Commit | Line | Data |
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cfb61a41 | 1 | /* |
af7e9069 | 2 | * axp20x.c - MFD core driver for the X-Powers' Power Management ICs |
cfb61a41 | 3 | * |
af7e9069 JP |
4 | * AXP20x typically comprises an adaptive USB-Compatible PWM charger, BUCK DC-DC |
5 | * converters, LDOs, multiple 12-bit ADCs of voltage, current and temperature | |
6 | * as well as configurable GPIOs. | |
cfb61a41 CC |
7 | * |
8 | * Author: Carlo Caione <carlo@caione.org> | |
9 | * | |
10 | * This program is free software; you can redistribute it and/or modify | |
11 | * it under the terms of the GNU General Public License version 2 as | |
12 | * published by the Free Software Foundation. | |
13 | */ | |
14 | ||
15 | #include <linux/err.h> | |
16 | #include <linux/i2c.h> | |
17 | #include <linux/interrupt.h> | |
18 | #include <linux/kernel.h> | |
19 | #include <linux/module.h> | |
20 | #include <linux/pm_runtime.h> | |
21 | #include <linux/regmap.h> | |
22 | #include <linux/slab.h> | |
23 | #include <linux/regulator/consumer.h> | |
24 | #include <linux/mfd/axp20x.h> | |
25 | #include <linux/mfd/core.h> | |
26 | #include <linux/of_device.h> | |
27 | #include <linux/of_irq.h> | |
af7e9069 | 28 | #include <linux/acpi.h> |
cfb61a41 CC |
29 | |
30 | #define AXP20X_OFF 0x80 | |
31 | ||
af7e9069 JP |
32 | static const char const *axp20x_model_names[] = { |
33 | "AXP202", | |
34 | "AXP209", | |
35 | "AXP288", | |
36 | }; | |
37 | ||
cfb61a41 CC |
38 | static const struct regmap_range axp20x_writeable_ranges[] = { |
39 | regmap_reg_range(AXP20X_DATACACHE(0), AXP20X_IRQ5_STATE), | |
40 | regmap_reg_range(AXP20X_DCDC_MODE, AXP20X_FG_RES), | |
41 | }; | |
42 | ||
43 | static const struct regmap_range axp20x_volatile_ranges[] = { | |
44 | regmap_reg_range(AXP20X_IRQ1_EN, AXP20X_IRQ5_STATE), | |
45 | }; | |
46 | ||
47 | static const struct regmap_access_table axp20x_writeable_table = { | |
48 | .yes_ranges = axp20x_writeable_ranges, | |
49 | .n_yes_ranges = ARRAY_SIZE(axp20x_writeable_ranges), | |
50 | }; | |
51 | ||
52 | static const struct regmap_access_table axp20x_volatile_table = { | |
53 | .yes_ranges = axp20x_volatile_ranges, | |
54 | .n_yes_ranges = ARRAY_SIZE(axp20x_volatile_ranges), | |
55 | }; | |
56 | ||
af7e9069 JP |
57 | static const struct regmap_range axp288_writeable_ranges[] = { |
58 | regmap_reg_range(AXP20X_DATACACHE(0), AXP20X_IRQ6_STATE), | |
59 | regmap_reg_range(AXP20X_DCDC_MODE, AXP288_FG_TUNE5), | |
60 | }; | |
61 | ||
62 | static const struct regmap_range axp288_volatile_ranges[] = { | |
63 | regmap_reg_range(AXP20X_IRQ1_EN, AXP20X_IPSOUT_V_HIGH_L), | |
