diff options
author | Mark Brown <broonie@linaro.org> | 2013-09-01 08:50:18 -0400 |
---|---|---|
committer | Mark Brown <broonie@linaro.org> | 2013-09-01 08:50:18 -0400 |
commit | 09f2dd88ff93a6d31e10dd5c25e2aa2a8b7b12ee (patch) | |
tree | 65c4be47e2411c67e3071e08d67cad3b834ee88c | |
parent | 39fe3b45d3951c3633ddb7aafb29ceef3f012761 (diff) | |
parent | 6b8430c3f3090b8b805eb1fbe58390229d2dd067 (diff) |
Merge remote-tracking branch 'regulator/topic/pfuze100' into regulator-next
-rw-r--r-- | Documentation/devicetree/bindings/regulator/pfuze100.txt | 115 | ||||
-rw-r--r-- | drivers/regulator/Kconfig | 8 | ||||
-rw-r--r-- | drivers/regulator/Makefile | 1 | ||||
-rw-r--r-- | drivers/regulator/pfuze100-regulator.c | 445 | ||||
-rw-r--r-- | include/linux/regulator/pfuze100.h | 44 |
5 files changed, 613 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/regulator/pfuze100.txt b/Documentation/devicetree/bindings/regulator/pfuze100.txt new file mode 100644 index 000000000000..fc989b2e8057 --- /dev/null +++ b/Documentation/devicetree/bindings/regulator/pfuze100.txt | |||
@@ -0,0 +1,115 @@ | |||
1 | PFUZE100 family of regulators | ||
2 | |||
3 | Required properties: | ||
4 | - compatible: "fsl,pfuze100" | ||
5 | - reg: I2C slave address | ||
6 | |||
7 | Required child node: | ||
8 | - regulators: This is the list of child nodes that specify the regulator | ||
9 | initialization data for defined regulators. Please refer to below doc | ||
10 | Documentation/devicetree/bindings/regulator/regulator.txt. | ||
11 | |||
12 | The valid names for regulators are: | ||
13 | sw1ab,sw1c,sw2,sw3a,sw3b,sw4,swbst,vsnvs,vrefddr,vgen1~vgen6 | ||
14 | |||
15 | Each regulator is defined using the standard binding for regulators. | ||
16 | |||
17 | Example: | ||
18 | |||
19 | pmic: pfuze100@08 { | ||
20 | compatible = "fsl,pfuze100"; | ||
21 | reg = <0x08>; | ||
22 | |||
23 | regulators { | ||
24 | sw1a_reg: sw1ab { | ||
25 | regulator-min-microvolt = <300000>; | ||
26 | regulator-max-microvolt = <1875000>; | ||
27 | regulator-boot-on; | ||
28 | regulator-always-on; | ||
29 | regulator-ramp-delay = <6250>; | ||
30 | }; | ||
31 | |||
32 | sw1c_reg: sw1c { | ||
33 | regulator-min-microvolt = <300000>; | ||
34 | regulator-max-microvolt = <1875000>; | ||
35 | regulator-boot-on; | ||
36 | regulator-always-on; | ||
37 | }; | ||
38 | |||
39 | sw2_reg: sw2 { | ||
40 | regulator-min-microvolt = <800000>; | ||
41 | regulator-max-microvolt = <3300000>; | ||
42 | regulator-boot-on; | ||
43 | regulator-always-on; | ||
44 | }; | ||
45 | |||
46 | sw3a_reg: sw3a { | ||
47 | regulator-min-microvolt = <400000>; | ||
48 | regulator-max-microvolt = <1975000>; | ||
49 | regulator-boot-on; | ||
50 | regulator-always-on; | ||
51 | }; | ||
52 | |||
53 | sw3b_reg: sw3b { | ||
54 | regulator-min-microvolt = <400000>; | ||
55 | regulator-max-microvolt = <1975000>; | ||
56 | regulator-boot-on; | ||
57 | regulator-always-on; | ||
58 | }; | ||
59 | |||
60 | sw4_reg: sw4 { | ||
61 | regulator-min-microvolt = <800000>; | ||
62 | regulator-max-microvolt = <3300000>; | ||
63 | }; | ||
64 | |||
65 | swbst_reg: swbst { | ||
