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aff268cd MR |
1 | /* |
2 | * apds9960.c - Support for Avago APDS9960 gesture/RGB/ALS/proximity sensor | |
3 | * | |
4 | * Copyright (C) 2015 Matt Ranostay <mranostay@gmail.com> | |
5 | * | |
6 | * This program is free software; you can redistribute it and/or modify | |
7 | * it under the terms of the GNU General Public License as published by | |
8 | * the Free Software Foundation; either version 2 of the License, or | |
9 | * (at your option) any later version. | |
10 | * | |
11 | * This program is distributed in the hope that it will be useful, | |
12 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
13 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
14 | * GNU General Public License for more details. | |
15 | * | |
16 | * TODO: gesture + proximity calib offsets | |
17 | */ | |
18 | ||
19 | #include <linux/module.h> | |
20 | #include <linux/init.h> | |
21 | #include <linux/interrupt.h> | |
22 | #include <linux/delay.h> | |
23 | #include <linux/mutex.h> | |
24 | #include <linux/err.h> | |
25 | #include <linux/irq.h> | |
26 | #include <linux/gpio.h> | |
27 | #include <linux/i2c.h> | |
28 | #include <linux/pm_runtime.h> | |
29 | #include <linux/regmap.h> | |
30 | #include <linux/iio/iio.h> | |
31 | #include <linux/iio/buffer.h> | |
32 | #include <linux/iio/events.h> | |
33 | #include <linux/iio/kfifo_buf.h> | |
34 | #include <linux/iio/sysfs.h> | |
35 | #include <linux/of_gpio.h> | |
36 | ||
37 | #define APDS9960_REGMAP_NAME "apds9960_regmap" | |
38 | #define APDS9960_DRV_NAME "apds9960" | |
39 | ||
40 | #define APDS9960_REG_RAM_START 0x00 | |
41 | #define APDS9960_REG_RAM_END 0x7f | |
42 | ||
43 | #define APDS9960_REG_ENABLE 0x80 | |
44 | #define APDS9960_REG_ATIME 0x81 | |
45 | #define APDS9960_REG_WTIME 0x83 | |
46 | ||
47 | #define APDS9960_REG_AILTL 0x84 | |
48 | #define APDS9960_REG_AILTH 0x85 | |
49 | #define APDS9960_REG_AIHTL 0x86 | |
50 | #define APDS9960_REG_AIHTH 0x87 | |
51 | ||
52 | #define APDS9960_REG_PILT 0x89 | |
53 | #define APDS9960_REG_PIHT 0x8b | |
54 | #define APDS9960_REG_PERS 0x8c | |
55 | ||
56 | #define APDS9960_REG_CONFIG_1 0x8d | |
57 | #define APDS9960_REG_PPULSE 0x8e | |
58 | ||
59 | #define APDS9960_REG_CONTROL 0x8f | |
60 | #define APDS9960_REG_CONTROL_AGAIN_MASK 0x03 | |
61 | #define APDS9960_REG_CONTROL_PGAIN_MASK 0x0c | |
62 | #define APDS9960_REG_CONTROL_AGAIN_MASK_SHIFT 0 | |
63 | #define APDS9960_REG_CONTROL_PGAIN_MASK_SHIFT 2 | |
64 | ||
65 | #define APDS9960_REG_CONFIG_2 0x90 | |
66 | #define APDS9960_REG_CONFIG_2_GGAIN_MASK 0x60 | |
67 | #define APDS9960_REG_CONFIG_2_GGAIN_MASK_SHIFT 5 | |
68 | ||
69 | #define APDS9960_REG_ID 0x92 | |
70 | ||
71 | #define APDS9960_REG_STATUS 0x93 | |
72 | #define APDS9960_REG_STATUS_PS_INT BIT(5) | |
73 | #define APDS9960_REG_STATUS_ALS_INT BIT(4) | |
74 | #define APDS9960_REG_STATUS_GINT BIT(2) | |
75 | ||
76 | #define APDS9960_REG_PDATA 0x9c | |
77 | #define APDS9960_REG_POFFSET_UR 0x9d | |
