Commit | Line | Data |
---|---|---|
d2912cb1 | 1 | // SPDX-License-Identifier: GPL-2.0-only |
c6c19332 MR |
2 | /* |
3 | * Core driver for TI TPS6586x PMIC family | |
4 | * | |
5 | * Copyright (c) 2010 CompuLab Ltd. | |
6 | * Mike Rapoport <mike@compulab.co.il> | |
7 | * | |
8 | * Based on da903x.c. | |
9 | * Copyright (C) 2008 Compulab, Ltd. | |
10 | * Mike Rapoport <mike@compulab.co.il> | |
11 | * Copyright (C) 2006-2008 Marvell International Ltd. | |
12 | * Eric Miao <eric.miao@marvell.com> | |
c6c19332 MR |
13 | */ |
14 | ||
c26448c4 GK |
15 | #include <linux/interrupt.h> |
16 | #include <linux/irq.h> | |
605511a8 | 17 | #include <linux/irqdomain.h> |
c6c19332 MR |
18 | #include <linux/kernel.h> |
19 | #include <linux/module.h> | |
20 | #include <linux/mutex.h> | |
21 | #include <linux/slab.h> | |
1176b5be | 22 | #include <linux/err.h> |
c6c19332 | 23 | #include <linux/i2c.h> |
605511a8 | 24 | #include <linux/platform_device.h> |
8bd141b1 | 25 | #include <linux/reboot.h> |
1176b5be | 26 | #include <linux/regmap.h> |
06bf3c2f | 27 | #include <linux/of.h> |
c6c19332 MR |
28 | |
29 | #include <linux/mfd/core.h> | |
30 | #include <linux/mfd/tps6586x.h> | |
31 | ||
004c15a6 | 32 | #define TPS6586X_SUPPLYENE 0x14 |
510f276d | 33 | #define SOFT_RST_BIT BIT(0) |
004c15a6 BH |
34 | #define EXITSLREQ_BIT BIT(1) |
35 | #define SLEEP_MODE_BIT BIT(3) | |
36 | ||
c26448c4 GK |
37 | /* interrupt control registers */ |
38 | #define TPS6586X_INT_ACK1 0xb5 | |
39 | #define TPS6586X_INT_ACK2 0xb6 | |
40 | #define TPS6586X_INT_ACK3 0xb7 | |
41 | #define TPS6586X_INT_ACK4 0xb8 | |
42 | ||
43 | /* interrupt mask registers */ | |
44 | #define TPS6586X_INT_MASK1 0xb0 | |
45 | #define TPS6586X_INT_MASK2 0xb1 | |
46 | #define TPS6586X_INT_MASK3 0xb2 | |
47 | #define TPS6586X_INT_MASK4 0xb3 | |
48 | #define TPS6586X_INT_MASK5 0xb4 | |
49 | ||
c6c19332 MR |
50 | /* device id */ |
51 | #define TPS6586X_VERSIONCRC 0xcd | |
c6c19332 | 52 | |
1176b5be | 53 | /* Maximum register */ |
088d862c | 54 | #define TPS6586X_MAX_REGISTER TPS6586X_VERSIONCRC |
1176b5be | 55 | |
c26448c4 GK |
56 | struct tps6586x_irq_data { |
57 | u8 mask_reg; | |
58 | u8 mask_mask; | |
59 | }; | |
60 | ||
61 | #define TPS6586X_IRQ(_reg, _mask) \ | |
62 | { \ | |
63 | .mask_reg = (_reg) - TPS6586X_INT_MASK1, \ | |
64 | .mask_mask = (_mask), \ | |
65 | } | |
66 | ||
67 | static const struct tps6586x_irq_data tps6586x_irqs[] = { | |
68 | [TPS6586X_INT_PLDO_0] = TPS6586X_IRQ(TPS6586X_INT_MASK1, 1 << 0), | |
69 | [TPS6586X_INT_PLDO_1] = TPS6586X_IRQ(TPS6586X_INT_MASK1, 1 << 1), | |
70 | [TPS6586X_INT_PLDO_2] = TPS6586X_IRQ(TPS6586X_INT_MASK1, 1 << 2), | |
71 | [TPS6586X_INT_PLDO_3] = TPS6586X_IRQ(TPS6586X_INT_MASK1, 1 << 3), | |
72 | [TPS6586X_INT_PLDO_4] = TPS6586X_IRQ(TPS6586X_INT_MASK1, 1 << 4), | |
73 | [TPS6586X_INT_PLDO_5] = TPS6586X_IRQ(TPS6586X_INT_MASK1, 1 << 5), | |
74 | [TPS6586X_INT_PLDO_6] = TPS6586X_IRQ(TPS6586X_INT_MASK1, 1 << 6), | |
75 | [TPS6586X_INT_PLDO_7] = TPS6586X_IRQ(TPS6586X_INT_MASK1, 1 << 7), | |
76 | [TPS6586X_INT_COMP_DET] = TPS6586X_IRQ(TPS6586X_INT_MASK4, 1 << 0), | |