66 | regulator-min-microvolt = <5000000>; | ||
67 | regulator-max-microvolt = <5150000>; | ||
68 | }; | ||
69 | |||
70 | snvs_reg: vsnvs { | ||
71 | regulator-min-microvolt = <1000000>; | ||
72 | regulator-max-microvolt = <3000000>; | ||
73 | regulator-boot-on; | ||
74 | regulator-always-on; | ||
75 | }; | ||
76 | |||
77 | vref_reg: vrefddr { | ||
78 | regulator-boot-on; | ||
79 | regulator-always-on; | ||
80 | }; | ||
81 | |||
82 | vgen1_reg: vgen1 { | ||
83 | regulator-min-microvolt = <800000>; | ||
84 | regulator-max-microvolt = <1550000>; | ||
85 | }; | ||
86 | |||
87 | vgen2_reg: vgen2 { | ||
88 | regulator-min-microvolt = <800000>; | ||
89 | regulator-max-microvolt = <1550000>; | ||
90 | }; | ||
91 | |||
92 | vgen3_reg: vgen3 { | ||
93 | regulator-min-microvolt = <1800000>; | ||
94 | regulator-max-microvolt = <3300000>; | ||
95 | }; | ||
96 | |||
97 | vgen4_reg: vgen4 { | ||
98 | regulator-min-microvolt = <1800000>; | ||
99 | regulator-max-microvolt = <3300000>; | ||
100 | regulator-always-on; | ||
101 | }; | ||
102 | |||
103 | vgen5_reg: vgen5 { | ||
104 | regulator-min-microvolt = <1800000>; | ||
105 | regulator-max-microvolt = <3300000>; | ||
106 | regulator-always-on; | ||
107 | }; | ||
108 | |||
109 | vgen6_reg: vgen6 { | ||
110 | regulator-min-microvolt = <1800000>; | ||
111 | regulator-max-microvolt = <3300000>; | ||
112 | regulator-always-on; | ||
113 | }; | ||
114 | }; | ||
115 | }; | ||
diff --git a/drivers/regulator/Kconfig b/drivers/regulator/Kconfig index 6845d7439c23..dfe58096b374 100644 --- a/drivers/regulator/Kconfig +++ b/drivers/regulator/Kconfig | |||
@@ -385,6 +385,14 @@ config REGULATOR_PCF50633 | |||
385 | Say Y here to support the voltage regulators and convertors | 385 | Say Y here to support the voltage regulators and convertors |
386 | on PCF50633 | 386 | on PCF50633 |
387 | 387 | ||
388 | config REGULATOR_PFUZE100 | ||
389 | tristate "Support regulators on Freescale PFUZE100 PMIC" | ||
390 | depends on I2C | ||
391 | select REGMAP_I2C | ||
392 | help | ||
393 | Say y here to support the regulators found on the Freescale PFUZE100 | ||
394 | PMIC. | ||
395 | |||
388 | config REGULATOR_RC5T583 | 396 | config REGULATOR_RC5T583 |
389 | tristate "RICOH RC5T583 Power regulators" | 397 | tristate "RICOH RC5T583 Power regulators" |
390 | depends on MFD_RC5T583 | 398 | depends on MFD_RC5T583 |
diff --git a/drivers/regulator/Makefile b/drivers/regulator/Makefile index 90c31e74ca28..185cce246022 100644 --- a/drivers/regulator/Makefile +++ b/drivers/regulator/Makefile | |||
@@ -49,6 +49,7 @@ obj-$(CONFIG_REGULATOR_MC13783) += mc13783-regulator.o | |||
49 | obj-$(CONFIG_REGULATOR_MC13892) += mc13892-regulator.o | 49 | obj-$(CONFIG_REGULATOR_MC13892) += mc13892-regulator.o |
50 | obj-$(CONFIG_REGULATOR_MC13XXX_CORE) += mc13xxx-regulator-core.o | 50 | obj-$(CONFIG_REGULATOR_MC13XXX_CORE) += mc13xxx-regulator-core.o |
51 | obj-$(CONFIG_REGULATOR_PALMAS) += palmas-regulator.o | 51 | obj-$(CONFIG_REGULATOR_PALMAS) += palmas-regulator.o |
52 | obj-$(CONFIG_REGULATOR_PFUZE100) += pfuze100-regulator.o | ||
52 | obj-$(CONFIG_REGULATOR_TPS51632) += tps51632-regulator.o | 53 | obj-$(CONFIG_REGULATOR_TPS51632) += tps51632-regulator.o |