64 | }; | |
65 | ||
66 | static const struct regmap_access_table axp288_writeable_table = { | |
67 | .yes_ranges = axp288_writeable_ranges, | |
68 | .n_yes_ranges = ARRAY_SIZE(axp288_writeable_ranges), | |
69 | }; | |
70 | ||
71 | static const struct regmap_access_table axp288_volatile_table = { | |
72 | .yes_ranges = axp288_volatile_ranges, | |
73 | .n_yes_ranges = ARRAY_SIZE(axp288_volatile_ranges), | |
74 | }; | |
75 | ||
cfb61a41 CC |
76 | static struct resource axp20x_pek_resources[] = { |
77 | { | |
78 | .name = "PEK_DBR", | |
79 | .start = AXP20X_IRQ_PEK_RIS_EDGE, | |
80 | .end = AXP20X_IRQ_PEK_RIS_EDGE, | |
81 | .flags = IORESOURCE_IRQ, | |
82 | }, { | |
83 | .name = "PEK_DBF", | |
84 | .start = AXP20X_IRQ_PEK_FAL_EDGE, | |
85 | .end = AXP20X_IRQ_PEK_FAL_EDGE, | |
86 | .flags = IORESOURCE_IRQ, | |
87 | }, | |
88 | }; | |
89 | ||
af7e9069 JP |
90 | static struct resource axp288_battery_resources[] = { |
91 | { | |
92 | .start = AXP288_IRQ_QWBTU, | |
93 | .end = AXP288_IRQ_QWBTU, | |
94 | .flags = IORESOURCE_IRQ, | |
95 | }, | |
96 | { | |
97 | .start = AXP288_IRQ_WBTU, | |
98 | .end = AXP288_IRQ_WBTU, | |
99 | .flags = IORESOURCE_IRQ, | |
100 | }, | |
101 | { | |
102 | .start = AXP288_IRQ_QWBTO, | |
103 | .end = AXP288_IRQ_QWBTO, | |
104 | .flags = IORESOURCE_IRQ, | |
105 | }, | |
106 | { | |
107 | .start = AXP288_IRQ_WBTO, | |
108 | .end = AXP288_IRQ_WBTO, | |
109 | .flags = IORESOURCE_IRQ, | |
110 | }, | |
111 | { | |
112 | .start = AXP288_IRQ_WL2, | |
113 | .end = AXP288_IRQ_WL2, | |
114 | .flags = IORESOURCE_IRQ, | |
115 | }, | |
116 | { | |
117 | .start = AXP288_IRQ_WL1, | |
118 | .end = AXP288_IRQ_WL1, | |
119 | .flags = IORESOURCE_IRQ, | |
120 | }, | |
121 | }; | |
122 | ||
cfb61a41 CC |
123 | static const struct regmap_config axp20x_regmap_config = { |
124 | .reg_bits = 8, | |
125 | .val_bits = 8, | |
126 | .wr_table = &axp20x_writeable_table, | |
127 | .volatile_table = &axp20x_volatile_table, | |
128 | .max_register = AXP20X_FG_RES, | |
129 | .cache_type = REGCACHE_RBTREE, | |
130 | }; | |
131 | ||
af7e9069 JP |
132 | static const struct regmap_config axp288_regmap_config = { |
133 | .reg_bits = 8, | |
134 | .val_bits = 8, | |
135 | .wr_table = &axp288_writeable_table, | |
136 | .volatile_table = &axp288_volatile_table, | |
137 | .max_register = AXP288_FG_TUNE5, | |
138 | .cache_type = REGCACHE_RBTREE, | |
139 | }; | |
140 | ||
141 | #define INIT_REGMAP_IRQ(_variant, _irq, _off, _mask) \ | |
142 | [_variant##_IRQ_##_irq] = { .reg_offset = (_off), .mask = BIT(_mask) } | |
cfb61a41 CC |
143 | |
144 | static const struct regmap_irq axp20x_regmap_irqs[] = { | |
af7e9069 JP |