77 | [TPS6586X_INT_ADC] = TPS6586X_IRQ(TPS6586X_INT_MASK2, 1 << 1), | |
78 | [TPS6586X_INT_PLDO_8] = TPS6586X_IRQ(TPS6586X_INT_MASK2, 1 << 2), | |
79 | [TPS6586X_INT_PLDO_9] = TPS6586X_IRQ(TPS6586X_INT_MASK2, 1 << 3), | |
80 | [TPS6586X_INT_PSM_0] = TPS6586X_IRQ(TPS6586X_INT_MASK2, 1 << 4), | |
81 | [TPS6586X_INT_PSM_1] = TPS6586X_IRQ(TPS6586X_INT_MASK2, 1 << 5), | |
82 | [TPS6586X_INT_PSM_2] = TPS6586X_IRQ(TPS6586X_INT_MASK2, 1 << 6), | |
83 | [TPS6586X_INT_PSM_3] = TPS6586X_IRQ(TPS6586X_INT_MASK2, 1 << 7), | |
84 | [TPS6586X_INT_RTC_ALM1] = TPS6586X_IRQ(TPS6586X_INT_MASK5, 1 << 4), | |
85 | [TPS6586X_INT_ACUSB_OVP] = TPS6586X_IRQ(TPS6586X_INT_MASK5, 0x03), | |
86 | [TPS6586X_INT_USB_DET] = TPS6586X_IRQ(TPS6586X_INT_MASK5, 1 << 2), | |
87 | [TPS6586X_INT_AC_DET] = TPS6586X_IRQ(TPS6586X_INT_MASK5, 1 << 3), | |
88 | [TPS6586X_INT_BAT_DET] = TPS6586X_IRQ(TPS6586X_INT_MASK3, 1 << 0), | |
89 | [TPS6586X_INT_CHG_STAT] = TPS6586X_IRQ(TPS6586X_INT_MASK4, 0xfc), | |
90 | [TPS6586X_INT_CHG_TEMP] = TPS6586X_IRQ(TPS6586X_INT_MASK3, 0x06), | |
91 | [TPS6586X_INT_PP] = TPS6586X_IRQ(TPS6586X_INT_MASK3, 0xf0), | |
92 | [TPS6586X_INT_RESUME] = TPS6586X_IRQ(TPS6586X_INT_MASK5, 1 << 5), | |
93 | [TPS6586X_INT_LOW_SYS] = TPS6586X_IRQ(TPS6586X_INT_MASK5, 1 << 6), | |
94 | [TPS6586X_INT_RTC_ALM2] = TPS6586X_IRQ(TPS6586X_INT_MASK4, 1 << 1), | |
95 | }; | |
96 | ||
c4a164f4 | 97 | static const struct resource tps6586x_rtc_resources[] = { |
5b8b1fe2 LD |
98 | { |
99 | .start = TPS6586X_INT_RTC_ALM1, | |
100 | .end = TPS6586X_INT_RTC_ALM1, | |
101 | .flags = IORESOURCE_IRQ, | |
102 | }, | |
103 | }; | |
104 | ||
30fe2b5b | 105 | static const struct mfd_cell tps6586x_cell[] = { |
7a7487cb LD |
106 | { |
107 | .name = "tps6586x-gpio", | |
108 | }, | |
64e48160 | 109 | { |
ec8da805 | 110 | .name = "tps6586x-regulator", |
64e48160 | 111 | }, |
7a7487cb LD |
112 | { |
113 | .name = "tps6586x-rtc", | |
5b8b1fe2 LD |
114 | .num_resources = ARRAY_SIZE(tps6586x_rtc_resources), |
115 | .resources = &tps6586x_rtc_resources[0], | |
7a7487cb LD |
116 | }, |
117 | { | |
118 | .name = "tps6586x-onkey", | |
119 | }, | |
120 | }; | |
121 | ||
c6c19332 | 122 | struct tps6586x { |
c6c19332 MR |
123 | struct device *dev; |
124 | struct i2c_client *client; | |
1176b5be | 125 | struct regmap *regmap; |
e0a3da80 | 126 | int version; |
c6c19332 | 127 | |
234506ad | 128 | int irq; |
c26448c4 GK |
129 | struct irq_chip irq_chip; |
130 | struct mutex irq_lock; | |
131 | int irq_base; | |
132 | u32 irq_en; | |
c26448c4 | 133 | u8 mask_reg[5]; |
605511a8 | 134 | struct irq_domain *irq_domain; |
c6c19332 MR |
135 | }; |
136 | ||
1176b5be | 137 | static inline struct tps6586x *dev_to_tps6586x(struct device *dev) |
c6c19332 | 138 | { |
1176b5be | 139 | return i2c_get_clientdata(to_i2c_client(dev)); |
c6c19332 MR |
140 | } |
141 | ||
142 | int tps6586x_write(struct device *dev, int reg, uint8_t val) | |
143 | { | |
1176b5be LD |
144 | struct tps6586x *tps6586x = dev_to_tps6586x(dev); |
145 | ||
146 | return regmap_write(tps6586x->regmap, reg, val); | |
c6c19332 MR |
147 | } |
148 | EXPORT_SYMBOL_GPL(tps6586x_write); | |
149 | ||
