Commit | Line | Data |
---|---|---|
1213a366 KK |
1 | // SPDX-License-Identifier: GPL-2.0+ |
2 | // | |
3 | // extcon-max77843.c - Maxim MAX77843 extcon driver to support | |
4 | // MUIC(Micro USB Interface Controller) | |
5 | // | |
6 | // Copyright (C) 2015 Samsung Electronics | |
7 | // Author: Jaewon Kim <jaewon02.kim@samsung.com> | |
27a28d32 | 8 | |
176aa360 | 9 | #include <linux/extcon-provider.h> |
27a28d32 JK |
10 | #include <linux/i2c.h> |
11 | #include <linux/interrupt.h> | |
12 | #include <linux/kernel.h> | |
bc1aadc1 | 13 | #include <linux/mfd/max77693-common.h> |
27a28d32 JK |
14 | #include <linux/mfd/max77843-private.h> |
15 | #include <linux/module.h> | |
16 | #include <linux/platform_device.h> | |
17 | #include <linux/workqueue.h> | |
18 | ||
19 | #define DELAY_MS_DEFAULT 15000 /* unit: millisecond */ | |
20 | ||
21 | enum max77843_muic_status { | |
22 | MAX77843_MUIC_STATUS1 = 0, | |
23 | MAX77843_MUIC_STATUS2, | |
24 | MAX77843_MUIC_STATUS3, | |
25 | ||
26 | MAX77843_MUIC_STATUS_NUM, | |
27 | }; | |
28 | ||
29 | struct max77843_muic_info { | |
30 | struct device *dev; | |
bc1aadc1 | 31 | struct max77693_dev *max77843; |
27a28d32 JK |
32 | struct extcon_dev *edev; |
33 | ||
34 | struct mutex mutex; | |
35 | struct work_struct irq_work; | |
36 | struct delayed_work wq_detcable; | |
37 | ||
38 | u8 status[MAX77843_MUIC_STATUS_NUM]; | |
39 | int prev_cable_type; | |
40 | int prev_chg_type; | |
41 | int prev_gnd_type; | |
42 | ||
43 | bool irq_adc; | |
44 | bool irq_chg; | |
45 | }; | |
46 | ||
47 | enum max77843_muic_cable_group { | |
48 | MAX77843_CABLE_GROUP_ADC = 0, | |
49 | MAX77843_CABLE_GROUP_ADC_GND, | |
50 | MAX77843_CABLE_GROUP_CHG, | |
51 | }; | |
52 | ||
53 | enum max77843_muic_adc_debounce_time { | |
54 | MAX77843_DEBOUNCE_TIME_5MS = 0, | |
55 | MAX77843_DEBOUNCE_TIME_10MS, | |
56 | MAX77843_DEBOUNCE_TIME_25MS, | |
57 | MAX77843_DEBOUNCE_TIME_38_62MS, | |
58 | }; | |
59 | ||
60 | /* Define accessory cable type */ | |
61 | enum max77843_muic_accessory_type { | |
62 | MAX77843_MUIC_ADC_GROUND = 0, | |
63 | MAX77843_MUIC_ADC_SEND_END_BUTTON, | |
64 | MAX77843_MUIC_ADC_REMOTE_S1_BUTTON, | |
65 | MAX77843_MUIC_ADC_REMOTE_S2_BUTTON, | |
66 | MAX77843_MUIC_ADC_REMOTE_S3_BUTTON, | |
67 | MAX77843_MUIC_ADC_REMOTE_S4_BUTTON, | |
68 | MAX77843_MUIC_ADC_REMOTE_S5_BUTTON, | |
69 | MAX77843_MUIC_ADC_REMOTE_S6_BUTTON, | |
70 | MAX77843_MUIC_ADC_REMOTE_S7_BUTTON, | |
71 | MAX77843_MUIC_ADC_REMOTE_S8_BUTTON, | |
72 | MAX77843_MUIC_ADC_REMOTE_S9_BUTTON, | |
73 | MAX77843_MUIC_ADC_REMOTE_S10_BUTTON, | |
74 | MAX77843_MUIC_ADC_REMOTE_S11_BUTTON, | |
75 | MAX77843_MUIC_ADC_REMOTE_S12_BUTTON, | |
76 | MAX77843_MUIC_ADC_RESERVED_ACC_1, | |
77 | MAX77843_MUIC_ADC_RESERVED_ACC_2, | |
4a4a8714 | 78 | MAX77843_MUIC_ADC_RESERVED_ACC_3, /* SmartDock */ |
27a28d32 JK |
79 | MAX77843_MUIC_ADC_RESERVED_ACC_4, |
80 | MAX77843_MUIC_ADC_RESERVED_ACC_5, | |
81 | MAX77843_MUIC_ADC_AUDIO_DEVICE_TYPE2, | |
82 | MAX77843_MUIC_ADC_PHONE_POWERED_DEV, | |
83 | MAX77843_MUIC_ADC_TTY_CONVERTER, | |
84 | MAX77843_MUIC_ADC_UART_CABLE, | |
85 | MAX77843_MUIC_ADC_CEA936A_TYPE1_CHG, | |
86 | MAX77843_MUIC_ADC_FACTORY_MODE_USB_OFF, | |
87 | MAX77843_MUIC_ADC_FACTORY_MODE_USB_ON, | |
88 | MAX77843_MUIC_ADC_AV_CABLE_NOLOAD, | |
89 | MAX77843_MUIC_ADC_CEA936A_TYPE2_CHG, | |
90 | MAX77843_MUIC_ADC_FACTORY_MODE_UART_OFF, | |
91 | MAX77843_MUIC_ADC_FACTORY_MODE_UART_ON, | |
92 | MAX77843_MUIC_ADC_AUDIO_DEVICE_TYPE1, | |
93 | MAX77843_MUIC_ADC_OPEN, | |
94 | ||
af57fa4d SR |
95 | /* |
96 | * The below accessories should check | |
97 | * not only ADC value but also ADC1K and VBVolt value. | |
98 | */ | |
27a28d32 JK |
99 | /* Offset|ADC1K|VBVolt| */ |
100 | MAX77843_MUIC_GND_USB_HOST = 0x100, /* 0x1| 0| 0| */ | |
101 | MAX77843_MUIC_GND_USB_HOST_VB = 0x101, /* 0x1| 0| 1| */ | |
102 | MAX77843_MUIC_GND_MHL = 0x102, /* 0x1| 1| 0| */ | |
103 | MAX77843_MUIC_GND_MHL_VB = 0x103, /* 0x1| 1| 1| */ | |
104 | }; | |
105 | ||
106 | /* Define charger cable type */ | |
107 | enum max77843_muic_charger_type { | |
108 | MAX77843_MUIC_CHG_NONE = 0, | |
109 | MAX77843_MUIC_CHG_USB, | |
110 | MAX77843_MUIC_CHG_DOWNSTREAM, | |
111 | MAX77843_MUIC_CHG_DEDICATED, | |
112 | MAX77843_MUIC_CHG_SPECIAL_500MA, | |
113 | MAX77843_MUIC_CHG_SPECIAL_1A, | |
114 | MAX77843_MUIC_CHG_SPECIAL_BIAS, | |
115 | MAX77843_MUIC_CHG_RESERVED, | |
116 | MAX77843_MUIC_CHG_GND, | |
4a4a8714 | 117 | MAX77843_MUIC_CHG_DOCK, |
27a28d32 JK |
118 | }; |
