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path: root/drivers/regulator/as3711-regulator.c
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Diffstat (limited to 'drivers/regulator/as3711-regulator.c')
-rw-r--r--drivers/regulator/as3711-regulator.c163
1 files changed, 31 insertions, 132 deletions
diff --git a/drivers/regulator/as3711-regulator.c b/drivers/regulator/as3711-regulator.c
index 3da6bd6950cf..8406cd745da2 100644
--- a/drivers/regulator/as3711-regulator.c
+++ b/drivers/regulator/as3711-regulator.c
@@ -30,102 +30,6 @@ struct as3711_regulator {
30 struct regulator_dev *rdev; 30 struct regulator_dev *rdev;
31}; 31};
32 32
33static int as3711_list_voltage_sd(struct regulator_dev *rdev,
34 unsigned int selector)
35{
36 if (selector >= rdev->desc->n_voltages)
37 return -EINVAL;
38
39 if (!selector)
40 return 0;
41 if (selector < 0x41)
42 return 600000 + selector * 12500;
43 if (selector < 0x71)
44 return 1400000 + (selector - 0x40) * 25000;
45 return 2600000 + (selector - 0x70) * 50000;
46}
47
48static int as3711_list_voltage_aldo(struct regulator_dev *rdev,
49 unsigned int selector)
50{
51 if (selector >= rdev->desc->n_voltages)
52 return -EINVAL;
53
54 if (selector < 0x10)
55 return 1200000 + selector * 50000;
56 return 1800000 + (selector - 0x10) * 100000;
57}
58
59static int as3711_list_voltage_dldo(struct regulator_dev *rdev,
60 unsigned int selector)
61{
62 if (selector >= rdev->desc->n_voltages ||
63 (selector > 0x10 && selector < 0x20))
64 return -EINVAL;
65
66 if (selector < 0x11)
67 return 900000 + selector * 50000;
68 return 1750000 + (selector - 0x20) * 50000;
69}
70
71static int as3711_bound_check(struct regulator_dev *rdev,
72 int *min_uV, int *max_uV)
73{
74 struct as3711_regulator *reg = rdev_get_drvdata(rdev);
75 struct as3711_regulator_info *info = reg->reg_info;
76
77 dev_dbg(&rdev->dev, "%s(), %d, %d, %d\n", __func__,
78 *min_uV, rdev->desc->min_uV, info->max_uV);
79
80 if (*max_uV < *min_uV ||
81 *min_uV > info->max_uV || rdev->desc->min_uV > *max_uV)
82 return -EINVAL;
83
84 if (rdev->desc->n_voltages == 1)
85 return 0;
86
87 if (*max_uV > info->max_uV)
88 *max_uV = info->max_uV;
89
90 if (*min_uV < rdev->desc->min_uV)
91 *min_uV = rdev->desc->min_uV;
92
93 return *min_uV;
94}
95
96static int as3711_sel_check(int min, int max, int bottom, int step)
97{
98 int sel, voltage;
99
100 /* Round up min, when dividing: keeps us within the range */
101 sel = DIV_ROUND_UP(min - bottom, step);
102 voltage = sel * step + bottom;
103 pr_debug("%s(): select %d..%d in %d+N*%d: %d\n", __func__,
104 min, max, bottom, step, sel);
105 if (voltage > max)
106 return -EINVAL;
107
108 return sel;
109}
110
111static int as3711_map_voltage_sd(struct regulator_dev *rdev,
112 int min_uV, int max_uV)
113{
114 int ret;
115
116 ret = as3711_bound_check(rdev, &min_uV, &max_uV);
117 if (ret <= 0)
118 return ret;
119
120 if (min_uV <= 1400000)
121 return as3711_sel_check(min_uV, max_uV, 600000, 12500);
122
123 if (min_uV <= 2600000)
124 return as3711_sel_check(min_uV, max_uV, 1400000, 25000) + 0x40;
125
126 return as3711_sel_check(min_uV, max_uV, 2600000, 50000) + 0x70;
127}
128
129/* 33/*
130 * The regulator API supports 4 modes of operataion: FAST, NORMAL, IDLE and 34 * The regulator API supports 4 modes of operataion: FAST, NORMAL, IDLE and
131 * STANDBY. We map them in the following way to AS3711 SD1-4 DCDC modes: 35 * STANDBY. We map them in the following way to AS3711 SD1-4 DCDC modes:
@@ -180,44 +84,14 @@ static unsigned int as3711_get_mode_sd(struct regulator_dev *rdev)
180 return -EINVAL; 84 return -EINVAL;
181} 85}
182 86
183static int as3711_map_voltage_aldo(struct regulator_dev *rdev,
184 int min_uV, int max_uV)
185{
186 int ret;
187
188 ret = as3711_bound_check(rdev, &min_uV, &max_uV);
189 if (ret <= 0)
190 return ret;
191
192 if (min_uV <= 1800000)
193 return as3711_sel_check(min_uV, max_uV, 1200000, 50000);
194
195 return as3711_sel_check(min_uV, max_uV, 1800000, 100000) + 0x10;
196}
197
198static int as3711_map_voltage_dldo(struct regulator_dev *rdev,
199 int min_uV, int max_uV)
200{
201 int ret;
202