150 | int tps6586x_writes(struct device *dev, int reg, int len, uint8_t *val) | |
151 | { | |
1176b5be LD |
152 | struct tps6586x *tps6586x = dev_to_tps6586x(dev); |
153 | ||
154 | return regmap_bulk_write(tps6586x->regmap, reg, val, len); | |
c6c19332 MR |
155 | } |
156 | EXPORT_SYMBOL_GPL(tps6586x_writes); | |
157 | ||
158 | int tps6586x_read(struct device *dev, int reg, uint8_t *val) | |
159 | { | |
1176b5be LD |
160 | struct tps6586x *tps6586x = dev_to_tps6586x(dev); |
161 | unsigned int rval; | |
162 | int ret; | |
163 | ||
164 | ret = regmap_read(tps6586x->regmap, reg, &rval); | |
165 | if (!ret) | |
166 | *val = rval; | |
167 | return ret; | |
c6c19332 MR |
168 | } |
169 | EXPORT_SYMBOL_GPL(tps6586x_read); | |
170 | ||
171 | int tps6586x_reads(struct device *dev, int reg, int len, uint8_t *val) | |
172 | { | |
1176b5be LD |
173 | struct tps6586x *tps6586x = dev_to_tps6586x(dev); |
174 | ||
175 | return regmap_bulk_read(tps6586x->regmap, reg, val, len); | |
c6c19332 MR |
176 | } |
177 | EXPORT_SYMBOL_GPL(tps6586x_reads); | |
178 | ||
179 | int tps6586x_set_bits(struct device *dev, int reg, uint8_t bit_mask) | |
180 | { | |
1176b5be | 181 | struct tps6586x *tps6586x = dev_to_tps6586x(dev); |
c6c19332 | 182 | |
1176b5be | 183 | return regmap_update_bits(tps6586x->regmap, reg, bit_mask, bit_mask); |
c6c19332 MR |
184 | } |
185 | EXPORT_SYMBOL_GPL(tps6586x_set_bits); | |
186 | ||
187 | int tps6586x_clr_bits(struct device *dev, int reg, uint8_t bit_mask) | |
188 | { | |
1176b5be | 189 | struct tps6586x *tps6586x = dev_to_tps6586x(dev); |
c6c19332 | 190 | |
1176b5be | 191 | return regmap_update_bits(tps6586x->regmap, reg, bit_mask, 0); |
c6c19332 MR |
192 | } |
193 | EXPORT_SYMBOL_GPL(tps6586x_clr_bits); | |
194 | ||
195 | int tps6586x_update(struct device *dev, int reg, uint8_t val, uint8_t mask) | |
196 | { | |
1176b5be | 197 | struct tps6586x *tps6586x = dev_to_tps6586x(dev); |
c6c19332 | 198 | |
1176b5be | 199 | return regmap_update_bits(tps6586x->regmap, reg, mask, val); |
c6c19332 MR |
200 | } |
201 | EXPORT_SYMBOL_GPL(tps6586x_update); | |
202 | ||
605511a8 LD |
203 | int tps6586x_irq_get_virq(struct device *dev, int irq) |
204 | { | |
205 | struct tps6586x *tps6586x = dev_to_tps6586x(dev); | |
206 | ||
207 | return irq_create_mapping(tps6586x->irq_domain, irq); | |
208 | } | |
209 | EXPORT_SYMBOL_GPL(tps6586x_irq_get_virq); | |
210 | ||
e0a3da80 SA |
211 | int tps6586x_get_version(struct device *dev) |
212 | { | |
213 | struct tps6586x *tps6586x = dev_get_drvdata(dev); | |
214 | ||
215 | return tps6586x->version; | |
216 | } | |
217 | EXPORT_SYMBOL_GPL(tps6586x_get_version); | |
218 | ||
c6c19332 MR |
219 | static int __remove_subdev(struct device *dev, void *unused) |
220 | { | |
221 | platform_device_unregister(to_platform_device(dev)); | |
222 | return 0; | |
223 | } | |
224 | ||
225 | static int tps6586x_remove_subdevs(struct tps6586x *tps6586x) | |
226 | { | |
227 | return device_for_each_child(tps6586x->dev, NULL, __remove_subdev); | |
228 | } | |
229 | ||
96e824bd | 230 | static void tps6586x_irq_lock(struct irq_data *data) |
c26448c4 | 231 | { |