145 | INIT_REGMAP_IRQ(AXP20X, ACIN_OVER_V, 0, 7), |
146 | INIT_REGMAP_IRQ(AXP20X, ACIN_PLUGIN, 0, 6), | |
147 | INIT_REGMAP_IRQ(AXP20X, ACIN_REMOVAL, 0, 5), | |
148 | INIT_REGMAP_IRQ(AXP20X, VBUS_OVER_V, 0, 4), | |
149 | INIT_REGMAP_IRQ(AXP20X, VBUS_PLUGIN, 0, 3), | |
150 | INIT_REGMAP_IRQ(AXP20X, VBUS_REMOVAL, 0, 2), | |
151 | INIT_REGMAP_IRQ(AXP20X, VBUS_V_LOW, 0, 1), | |
152 | INIT_REGMAP_IRQ(AXP20X, BATT_PLUGIN, 1, 7), | |
153 | INIT_REGMAP_IRQ(AXP20X, BATT_REMOVAL, 1, 6), | |
154 | INIT_REGMAP_IRQ(AXP20X, BATT_ENT_ACT_MODE, 1, 5), | |
155 | INIT_REGMAP_IRQ(AXP20X, BATT_EXIT_ACT_MODE, 1, 4), | |
156 | INIT_REGMAP_IRQ(AXP20X, CHARG, 1, 3), | |
157 | INIT_REGMAP_IRQ(AXP20X, CHARG_DONE, 1, 2), | |
158 | INIT_REGMAP_IRQ(AXP20X, BATT_TEMP_HIGH, 1, 1), | |
159 | INIT_REGMAP_IRQ(AXP20X, BATT_TEMP_LOW, 1, 0), | |
160 | INIT_REGMAP_IRQ(AXP20X, DIE_TEMP_HIGH, 2, 7), | |
161 | INIT_REGMAP_IRQ(AXP20X, CHARG_I_LOW, 2, 6), | |
162 | INIT_REGMAP_IRQ(AXP20X, DCDC1_V_LONG, 2, 5), | |
163 | INIT_REGMAP_IRQ(AXP20X, DCDC2_V_LONG, 2, 4), | |
164 | INIT_REGMAP_IRQ(AXP20X, DCDC3_V_LONG, 2, 3), | |
165 | INIT_REGMAP_IRQ(AXP20X, PEK_SHORT, 2, 1), | |
166 | INIT_REGMAP_IRQ(AXP20X, PEK_LONG, 2, 0), | |
167 | INIT_REGMAP_IRQ(AXP20X, N_OE_PWR_ON, 3, 7), | |
168 | INIT_REGMAP_IRQ(AXP20X, N_OE_PWR_OFF, 3, 6), | |
169 | INIT_REGMAP_IRQ(AXP20X, VBUS_VALID, 3, 5), | |
170 | INIT_REGMAP_IRQ(AXP20X, VBUS_NOT_VALID, 3, 4), | |
171 | INIT_REGMAP_IRQ(AXP20X, VBUS_SESS_VALID, 3, 3), | |
172 | INIT_REGMAP_IRQ(AXP20X, VBUS_SESS_END, 3, 2), | |
173 | INIT_REGMAP_IRQ(AXP20X, LOW_PWR_LVL1, 3, 1), | |
174 | INIT_REGMAP_IRQ(AXP20X, LOW_PWR_LVL2, 3, 0), | |
175 | INIT_REGMAP_IRQ(AXP20X, TIMER, 4, 7), | |
176 | INIT_REGMAP_IRQ(AXP20X, PEK_RIS_EDGE, 4, 6), | |
177 | INIT_REGMAP_IRQ(AXP20X, PEK_FAL_EDGE, 4, 5), | |
178 | INIT_REGMAP_IRQ(AXP20X, GPIO3_INPUT, 4, 3), | |
179 | INIT_REGMAP_IRQ(AXP20X, GPIO2_INPUT, 4, 2), | |
180 | INIT_REGMAP_IRQ(AXP20X, GPIO1_INPUT, 4, 1), | |
181 | INIT_REGMAP_IRQ(AXP20X, GPIO0_INPUT, 4, 0), | |
182 | }; | |
183 | ||
184 | /* some IRQs are compatible with axp20x models */ | |
185 | static const struct regmap_irq axp288_regmap_irqs[] = { | |
186 | INIT_REGMAP_IRQ(AXP20X, VBUS_REMOVAL, 0, 2), | |
187 | INIT_REGMAP_IRQ(AXP20X, VBUS_PLUGIN, 0, 3), | |
188 | INIT_REGMAP_IRQ(AXP20X, VBUS_OVER_V, 0, 4), | |
189 | ||
190 | INIT_REGMAP_IRQ(AXP20X, CHARG_DONE, 1, 2), | |
191 | INIT_REGMAP_IRQ(AXP20X, CHARG, 1, 3), | |
192 | INIT_REGMAP_IRQ(AXP288, SAFE_QUIT, 1, 4), | |
193 | INIT_REGMAP_IRQ(AXP288, SAFE_ENTER, 1, 5), | |
194 | INIT_REGMAP_IRQ(AXP20X, BATT_REMOVAL, 1, 6), | |
195 | INIT_REGMAP_IRQ(AXP20X, BATT_PLUGIN, 1, 7), | |