119 | ||
73b6ecdb | 120 | static const unsigned int max77843_extcon_cable[] = { |
2a9de9c0 CC |
121 | EXTCON_USB, |
122 | EXTCON_USB_HOST, | |
8b45b6a0 | 123 | EXTCON_CHG_USB_SDP, |
11eecf91 CC |
124 | EXTCON_CHG_USB_DCP, |
125 | EXTCON_CHG_USB_CDP, | |
126 | EXTCON_CHG_USB_FAST, | |
127 | EXTCON_CHG_USB_SLOW, | |
128 | EXTCON_DISP_MHL, | |
4a4a8714 | 129 | EXTCON_DOCK, |
2a9de9c0 CC |
130 | EXTCON_JIG, |
131 | EXTCON_NONE, | |
27a28d32 JK |
132 | }; |
133 | ||
134 | struct max77843_muic_irq { | |
135 | unsigned int irq; | |
136 | const char *name; | |
137 | unsigned int virq; | |
138 | }; | |
139 | ||
140 | static struct max77843_muic_irq max77843_muic_irqs[] = { | |
141 | { MAX77843_MUIC_IRQ_INT1_ADC, "MUIC-ADC" }, | |
142 | { MAX77843_MUIC_IRQ_INT1_ADCERROR, "MUIC-ADC_ERROR" }, | |
143 | { MAX77843_MUIC_IRQ_INT1_ADC1K, "MUIC-ADC1K" }, | |
144 | { MAX77843_MUIC_IRQ_INT2_CHGTYP, "MUIC-CHGTYP" }, | |
145 | { MAX77843_MUIC_IRQ_INT2_CHGDETRUN, "MUIC-CHGDETRUN" }, | |
146 | { MAX77843_MUIC_IRQ_INT2_DCDTMR, "MUIC-DCDTMR" }, | |
147 | { MAX77843_MUIC_IRQ_INT2_DXOVP, "MUIC-DXOVP" }, | |
148 | { MAX77843_MUIC_IRQ_INT2_VBVOLT, "MUIC-VBVOLT" }, | |
149 | { MAX77843_MUIC_IRQ_INT3_VBADC, "MUIC-VBADC" }, | |
150 | { MAX77843_MUIC_IRQ_INT3_VDNMON, "MUIC-VDNMON" }, | |
151 | { MAX77843_MUIC_IRQ_INT3_DNRES, "MUIC-DNRES" }, | |
152 | { MAX77843_MUIC_IRQ_INT3_MPNACK, "MUIC-MPNACK"}, | |
153 | { MAX77843_MUIC_IRQ_INT3_MRXBUFOW, "MUIC-MRXBUFOW"}, | |
154 | { MAX77843_MUIC_IRQ_INT3_MRXTRF, "MUIC-MRXTRF"}, | |
155 | { MAX77843_MUIC_IRQ_INT3_MRXPERR, "MUIC-MRXPERR"}, | |
156 | { MAX77843_MUIC_IRQ_INT3_MRXRDY, "MUIC-MRXRDY"}, | |
157 | }; | |
158 | ||
159 | static const struct regmap_config max77843_muic_regmap_config = { | |
160 | .reg_bits = 8, | |
161 | .val_bits = 8, | |
162 | .max_register = MAX77843_MUIC_REG_END, | |
163 | }; | |
164 | ||
165 | static const struct regmap_irq max77843_muic_irq[] = { | |
166 | /* INT1 interrupt */ | |
167 | { .reg_offset = 0, .mask = MAX77843_MUIC_ADC, }, | |
168 | { .reg_offset = 0, .mask = MAX77843_MUIC_ADCERROR, }, | |
169 | { .reg_offset = 0, .mask = MAX77843_MUIC_ADC1K, }, | |
170 | ||
171 | /* INT2 interrupt */ | |
172 | { .reg_offset = 1, .mask = MAX77843_MUIC_CHGTYP, }, | |
173 | { .reg_offset = 1, .mask = MAX77843_MUIC_CHGDETRUN, }, | |
174 | { .reg_offset = 1, .mask = MAX77843_MUIC_DCDTMR, }, | |
175 | { .reg_offset = 1, .mask = MAX77843_MUIC_DXOVP, }, | |
176 | { .reg_offset = 1, .mask = MAX77843_MUIC_VBVOLT, }, | |
177 | ||
178 | /* INT3 interrupt */ | |
179 | { .reg_offset = 2, .mask = MAX77843_MUIC_VBADC, }, | |
180 | { .reg_offset = 2, .mask = MAX77843_MUIC_VDNMON, }, | |
181 | { .reg_offset = 2, .mask = MAX77843_MUIC_DNRES, }, | |
182 | { .reg_offset = 2, .mask = MAX77843_MUIC_MPNACK, }, | |
183 | { .reg_offset = 2, .mask = MAX77843_MUIC_MRXBUFOW, }, | |
184 | { .reg_offset = 2, .mask = MAX77843_MUIC_MRXTRF, }, | |
185 | { .reg_offset = 2, .mask = MAX77843_MUIC_MRXPERR, }, | |
186 | { .reg_offset = 2, .mask = MAX77843_MUIC_MRXRDY, }, | |
187 | }; | |
188 | ||
189 | static const struct regmap_irq_chip max77843_muic_irq_chip = { | |
190 | .name = "max77843-muic", | |
191 | .status_base = MAX77843_MUIC_REG_INT1, | |
192 | .mask_base = MAX77843_MUIC_REG_INTMASK1, | |
193 | .mask_invert = true, | |
194 | .num_regs = 3, | |
195 | .irqs = max77843_muic_irq, | |
196 | .num_irqs = ARRAY_SIZE(max77843_muic_irq), | |
197 | }; | |
198 | ||
199 | static int max77843_muic_set_path(struct max77843_muic_info *info, | |
4a4a8714 | 200 | u8 val, bool attached, bool nobccomp) |
27a28d32 | 201 | { |
bc1aadc1 | 202 | struct max77693_dev *max77843 = info->max77843; |
27a28d32 JK |
203 | int ret = 0; |
204 | unsigned int ctrl1, ctrl2; | |
205 | ||
206 | if (attached) | |
207 | ctrl1 = val; | |
208 | else | |
309a3e00 | 209 | ctrl1 = MAX77843_MUIC_CONTROL1_SW_OPEN; |
4a4a8714 MS |
210 | if (nobccomp) { |
211 | /* Disable BC1.2 protocol and force manual switch control */ | |
212 | ctrl1 |= MAX77843_MUIC_CONTROL1_NOBCCOMP_MASK; | |
213 | } | |
27a28d32 JK |
214 | |
215 | ret = regmap_update_bits(max77843->regmap_muic, | |
216 | MAX77843_MUIC_REG_CONTROL1, | |
4a4a8714 MS |
217 | MAX77843_MUIC_CONTROL1_COM_SW | |
218 | MAX77843_MUIC_CONTROL1_NOBCCOMP_MASK, | |
219 | ctrl1); | |
27a28d32 JK |
220 | if (ret < 0) { |
221 | dev_err(info->dev, "Cannot switch MUIC port\n"); | |
222 | return ret; | |
223 | } | |
224 | ||
225 | if (attached) | |
226 | ctrl2 = MAX77843_MUIC_CONTROL2_CPEN_MASK; | |