53 | obj-$(CONFIG_REGULATOR_PCAP) += pcap-regulator.o | 54 | obj-$(CONFIG_REGULATOR_PCAP) += pcap-regulator.o |
54 | obj-$(CONFIG_REGULATOR_PCF50633) += pcf50633-regulator.o | 55 | obj-$(CONFIG_REGULATOR_PCF50633) += pcf50633-regulator.o |
diff --git a/drivers/regulator/pfuze100-regulator.c b/drivers/regulator/pfuze100-regulator.c new file mode 100644 index 000000000000..ba67b2c4e2e7 --- /dev/null +++ b/drivers/regulator/pfuze100-regulator.c | |||
@@ -0,0 +1,445 @@ | |||
1 | /* | ||
2 | * Copyright (C) 2011-2013 Freescale Semiconductor, Inc. All Rights Reserved. | ||
3 | * | ||
4 | * This program is free software; you can redistribute it and/or modify | ||
5 | * it under the terms of the GNU General Public License as published by | ||
6 | * the Free Software Foundation; either version 2 of the License, or | ||
7 | * (at your option) any later version. | ||
8 | * | ||
9 | * This program is distributed in the hope that it will be useful, | ||
10 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | ||
11 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | ||
12 | * GNU General Public License for more details. | ||
13 | * | ||
14 | * You should have received a copy of the GNU General Public License | ||
15 | * along with this program; if not, write to the Free Software | ||
16 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA | ||
17 | */ | ||
18 | #include <linux/kernel.h> | ||
19 | #include <linux/module.h> | ||
20 | #include <linux/init.h> | ||
21 | #include <linux/err.h> | ||
22 | #include <linux/of.h> | ||
23 | #include <linux/of_device.h> | ||
24 | #include <linux/regulator/of_regulator.h> | ||
25 | #include <linux/platform_device.h> | ||
26 | #include <linux/regulator/driver.h> | ||
27 | #include <linux/regulator/machine.h> | ||
28 | #include <linux/regulator/pfuze100.h> | ||
29 | #include <linux/i2c.h> | ||
30 | #include <linux/slab.h> | ||
31 | #include <linux/regmap.h> | ||
32 | |||
33 | #define PFUZE_NUMREGS 128 | ||
34 | #define PFUZE100_VOL_OFFSET 0 | ||
35 | #define PFUZE100_STANDBY_OFFSET 1 | ||
36 | #define PFUZE100_MODE_OFFSET 3 | ||
37 | #define PFUZE100_CONF_OFFSET 4 | ||
38 | |||
39 | #define PFUZE100_DEVICEID 0x0 | ||
40 | #define PFUZE100_REVID 0x3 | ||
41 | #define PFUZE100_FABID 0x3 | ||
42 | |||
43 | #define PFUZE100_SW1ABVOL 0x20 | ||
44 | #define PFUZE100_SW1CVOL 0x2e | ||
45 | #define PFUZE100_SW2VOL 0x35 | ||
46 | #define PFUZE100_SW3AVOL 0x3c | ||
47 | #define PFUZE100_SW3BVOL 0x43 | ||
48 | #define PFUZE100_SW4VOL 0x4a | ||
49 | #define PFUZE100_SWBSTCON1 0x66 | ||
50 | #define PFUZE100_VREFDDRCON 0x6a | ||
51 | #define PFUZE100_VSNVSVOL 0x6b | ||
52 | #define PFUZE100_VGEN1VOL 0x6c | ||
53 | #define PFUZE100_VGEN2VOL 0x6d | ||
54 | #define PFUZE100_VGEN3VOL 0x6e | ||
55 | #define PFUZE100_VGEN4VOL 0x6f | ||
56 | #define PFUZE100_VGEN5VOL 0x70 | ||
57 | #define PFUZE100_VGEN6VOL 0x71 | ||
58 | |||
59 | struct pfuze_regulator { | ||
60 | struct regulator_desc desc; | ||
61 | unsigned char stby_reg; | ||
62 | unsigned char stby_mask; | ||
63 | }; | ||
64 | |||
65 | struct pfuze_chip { | ||