196 | ||
197 | INIT_REGMAP_IRQ(AXP288, QWBTU, 2, 0), | |
198 | INIT_REGMAP_IRQ(AXP288, WBTU, 2, 1), | |
199 | INIT_REGMAP_IRQ(AXP288, QWBTO, 2, 2), | |
200 | INIT_REGMAP_IRQ(AXP288, WBTU, 2, 3), | |
201 | INIT_REGMAP_IRQ(AXP288, QCBTU, 2, 4), | |
202 | INIT_REGMAP_IRQ(AXP288, CBTU, 2, 5), | |
203 | INIT_REGMAP_IRQ(AXP288, QCBTO, 2, 6), | |
204 | INIT_REGMAP_IRQ(AXP288, CBTO, 2, 7), | |
205 | ||
206 | INIT_REGMAP_IRQ(AXP288, WL2, 3, 0), | |
207 | INIT_REGMAP_IRQ(AXP288, WL1, 3, 1), | |
208 | INIT_REGMAP_IRQ(AXP288, GPADC, 3, 2), | |
209 | INIT_REGMAP_IRQ(AXP288, OT, 3, 7), | |
210 | ||
211 | INIT_REGMAP_IRQ(AXP288, GPIO0, 4, 0), | |
212 | INIT_REGMAP_IRQ(AXP288, GPIO1, 4, 1), | |
213 | INIT_REGMAP_IRQ(AXP288, POKO, 4, 2), | |
214 | INIT_REGMAP_IRQ(AXP288, POKL, 4, 3), | |
215 | INIT_REGMAP_IRQ(AXP288, POKS, 4, 4), | |
216 | INIT_REGMAP_IRQ(AXP288, POKN, 4, 5), | |
217 | INIT_REGMAP_IRQ(AXP288, POKP, 4, 6), | |
218 | INIT_REGMAP_IRQ(AXP20X, TIMER, 4, 7), | |
219 | ||
220 | INIT_REGMAP_IRQ(AXP288, MV_CHNG, 5, 0), | |
221 | INIT_REGMAP_IRQ(AXP288, BC_USB_CHNG, 5, 1), | |
cfb61a41 CC |
222 | }; |
223 | ||
224 | static const struct of_device_id axp20x_of_match[] = { | |
225 | { .compatible = "x-powers,axp202", .data = (void *) AXP202_ID }, | |
226 | { .compatible = "x-powers,axp209", .data = (void *) AXP209_ID }, | |
227 | { }, | |
228 | }; | |
229 | MODULE_DEVICE_TABLE(of, axp20x_of_match); | |
230 | ||
231 | /* | |
232 | * This is useless for OF-enabled devices, but it is needed by I2C subsystem | |
233 | */ | |
234 | static const struct i2c_device_id axp20x_i2c_id[] = { | |
235 | { }, | |
236 | }; | |
237 | MODULE_DEVICE_TABLE(i2c, axp20x_i2c_id); | |
238 | ||
af7e9069 JP |
239 | static struct acpi_device_id axp20x_acpi_match[] = { |
240 | { | |
241 | .id = "INT33F4", | |
242 | .driver_data = AXP288_ID, | |
243 | }, | |
244 | { }, | |
245 | }; | |
246 | MODULE_DEVICE_TABLE(acpi, axp20x_acpi_match); | |
247 | ||
cfb61a41 CC |
248 | static const struct regmap_irq_chip axp20x_regmap_irq_chip = { |
249 | .name = "axp20x_irq_chip", | |
250 | .status_base = AXP20X_IRQ1_STATE, | |
251 | .ack_base = AXP20X_IRQ1_STATE, | |
252 | .mask_base = AXP20X_IRQ1_EN, | |
af7e9069 JP |
253 | .mask_invert = true, |
254 | .init_ack_masked = true, | |
cfb61a41 CC |
255 | .irqs = axp20x_regmap_irqs, |
256 | .num_irqs = ARRAY_SIZE(axp20x_regmap_irqs), | |
af7e9069 JP |
257 | .num_regs = 5, |
258 | ||
259 | }; | |
260 | ||
261 | static const struct regmap_irq_chip axp288_regmap_irq_chip = { | |
262 | .name = "axp288_irq_chip", | |
263 | .status_base = AXP20X_IRQ1_STATE, | |