227 | else | |
228 | ctrl2 = MAX77843_MUIC_CONTROL2_LOWPWR_MASK; | |
229 | ||
230 | ret = regmap_update_bits(max77843->regmap_muic, | |
231 | MAX77843_MUIC_REG_CONTROL2, | |
232 | MAX77843_MUIC_CONTROL2_LOWPWR_MASK | | |
233 | MAX77843_MUIC_CONTROL2_CPEN_MASK, ctrl2); | |
234 | if (ret < 0) { | |
235 | dev_err(info->dev, "Cannot update lowpower mode\n"); | |
236 | return ret; | |
237 | } | |
238 | ||
239 | dev_dbg(info->dev, | |
240 | "CONTROL1 : 0x%02x, CONTROL2 : 0x%02x, state : %s\n", | |
241 | ctrl1, ctrl2, attached ? "attached" : "detached"); | |
242 | ||
243 | return 0; | |
244 | } | |
245 | ||
7b965110 MS |
246 | static void max77843_charger_set_otg_vbus(struct max77843_muic_info *info, |
247 | bool on) | |
248 | { | |
249 | struct max77693_dev *max77843 = info->max77843; | |
250 | unsigned int cnfg00; | |
251 | ||
252 | if (on) | |
253 | cnfg00 = MAX77843_CHG_OTG_MASK | MAX77843_CHG_BOOST_MASK; | |
254 | else | |
255 | cnfg00 = MAX77843_CHG_ENABLE | MAX77843_CHG_BUCK_MASK; | |
256 | ||
257 | regmap_update_bits(max77843->regmap_chg, MAX77843_CHG_REG_CHG_CNFG_00, | |
258 | MAX77843_CHG_MODE_MASK, cnfg00); | |
259 | } | |
260 | ||
27a28d32 JK |
261 | static int max77843_muic_get_cable_type(struct max77843_muic_info *info, |
262 | enum max77843_muic_cable_group group, bool *attached) | |
263 | { | |
264 | int adc, chg_type, cable_type, gnd_type; | |
265 | ||
266 | adc = info->status[MAX77843_MUIC_STATUS1] & | |
267 | MAX77843_MUIC_STATUS1_ADC_MASK; | |
309a3e00 | 268 | adc >>= MAX77843_MUIC_STATUS1_ADC_SHIFT; |
27a28d32 JK |
269 | |
270 | switch (group) { | |
271 | case MAX77843_CABLE_GROUP_ADC: | |
272 | if (adc == MAX77843_MUIC_ADC_OPEN) { | |
273 | *attached = false; | |
274 | cable_type = info->prev_cable_type; | |
275 | info->prev_cable_type = MAX77843_MUIC_ADC_OPEN; | |
276 | } else { | |
277 | *attached = true; | |
278 | cable_type = info->prev_cable_type = adc; | |
279 | } | |
280 | break; | |
281 | case MAX77843_CABLE_GROUP_CHG: | |
282 | chg_type = info->status[MAX77843_MUIC_STATUS2] & | |
283 | MAX77843_MUIC_STATUS2_CHGTYP_MASK; | |
284 | ||
285 | /* Check GROUND accessory with charger cable */ | |
286 | if (adc == MAX77843_MUIC_ADC_GROUND) { | |
287 | if (chg_type == MAX77843_MUIC_CHG_NONE) { | |
af57fa4d SR |
288 | /* |
289 | * The following state when charger cable is | |
27a28d32 | 290 | * disconnected but the GROUND accessory still |
af57fa4d SR |
291 | * connected. |
292 | */ | |
27a28d32 JK |
293 | *attached = false; |
294 | cable_type = info->prev_chg_type; | |
295 | info->prev_chg_type = MAX77843_MUIC_CHG_NONE; | |
296 | } else { | |
297 | ||
af57fa4d SR |
298 | /* |
299 | * The following state when charger cable is | |
300 | * connected on the GROUND accessory. | |
301 | */ | |
27a28d32 JK |
302 | *attached = true; |
303 | cable_type = MAX77843_MUIC_CHG_GND; | |
304 | info->prev_chg_type = MAX77843_MUIC_CHG_GND; | |
305 | } | |
306 | break; | |
307 | } | |
308 | ||
4a4a8714 MS |
309 | if (adc == MAX77843_MUIC_ADC_RESERVED_ACC_3) { /* SmartDock */ |
310 | if (chg_type == MAX77843_MUIC_CHG_NONE) { | |
311 | *attached = false; | |
312 | cable_type = info->prev_chg_type; | |
313 | info->prev_chg_type = MAX77843_MUIC_CHG_NONE; | |
314 | } else { | |
315 | *attached = true; | |
316 | cable_type = MAX77843_MUIC_CHG_DOCK; | |
317 | info->prev_chg_type = MAX77843_MUIC_CHG_DOCK; | |
318 | } | |
319 | break; | |
320 | } | |
321 | ||
27a28d32 JK |
322 | if (chg_type == MAX77843_MUIC_CHG_NONE) { |
323 | *attached = false; | |
324 | cable_type = info->prev_chg_type; | |
325 | info->prev_chg_type = MAX77843_MUIC_CHG_NONE; | |
326 | } else { | |
327 | *attached = true; | |
328 | cable_type = info->prev_chg_type = chg_type; | |
329 | } | |
330 | break; | |
331 | case MAX77843_CABLE_GROUP_ADC_GND: | |
332 | if (adc == MAX77843_MUIC_ADC_OPEN) { | |
333 | *attached = false; | |
334 | cable_type = info->prev_gnd_type; | |
335 | info->prev_gnd_type = MAX77843_MUIC_ADC_OPEN; | |
336 | } else { | |
337 | *attached = true; | |
338 | ||
af57fa4d SR |
339 | /* |
340 | * Offset|ADC1K|VBVolt| | |
27a28d32 JK |
341 | * 0x1| 0| 0| USB-HOST |
342 | * 0x1| 0| 1| USB-HOST with VB | |
343 | * 0x1| 1| 0| MHL | |
af57fa4d SR |
344 | * 0x1| 1| 1| MHL with VB |
345 | */ | |
27a28d32 JK |
346 | /* Get ADC1K register bit */ |
347 | gnd_type = (info->status[MAX77843_MUIC_STATUS1] & | |
348 | MAX77843_MUIC_STATUS1_ADC1K_MASK); | |
349 | ||
350 | /* Get VBVolt register bit */ | |