78 | #define APDS9960_REG_POFFSET_DL 0x9e | |
79 | #define APDS9960_REG_CONFIG_3 0x9f | |
80 | ||
81 | #define APDS9960_REG_GPENTH 0xa0 | |
82 | #define APDS9960_REG_GEXTH 0xa1 | |
83 | ||
84 | #define APDS9960_REG_GCONF_1 0xa2 | |
85 | #define APDS9960_REG_GCONF_1_GFIFO_THRES_MASK 0xc0 | |
86 | #define APDS9960_REG_GCONF_1_GFIFO_THRES_MASK_SHIFT 6 | |
87 | ||
88 | #define APDS9960_REG_GCONF_2 0xa3 | |
89 | #define APDS9960_REG_GOFFSET_U 0xa4 | |
90 | #define APDS9960_REG_GOFFSET_D 0xa5 | |
91 | #define APDS9960_REG_GPULSE 0xa6 | |
92 | #define APDS9960_REG_GOFFSET_L 0xa7 | |
93 | #define APDS9960_REG_GOFFSET_R 0xa9 | |
94 | #define APDS9960_REG_GCONF_3 0xaa | |
95 | ||
96 | #define APDS9960_REG_GCONF_4 0xab | |
97 | #define APDS9960_REG_GFLVL 0xae | |
98 | #define APDS9960_REG_GSTATUS 0xaf | |
99 | ||
100 | #define APDS9960_REG_IFORCE 0xe4 | |
101 | #define APDS9960_REG_PICLEAR 0xe5 | |
102 | #define APDS9960_REG_CICLEAR 0xe6 | |
103 | #define APDS9960_REG_AICLEAR 0xe7 | |
104 | ||
105 | #define APDS9960_DEFAULT_PERS 0x33 | |
106 | #define APDS9960_DEFAULT_GPENTH 0x50 | |
107 | #define APDS9960_DEFAULT_GEXTH 0x40 | |
108 | ||
109 | #define APDS9960_MAX_PXS_THRES_VAL 255 | |
110 | #define APDS9960_MAX_ALS_THRES_VAL 0xffff | |
111 | #define APDS9960_MAX_INT_TIME_IN_US 1000000 | |
112 | ||
113 | enum apds9960_als_channel_idx { | |
114 | IDX_ALS_CLEAR, IDX_ALS_RED, IDX_ALS_GREEN, IDX_ALS_BLUE, | |
115 | }; | |
116 | ||
117 | #define APDS9960_REG_ALS_BASE 0x94 | |
118 | #define APDS9960_REG_ALS_CHANNEL(_colour) \ | |
119 | (APDS9960_REG_ALS_BASE + (IDX_ALS_##_colour * 2)) | |
120 | ||
121 | enum apds9960_gesture_channel_idx { | |
122 | IDX_DIR_UP, IDX_DIR_DOWN, IDX_DIR_LEFT, IDX_DIR_RIGHT, | |
123 | }; | |
124 | ||
125 | #define APDS9960_REG_GFIFO_BASE 0xfc | |
126 | #define APDS9960_REG_GFIFO_DIR(_dir) \ | |
127 | (APDS9960_REG_GFIFO_BASE + IDX_DIR_##_dir) | |
128 | ||
129 | struct apds9960_data { | |
130 | struct i2c_client *client; | |
131 | struct iio_dev *indio_dev; | |
132 | struct mutex lock; | |
133 | ||
134 | /* regmap fields */ | |
135 | struct regmap *regmap; | |
136 | struct regmap_field *reg_int_als; | |
137 | struct regmap_field *reg_int_ges; | |
138 | struct regmap_field *reg_int_pxs; | |
139 | ||
140 | struct regmap_field *reg_enable_als; | |
141 | struct regmap_field *reg_enable_ges; | |
142 | struct regmap_field *reg_enable_pxs; | |
143 | ||
144 | /* state */ | |
145 | int als_int; | |
146 | int pxs_int; | |
147 | int gesture_mode_running; | |
148 | ||
149 | /* gain values */ | |
150 | int als_gain; | |
151 | int pxs_gain; | |
152 | ||
153 | /* integration time value in us */ | |
154 | int als_adc_int_us; | |
155 | ||
156 | /* gesture buffer */ | |
157 | u8 buffer[4]; /* 4 8-bit channels */ | |
158 | }; | |
159 | ||
160 | static const struct reg_default apds9960_reg_defaults[] = { | |
161 | /* Default ALS integration time = 2.48ms */ | |
162 | { APDS9960_REG_ATIME, 0xff }, | |
163 | }; | |
164 | ||