96e824bd | 232 | struct tps6586x *tps6586x = irq_data_get_irq_chip_data(data); |
c26448c4 GK |
233 | |
234 | mutex_lock(&tps6586x->irq_lock); | |
235 | } | |
236 | ||
96e824bd | 237 | static void tps6586x_irq_enable(struct irq_data *irq_data) |
c26448c4 | 238 | { |
96e824bd | 239 | struct tps6586x *tps6586x = irq_data_get_irq_chip_data(irq_data); |
605511a8 | 240 | unsigned int __irq = irq_data->hwirq; |
c26448c4 GK |
241 | const struct tps6586x_irq_data *data = &tps6586x_irqs[__irq]; |
242 | ||
243 | tps6586x->mask_reg[data->mask_reg] &= ~data->mask_mask; | |
244 | tps6586x->irq_en |= (1 << __irq); | |
245 | } | |
246 | ||
96e824bd | 247 | static void tps6586x_irq_disable(struct irq_data *irq_data) |
c26448c4 | 248 | { |
96e824bd | 249 | struct tps6586x *tps6586x = irq_data_get_irq_chip_data(irq_data); |
c26448c4 | 250 | |
605511a8 | 251 | unsigned int __irq = irq_data->hwirq; |
c26448c4 GK |
252 | const struct tps6586x_irq_data *data = &tps6586x_irqs[__irq]; |
253 | ||
254 | tps6586x->mask_reg[data->mask_reg] |= data->mask_mask; | |
255 | tps6586x->irq_en &= ~(1 << __irq); | |
256 | } | |
257 | ||
96e824bd | 258 | static void tps6586x_irq_sync_unlock(struct irq_data *data) |
c26448c4 | 259 | { |
96e824bd | 260 | struct tps6586x *tps6586x = irq_data_get_irq_chip_data(data); |
c26448c4 GK |
261 | int i; |
262 | ||
263 | for (i = 0; i < ARRAY_SIZE(tps6586x->mask_reg); i++) { | |
75edd5af LD |
264 | int ret; |
265 | ret = tps6586x_write(tps6586x->dev, | |
266 | TPS6586X_INT_MASK1 + i, | |
267 | tps6586x->mask_reg[i]); | |
268 | WARN_ON(ret); | |
c26448c4 GK |
269 | } |
270 | ||
271 | mutex_unlock(&tps6586x->irq_lock); | |
272 | } | |
273 | ||
234506ad SW |
274 | static int tps6586x_irq_set_wake(struct irq_data *irq_data, unsigned int on) |
275 | { | |
276 | struct tps6586x *tps6586x = irq_data_get_irq_chip_data(irq_data); | |
277 | return irq_set_irq_wake(tps6586x->irq, on); | |
278 | } | |
234506ad | 279 | |
605511a8 LD |
280 | static struct irq_chip tps6586x_irq_chip = { |
281 | .name = "tps6586x", | |
282 | .irq_bus_lock = tps6586x_irq_lock, | |
283 | .irq_bus_sync_unlock = tps6586x_irq_sync_unlock, | |
284 | .irq_disable = tps6586x_irq_disable, | |
285 | .irq_enable = tps6586x_irq_enable, | |
d115e88c | 286 | .irq_set_wake = pm_sleep_ptr(tps6586x_irq_set_wake), |
605511a8 LD |
287 | }; |
288 | ||
289 | static int tps6586x_irq_map(struct irq_domain *h, unsigned int virq, | |
290 | irq_hw_number_t hw) | |
291 | { | |
292 | struct tps6586x *tps6586x = h->host_data; | |
293 | ||
294 | irq_set_chip_data(virq, tps6586x); | |
295 | irq_set_chip_and_handler(virq, &tps6586x_irq_chip, handle_simple_irq); | |
296 | irq_set_nested_thread(virq, 1); | |
605511a8 | 297 | irq_set_noprobe(virq); |
605511a8 LD |
298 | |
299 | return 0; | |
300 | } | |
301 | ||
7ce7b26f | 302 | static const struct irq_domain_ops tps6586x_domain_ops = { |
605511a8 LD |
303 | .map = tps6586x_irq_map, |
304 | .xlate = irq_domain_xlate_twocell, | |
305 | }; | |
306 | ||
c26448c4 GK |
307 | static irqreturn_t tps6586x_irq(int irq, void *data) |
308 | { | |
309 | struct tps6586x *tps6586x = data; | |
c504a248 LJ |