66 | struct regmap *regmap; | ||
67 | struct device *dev; | ||
68 | struct pfuze_regulator regulator_descs[PFUZE100_MAX_REGULATOR]; | ||
69 | struct regulator_dev *regulators[PFUZE100_MAX_REGULATOR]; | ||
70 | }; | ||
71 | |||
72 | static const int pfuze100_swbst[] = { | ||
73 | 5000000, 5050000, 5100000, 5150000, | ||
74 | }; | ||
75 | |||
76 | static const int pfuze100_vsnvs[] = { | ||
77 | 1000000, 1100000, 1200000, 1300000, 1500000, 1800000, 3000000, | ||
78 | }; | ||
79 | |||
80 | static const struct i2c_device_id pfuze_device_id[] = { | ||
81 | {.name = "pfuze100"}, | ||
82 | {}, | ||
83 | }; | ||
84 | MODULE_DEVICE_TABLE(i2c, pfuze_device_id); | ||
85 | |||
86 | static const struct of_device_id pfuze_dt_ids[] = { | ||
87 | { .compatible = "fsl,pfuze100" }, | ||
88 | {}, | ||
89 | }; | ||
90 | MODULE_DEVICE_TABLE(of, pfuze_dt_ids); | ||
91 | |||
92 | static int pfuze100_set_ramp_delay(struct regulator_dev *rdev, int ramp_delay) | ||
93 | { | ||
94 | struct pfuze_chip *pfuze100 = rdev_get_drvdata(rdev); | ||
95 | int id = rdev->desc->id; | ||
96 | unsigned int ramp_bits; | ||
97 | int ret; | ||
98 | |||
99 | if (id < PFUZE100_SWBST) { | ||
100 | ramp_delay = 12500 / ramp_delay; | ||
101 | ramp_bits = (ramp_delay >> 1) - (ramp_delay >> 3); | ||
102 | ret = regmap_update_bits(pfuze100->regmap, | ||
103 | rdev->desc->vsel_reg + 4, | ||
104 | 0xc0, ramp_bits << 6); | ||
105 | if (ret < 0) | ||
106 | dev_err(pfuze100->dev, "ramp failed, err %d\n", ret); | ||
107 | } else | ||
108 | ret = -EACCES; | ||
109 | |||
110 | return ret; | ||
111 | } | ||
112 | |||
113 | static struct regulator_ops pfuze100_ldo_regulator_ops = { | ||
114 | .enable = regulator_enable_regmap, | ||
115 | .disable = regulator_disable_regmap, | ||
116 | .is_enabled = regulator_is_enabled_regmap, | ||
117 | .list_voltage = regulator_list_voltage_linear, | ||
118 | .set_voltage_sel = regulator_set_voltage_sel_regmap, | ||
119 | .get_voltage_sel = regulator_get_voltage_sel_regmap, | ||
120 | }; | ||
121 | |||
122 | static struct regulator_ops pfuze100_fixed_regulator_ops = { | ||
123 | .list_voltage = regulator_list_voltage_linear, | ||
124 | }; | ||
125 | |||
126 | static struct regulator_ops pfuze100_sw_regulator_ops = { | ||
127 | .list_voltage = regulator_list_voltage_linear, | ||
128 | .set_voltage_sel = regulator_set_voltage_sel_regmap, | ||
129 | .get_voltage_sel = regulator_get_voltage_sel_regmap, | ||
130 | .set_voltage_time_sel = regulator_set_voltage_time_sel, | ||
131 | .set_ramp_delay = pfuze100_set_ramp_delay, | ||
132 | }; | ||
133 | |||
134 | static struct regulator_ops pfuze100_swb_regulator_ops = { | ||
135 | .list_voltage = regulator_list_voltage_table, | ||
136 | .map_voltage = regulator_map_voltage_ascend, | ||
137 | .set_voltage_sel = regulator_set_voltage_sel_regmap, | ||
138 | .get_voltage_sel = regulator_get_voltage_sel_regmap, | ||
139 | |||
140 | }; | ||
141 | |||
142 | #define PFUZE100_FIXED_REG(_name, base, voltage) \ | ||
143 | [PFUZE100_ ## _name] = { \ | ||
144 | .desc = { \ | ||
145 | .name = #_name, \ | ||
146 | .n_voltages = 1, \ | ||
147 | .ops = &pfuze100_fixed_regulator_ops, \ | ||