165 | static const struct regmap_range apds9960_volatile_ranges[] = { | |
166 | regmap_reg_range(APDS9960_REG_STATUS, | |
167 | APDS9960_REG_PDATA), | |
168 | regmap_reg_range(APDS9960_REG_GFLVL, | |
169 | APDS9960_REG_GSTATUS), | |
170 | regmap_reg_range(APDS9960_REG_GFIFO_DIR(UP), | |
171 | APDS9960_REG_GFIFO_DIR(RIGHT)), | |
172 | regmap_reg_range(APDS9960_REG_IFORCE, | |
173 | APDS9960_REG_AICLEAR), | |
174 | }; | |
175 | ||
176 | static const struct regmap_access_table apds9960_volatile_table = { | |
177 | .yes_ranges = apds9960_volatile_ranges, | |
178 | .n_yes_ranges = ARRAY_SIZE(apds9960_volatile_ranges), | |
179 | }; | |
180 | ||
181 | static const struct regmap_range apds9960_precious_ranges[] = { | |
182 | regmap_reg_range(APDS9960_REG_RAM_START, APDS9960_REG_RAM_END), | |
183 | }; | |
184 | ||
185 | static const struct regmap_access_table apds9960_precious_table = { | |
186 | .yes_ranges = apds9960_precious_ranges, | |
187 | .n_yes_ranges = ARRAY_SIZE(apds9960_precious_ranges), | |
188 | }; | |
189 | ||
190 | static const struct regmap_range apds9960_readable_ranges[] = { | |
191 | regmap_reg_range(APDS9960_REG_ENABLE, | |
192 | APDS9960_REG_GSTATUS), | |
193 | regmap_reg_range(APDS9960_REG_GFIFO_DIR(UP), | |
194 | APDS9960_REG_GFIFO_DIR(RIGHT)), | |
195 | }; | |
196 | ||
197 | static const struct regmap_access_table apds9960_readable_table = { | |
198 | .yes_ranges = apds9960_readable_ranges, | |
199 | .n_yes_ranges = ARRAY_SIZE(apds9960_readable_ranges), | |
200 | }; | |
201 | ||
202 | static const struct regmap_range apds9960_writeable_ranges[] = { | |
203 | regmap_reg_range(APDS9960_REG_ENABLE, APDS9960_REG_CONFIG_2), | |
204 | regmap_reg_range(APDS9960_REG_POFFSET_UR, APDS9960_REG_GCONF_4), | |
205 | regmap_reg_range(APDS9960_REG_IFORCE, APDS9960_REG_AICLEAR), | |
206 | }; | |
207 | ||
208 | static const struct regmap_access_table apds9960_writeable_table = { | |
209 | .yes_ranges = apds9960_writeable_ranges, | |
210 | .n_yes_ranges = ARRAY_SIZE(apds9960_writeable_ranges), | |
211 | }; | |
212 | ||
213 | static const struct regmap_config apds9960_regmap_config = { | |
214 | .name = APDS9960_REGMAP_NAME, | |
215 | .reg_bits = 8, | |
216 | .val_bits = 8, | |
217 | .use_single_rw = 1, | |
218 | ||
219 | .volatile_table = &apds9960_volatile_table, | |
220 | .precious_table = &apds9960_precious_table, | |
221 | .rd_table = &apds9960_readable_table, | |
222 | .wr_table = &apds9960_writeable_table, | |
223 | ||
224 | .reg_defaults = apds9960_reg_defaults, | |
225 | .num_reg_defaults = ARRAY_SIZE(apds9960_reg_defaults), | |
226 | .max_register = APDS9960_REG_GFIFO_DIR(RIGHT), | |
227 | .cache_type = REGCACHE_RBTREE, | |
228 | }; | |
229 | ||
230 | static const struct iio_event_spec apds9960_pxs_event_spec[] = { | |
231 | { | |
232 | .type = IIO_EV_TYPE_THRESH, | |
233 | .dir = IIO_EV_DIR_RISING, | |
234 | .mask_separate = BIT(IIO_EV_INFO_VALUE) | | |
235 | BIT(IIO_EV_INFO_ENABLE), | |
236 | }, | |
237 | { | |
238 | .type = IIO_EV_TYPE_THRESH, | |
239 | .dir = IIO_EV_DIR_FALLING, | |