264 | .ack_base = AXP20X_IRQ1_STATE, | |
265 | .mask_base = AXP20X_IRQ1_EN, | |
cfb61a41 CC |
266 | .mask_invert = true, |
267 | .init_ack_masked = true, | |
af7e9069 JP |
268 | .irqs = axp288_regmap_irqs, |
269 | .num_irqs = ARRAY_SIZE(axp288_regmap_irqs), | |
270 | .num_regs = 6, | |
271 | ||
cfb61a41 CC |
272 | }; |
273 | ||
274 | static const char * const axp20x_supplies[] = { | |
275 | "acin", | |
276 | "vin2", | |
277 | "vin3", | |
278 | "ldo24in", | |
279 | "ldo3in", | |
280 | "ldo5in", | |
281 | }; | |
282 | ||
283 | static struct mfd_cell axp20x_cells[] = { | |
284 | { | |
285 | .name = "axp20x-pek", | |
286 | .num_resources = ARRAY_SIZE(axp20x_pek_resources), | |
287 | .resources = axp20x_pek_resources, | |
288 | }, { | |
289 | .name = "axp20x-regulator", | |
290 | .parent_supplies = axp20x_supplies, | |
291 | .num_parent_supplies = ARRAY_SIZE(axp20x_supplies), | |
292 | }, | |
293 | }; | |
294 | ||
af7e9069 JP |
295 | static struct resource axp288_adc_resources[] = { |
296 | { | |
297 | .name = "GPADC", | |
298 | .start = AXP288_IRQ_GPADC, | |
299 | .end = AXP288_IRQ_GPADC, | |
300 | .flags = IORESOURCE_IRQ, | |
301 | }, | |
302 | }; | |
303 | ||
304 | static struct resource axp288_charger_resources[] = { | |
305 | { | |
306 | .start = AXP288_IRQ_OV, | |
307 | .end = AXP288_IRQ_OV, | |
308 | .flags = IORESOURCE_IRQ, | |
309 | }, | |
310 | { | |
311 | .start = AXP288_IRQ_DONE, | |
312 | .end = AXP288_IRQ_DONE, | |
313 | .flags = IORESOURCE_IRQ, | |
314 | }, | |
315 | { | |
316 | .start = AXP288_IRQ_CHARGING, | |
317 | .end = AXP288_IRQ_CHARGING, | |
318 | .flags = IORESOURCE_IRQ, | |
319 | }, | |
320 | { | |
321 | .start = AXP288_IRQ_SAFE_QUIT, | |
322 | .end = AXP288_IRQ_SAFE_QUIT, | |
323 | .flags = IORESOURCE_IRQ, | |
324 | }, | |
325 | { | |
326 | .start = AXP288_IRQ_SAFE_ENTER, | |
327 | .end = AXP288_IRQ_SAFE_ENTER, | |
328 | .flags = IORESOURCE_IRQ, | |
329 | }, | |
330 | { | |
331 | .start = AXP288_IRQ_QCBTU, | |
332 | .end = AXP288_IRQ_QCBTU, | |
333 | .flags = IORESOURCE_IRQ, | |
334 | }, | |
335 | { | |
336 | .start = AXP288_IRQ_CBTU, | |
337 | .end = AXP288_IRQ_CBTU, | |
338 | .flags = IORESOURCE_IRQ, | |
339 | }, | |
340 | { | |
341 | .start = AXP288_IRQ_QCBTO, | |
342 | .end = AXP288_IRQ_QCBTO, | |
343 | .flags = IORESOURCE_IRQ, | |
344 | }, | |
345 | { | |
346 | .start = AXP288_IRQ_CBTO, | |
347 | .end = AXP288_IRQ_CBTO, | |
348 | .flags = IORESOURCE_IRQ, | |
349 | }, | |
350 | }; | |
351 | ||
352 | static struct mfd_cell axp288_cells[] = { | |
353 | { | |
354 | .name = "axp288_adc", | |
355 | .num_resources = ARRAY_SIZE(axp288_adc_resources), | |
356 | .resources = axp288_adc_resources, | |