148 | .type = REGULATOR_VOLTAGE, \ | ||
149 | .id = PFUZE100_ ## _name, \ | ||
150 | .owner = THIS_MODULE, \ | ||
151 | .min_uV = (voltage), \ | ||
152 | .enable_reg = (base), \ | ||
153 | .enable_mask = 0x10, \ | ||
154 | }, \ | ||
155 | } | ||
156 | |||
157 | #define PFUZE100_SW_REG(_name, base, min, max, step) \ | ||
158 | [PFUZE100_ ## _name] = { \ | ||
159 | .desc = { \ | ||
160 | .name = #_name,\ | ||
161 | .n_voltages = ((max) - (min)) / (step) + 1, \ | ||
162 | .ops = &pfuze100_sw_regulator_ops, \ | ||
163 | .type = REGULATOR_VOLTAGE, \ | ||
164 | .id = PFUZE100_ ## _name, \ | ||
165 | .owner = THIS_MODULE, \ | ||
166 | .min_uV = (min), \ | ||
167 | .uV_step = (step), \ | ||
168 | .vsel_reg = (base) + PFUZE100_VOL_OFFSET, \ | ||
169 | .vsel_mask = 0x3f, \ | ||
170 | }, \ | ||
171 | .stby_reg = (base) + PFUZE100_STANDBY_OFFSET, \ | ||
172 | .stby_mask = 0x3f, \ | ||
173 | } | ||
174 | |||
175 | #define PFUZE100_SWB_REG(_name, base, mask, voltages) \ | ||
176 | [PFUZE100_ ## _name] = { \ | ||
177 | .desc = { \ | ||
178 | .name = #_name, \ | ||
179 | .n_voltages = ARRAY_SIZE(voltages), \ | ||
180 | .ops = &pfuze100_swb_regulator_ops, \ | ||
181 | .type = REGULATOR_VOLTAGE, \ | ||
182 | .id = PFUZE100_ ## _name, \ | ||
183 | .owner = THIS_MODULE, \ | ||
184 | .volt_table = voltages, \ | ||
185 | .vsel_reg = (base), \ | ||
186 | .vsel_mask = (mask), \ | ||
187 | }, \ | ||
188 | } | ||
189 | |||
190 | #define PFUZE100_VGEN_REG(_name, base, min, max, step) \ | ||
191 | [PFUZE100_ ## _name] = { \ | ||
192 | .desc = { \ | ||
193 | .name = #_name, \ | ||
194 | .n_voltages = ((max) - (min)) / (step) + 1, \ | ||
195 | .ops = &pfuze100_ldo_regulator_ops, \ | ||
196 | .type = REGULATOR_VOLTAGE, \ | ||
197 | .id = PFUZE100_ ## _name, \ | ||
198 | .owner = THIS_MODULE, \ | ||
199 | .min_uV = (min), \ | ||
200 | .uV_step = (step), \ | ||
201 | .vsel_reg = (base), \ | ||
202 | .vsel_mask = 0xf, \ | ||
203 | .enable_reg = (base), \ | ||
204 | .enable_mask = 0x10, \ | ||
205 | }, \ | ||
206 | .stby_reg = (base), \ | ||
207 | .stby_mask = 0x20, \ | ||
208 | } | ||
209 | |||
210 | static struct pfuze_regulator pfuze100_regulators[] = { | ||
211 | PFUZE100_SW_REG(SW1AB, PFUZE100_SW1ABVOL, 300000, 1875000, 25000), | ||
212 | PFUZE100_SW_REG(SW1C, PFUZE100_SW1CVOL, 300000, 1875000, 25000), | ||
213 | PFUZE100_SW_REG(SW2, PFUZE100_SW2VOL, 400000, 1975000, 25000), | ||
214 | PFUZE100_SW_REG(SW3A, PFUZE100_SW3AVOL, 400000, 1975000, 25000), | ||
215 | PFUZE100_SW_REG(SW3B, PFUZE100_SW3BVOL, 400000, 1975000, 25000), | ||
216 | PFUZE100_SW_REG(SW4, PFUZE100_SW4VOL, 400000, 1975000, 25000), | ||
217 | PFUZE100_SWB_REG(SWBST, PFUZE100_SWBSTCON1, 0x3 , pfuze100_swbst), | ||
218 | PFUZE100_SWB_REG(VSNVS, PFUZE100_VSNVSVOL, 0x7, pfuze100_vsnvs), | ||
219 | PFUZE100_FIXED_REG(VREFDDR, PFUZE100_VREFDDRCON, 750000), | ||
220 | PFUZE100_VGEN_REG(VGEN1, PFUZE100_VGEN1VOL, 800000, 1550000, 50000), | ||
221 | PFUZE100_VGEN_REG(VGEN2, PFUZE100_VGEN2VOL, 800000, 1550000, 50000), | ||
222 | PFUZE100_VGEN_REG(VGEN3, PFUZE100_VGEN3VOL, 1800000, 3300000, 100000), | ||
223 | PFUZE100_VGEN_REG(VGEN4, PFUZE100_VGEN4VOL, 1800000, 3300000, 100000), | ||