310 | uint32_t acks; |
311 | __le32 val; | |
c26448c4 GK |
312 | int ret = 0; |
313 | ||
314 | ret = tps6586x_reads(tps6586x->dev, TPS6586X_INT_ACK1, | |
c504a248 | 315 | sizeof(acks), (uint8_t *)&val); |
c26448c4 GK |
316 | |
317 | if (ret < 0) { | |
318 | dev_err(tps6586x->dev, "failed to read interrupt status\n"); | |
319 | return IRQ_NONE; | |
320 | } | |
321 | ||
c504a248 | 322 | acks = le32_to_cpu(val); |
c26448c4 GK |
323 | |
324 | while (acks) { | |
325 | int i = __ffs(acks); | |
326 | ||
327 | if (tps6586x->irq_en & (1 << i)) | |
605511a8 LD |
328 | handle_nested_irq( |
329 | irq_find_mapping(tps6586x->irq_domain, i)); | |
c26448c4 GK |
330 | |
331 | acks &= ~(1 << i); | |
332 | } | |
333 | ||
334 | return IRQ_HANDLED; | |
335 | } | |
336 | ||
f791be49 | 337 | static int tps6586x_irq_init(struct tps6586x *tps6586x, int irq, |
c26448c4 GK |
338 | int irq_base) |
339 | { | |
340 | int i, ret; | |
341 | u8 tmp[4]; | |
605511a8 LD |
342 | int new_irq_base; |
343 | int irq_num = ARRAY_SIZE(tps6586x_irqs); | |
c26448c4 | 344 | |
234506ad SW |
345 | tps6586x->irq = irq; |
346 | ||
c26448c4 GK |
347 | mutex_init(&tps6586x->irq_lock); |
348 | for (i = 0; i < 5; i++) { | |
c26448c4 GK |
349 | tps6586x->mask_reg[i] = 0xff; |
350 | tps6586x_write(tps6586x->dev, TPS6586X_INT_MASK1 + i, 0xff); | |
351 | } | |
352 | ||
353 | tps6586x_reads(tps6586x->dev, TPS6586X_INT_ACK1, sizeof(tmp), tmp); | |
354 | ||
605511a8 LD |
355 | if (irq_base > 0) { |
356 | new_irq_base = irq_alloc_descs(irq_base, 0, irq_num, -1); | |
357 | if (new_irq_base < 0) { | |
358 | dev_err(tps6586x->dev, | |
359 | "Failed to alloc IRQs: %d\n", new_irq_base); | |
360 | return new_irq_base; | |
361 | } | |
362 | } else { | |
363 | new_irq_base = 0; | |
c26448c4 GK |
364 | } |
365 | ||
605511a8 LD |
366 | tps6586x->irq_domain = irq_domain_add_simple(tps6586x->dev->of_node, |
367 | irq_num, new_irq_base, &tps6586x_domain_ops, | |
368 | tps6586x); | |
369 | if (!tps6586x->irq_domain) { | |
370 | dev_err(tps6586x->dev, "Failed to create IRQ domain\n"); | |
371 | return -ENOMEM; | |
372 | } | |
c26448c4 GK |
373 | ret = request_threaded_irq(irq, NULL, tps6586x_irq, IRQF_ONESHOT, |
374 | "tps6586x", tps6586x); | |
375 | ||
234506ad | 376 | if (!ret) |
c26448c4 | 377 | device_init_wakeup(tps6586x->dev, 1); |
c26448c4 GK |
378 | |
379 | return ret; | |
380 | } | |
381 | ||
f791be49 | 382 | static int tps6586x_add_subdevs(struct tps6586x *tps6586x, |
c6c19332 MR |
383 | struct tps6586x_platform_data *pdata) |
384 | { | |
385 | struct tps6586x_subdev_info *subdev; | |
386 | struct platform_device *pdev; | |
387 | int i, ret = 0; | |
388 | ||
389 | for (i = 0; i < pdata->num_subdevs; i++) { | |
390 | subdev = &pdata->subdevs[i]; | |
391 | ||
392 | pdev = platform_device_alloc(subdev->name, subdev->id); | |
929980ab AL |
393 | if (!pdev) { |
394 | ret = -ENOMEM; | |
395 | goto failed; | |
396 | } | |
c6c19332 MR |
397 | |
398 | pdev->dev.parent = tps6586x->dev; | |
399 | pdev->dev.platform_data = subdev->platform_data; | |
62f6b087 | 400 | pdev->dev.of_node = subdev->of_node; |
c6c19332 MR |
401 | |
402 | ret = platform_device_add(pdev); | |