203 ret = as3711_bound_check(rdev, &min_uV, &max_uV);
204 if (ret <= 0)
205 return ret;
206
207 if (min_uV <= 1700000)
208 return as3711_sel_check(min_uV, max_uV, 900000, 50000);
209
210 return as3711_sel_check(min_uV, max_uV, 1750000, 50000) + 0x20;
211}
212
213static struct regulator_ops as3711_sd_ops = { 87static struct regulator_ops as3711_sd_ops = {
214 .is_enabled = regulator_is_enabled_regmap, 88 .is_enabled = regulator_is_enabled_regmap,
215 .enable = regulator_enable_regmap, 89 .enable = regulator_enable_regmap,
216 .disable = regulator_disable_regmap, 90 .disable = regulator_disable_regmap,
217 .get_voltage_sel = regulator_get_voltage_sel_regmap, 91 .get_voltage_sel = regulator_get_voltage_sel_regmap,
218 .set_voltage_sel = regulator_set_voltage_sel_regmap, 92 .set_voltage_sel = regulator_set_voltage_sel_regmap,
219 .list_voltage = as3711_list_voltage_sd, 93 .list_voltage = regulator_list_voltage_linear_range,
220 .map_voltage = as3711_map_voltage_sd, 94 .map_voltage = regulator_map_voltage_linear_range,
221 .get_mode = as3711_get_mode_sd, 95 .get_mode = as3711_get_mode_sd,
222 .set_mode = as3711_set_mode_sd, 96 .set_mode = as3711_set_mode_sd,
223}; 97};
@@ -228,8 +102,8 @@ static struct regulator_ops as3711_aldo_ops = {
228 .disable = regulator_disable_regmap, 102 .disable = regulator_disable_regmap,
229 .get_voltage_sel = regulator_get_voltage_sel_regmap, 103 .get_voltage_sel = regulator_get_voltage_sel_regmap,
230 .set_voltage_sel = regulator_set_voltage_sel_regmap, 104 .set_voltage_sel = regulator_set_voltage_sel_regmap,
231 .list_voltage = as3711_list_voltage_aldo, 105 .list_voltage = regulator_list_voltage_linear_range,
232 .map_voltage = as3711_map_voltage_aldo, 106 .map_voltage = regulator_map_voltage_linear_range,
233}; 107};
234 108
235static struct regulator_ops as3711_dldo_ops = { 109static struct regulator_ops as3711_dldo_ops = {
@@ -238,8 +112,31 @@ static struct regulator_ops as3711_dldo_ops = {
238 .disable = regulator_disable_regmap, 112 .disable = regulator_disable_regmap,
239 .get_voltage_sel = regulator_get_voltage_sel_regmap, 113 .get_voltage_sel = regulator_get_voltage_sel_regmap,
240 .set_voltage_sel = regulator_set_voltage_sel_regmap, 114 .set_voltage_sel = regulator_set_voltage_sel_regmap,
241 .list_voltage = as3711_list_voltage_dldo, 115 .list_voltage = regulator_list_voltage_linear_range,
242 .map_voltage = as3711_map_voltage_dldo, 116 .map_voltage = regulator_map_voltage_linear_range,
117};
118
119static const struct regulator_linear_range as3711_sd_ranges[] = {
120 { .min_uV = 612500, .max_uV = 1400000,
121 .min_sel = 0x1, .max_sel = 0x40, .uV_step = 12500 },
122 { .min_uV = 1425000, .max_uV = 2600000,
123 .min_sel = 0x41, .max_sel = 0x70, .uV_step = 25000 },
124 { .min_uV = 2650000, .max_uV = 3350000,
125 .min_sel = 0x71, .max_sel = 0x7f, .uV_step = 50000 },
126};
127
128static const struct regulator_linear_range as3711_aldo_ranges[] = {
129 { .min_uV = 1200000, .max_uV = 1950000,
130 .min_sel = 0, .max_sel = 0xf, .uV_step = 50000 },
131 { .min_uV = 1800000, .max_uV = 3300000,
132 .min_sel = 0x10, .max_sel = 0x1f, .uV_step = 100000 },
133};
134
135static const struct regulator_linear_range as3711_dldo_ranges[] = {
136 { .min_uV = 900000, .max_uV = 1700000,
137 .min_sel = 0, .max_sel = 0x10, .uV_step = 50000 },
138 { .min_uV = 1750000, .max_uV = 3300000,
139 .min_sel = 0x20, .max_sel = 0x3f, .uV_step = 50000 },
243}; 140};
244 141
245#define AS3711_REG(_id, _en_reg, _en_bit, _vmask, _vshift, _min_uV, _max_uV, _sfx) \ 142#define AS3711_REG(_id, _en_reg, _en_bit, _vmask, _vshift, _min_uV, _max_uV, _sfx) \
@@ -256,6 +153,8 @@ static struct regulator_ops as3711_dldo_ops = {
256 .enable_reg = AS3711_ ## _en_reg, \ 153 .enable_reg = AS3711_ ## _en_reg, \
257 .enable_mask = BIT(_en_bit), \ 154 .enable_mask = BIT(_en_bit), \
258 .min_uV = _min_uV, \ 155 .min_uV = _min_uV, \
156 .linear_ranges = as3711_ ## _sfx ## _ranges, \
157 .n_linear_ranges = ARRAY_SIZE(as3711_ ## _sfx ## _ranges), \
259 }, \ 158 }, \
260 .max_uV = _max_uV, \ 159 .max_uV = _max_uV, \
261} 160}
generated by cgit v1.2.2 (git 2.25.0) at 2025-02-25 14:43:34 -0500