240 | .mask_separate = BIT(IIO_EV_INFO_VALUE) | | |
241 | BIT(IIO_EV_INFO_ENABLE), | |
242 | }, | |
243 | }; | |
244 | ||
245 | static const struct iio_event_spec apds9960_als_event_spec[] = { | |
246 | { | |
247 | .type = IIO_EV_TYPE_THRESH, | |
248 | .dir = IIO_EV_DIR_RISING, | |
249 | .mask_separate = BIT(IIO_EV_INFO_VALUE) | | |
250 | BIT(IIO_EV_INFO_ENABLE), | |
251 | }, | |
252 | { | |
253 | .type = IIO_EV_TYPE_THRESH, | |
254 | .dir = IIO_EV_DIR_FALLING, | |
255 | .mask_separate = BIT(IIO_EV_INFO_VALUE) | | |
256 | BIT(IIO_EV_INFO_ENABLE), | |
257 | }, | |
258 | }; | |
259 | ||
260 | #define APDS9960_GESTURE_CHANNEL(_dir, _si) { \ | |
261 | .type = IIO_PROXIMITY, \ | |
262 | .channel = _si + 1, \ | |
263 | .scan_index = _si, \ | |
264 | .indexed = 1, \ | |
265 | .scan_type = { \ | |
266 | .sign = 'u', \ | |
267 | .realbits = 8, \ | |
268 | .storagebits = 8, \ | |
269 | }, \ | |
270 | } | |
271 | ||
272 | #define APDS9960_INTENSITY_CHANNEL(_colour) { \ | |
273 | .type = IIO_INTENSITY, \ | |
274 | .info_mask_separate = BIT(IIO_CHAN_INFO_RAW), \ | |
275 | .info_mask_shared_by_type = BIT(IIO_CHAN_INFO_SCALE) | \ | |
276 | BIT(IIO_CHAN_INFO_INT_TIME), \ | |
277 | .channel2 = IIO_MOD_LIGHT_##_colour, \ | |
278 | .address = APDS9960_REG_ALS_CHANNEL(_colour), \ | |
279 | .modified = 1, \ | |
280 | .scan_index = -1, \ | |
281 | } | |
282 | ||
283 | static const unsigned long apds9960_scan_masks[] = {0xf, 0}; | |
284 | ||
285 | static const struct iio_chan_spec apds9960_channels[] = { | |
286 | { | |
287 | .type = IIO_PROXIMITY, | |
288 | .address = APDS9960_REG_PDATA, | |
289 | .info_mask_separate = BIT(IIO_CHAN_INFO_RAW), | |
290 | .info_mask_shared_by_type = BIT(IIO_CHAN_INFO_SCALE), | |
291 | .channel = 0, | |
292 | .indexed = 0, | |
293 | .scan_index = -1, | |
294 | ||
295 | .event_spec = apds9960_pxs_event_spec, | |
296 | .num_event_specs = ARRAY_SIZE(apds9960_pxs_event_spec), | |
297 | }, | |
298 | /* Gesture Sensor */ | |
299 | APDS9960_GESTURE_CHANNEL(UP, 0), | |
300 | APDS9960_GESTURE_CHANNEL(DOWN, 1), | |
301 | APDS9960_GESTURE_CHANNEL(LEFT, 2), | |
302 | APDS9960_GESTURE_CHANNEL(RIGHT, 3), | |
303 | /* ALS */ | |
304 | { | |
305 | .type = IIO_INTENSITY, | |
306 | .info_mask_separate = BIT(IIO_CHAN_INFO_RAW), | |
307 | .info_mask_shared_by_type = BIT(IIO_CHAN_INFO_SCALE) | | |
308 | BIT(IIO_CHAN_INFO_INT_TIME), | |
309 | .channel2 = IIO_MOD_LIGHT_CLEAR, | |
310 | .address = APDS9960_REG_ALS_CHANNEL(CLEAR), | |
311 | .modified = 1, | |
312 | .scan_index = -1, | |
313 | ||
314 | .event_spec = apds9960_als_event_spec, | |
315 | .num_event_specs = ARRAY_SIZE(apds9960_als_event_spec), | |
316 | }, | |
317 | /* RGB Sensor */ | |
318 | APDS9960_INTENSITY_CHANNEL(RED), | |
319 | APDS9960_INTENSITY_CHANNEL(GREEN), | |
320 | APDS9960_INTENSITY_CHANNEL(BLUE), | |
321 | }; | |
322 | ||
323 | /* integration time in us */ | |
ebe16806 SS |
324 | static const int apds9960_int_time[][2] = { |
325 | { 28000, 246}, | |