929980ab AL |
403 | if (ret) { |
404 | platform_device_put(pdev); | |
c6c19332 | 405 | goto failed; |
929980ab | 406 | } |
c6c19332 MR |
407 | } |
408 | return 0; | |
409 | ||
410 | failed: | |
411 | tps6586x_remove_subdevs(tps6586x); | |
412 | return ret; | |
413 | } | |
414 | ||
62f6b087 | 415 | #ifdef CONFIG_OF |
62f6b087 TR |
416 | static struct tps6586x_platform_data *tps6586x_parse_dt(struct i2c_client *client) |
417 | { | |
62f6b087 TR |
418 | struct device_node *np = client->dev.of_node; |
419 | struct tps6586x_platform_data *pdata; | |
62f6b087 TR |
420 | |
421 | pdata = devm_kzalloc(&client->dev, sizeof(*pdata), GFP_KERNEL); | |
feafdffa | 422 | if (!pdata) |
62f6b087 TR |
423 | return NULL; |
424 | ||
64e48160 LD |
425 | pdata->num_subdevs = 0; |
426 | pdata->subdevs = NULL; | |
62f6b087 TR |
427 | pdata->gpio_base = -1; |
428 | pdata->irq_base = -1; | |
004c15a6 | 429 | pdata->pm_off = of_property_read_bool(np, "ti,system-power-controller"); |
62f6b087 TR |
430 | |
431 | return pdata; | |
432 | } | |
433 | ||
a58cc84c | 434 | static const struct of_device_id tps6586x_of_match[] = { |
62f6b087 TR |
435 | { .compatible = "ti,tps6586x", }, |
436 | { }, | |
437 | }; | |
438 | #else | |
439 | static struct tps6586x_platform_data *tps6586x_parse_dt(struct i2c_client *client) | |
440 | { | |
441 | return NULL; | |
442 | } | |
443 | #endif | |
444 | ||
75edd5af LD |
445 | static bool is_volatile_reg(struct device *dev, unsigned int reg) |
446 | { | |
447 | /* Cache all interrupt mask register */ | |
448 | if ((reg >= TPS6586X_INT_MASK1) && (reg <= TPS6586X_INT_MASK5)) | |
449 | return false; | |
450 | ||
451 | return true; | |
452 | } | |
453 | ||
1176b5be LD |
454 | static const struct regmap_config tps6586x_regmap_config = { |
455 | .reg_bits = 8, | |
456 | .val_bits = 8, | |
088d862c | 457 | .max_register = TPS6586X_MAX_REGISTER, |
75edd5af | 458 | .volatile_reg = is_volatile_reg, |
e142b022 | 459 | .cache_type = REGCACHE_MAPLE, |
1176b5be LD |
460 | }; |
461 | ||
8bd141b1 | 462 | static int tps6586x_power_off_handler(struct sys_off_data *data) |
004c15a6 | 463 | { |
8bd141b1 BB |
464 | int ret; |
465 | ||
466 | /* Put the PMIC into sleep state. This takes at least 20ms. */ | |
467 | ret = tps6586x_clr_bits(data->dev, TPS6586X_SUPPLYENE, EXITSLREQ_BIT); | |
468 | if (ret) | |
469 | return notifier_from_errno(ret); | |
470 | ||
471 | ret = tps6586x_set_bits(data->dev, TPS6586X_SUPPLYENE, SLEEP_MODE_BIT); | |
472 | if (ret) | |
473 | return notifier_from_errno(ret); | |
004c15a6 | 474 | |
8bd141b1 BB |
475 | mdelay(50); |
476 | return notifier_from_errno(-ETIME); | |
004c15a6 BH |
477 | } |
478 | ||
510f276d BB |
479 | static int tps6586x_restart_handler(struct sys_off_data *data) |
480 | { | |
481 | int ret; | |
482 | ||
483 | /* Put the PMIC into hard reboot state. This takes at least 20ms. */ | |
484 | ret = tps6586x_set_bits(data->dev, TPS6586X_SUPPLYENE, SOFT_RST_BIT); | |
485 | if (ret) | |
486 | return notifier_from_errno(ret); | |
487 | ||
488 | mdelay(50); | |
489 | return notifier_from_errno(-ETIME); | |
490 | } | |
491 | ||
e0a3da80 SA |