357 | }, | |
358 | { | |
359 | .name = "axp288_charger", | |
360 | .num_resources = ARRAY_SIZE(axp288_charger_resources), | |
361 | .resources = axp288_charger_resources, | |
362 | }, | |
363 | { | |
364 | .name = "axp288_battery", | |
365 | .num_resources = ARRAY_SIZE(axp288_battery_resources), | |
366 | .resources = axp288_battery_resources, | |
367 | }, | |
368 | }; | |
369 | ||
cfb61a41 CC |
370 | static struct axp20x_dev *axp20x_pm_power_off; |
371 | static void axp20x_power_off(void) | |
372 | { | |
af7e9069 JP |
373 | if (axp20x_pm_power_off->variant == AXP288_ID) |
374 | return; | |
375 | ||
cfb61a41 CC |
376 | regmap_write(axp20x_pm_power_off->regmap, AXP20X_OFF_CTRL, |
377 | AXP20X_OFF); | |
378 | } | |
379 | ||
af7e9069 JP |
380 | static int axp20x_match_device(struct axp20x_dev *axp20x, struct device *dev) |
381 | { | |
382 | const struct acpi_device_id *acpi_id; | |
383 | const struct of_device_id *of_id; | |
384 | ||
385 | if (dev->of_node) { | |
386 | of_id = of_match_device(axp20x_of_match, dev); | |
387 | if (!of_id) { | |
388 | dev_err(dev, "Unable to match OF ID\n"); | |
389 | return -ENODEV; | |
390 | } | |
391 | axp20x->variant = (long) of_id->data; | |
392 | } else { | |
393 | acpi_id = acpi_match_device(dev->driver->acpi_match_table, dev); | |
394 | if (!acpi_id || !acpi_id->driver_data) { | |
395 | dev_err(dev, "Unable to match ACPI ID and data\n"); | |
396 | return -ENODEV; | |
397 | } | |
398 | axp20x->variant = (long) acpi_id->driver_data; | |
399 | } | |
400 | ||
401 | switch (axp20x->variant) { | |
402 | case AXP202_ID: | |
403 | case AXP209_ID: | |
404 | axp20x->nr_cells = ARRAY_SIZE(axp20x_cells); | |
405 | axp20x->cells = axp20x_cells; | |
406 | axp20x->regmap_cfg = &axp20x_regmap_config; | |
407 | axp20x->regmap_irq_chip = &axp20x_regmap_irq_chip; | |
408 | break; | |
409 | case AXP288_ID: | |
410 | axp20x->cells = axp288_cells; | |
411 | axp20x->nr_cells = ARRAY_SIZE(axp288_cells); | |
412 | axp20x->regmap_cfg = &axp288_regmap_config; | |
413 | axp20x->regmap_irq_chip = &axp288_regmap_irq_chip; | |
414 | break; | |
415 | default: | |
416 | dev_err(dev, "unsupported AXP20X ID %lu\n", axp20x->variant); | |
417 | return -EINVAL; | |
418 | } | |
419 | dev_info(dev, "AXP20x variant %s found\n", | |
420 | axp20x_model_names[axp20x->variant]); | |
421 | ||
422 | return 0; | |
423 | } | |
424 | ||
cfb61a41 CC |
425 | static int axp20x_i2c_probe(struct i2c_client *i2c, |
426 | const struct i2c_device_id *id) | |
427 | { | |
428 | struct axp20x_dev *axp20x; | |
cfb61a41 CC |
429 | int ret; |
430 | ||
431 | axp20x = devm_kzalloc(&i2c->dev, sizeof(*axp20x), GFP_KERNEL); | |
