155 | int axp_set_aldo2(unsigned int mvolt) | |
156 | { | |
157 | return axp_set_aldo(2, mvolt); | |
158 | } | |
159 | ||
160 | int axp_set_aldo3(unsigned int mvolt) | |
161 | { | |
162 | return axp_set_aldo(3, mvolt); | |
163 | } | |
164 | ||
165 | int axp_set_dldo(int dldo_num, unsigned int mvolt) | |
166 | { | |
167 | u8 cfg = axp809_mvolt_to_cfg(mvolt, 700, 3300, 100); | |
168 | int ret; | |
169 | ||
170 | if (dldo_num < 1 || dldo_num > 2) | |
171 | return -EINVAL; | |
172 | ||
173 | if (mvolt == 0) | |
174 | return pmic_bus_clrbits(AXP809_OUTPUT_CTRL2, | |
175 | AXP809_OUTPUT_CTRL2_DLDO1_EN << (dldo_num - 1)); | |
176 | ||
177 | if (dldo_num == 1 && mvolt > 3300) | |
178 | cfg += 1 + axp809_mvolt_to_cfg(mvolt, 3400, 4200, 200); | |
179 | ret = pmic_bus_write(AXP809_DLDO1_CTRL + (dldo_num - 1), cfg); | |
180 | if (ret) | |
181 | return ret; | |
182 | ||
183 | return pmic_bus_setbits(AXP809_OUTPUT_CTRL2, | |
184 | AXP809_OUTPUT_CTRL2_DLDO1_EN << (dldo_num - 1)); | |
185 | } | |
186 | ||
187 | int axp_set_eldo(int eldo_num, unsigned int mvolt) | |
188 | { | |
189 | int ret; | |
190 | u8 cfg = axp809_mvolt_to_cfg(mvolt, 700, 3300, 100); | |
191 | ||
192 | if (eldo_num < 1 || eldo_num > 3) | |
193 | return -EINVAL; | |
194 | ||
195 | if (mvolt == 0) | |
196 | return pmic_bus_clrbits(AXP809_OUTPUT_CTRL2, | |
197 | AXP809_OUTPUT_CTRL2_ELDO1_EN << (eldo_num - 1)); | |
198 | ||
199 | ret = pmic_bus_write(AXP809_ELDO1_CTRL + (eldo_num - 1), cfg); | |
200 | if (ret) | |
201 | return ret; | |
202 | ||
203 | return pmic_bus_setbits(AXP809_OUTPUT_CTRL2, | |
204 | AXP809_OUTPUT_CTRL2_ELDO1_EN << (eldo_num - 1)); | |
205 | } | |
206 | ||
207 | int axp_set_sw(bool on) | |
208 | { | |
209 | if (on) | |
210 | return pmic_bus_setbits(AXP809_OUTPUT_CTRL2, | |
211 | AXP809_OUTPUT_CTRL2_SWOUT_EN); | |
212 | ||
213 | return pmic_bus_clrbits(AXP809_OUTPUT_CTRL2, | |
214 | AXP809_OUTPUT_CTRL2_SWOUT_EN); | |
215 | } | |
216 | ||
217 | int axp_init(void) | |
218 | { | |
a4ca3799 | 219 | return pmic_bus_init(); |
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220 | } |
221 | ||
830e161e | 222 | #if !IS_ENABLED(CONFIG_SYSRESET_CMD_POWEROFF) |
09140113 | 223 | int do_poweroff(struct cmd_tbl *cmdtp, int flag, int argc, char *const argv[]) |
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224 | { |
225 | pmic_bus_write(AXP809_SHUTDOWN, AXP809_SHUTDOWN_POWEROFF); | |
226 | ||
227 | /* infinite loop during shutdown */ | |
228 | while (1) {} | |
229 | ||
230 | /* not reached */ | |
231 | return 0; | |
232 | } | |
830e161e | 233 | #endif |