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7#include <common.h>
8#include <fdtdec.h>
9#include <errno.h>
10#include <dm.h>
11#include <i2c.h>
12#include <power/pmic.h>
13#include <power/regulator.h>
14#include <power/s5m8767.h>
15
16DECLARE_GLOBAL_DATA_PTR;
17
18static const struct sec_voltage_desc buck_v1 = {
19 .max = 2225000,
20 .min = 650000,
21 .step = 6250,
22};
23
24static const struct sec_voltage_desc buck_v2 = {
25 .max = 1600000,
26 .min = 600000,
27 .step = 6250,
28};
29
30static const struct sec_voltage_desc buck_v3 = {
31 .max = 3000000,
32 .min = 750000,
33 .step = 12500,
34};
35
36static const struct sec_voltage_desc ldo_v1 = {
37 .max = 3950000,
38 .min = 800000,
39 .step = 50000,
40};
41
42static const struct sec_voltage_desc ldo_v2 = {
43 .max = 2375000,
44 .min = 800000,
45 .step = 25000,
46};
47
48static const struct s5m8767_para buck_param[] = {
49
50
51
52
53 {S5M8767_BUCK1, 0x33, 0x0, 0xff, 0x32, 0x3, &buck_v1},
54 {S5M8767_BUCK2, 0x35, 0x0, 0xff, 0x34, 0x1, &buck_v2},
55 {S5M8767_BUCK3, 0x3e, 0x0, 0xff, 0x3d, 0x1, &buck_v2},
56 {S5M8767_BUCK4, 0x47, 0x0, 0xff, 0x46, 0x1, &buck_v2},
57 {S5M8767_BUCK5, 0x50, 0x0, 0xff, 0x4f, 0x3, &buck_v1},
58 {S5M8767_BUCK6, 0x55, 0x0, 0xff, 0x54, 0x3, &buck_v1},
59 {S5M8767_BUCK7, 0x57, 0x0, 0xff, 0x56, 0x3, &buck_v3},
60 {S5M8767_BUCK8, 0x59, 0x0, 0xff, 0x58, 0x3, &buck_v3},
61 {S5M8767_BUCK9, 0x5b, 0x0, 0xff, 0x5a, 0x3, &buck_v3},
62};
63
64static const struct s5m8767_para ldo_param[] = {
65 {S5M8767_LDO1, 0x5c, 0x0, 0x3f, 0x5c, 0x3, &ldo_v2},
66 {S5M8767_LDO2, 0x5d, 0x0, 0x3f, 0x5d, 0x1, &ldo_v2},
67 {S5M8767_LDO3, 0x61, 0x0, 0x3f, 0x61, 0x3, &ldo_v1},
68 {S5M8767_LDO4, 0x62, 0x0, 0x3f, 0x62, 0x3, &ldo_v1},
69 {S5M8767_LDO5, 0x63, 0x0, 0x3f, 0x63, 0x3, &ldo_v1},
70 {S5M8767_LDO6, 0x64, 0x0, 0x3f, 0x64, 0x1, &ldo_v2},
71 {S5M8767_LDO7, 0x65, 0x0, 0x3f, 0x65, 0x1, &ldo_v2},
72 {S5M8767_LDO8, 0x66, 0x0, 0x3f, 0x66, 0x1, &ldo_v2},
73 {S5M8767_LDO9, 0x67, 0x0, 0x3f, 0x67, 0x3, &ldo_v1},
74 {S5M8767_LDO10, 0x68, 0x0, 0x3f, 0x68, 0x1, &ldo_v1},
75 {S5M8767_LDO11, 0x69, 0x0, 0x3f, 0x69, 0x1, &ldo_v1},
76 {S5M8767_LDO12, 0x6a, 0x0, 0x3f, 0x6a, 0x1, &ldo_v1},
77 {S5M8767_LDO13, 0x6b, 0x0, 0x3f, 0x6b, 0x3, &ldo_v1},
78 {S5M8767_LDO14, 0x6c, 0x0, 0x3f, 0x6c, 0x1, &ldo_v1},
79 {S5M8767_LDO15, 0x6d, 0x0, 0x3f, 0x6d, 0x1, &ldo_v2},
80 {S5M8767_LDO16, 0x6e, 0x0, 0x3f, 0x6e, 0x1, &ldo_v1},
81 {S5M8767_LDO17, 0x6f, 0x0, 0x3f, 0x6f, 0x3, &ldo_v1},
82 {S5M8767_LDO18, 0x70, 0x0, 0x3f, 0x70, 0x3, &ldo_v1},
83 {S5M8767_LDO19, 0x71, 0x0, 0x3f, 0x71, 0x3, &ldo_v1},
84 {S5M8767_LDO20, 0x72, 0x0, 0x3f, 0x72, 0x3, &ldo_v1},
85 {S5M8767_LDO21, 0x73, 0x0, 0x3f, 0x73, 0x3, &ldo_v1},
86 {S5M8767_LDO22, 0x74, 0x0, 0x3f, 0x74, 0x3, &ldo_v1},
87 {S5M8767_LDO23, 0x75, 0x0, 0x3f, 0x75, 0x3, &ldo_v1},
88 {S5M8767_LDO24, 0x76, 0x0, 0x3f, 0x76, 0x3, &ldo_v1},
89 {S5M8767_LDO25, 0x77, 0x0, 0x3f, 0x77, 0x3, &ldo_v1},
90 {S5M8767_LDO26, 0x78, 0x0, 0x3f, 0x78, 0x3, &ldo_v1},
91 {S5M8767_LDO27, 0x79, 0x0, 0x3f, 0x79, 0x3, &ldo_v1},
92 {S5M8767_LDO28, 0x7a, 0x0, 0x3f, 0x7a, 0x3, &ldo_v1},
93};
94
95enum {
96 ENABLE_SHIFT = 6,
97 ENABLE_MASK = 3,
98};
99
100static int reg_get_value(struct udevice *dev, const struct s5m8767_para *param)
101{
102 const struct sec_voltage_desc *desc;
103 int ret, uv, val;
104
105 ret = pmic_reg_read(dev->parent, param->vol_addr);
106 if (ret < 0)
107 return ret;
108
109 desc = param->vol;
110 val = (ret >> param->vol_bitpos) & param->vol_bitmask;
111 uv = desc->min + val * desc->step;
112
113 return uv;
114}
115
116static int reg_set_value(struct udevice *dev, const struct s5m8767_para *param,