351 | gnd_type |= (info->status[MAX77843_MUIC_STATUS2] & | |
352 | MAX77843_MUIC_STATUS2_VBVOLT_MASK); | |
309a3e00 | 353 | gnd_type >>= MAX77843_MUIC_STATUS2_VBVOLT_SHIFT; |
27a28d32 JK |
354 | |
355 | /* Offset of GND cable */ | |
356 | gnd_type |= MAX77843_MUIC_GND_USB_HOST; | |
357 | cable_type = info->prev_gnd_type = gnd_type; | |
358 | } | |
359 | break; | |
360 | default: | |
361 | dev_err(info->dev, "Unknown cable group (%d)\n", group); | |
362 | cable_type = -EINVAL; | |
363 | break; | |
364 | } | |
365 | ||
366 | return cable_type; | |
367 | } | |
368 | ||
369 | static int max77843_muic_adc_gnd_handler(struct max77843_muic_info *info) | |
370 | { | |
371 | int ret, gnd_cable_type; | |
372 | bool attached; | |
373 | ||
374 | gnd_cable_type = max77843_muic_get_cable_type(info, | |
375 | MAX77843_CABLE_GROUP_ADC_GND, &attached); | |
376 | dev_dbg(info->dev, "external connector is %s (gnd:0x%02x)\n", | |
377 | attached ? "attached" : "detached", gnd_cable_type); | |
378 | ||
379 | switch (gnd_cable_type) { | |
380 | case MAX77843_MUIC_GND_USB_HOST: | |
381 | case MAX77843_MUIC_GND_USB_HOST_VB: | |
309a3e00 KK |
382 | ret = max77843_muic_set_path(info, |
383 | MAX77843_MUIC_CONTROL1_SW_USB, | |
4a4a8714 | 384 | attached, false); |
27a28d32 JK |
385 | if (ret < 0) |
386 | return ret; | |
387 | ||
8670b459 | 388 | extcon_set_state_sync(info->edev, EXTCON_USB_HOST, attached); |
7b965110 | 389 | max77843_charger_set_otg_vbus(info, attached); |
27a28d32 JK |
390 | break; |
391 | case MAX77843_MUIC_GND_MHL_VB: | |
392 | case MAX77843_MUIC_GND_MHL: | |
309a3e00 KK |
393 | ret = max77843_muic_set_path(info, |
394 | MAX77843_MUIC_CONTROL1_SW_OPEN, | |
4a4a8714 | 395 | attached, false); |
27a28d32 JK |
396 | if (ret < 0) |
397 | return ret; | |
398 | ||
8670b459 | 399 | extcon_set_state_sync(info->edev, EXTCON_DISP_MHL, attached); |
27a28d32 JK |
400 | break; |
401 | default: | |
402 | dev_err(info->dev, "failed to detect %s accessory(gnd:0x%x)\n", | |
403 | attached ? "attached" : "detached", gnd_cable_type); | |
404 | return -EINVAL; | |
405 | } | |
406 | ||
407 | return 0; | |
408 | } | |
409 | ||
410 | static int max77843_muic_jig_handler(struct max77843_muic_info *info, | |
411 | int cable_type, bool attached) | |
412 | { | |
413 | int ret; | |
309a3e00 | 414 | u8 path = MAX77843_MUIC_CONTROL1_SW_OPEN; |
27a28d32 JK |
415 | |
416 | dev_dbg(info->dev, "external connector is %s (adc:0x%02x)\n", | |
417 | attached ? "attached" : "detached", cable_type); | |
418 | ||
419 | switch (cable_type) { | |
420 | case MAX77843_MUIC_ADC_FACTORY_MODE_USB_OFF: | |
27a28d32 | 421 | case MAX77843_MUIC_ADC_FACTORY_MODE_USB_ON: |
309a3e00 | 422 | path = MAX77843_MUIC_CONTROL1_SW_USB; |
27a28d32 JK |
423 | break; |
424 | case MAX77843_MUIC_ADC_FACTORY_MODE_UART_OFF: | |
309a3e00 | 425 | path = MAX77843_MUIC_CONTROL1_SW_UART; |
27a28d32 JK |
426 | break; |
427 | default: | |
41b3c015 | 428 | return -EINVAL; |
27a28d32 JK |
429 | } |
430 | ||
4a4a8714 | 431 | ret = max77843_muic_set_path(info, path, attached, false); |
41b3c015 CC |
432 | if (ret < 0) |
433 | return ret; | |
434 | ||
8670b459 | 435 | extcon_set_state_sync(info->edev, EXTCON_JIG, attached); |
41b3c015 | 436 | |
27a28d32 JK |
437 | return 0; |
438 | } | |
439 | ||
4a4a8714 MS |
440 | static int max77843_muic_dock_handler(struct max77843_muic_info *info, |
441 | bool attached) | |
442 | { | |
443 | int ret; | |
444 | ||
445 | dev_dbg(info->dev, "external connector is %s (adc: 0x10)\n", | |
446 | attached ? "attached" : "detached"); | |
447 | ||
448 | ret = max77843_muic_set_path(info, MAX77843_MUIC_CONTROL1_SW_USB, | |
449 | attached, attached); | |
450 | if (ret < 0) | |
451 | return ret; | |
452 | ||
453 | extcon_set_state_sync(info->edev, EXTCON_DISP_MHL, attached); | |
454 | extcon_set_state_sync(info->edev, EXTCON_USB_HOST, attached); | |
455 | extcon_set_state_sync(info->edev, EXTCON_DOCK, attached); | |
456 | ||
457 | return 0; | |
458 | } | |
459 | ||
27a28d32 JK |
460 | static int max77843_muic_adc_handler(struct max77843_muic_info *info) |
461 | { | |
462 | int ret, cable_type; | |
463 | bool attached; | |
464 | ||
465 | cable_type = max77843_muic_get_cable_type(info, | |
466 | MAX77843_CABLE_GROUP_ADC, &attached); | |
467 | ||
468 | dev_dbg(info->dev, | |
469 | "external connector is %s (adc:0x%02x, prev_adc:0x%x)\n", | |
470 | attached ? "attached" : "detached", cable_type, | |
471 | info->prev_cable_type); | |
472 | ||