224 | PFUZE100_VGEN_REG(VGEN5, PFUZE100_VGEN5VOL, 1800000, 3300000, 100000), | ||
225 | PFUZE100_VGEN_REG(VGEN6, PFUZE100_VGEN6VOL, 1800000, 3300000, 100000), | ||
226 | }; | ||
227 | |||
228 | #ifdef CONFIG_OF | ||
229 | static struct of_regulator_match pfuze100_matches[] = { | ||
230 | { .name = "sw1ab", }, | ||
231 | { .name = "sw1c", }, | ||
232 | { .name = "sw2", }, | ||
233 | { .name = "sw3a", }, | ||
234 | { .name = "sw3b", }, | ||
235 | { .name = "sw4", }, | ||
236 | { .name = "swbst", }, | ||
237 | { .name = "vsnvs", }, | ||
238 | { .name = "vrefddr", }, | ||
239 | { .name = "vgen1", }, | ||
240 | { .name = "vgen2", }, | ||
241 | { .name = "vgen3", }, | ||
242 | { .name = "vgen4", }, | ||
243 | { .name = "vgen5", }, | ||
244 | { .name = "vgen6", }, | ||
245 | }; | ||
246 | |||
247 | static int pfuze_parse_regulators_dt(struct pfuze_chip *chip) | ||
248 | { | ||
249 | struct device *dev = chip->dev; | ||
250 | struct device_node *np, *parent; | ||
251 | int ret; | ||
252 | |||
253 | np = of_node_get(dev->parent->of_node); | ||
254 | if (!np) | ||
255 | return 0; | ||
256 | |||
257 | parent = of_find_node_by_name(np, "regulators"); | ||
258 | if (!parent) { | ||
259 | dev_err(dev, "regulators node not found\n"); | ||
260 | return -EINVAL; | ||
261 | } | ||
262 | |||
263 | ret = of_regulator_match(dev, parent, pfuze100_matches, | ||
264 | ARRAY_SIZE(pfuze100_matches)); | ||
265 | |||
266 | of_node_put(parent); | ||
267 | if (ret < 0) { | ||
268 | dev_err(dev, "Error parsing regulator init data: %d\n", | ||
269 | ret); | ||
270 | return ret; | ||
271 | } | ||
272 | |||
273 | return 0; | ||
274 | } | ||
275 | |||
276 | static inline struct regulator_init_data *match_init_data(int index) | ||
277 | { | ||
278 | return pfuze100_matches[index].init_data; | ||
279 | } | ||
280 | |||
281 | static inline struct device_node *match_of_node(int index) | ||
282 | { | ||
283 | return pfuze100_matches[index].of_node; | ||
284 | } | ||
285 | #else | ||
286 | static int pfuze_parse_regulators_dt(struct pfuze_chip *chip) | ||
287 | { | ||
288 | return 0; | ||
289 | } | ||
290 | |||
291 | static inline struct regulator_init_data *match_init_data(int index) | ||
292 | { | ||
293 | return NULL; | ||
294 | } | ||
295 | |||
296 | static inline struct device_node *match_of_node(int index) | ||
297 | { | ||
298 | return NULL; | ||
299 | } | ||
300 | #endif | ||
301 | |||
302 | static int pfuze_identify(struct pfuze_chip *pfuze_chip) | ||
303 | { | ||
304 | unsigned int value; | ||
305 | int ret; | ||
306 | |||
307 | ret = regmap_read(pfuze_chip->regmap, PFUZE100_DEVICEID, &value); | ||
308 | if (ret) | ||
309 | return ret; | ||
310 | |||
311 | if (value & 0x0f) { | ||
312 | dev_warn(pfuze_chip->dev, "Illegal ID: %x\n", value); | ||
313 | return -ENODEV; | ||
314 | } | ||
315 | |||
316 | ret = regmap_read(pfuze_chip->regmap, PFUZE100_REVID, &value); | ||
317 | if (ret) | ||
318 | return ret; | ||
319 | dev_info(pfuze_chip->dev, | ||
320 | "Full lay: %x, Metal lay: %x\n", | ||
321 | (value & 0xf0) >> 4, value & 0x0f); | ||
322 | |||
323 | ret = regmap_read(pfuze_chip->regmap, PFUZE100_FABID, &value); | ||