117 int uv)
118{
119 const struct sec_voltage_desc *desc;
120 int ret, val;
121
122 desc = param->vol;
123 if (uv < desc->min || uv > desc->max)
124 return -EINVAL;
125 val = (uv - desc->min) / desc->step;
126 val = (val & param->vol_bitmask) << param->vol_bitpos;
127 ret = pmic_clrsetbits(dev->parent, param->vol_addr,
128 param->vol_bitmask << param->vol_bitpos,
129 val);
130
131 return ret;
132}
133
134static int s5m8767_ldo_probe(struct udevice *dev)
135{
136 struct dm_regulator_uclass_platdata *uc_pdata;
137
138 uc_pdata = dev_get_uclass_platdata(dev);
139
140 uc_pdata->type = REGULATOR_TYPE_LDO;
141 uc_pdata->mode_count = 0;
142
143 return 0;
144}
145static int ldo_get_value(struct udevice *dev)
146{
147 int ldo = dev->driver_data;
148
149 return reg_get_value(dev, &ldo_param[ldo]);
150}
151
152static int ldo_set_value(struct udevice *dev, int uv)
153{
154 int ldo = dev->driver_data;
155
156 return reg_set_value(dev, &ldo_param[ldo], uv);
157}
158
159static int reg_get_enable(struct udevice *dev, const struct s5m8767_para *param)
160{
161 bool enable;
162 int ret;
163
164 ret = pmic_reg_read(dev->parent, param->reg_enaddr);
165 if (ret < 0)
166 return ret;
167
168 enable = (ret >> ENABLE_SHIFT) & ENABLE_MASK;
169
170 return enable;
171}
172
173static int reg_set_enable(struct udevice *dev, const struct s5m8767_para *param,
174 bool enable)
175{
176 int ret;
177
178 ret = pmic_reg_read(dev->parent, param->reg_enaddr);
179 if (ret < 0)
180 return ret;
181
182 ret = pmic_clrsetbits(dev->parent, param->reg_enaddr,
183 ENABLE_MASK << ENABLE_SHIFT,
184 enable ? param->reg_enbiton << ENABLE_SHIFT : 0);
185
186 return ret;
187}
188
189static bool ldo_get_enable(struct udevice *dev)
190{
191 int ldo = dev->driver_data;
192
193 return reg_get_enable(dev, &ldo_param[ldo]);
194}
195
196static int ldo_set_enable(struct udevice *dev, bool enable)
197{
198 int ldo = dev->driver_data;
199
200 return reg_set_enable(dev, &ldo_param[ldo], enable);
201}
202
203static int s5m8767_buck_probe(struct udevice *dev)
204{
205 struct dm_regulator_uclass_platdata *uc_pdata;
206
207 uc_pdata = dev_get_uclass_platdata(dev);
208
209 uc_pdata->type = REGULATOR_TYPE_BUCK;
210 uc_pdata->mode_count = 0;
211
212 return 0;
213}
214
215static int buck_get_value(struct udevice *dev)
216{
217 int buck = dev->driver_data;
218
219 return reg_get_value(dev, &buck_param[buck]);
220}
221
222static int buck_set_value(struct udevice *dev, int uv)
223{
224 int buck = dev->driver_data;
225
226 return reg_set_value(dev, &buck_param[buck], uv);
227}
228
229static bool buck_get_enable(struct udevice *dev)
230{
231 int buck = dev->driver_data;
232
233 return reg_get_enable(dev, &buck_param[buck]);
234}
235
236static int buck_set_enable(struct udevice *dev, bool enable)
237{
238 int buck = dev->driver_data;
239
240 return reg_set_enable(dev, &buck_param[buck], enable);
241}
242
243static const struct dm_regulator_ops s5m8767_ldo_ops = {
244 .get_value = ldo_get_value,
245 .set_value = ldo_set_value,
246 .get_enable = ldo_get_enable,
247 .set_enable = ldo_set_enable,
248};
249
250U_BOOT_DRIVER(s5m8767_ldo) = {
251 .name = S5M8767_LDO_DRIVER,
252 .id = UCLASS_REGULATOR,
253 .ops = &s5m8767_ldo_ops,
254 .probe = s5m8767_ldo_probe,
255};
256
257static const struct dm_regulator_ops s5m8767_buck_ops = {
258 .get_value = buck_get_value,
259 .set_value = buck_set_value,
260 .get_enable = buck_get_enable,
261 .set_enable = buck_set_enable,
262};
263
264U_BOOT_DRIVER(s5m8767_buck) = {
265 .name = S5M8767_BUCK_DRIVER,
266 .id = UCLASS_REGULATOR,
267 .ops = &s5m8767_buck_ops,
268 .probe = s5m8767_buck_probe,
269};
270