473 | switch (cable_type) { | |
4a4a8714 MS |
474 | case MAX77843_MUIC_ADC_RESERVED_ACC_3: /* SmartDock */ |
475 | ret = max77843_muic_dock_handler(info, attached); | |
476 | if (ret < 0) | |
477 | return ret; | |
478 | break; | |
27a28d32 JK |
479 | case MAX77843_MUIC_ADC_GROUND: |
480 | ret = max77843_muic_adc_gnd_handler(info); | |
481 | if (ret < 0) | |
482 | return ret; | |
483 | break; | |
484 | case MAX77843_MUIC_ADC_FACTORY_MODE_USB_OFF: | |
485 | case MAX77843_MUIC_ADC_FACTORY_MODE_USB_ON: | |
486 | case MAX77843_MUIC_ADC_FACTORY_MODE_UART_OFF: | |
487 | ret = max77843_muic_jig_handler(info, cable_type, attached); | |
488 | if (ret < 0) | |
489 | return ret; | |
490 | break; | |
491 | case MAX77843_MUIC_ADC_SEND_END_BUTTON: | |
492 | case MAX77843_MUIC_ADC_REMOTE_S1_BUTTON: | |
493 | case MAX77843_MUIC_ADC_REMOTE_S2_BUTTON: | |
494 | case MAX77843_MUIC_ADC_REMOTE_S3_BUTTON: | |
495 | case MAX77843_MUIC_ADC_REMOTE_S4_BUTTON: | |
496 | case MAX77843_MUIC_ADC_REMOTE_S5_BUTTON: | |
497 | case MAX77843_MUIC_ADC_REMOTE_S6_BUTTON: | |
498 | case MAX77843_MUIC_ADC_REMOTE_S7_BUTTON: | |
499 | case MAX77843_MUIC_ADC_REMOTE_S8_BUTTON: | |
500 | case MAX77843_MUIC_ADC_REMOTE_S9_BUTTON: | |
501 | case MAX77843_MUIC_ADC_REMOTE_S10_BUTTON: | |
502 | case MAX77843_MUIC_ADC_REMOTE_S11_BUTTON: | |
503 | case MAX77843_MUIC_ADC_REMOTE_S12_BUTTON: | |
504 | case MAX77843_MUIC_ADC_RESERVED_ACC_1: | |
505 | case MAX77843_MUIC_ADC_RESERVED_ACC_2: | |
27a28d32 JK |
506 | case MAX77843_MUIC_ADC_RESERVED_ACC_4: |
507 | case MAX77843_MUIC_ADC_RESERVED_ACC_5: | |
508 | case MAX77843_MUIC_ADC_AUDIO_DEVICE_TYPE2: | |
509 | case MAX77843_MUIC_ADC_PHONE_POWERED_DEV: | |
510 | case MAX77843_MUIC_ADC_TTY_CONVERTER: | |
511 | case MAX77843_MUIC_ADC_UART_CABLE: | |
512 | case MAX77843_MUIC_ADC_CEA936A_TYPE1_CHG: | |
513 | case MAX77843_MUIC_ADC_AV_CABLE_NOLOAD: | |
514 | case MAX77843_MUIC_ADC_CEA936A_TYPE2_CHG: | |
515 | case MAX77843_MUIC_ADC_FACTORY_MODE_UART_ON: | |
516 | case MAX77843_MUIC_ADC_AUDIO_DEVICE_TYPE1: | |
517 | case MAX77843_MUIC_ADC_OPEN: | |
518 | dev_err(info->dev, | |
519 | "accessory is %s but it isn't used (adc:0x%x)\n", | |
520 | attached ? "attached" : "detached", cable_type); | |
521 | return -EAGAIN; | |
522 | default: | |
523 | dev_err(info->dev, | |
524 | "failed to detect %s accessory (adc:0x%x)\n", | |
525 | attached ? "attached" : "detached", cable_type); | |
526 | return -EINVAL; | |
527 | } | |
528 | ||
529 | return 0; | |
530 | } | |
531 | ||
532 | static int max77843_muic_chg_handler(struct max77843_muic_info *info) | |
533 | { | |
534 | int ret, chg_type, gnd_type; | |
535 | bool attached; | |
536 | ||
537 | chg_type = max77843_muic_get_cable_type(info, | |
538 | MAX77843_CABLE_GROUP_CHG, &attached); | |
539 | ||
540 | dev_dbg(info->dev, | |
541 | "external connector is %s(chg_type:0x%x, prev_chg_type:0x%x)\n", | |
542 | attached ? "attached" : "detached", | |
543 | chg_type, info->prev_chg_type); | |
544 | ||
545 | switch (chg_type) { | |
546 | case MAX77843_MUIC_CHG_USB: | |
309a3e00 KK |
547 | ret = max77843_muic_set_path(info, |
548 | MAX77843_MUIC_CONTROL1_SW_USB, | |
4a4a8714 | 549 | attached, false); |
27a28d32 JK |
550 | if (ret < 0) |
551 | return ret; | |
552 | ||
8670b459 CC |
553 | extcon_set_state_sync(info->edev, EXTCON_USB, attached); |
554 | extcon_set_state_sync(info->edev, EXTCON_CHG_USB_SDP, | |
8b45b6a0 | 555 | attached); |
27a28d32 JK |
556 | break; |
557 | case MAX77843_MUIC_CHG_DOWNSTREAM: | |
309a3e00 KK |
558 | ret = max77843_muic_set_path(info, |
559 | MAX77843_MUIC_CONTROL1_SW_OPEN, | |
4a4a8714 | 560 | attached, false); |
27a28d32 JK |
561 | if (ret < 0) |
562 | return ret; | |
563 | ||
8670b459 | 564 | extcon_set_state_sync(info->edev, EXTCON_CHG_USB_CDP, |
2a9de9c0 | 565 | attached); |
27a28d32 JK |
566 | break; |
567 | case MAX77843_MUIC_CHG_DEDICATED: | |
309a3e00 KK |
568 | ret = max77843_muic_set_path(info, |
569 | MAX77843_MUIC_CONTROL1_SW_OPEN, | |
4a4a8714 | 570 | attached, false); |
27a28d32 JK |
571 | if (ret < 0) |
572 | return ret; | |
573 | ||
8670b459 | 574 | extcon_set_state_sync(info->edev, EXTCON_CHG_USB_DCP, |
11eecf91 | 575 | attached); |
27a28d32 JK |
576 | break; |
577 | case MAX77843_MUIC_CHG_SPECIAL_500MA: | |
309a3e00 KK |
578 | ret = max77843_muic_set_path(info, |
579 | MAX77843_MUIC_CONTROL1_SW_OPEN, | |
4a4a8714 | 580 | attached, false); |
27a28d32 JK |
581 | if (ret < 0) |
582 | return ret; | |
583 | ||