492 | static void tps6586x_print_version(struct i2c_client *client, int version) |
493 | { | |
494 | const char *name; | |
495 | ||
496 | switch (version) { | |
497 | case TPS658621A: | |
498 | name = "TPS658621A"; | |
499 | break; | |
500 | case TPS658621CD: | |
501 | name = "TPS658621C/D"; | |
502 | break; | |
503 | case TPS658623: | |
504 | name = "TPS658623"; | |
505 | break; | |
6c46ccc8 AB |
506 | case TPS658640: |
507 | case TPS658640v2: | |
508 | name = "TPS658640"; | |
509 | break; | |
e0a3da80 SA |
510 | case TPS658643: |
511 | name = "TPS658643"; | |
512 | break; | |
513 | default: | |
514 | name = "TPS6586X"; | |
515 | break; | |
516 | } | |
517 | ||
518 | dev_info(&client->dev, "Found %s, VERSIONCRC is %02x\n", name, version); | |
519 | } | |
520 | ||
ba801bd5 | 521 | static int tps6586x_i2c_probe(struct i2c_client *client) |
c6c19332 | 522 | { |
334a41ce | 523 | struct tps6586x_platform_data *pdata = dev_get_platdata(&client->dev); |
c6c19332 MR |
524 | struct tps6586x *tps6586x; |
525 | int ret; | |
e0a3da80 | 526 | int version; |
c6c19332 | 527 | |
62f6b087 TR |
528 | if (!pdata && client->dev.of_node) |
529 | pdata = tps6586x_parse_dt(client); | |
530 | ||
c6c19332 MR |
531 | if (!pdata) { |
532 | dev_err(&client->dev, "tps6586x requires platform data\n"); | |
533 | return -ENOTSUPP; | |
534 | } | |
535 | ||
e0a3da80 SA |
536 | version = i2c_smbus_read_byte_data(client, TPS6586X_VERSIONCRC); |
537 | if (version < 0) { | |
538 | dev_err(&client->dev, "Chip ID read failed: %d\n", version); | |
c6c19332 MR |
539 | return -EIO; |
540 | } | |
541 | ||
b6719412 | 542 | tps6586x = devm_kzalloc(&client->dev, sizeof(*tps6586x), GFP_KERNEL); |
e0a3da80 | 543 | if (!tps6586x) |
c6c19332 | 544 | return -ENOMEM; |
e0a3da80 SA |
545 | |
546 | tps6586x->version = version; | |
547 | tps6586x_print_version(client, tps6586x->version); | |
c6c19332 MR |
548 | |
549 | tps6586x->client = client; | |
550 | tps6586x->dev = &client->dev; | |
551 | i2c_set_clientdata(client, tps6586x); | |
552 | ||
1176b5be LD |
553 | tps6586x->regmap = devm_regmap_init_i2c(client, |
554 | &tps6586x_regmap_config); | |
555 | if (IS_ERR(tps6586x->regmap)) { | |
556 | ret = PTR_ERR(tps6586x->regmap); | |
557 | dev_err(&client->dev, "regmap init failed: %d\n", ret); | |
558 | return ret; | |
559 | } | |
560 | ||
c6c19332 | 561 | |
c26448c4 GK |
562 | if (client->irq) { |
563 | ret = tps6586x_irq_init(tps6586x, client->irq, | |
564 | pdata->irq_base); | |
565 | if (ret) { | |
566 | dev_err(&client->dev, "IRQ init failed: %d\n", ret); | |
b6719412 | 567 | return ret; |
c26448c4 GK |
568 | } |
569 | } | |
570 | ||
7a7487cb | 571 | ret = mfd_add_devices(tps6586x->dev, -1, |
0848c94f | 572 | tps6586x_cell, ARRAY_SIZE(tps6586x_cell), |
5b8b1fe2 | 573 | NULL, 0, tps6586x->irq_domain); |
7a7487cb LD |
574 | if (ret < 0) { |
575 | dev_err(&client->dev, "mfd_add_devices failed: %d\n", ret); | |
576 | goto err_mfd_add; | |
6f9f13bf VP |
577 | } |
578 | ||
c6c19332 MR |
579 | ret = tps6586x_add_subdevs(tps6586x, pdata); |
580 | if (ret) { | |
581 | dev_err(&client->dev, "add devices failed: %d\n", ret); | |