324 | if (ret) | ||
325 | return ret; | ||
326 | dev_info(pfuze_chip->dev, "FAB: %x, FIN: %x\n", | ||
327 | (value & 0xc) >> 2, value & 0x3); | ||
328 | |||
329 | return 0; | ||
330 | } | ||
331 | |||
332 | static const struct regmap_config pfuze_regmap_config = { | ||
333 | .reg_bits = 8, | ||
334 | .val_bits = 8, | ||
335 | .max_register = PFUZE_NUMREGS - 1, | ||
336 | .cache_type = REGCACHE_RBTREE, | ||
337 | }; | ||
338 | |||
339 | static int pfuze100_regulator_probe(struct i2c_client *client, | ||
340 | const struct i2c_device_id *id) | ||
341 | { | ||
342 | struct pfuze_chip *pfuze_chip; | ||
343 | struct pfuze_regulator_platform_data *pdata = | ||
344 | dev_get_platdata(&client->dev); | ||
345 | struct regulator_config config = { }; | ||
346 | int i, ret; | ||
347 | |||
348 | pfuze_chip = devm_kzalloc(&client->dev, sizeof(*pfuze_chip), | ||
349 | GFP_KERNEL); | ||
350 | if (!pfuze_chip) | ||
351 | return -ENOMEM; | ||
352 | |||
353 | i2c_set_clientdata(client, pfuze_chip); | ||
354 | |||
355 | memcpy(pfuze_chip->regulator_descs, pfuze100_regulators, | ||
356 | sizeof(pfuze_chip->regulator_descs)); | ||
357 | |||
358 | pfuze_chip->dev = &client->dev; | ||
359 | |||
360 | pfuze_chip->regmap = devm_regmap_init_i2c(client, &pfuze_regmap_config); | ||
361 | if (IS_ERR(pfuze_chip->regmap)) { | ||
362 | ret = PTR_ERR(pfuze_chip->regmap); | ||
363 | dev_err(&client->dev, | ||
364 | "regmap allocation failed with err %d\n", ret); | ||
365 | return ret; | ||
366 | } | ||
367 | |||
368 | ret = pfuze_identify(pfuze_chip); | ||
369 | if (ret) { | ||
370 | dev_err(&client->dev, "unrecognized pfuze chip ID!\n"); | ||
371 | return ret; | ||
372 | } | ||
373 | |||
374 | ret = pfuze_parse_regulators_dt(pfuze_chip); | ||
375 | if (ret) | ||
376 | return ret; | ||
377 | |||
378 | for (i = 0; i < PFUZE100_MAX_REGULATOR; i++) { | ||
379 | struct regulator_init_data *init_data; | ||
380 | struct regulator_desc *desc; | ||
381 | int val; | ||
382 | |||
383 | desc = &pfuze_chip->regulator_descs[i].desc; | ||
384 | |||
385 | if (pdata) | ||
386 | init_data = pdata->init_data[i]; | ||
387 | else | ||
388 | init_data = match_init_data(i); | ||
389 | |||
390 | /* SW2~SW4 high bit check and modify the voltage value table */ | ||
391 | if (i > PFUZE100_SW1C && i < PFUZE100_SWBST) { | ||
392 | regmap_read(pfuze_chip->regmap, desc->vsel_reg, &val); | ||
393 | if (val & 0x40) { | ||
394 | desc->min_uV = 800000; | ||
395 | desc->uV_step = 50000; | ||
396 | desc->n_voltages = 51; | ||
397 | } | ||
398 | } | ||
399 | |||
400 | config.dev = &client->dev; | ||
401 | config.init_data = init_data; | ||
402 | config.driver_data = pfuze_chip; | ||
403 | config.of_node = match_of_node(i); | ||
404 | |||
405 | pfuze_chip->regulators[i] = regulator_register(desc, &config); | ||
406 | if (IS_ERR(pfuze_chip->regulators[i])) { | ||
407 | dev_err(&client->dev, "register regulator%s failed\n", | ||
408 | pfuze100_regulators[i].desc.name); | ||
409 | ret = PTR_ERR(pfuze_chip->regulators[i]); | ||
410 | while (--i >= 0) | ||
411 | regulator_unregister(pfuze_chip->regulators[i]); | ||