432 | if (!axp20x) | |
433 | return -ENOMEM; | |
434 | ||
af7e9069 JP |
435 | ret = axp20x_match_device(axp20x, &i2c->dev); |
436 | if (ret) | |
437 | return ret; | |
cfb61a41 CC |
438 | |
439 | axp20x->i2c_client = i2c; | |
440 | axp20x->dev = &i2c->dev; | |
441 | dev_set_drvdata(axp20x->dev, axp20x); | |
442 | ||
af7e9069 | 443 | axp20x->regmap = devm_regmap_init_i2c(i2c, axp20x->regmap_cfg); |
cfb61a41 CC |
444 | if (IS_ERR(axp20x->regmap)) { |
445 | ret = PTR_ERR(axp20x->regmap); | |
446 | dev_err(&i2c->dev, "regmap init failed: %d\n", ret); | |
447 | return ret; | |
448 | } | |
449 | ||
450 | ret = regmap_add_irq_chip(axp20x->regmap, i2c->irq, | |
451 | IRQF_ONESHOT | IRQF_SHARED, -1, | |
af7e9069 | 452 | axp20x->regmap_irq_chip, |
cfb61a41 CC |
453 | &axp20x->regmap_irqc); |
454 | if (ret) { | |
455 | dev_err(&i2c->dev, "failed to add irq chip: %d\n", ret); | |
456 | return ret; | |
457 | } | |
458 | ||
af7e9069 JP |
459 | ret = mfd_add_devices(axp20x->dev, -1, axp20x->cells, |
460 | axp20x->nr_cells, NULL, 0, NULL); | |
cfb61a41 CC |
461 | |
462 | if (ret) { | |
463 | dev_err(&i2c->dev, "failed to add MFD devices: %d\n", ret); | |
464 | regmap_del_irq_chip(i2c->irq, axp20x->regmap_irqc); | |
465 | return ret; | |
466 | } | |
467 | ||
468 | if (!pm_power_off) { | |
469 | axp20x_pm_power_off = axp20x; | |
470 | pm_power_off = axp20x_power_off; | |
471 | } | |
472 | ||
473 | dev_info(&i2c->dev, "AXP20X driver loaded\n"); | |
474 | ||
475 | return 0; | |
476 | } | |
477 | ||
478 | static int axp20x_i2c_remove(struct i2c_client *i2c) | |
479 | { | |
480 | struct axp20x_dev *axp20x = i2c_get_clientdata(i2c); | |
481 | ||
482 | if (axp20x == axp20x_pm_power_off) { | |
483 | axp20x_pm_power_off = NULL; | |
484 | pm_power_off = NULL; | |
485 | } | |
486 | ||
487 | mfd_remove_devices(axp20x->dev); | |
488 | regmap_del_irq_chip(axp20x->i2c_client->irq, axp20x->regmap_irqc); | |
489 | ||
490 | return 0; | |
491 | } | |
492 | ||
493 | static struct i2c_driver axp20x_i2c_driver = { | |
494 | .driver = { | |
495 | .name = "axp20x", | |
496 | .owner = THIS_MODULE, | |
497 | .of_match_table = of_match_ptr(axp20x_of_match), | |
af7e9069 | 498 | .acpi_match_table = ACPI_PTR(axp20x_acpi_match), |
cfb61a41 CC |
499 | }, |
500 | .probe = axp20x_i2c_probe, | |
501 | .remove = axp20x_i2c_remove, | |
502 | .id_table = axp20x_i2c_id, | |
503 | }; | |
504 | ||
505 | module_i2c_driver(axp20x_i2c_driver); | |
506 | ||
507 | MODULE_DESCRIPTION("PMIC MFD core driver for AXP20X"); | |
508 | MODULE_AUTHOR("Carlo Caione <carlo@caione.org>"); | |
509 | MODULE_LICENSE("GPL"); |