582 | goto err_add_devs; | |
583 | } | |
584 | ||
8bd141b1 BB |
585 | if (pdata->pm_off) { |
586 | ret = devm_register_power_off_handler(&client->dev, &tps6586x_power_off_handler, | |
587 | NULL); | |
588 | if (ret) { | |
589 | dev_err(&client->dev, "register power off handler failed: %d\n", ret); | |
590 | goto err_add_devs; | |
591 | } | |
510f276d BB |
592 | |
593 | ret = devm_register_restart_handler(&client->dev, &tps6586x_restart_handler, | |
594 | NULL); | |
595 | if (ret) { | |
596 | dev_err(&client->dev, "register restart handler failed: %d\n", ret); | |
597 | goto err_add_devs; | |
598 | } | |
004c15a6 BH |
599 | } |
600 | ||
c6c19332 MR |
601 | return 0; |
602 | ||
603 | err_add_devs: | |
7a7487cb LD |
604 | mfd_remove_devices(tps6586x->dev); |
605 | err_mfd_add: | |
c26448c4 GK |
606 | if (client->irq) |
607 | free_irq(client->irq, tps6586x); | |
c6c19332 MR |
608 | return ret; |
609 | } | |
610 | ||
ed5c2f5f | 611 | static void tps6586x_i2c_remove(struct i2c_client *client) |
c6c19332 | 612 | { |
4b751cf5 | 613 | struct tps6586x *tps6586x = i2c_get_clientdata(client); |
4b751cf5 | 614 | |
7a7487cb LD |
615 | tps6586x_remove_subdevs(tps6586x); |
616 | mfd_remove_devices(tps6586x->dev); | |
c26448c4 GK |
617 | if (client->irq) |
618 | free_irq(client->irq, tps6586x); | |
c6c19332 MR |
619 | } |
620 | ||
ac4ca4b9 JH |
621 | static int __maybe_unused tps6586x_i2c_suspend(struct device *dev) |
622 | { | |
623 | struct tps6586x *tps6586x = dev_get_drvdata(dev); | |
624 | ||
625 | if (tps6586x->client->irq) | |
626 | disable_irq(tps6586x->client->irq); | |
627 | ||
628 | return 0; | |
629 | } | |
630 | ||
631 | static int __maybe_unused tps6586x_i2c_resume(struct device *dev) | |
632 | { | |
633 | struct tps6586x *tps6586x = dev_get_drvdata(dev); | |
634 | ||
635 | if (tps6586x->client->irq) | |
636 | enable_irq(tps6586x->client->irq); | |
637 | ||
638 | return 0; | |
639 | } | |
640 | ||
641 | static SIMPLE_DEV_PM_OPS(tps6586x_pm_ops, tps6586x_i2c_suspend, | |
642 | tps6586x_i2c_resume); | |
643 | ||
c6c19332 MR |
644 | static const struct i2c_device_id tps6586x_id_table[] = { |
645 | { "tps6586x", 0 }, | |
646 | { }, | |
647 | }; | |
648 | MODULE_DEVICE_TABLE(i2c, tps6586x_id_table); | |
649 | ||
650 | static struct i2c_driver tps6586x_driver = { | |
651 | .driver = { | |
652 | .name = "tps6586x", | |
62f6b087 | 653 | .of_match_table = of_match_ptr(tps6586x_of_match), |
ac4ca4b9 | 654 | .pm = &tps6586x_pm_ops, |
c6c19332 | 655 | }, |
9816d859 | 656 | .probe = tps6586x_i2c_probe, |
84449216 | 657 | .remove = tps6586x_i2c_remove, |
c6c19332 MR |
658 | .id_table = tps6586x_id_table, |
659 | }; | |
660 | ||
661 | static int __init tps6586x_init(void) | |
662 | { | |
663 | return i2c_add_driver(&tps6586x_driver); | |
664 | } | |
665 | subsys_initcall(tps6586x_init); | |
666 | ||
667 | static void __exit tps6586x_exit(void) | |
668 | { | |
669 | i2c_del_driver(&tps6586x_driver); | |
670 | } | |
671 | module_exit(tps6586x_exit); | |
672 | ||
673 | MODULE_DESCRIPTION("TPS6586X core driver"); | |
674 | MODULE_AUTHOR("Mike Rapoport <mike@compulab.co.il>"); |