8670b459 | 584 | extcon_set_state_sync(info->edev, EXTCON_CHG_USB_SLOW, |
2a9de9c0 | 585 | attached); |
27a28d32 JK |
586 | break; |
587 | case MAX77843_MUIC_CHG_SPECIAL_1A: | |
309a3e00 KK |
588 | ret = max77843_muic_set_path(info, |
589 | MAX77843_MUIC_CONTROL1_SW_OPEN, | |
4a4a8714 | 590 | attached, false); |
27a28d32 JK |
591 | if (ret < 0) |
592 | return ret; | |
593 | ||
8670b459 | 594 | extcon_set_state_sync(info->edev, EXTCON_CHG_USB_FAST, |
2a9de9c0 | 595 | attached); |
27a28d32 JK |
596 | break; |
597 | case MAX77843_MUIC_CHG_GND: | |
598 | gnd_type = max77843_muic_get_cable_type(info, | |
599 | MAX77843_CABLE_GROUP_ADC_GND, &attached); | |
600 | ||
601 | /* Charger cable on MHL accessory is attach or detach */ | |
602 | if (gnd_type == MAX77843_MUIC_GND_MHL_VB) | |
8670b459 | 603 | extcon_set_state_sync(info->edev, EXTCON_CHG_USB_DCP, |
11eecf91 | 604 | true); |
27a28d32 | 605 | else if (gnd_type == MAX77843_MUIC_GND_MHL) |
8670b459 | 606 | extcon_set_state_sync(info->edev, EXTCON_CHG_USB_DCP, |
11eecf91 | 607 | false); |
27a28d32 | 608 | break; |
4a4a8714 MS |
609 | case MAX77843_MUIC_CHG_DOCK: |
610 | extcon_set_state_sync(info->edev, EXTCON_CHG_USB_DCP, attached); | |
611 | break; | |
27a28d32 JK |
612 | case MAX77843_MUIC_CHG_NONE: |
613 | break; | |
614 | default: | |
615 | dev_err(info->dev, | |
616 | "failed to detect %s accessory (chg_type:0x%x)\n", | |
617 | attached ? "attached" : "detached", chg_type); | |
618 | ||
309a3e00 | 619 | max77843_muic_set_path(info, MAX77843_MUIC_CONTROL1_SW_OPEN, |
4a4a8714 | 620 | attached, false); |
27a28d32 JK |
621 | return -EINVAL; |
622 | } | |
623 | ||
624 | return 0; | |
625 | } | |
626 | ||
627 | static void max77843_muic_irq_work(struct work_struct *work) | |
628 | { | |
629 | struct max77843_muic_info *info = container_of(work, | |
630 | struct max77843_muic_info, irq_work); | |
bc1aadc1 | 631 | struct max77693_dev *max77843 = info->max77843; |
27a28d32 JK |
632 | int ret = 0; |
633 | ||
634 | mutex_lock(&info->mutex); | |
635 | ||
636 | ret = regmap_bulk_read(max77843->regmap_muic, | |
637 | MAX77843_MUIC_REG_STATUS1, info->status, | |
638 | MAX77843_MUIC_STATUS_NUM); | |
639 | if (ret) { | |
640 | dev_err(info->dev, "Cannot read STATUS registers\n"); | |
641 | mutex_unlock(&info->mutex); | |
642 | return; | |
643 | } | |
644 | ||
645 | if (info->irq_adc) { | |
646 | ret = max77843_muic_adc_handler(info); | |
647 | if (ret) | |
648 | dev_err(info->dev, "Unknown cable type\n"); | |
649 | info->irq_adc = false; | |
650 | } | |
651 | ||
652 | if (info->irq_chg) { | |
653 | ret = max77843_muic_chg_handler(info); | |
654 | if (ret) | |
655 | dev_err(info->dev, "Unknown charger type\n"); | |
656 | info->irq_chg = false; | |
657 | } | |
658 | ||
659 | mutex_unlock(&info->mutex); | |
660 | } | |
661 | ||
662 | static irqreturn_t max77843_muic_irq_handler(int irq, void *data) | |
663 | { | |
664 | struct max77843_muic_info *info = data; | |
665 | int i, irq_type = -1; | |
666 | ||
667 | for (i = 0; i < ARRAY_SIZE(max77843_muic_irqs); i++) | |
668 | if (irq == max77843_muic_irqs[i].virq) | |
669 | irq_type = max77843_muic_irqs[i].irq; | |
670 | ||
671 | switch (irq_type) { | |
672 | case MAX77843_MUIC_IRQ_INT1_ADC: | |
673 | case MAX77843_MUIC_IRQ_INT1_ADCERROR: | |
674 | case MAX77843_MUIC_IRQ_INT1_ADC1K: | |
675 | info->irq_adc = true; | |
676 | break; | |
677 | case MAX77843_MUIC_IRQ_INT2_CHGTYP: | |
678 | case MAX77843_MUIC_IRQ_INT2_CHGDETRUN: | |
679 | case MAX77843_MUIC_IRQ_INT2_DCDTMR: | |
680 | case MAX77843_MUIC_IRQ_INT2_DXOVP: | |
681 | case MAX77843_MUIC_IRQ_INT2_VBVOLT: | |
682 | info->irq_chg = true; | |
683 | break; | |
684 | case MAX77843_MUIC_IRQ_INT3_VBADC: | |
685 | case MAX77843_MUIC_IRQ_INT3_VDNMON: | |
686 | case MAX77843_MUIC_IRQ_INT3_DNRES: | |
687 | case MAX77843_MUIC_IRQ_INT3_MPNACK: | |
688 | case MAX77843_MUIC_IRQ_INT3_MRXBUFOW: | |
689 | case MAX77843_MUIC_IRQ_INT3_MRXTRF: | |
690 | case MAX77843_MUIC_IRQ_INT3_MRXPERR: | |
691 | case MAX77843_MUIC_IRQ_INT3_MRXRDY: | |
692 | break; | |
693 | default: | |
694 | dev_err(info->dev, "Cannot recognize IRQ(%d)\n", irq_type); | |
695 | break; | |
696 | } | |
697 | ||
698 | schedule_work(&info->irq_work); | |
699 | ||
700 | return IRQ_HANDLED; | |
701 | } | |
702 | ||
703 | static void max77843_muic_detect_cable_wq(struct work_struct *work) | |
704 | { | |
705 | struct max77843_muic_info *info = container_of(to_delayed_work(work), | |
706 | struct max77843_muic_info, wq_detcable); | |