412 | return ret; | ||
413 | } | ||
414 | } | ||
415 | |||
416 | return 0; | ||
417 | } | ||
418 | |||
419 | static int pfuze100_regulator_remove(struct i2c_client *client) | ||
420 | { | ||
421 | int i; | ||
422 | struct pfuze_chip *pfuze_chip = i2c_get_clientdata(client); | ||
423 | |||
424 | for (i = 0; i < PFUZE100_MAX_REGULATOR; i++) | ||
425 | regulator_unregister(pfuze_chip->regulators[i]); | ||
426 | |||
427 | return 0; | ||
428 | } | ||
429 | |||
430 | static struct i2c_driver pfuze_driver = { | ||
431 | .id_table = pfuze_device_id, | ||
432 | .driver = { | ||
433 | .name = "pfuze100-regulator", | ||
434 | .owner = THIS_MODULE, | ||
435 | .of_match_table = pfuze_dt_ids, | ||
436 | }, | ||
437 | .probe = pfuze100_regulator_probe, | ||
438 | .remove = pfuze100_regulator_remove, | ||
439 | }; | ||
440 | module_i2c_driver(pfuze_driver); | ||
441 | |||
442 | MODULE_AUTHOR("Robin Gong <b38343@freescale.com>"); | ||
443 | MODULE_DESCRIPTION("Regulator Driver for Freescale PFUZE100 PMIC"); | ||
444 | MODULE_LICENSE("GPL v2"); | ||
445 | MODULE_ALIAS("i2c:pfuze100-regulator"); | ||
diff --git a/include/linux/regulator/pfuze100.h b/include/linux/regulator/pfuze100.h new file mode 100644 index 000000000000..65d550bf3954 --- /dev/null +++ b/include/linux/regulator/pfuze100.h | |||
@@ -0,0 +1,44 @@ | |||
1 | /* | ||
2 | * Copyright (C) 2011-2013 Freescale Semiconductor, Inc. All Rights Reserved. | ||
3 | * | ||
4 | * This program is free software; you can redistribute it and/or modify | ||
5 | * it under the terms of the GNU General Public License as published by | ||
6 | * the Free Software Foundation; either version 2 of the License, or | ||
7 | * (at your option) any later version. | ||
8 | * | ||
9 | * This program is distributed in the hope that it will be useful, | ||
10 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | ||
11 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | ||
12 | * GNU General Public License for more details. | ||
13 | * | ||
14 | * You should have received a copy of the GNU General Public License along | ||
15 | * with this program; if not, write to the Free Software Foundation, Inc., | ||
16 | * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. | ||
17 | */ | ||
18 | #ifndef __LINUX_REG_PFUZE100_H | ||
19 | #define __LINUX_REG_PFUZE100_H | ||
20 | |||
21 | #define PFUZE100_SW1AB 0 | ||
22 | #define PFUZE100_SW1C 1 | ||
23 | #define PFUZE100_SW2 2 | ||
24 | #define PFUZE100_SW3A 3 | ||
25 | #define PFUZE100_SW3B 4 | ||
26 | #define PFUZE100_SW4 5 | ||
27 | #define PFUZE100_SWBST 6 | ||
28 | #define PFUZE100_VSNVS 7 | ||
29 | #define PFUZE100_VREFDDR 8 | ||
30 | #define PFUZE100_VGEN1 9 | ||
31 | #define PFUZE100_VGEN2 10 | ||
32 | #define PFUZE100_VGEN3 11 | ||
33 | #define PFUZE100_VGEN4 12 | ||
34 | #define PFUZE100_VGEN5 13 | ||
35 | #define PFUZE100_VGEN6 14 | ||
36 | #define PFUZE100_MAX_REGULATOR 15 | ||
37 | |||
38 | struct regulator_init_data; | ||
39 | |||
40 | struct pfuze_regulator_platform_data { | ||
41 | struct regulator_init_data *init_data[PFUZE100_MAX_REGULATOR]; | ||
42 | }; | ||
43 | |||
44 | #endif /* __LINUX_REG_PFUZE100_H */ | ||