bc1aadc1 | 707 | struct max77693_dev *max77843 = info->max77843; |
27a28d32 JK |
708 | int chg_type, adc, ret; |
709 | bool attached; | |
710 | ||
711 | mutex_lock(&info->mutex); | |
712 | ||
713 | ret = regmap_bulk_read(max77843->regmap_muic, | |
714 | MAX77843_MUIC_REG_STATUS1, info->status, | |
715 | MAX77843_MUIC_STATUS_NUM); | |
716 | if (ret) { | |
717 | dev_err(info->dev, "Cannot read STATUS registers\n"); | |
718 | goto err_cable_wq; | |
719 | } | |
720 | ||
721 | adc = max77843_muic_get_cable_type(info, | |
722 | MAX77843_CABLE_GROUP_ADC, &attached); | |
723 | if (attached && adc != MAX77843_MUIC_ADC_OPEN) { | |
724 | ret = max77843_muic_adc_handler(info); | |
725 | if (ret < 0) { | |
726 | dev_err(info->dev, "Cannot detect accessory\n"); | |
727 | goto err_cable_wq; | |
728 | } | |
729 | } | |
730 | ||
731 | chg_type = max77843_muic_get_cable_type(info, | |
732 | MAX77843_CABLE_GROUP_CHG, &attached); | |
733 | if (attached && chg_type != MAX77843_MUIC_CHG_NONE) { | |
734 | ret = max77843_muic_chg_handler(info); | |
735 | if (ret < 0) { | |
736 | dev_err(info->dev, "Cannot detect charger accessory\n"); | |
737 | goto err_cable_wq; | |
738 | } | |
739 | } | |
740 | ||
741 | err_cable_wq: | |
742 | mutex_unlock(&info->mutex); | |
743 | } | |
744 | ||
745 | static int max77843_muic_set_debounce_time(struct max77843_muic_info *info, | |
746 | enum max77843_muic_adc_debounce_time time) | |
747 | { | |
bc1aadc1 | 748 | struct max77693_dev *max77843 = info->max77843; |
d927c590 | 749 | int ret; |
27a28d32 JK |
750 | |
751 | switch (time) { | |
752 | case MAX77843_DEBOUNCE_TIME_5MS: | |
753 | case MAX77843_DEBOUNCE_TIME_10MS: | |
754 | case MAX77843_DEBOUNCE_TIME_25MS: | |
755 | case MAX77843_DEBOUNCE_TIME_38_62MS: | |
756 | ret = regmap_update_bits(max77843->regmap_muic, | |
757 | MAX77843_MUIC_REG_CONTROL4, | |
758 | MAX77843_MUIC_CONTROL4_ADCDBSET_MASK, | |
309a3e00 | 759 | time << MAX77843_MUIC_CONTROL4_ADCDBSET_SHIFT); |
27a28d32 JK |
760 | if (ret < 0) { |
761 | dev_err(info->dev, "Cannot write MUIC regmap\n"); | |
762 | return ret; | |
763 | } | |
764 | break; | |
765 | default: | |
766 | dev_err(info->dev, "Invalid ADC debounce time\n"); | |
767 | return -EINVAL; | |
768 | } | |
769 | ||
770 | return 0; | |
771 | } | |
772 | ||
bc1aadc1 | 773 | static int max77843_init_muic_regmap(struct max77693_dev *max77843) |
27a28d32 JK |
774 | { |
775 | int ret; | |
776 | ||
777 | max77843->i2c_muic = i2c_new_dummy(max77843->i2c->adapter, | |
778 | I2C_ADDR_MUIC); | |
779 | if (!max77843->i2c_muic) { | |
780 | dev_err(&max77843->i2c->dev, | |
781 | "Cannot allocate I2C device for MUIC\n"); | |
b9b518f5 | 782 | return -ENOMEM; |
27a28d32 JK |
783 | } |
784 | ||
785 | i2c_set_clientdata(max77843->i2c_muic, max77843); | |
786 | ||
787 | max77843->regmap_muic = devm_regmap_init_i2c(max77843->i2c_muic, | |
788 | &max77843_muic_regmap_config); | |
789 | if (IS_ERR(max77843->regmap_muic)) { | |
790 | ret = PTR_ERR(max77843->regmap_muic); | |
791 | goto err_muic_i2c; | |
792 | } | |
793 | ||
794 | ret = regmap_add_irq_chip(max77843->regmap_muic, max77843->irq, | |
795 | IRQF_TRIGGER_LOW | IRQF_ONESHOT | IRQF_SHARED, | |
796 | 0, &max77843_muic_irq_chip, &max77843->irq_data_muic); | |
797 | if (ret < 0) { | |
798 | dev_err(&max77843->i2c->dev, "Cannot add MUIC IRQ chip\n"); | |
799 | goto err_muic_i2c; | |
800 | } | |
801 | ||
802 | return 0; | |
803 | ||
804 | err_muic_i2c: | |
805 | i2c_unregister_device(max77843->i2c_muic); | |
806 | ||
807 | return ret; | |
808 | } | |
809 | ||
810 | static int max77843_muic_probe(struct platform_device *pdev) | |
811 | { | |
bc1aadc1 | 812 | struct max77693_dev *max77843 = dev_get_drvdata(pdev->dev.parent); |
27a28d32 JK |
813 | struct max77843_muic_info *info; |
814 | unsigned int id; | |
815 | int i, ret; | |
816 | ||
817 | info = devm_kzalloc(&pdev->dev, sizeof(*info), GFP_KERNEL); | |
818 | if (!info) | |
819 | return -ENOMEM; | |
820 | ||
821 | info->dev = &pdev->dev; | |
822 | info->max77843 = max77843; | |
823 | ||
824 | platform_set_drvdata(pdev, info); | |
825 | mutex_init(&info->mutex); | |
826 | ||
827 | /* Initialize i2c and regmap */ | |
828 | ret = max77843_init_muic_regmap(max77843); | |
829 | if (ret) { | |
830 | dev_err(&pdev->dev, "Failed to init MUIC regmap\n"); | |
831 | return ret; | |
832 | } | |
833 | ||
834 | /* Turn off auto detection configuration */ | |
835 | ret = regmap_update_bits(max77843->regmap_muic, | |
836 | MAX77843_MUIC_REG_CONTROL4, | |
837 | MAX77843_MUIC_CONTROL4_USBAUTO_MASK | | |
838 | MAX77843_MUIC_CONTROL4_FCTAUTO_MASK, | |
839 | CONTROL4_AUTO_DISABLE); | |
840 | ||
841 | /* Initialize extcon device */ | |
842 | info->edev = devm_extcon_dev_allocate(&pdev->dev, | |
843 | max77843_extcon_cable); | |
844 | if (IS_ERR(info->edev)) { | |
845 | dev_err(&pdev->dev, "Failed to allocate memory for extcon\n"); | |
846 | ret = -ENODEV; | |
847 | goto err_muic_irq; | |
848 | } | |
849 | ||
850 | ret = devm_extcon_dev_register(&pdev->dev, info->edev); | |
851 | if (ret) { | |
852 | dev_err(&pdev->dev, "Failed to register extcon device\n"); | |
853 | goto err_muic_irq; | |
854 | } | |
855 | ||
856 | /* Set ADC debounce time */ | |
857 | max77843_muic_set_debounce_time(info, MAX77843_DEBOUNCE_TIME_25MS); | |
858 | ||
859 | /* Set initial path for UART */ | |
4a4a8714 MS |
860 | max77843_muic_set_path(info, MAX77843_MUIC_CONTROL1_SW_UART, true, |
861 | false); | |
27a28d32 JK |
862 | |
863 | /* Check revision number of MUIC device */ | |
864 | ret = regmap_read(max77843->regmap_muic, MAX77843_MUIC_REG_ID, &id); | |
865 | if (ret < 0) { | |
866 | dev_err(&pdev->dev, "Failed to read revision number\n"); | |
867 | goto err_muic_irq; | |
868 | } | |
869 | dev_info(info->dev, "MUIC device ID : 0x%x\n", id); | |
870 | ||
871 | /* Support virtual irq domain for max77843 MUIC device */ | |
872 | INIT_WORK(&info->irq_work, max77843_muic_irq_work); | |
873 | ||
135d9f7d JK |
874 | /* Clear IRQ bits before request IRQs */ |
875 | ret = regmap_bulk_read(max77843->regmap_muic, | |
876 | MAX77843_MUIC_REG_INT1, info->status, | |
c4924e92 | 877 | MAX77843_MUIC_STATUS_NUM); |
135d9f7d JK |
878 | if (ret) { |
879 | dev_err(&pdev->dev, "Failed to Clear IRQ bits\n"); | |
880 | goto err_muic_irq; | |
881 | } | |
882 | ||
27a28d32 JK |
883 | for (i = 0; i < ARRAY_SIZE(max77843_muic_irqs); i++) { |
884 | struct max77843_muic_irq *muic_irq = &max77843_muic_irqs[i]; | |
c05c0d54 | 885 | int virq = 0; |
27a28d32 JK |
886 | |
887 | virq = regmap_irq_get_virq(max77843->irq_data_muic, | |
888 | muic_irq->irq); | |
889 | if (virq <= 0) { | |
890 | ret = -EINVAL; | |
891 | goto err_muic_irq; | |
892 | } | |
893 | muic_irq->virq = virq; | |
894 | ||
895 | ret = devm_request_threaded_irq(&pdev->dev, virq, NULL, | |
896 | max77843_muic_irq_handler, IRQF_NO_SUSPEND, | |
897 | muic_irq->name, info); | |
898 | if (ret) { | |
899 | dev_err(&pdev->dev, | |
900 | "Failed to request irq (IRQ: %d, error: %d)\n", | |
901 | muic_irq->irq, ret); | |
902 | goto err_muic_irq; | |
903 | } | |
904 | } | |
905 | ||
906 | /* Detect accessory after completing the initialization of platform */ | |
907 | INIT_DELAYED_WORK(&info->wq_detcable, max77843_muic_detect_cable_wq); | |
908 | queue_delayed_work(system_power_efficient_wq, | |
909 | &info->wq_detcable, msecs_to_jiffies(DELAY_MS_DEFAULT)); | |
910 | ||
911 | return 0; | |
912 | ||
913 | err_muic_irq: | |
914 | regmap_del_irq_chip(max77843->irq, max77843->irq_data_muic); | |
915 | i2c_unregister_device(max77843->i2c_muic); | |
916 | ||
917 | return ret; | |
918 | } | |
919 | ||
920 | static int max77843_muic_remove(struct platform_device *pdev) | |
921 | { | |
922 | struct max77843_muic_info *info = platform_get_drvdata(pdev); | |
bc1aadc1 | 923 | struct max77693_dev *max77843 = info->max77843; |
27a28d32 JK |
924 | |
925 | cancel_work_sync(&info->irq_work); | |
926 | regmap_del_irq_chip(max77843->irq, max77843->irq_data_muic); | |
927 | i2c_unregister_device(max77843->i2c_muic); | |
928 | ||
929 | return 0; | |
930 | } | |
931 | ||
932 | static const struct platform_device_id max77843_muic_id[] = { | |
933 | { "max77843-muic", }, | |
934 | { /* sentinel */ }, | |
935 | }; | |
936 | MODULE_DEVICE_TABLE(platform, max77843_muic_id); | |
937 | ||
938 | static struct platform_driver max77843_muic_driver = { | |
939 | .driver = { | |
940 | .name = "max77843-muic", | |
941 | }, | |
942 | .probe = max77843_muic_probe, | |
943 | .remove = max77843_muic_remove, | |
944 | .id_table = max77843_muic_id, | |
945 | }; | |
946 | ||
947 | static int __init max77843_muic_init(void) | |
948 | { | |
949 | return platform_driver_register(&max77843_muic_driver); | |
950 | } | |
951 | subsys_initcall(max77843_muic_init); | |
952 | ||
953 | MODULE_DESCRIPTION("Maxim MAX77843 Extcon driver"); | |
954 | MODULE_AUTHOR("Jaewon Kim <jaewon02.kim@samsung.com>"); | |
955 | MODULE_LICENSE("GPL"); |