326 | {100000, 219}, | |
327 | {200000, 182}, | |
328 | {700000, 0} | |
329 | }; | |
aff268cd MR |
330 | |
331 | /* gain mapping */ | |
332 | static const int apds9960_pxs_gain_map[] = {1, 2, 4, 8}; | |
333 | static const int apds9960_als_gain_map[] = {1, 4, 16, 64}; | |
334 | ||
335 | static IIO_CONST_ATTR(proximity_scale_available, "1 2 4 8"); | |
336 | static IIO_CONST_ATTR(intensity_scale_available, "1 4 16 64"); | |
337 | static IIO_CONST_ATTR_INT_TIME_AVAIL("0.028 0.1 0.2 0.7"); | |
338 | ||
339 | static struct attribute *apds9960_attributes[] = { | |
340 | &iio_const_attr_proximity_scale_available.dev_attr.attr, | |
341 | &iio_const_attr_intensity_scale_available.dev_attr.attr, | |
342 | &iio_const_attr_integration_time_available.dev_attr.attr, | |
343 | NULL, | |
344 | }; | |
345 | ||
346 | static struct attribute_group apds9960_attribute_group = { | |
347 | .attrs = apds9960_attributes, | |
348 | }; | |
349 | ||
350 | static const struct reg_field apds9960_reg_field_int_als = | |
351 | REG_FIELD(APDS9960_REG_ENABLE, 4, 4); | |
352 | ||
353 | static const struct reg_field apds9960_reg_field_int_ges = | |
354 | REG_FIELD(APDS9960_REG_GCONF_4, 1, 1); | |
355 | ||
356 | static const struct reg_field apds9960_reg_field_int_pxs = | |
357 | REG_FIELD(APDS9960_REG_ENABLE, 5, 5); | |
358 | ||
359 | static const struct reg_field apds9960_reg_field_enable_als = | |
360 | REG_FIELD(APDS9960_REG_ENABLE, 1, 1); | |
361 | ||
362 | static const struct reg_field apds9960_reg_field_enable_ges = | |
363 | REG_FIELD(APDS9960_REG_ENABLE, 6, 6); | |
364 | ||
365 | static const struct reg_field apds9960_reg_field_enable_pxs = | |
366 | REG_FIELD(APDS9960_REG_ENABLE, 2, 2); | |
367 | ||
368 | static int apds9960_set_it_time(struct apds9960_data *data, int val2) | |
369 | { | |
370 | int ret = -EINVAL; | |
371 | int idx; | |
372 | ||
373 | for (idx = 0; idx < ARRAY_SIZE(apds9960_int_time); idx++) { | |
374 | if (apds9960_int_time[idx][0] == val2) { | |
375 | mutex_lock(&data->lock); | |
376 | ret = regmap_write(data->regmap, APDS9960_REG_ATIME, | |
377 | apds9960_int_time[idx][1]); | |
378 | if (!ret) | |
379 | data->als_adc_int_us = val2; | |
380 | mutex_unlock(&data->lock); | |
381 | break; | |
382 | } | |
383 | } | |
384 | ||
385 | return ret; | |
386 | } | |
387 | ||
388 | static int apds9960_set_pxs_gain(struct apds9960_data *data, int val) | |
389 | { | |
390 | int ret = -EINVAL; | |
391 | int idx; | |
392 | ||
393 | for (idx = 0; idx < ARRAY_SIZE(apds9960_pxs_gain_map); idx++) { | |
394 | if (apds9960_pxs_gain_map[idx] == val) { | |
395 | /* pxs + gesture gains are mirrored */ | |
396 | mutex_lock(&data->lock); | |
397 | ret = regmap_update_bits(data->regmap, | |
398 | APDS9960_REG_CONTROL, | |
399 | APDS9960_REG_CONTROL_PGAIN_MASK, | |
400 | idx << APDS9960_REG_CONTROL_PGAIN_MASK_SHIFT); | |
401 | if (ret) { | |
402 | mutex_unlock(&data->lock); | |
403 | break; | |
404 | } | |
405 | ||
406 | ret = regmap_update_bits(data->regmap, | |
407 | APDS9960_REG_CONFIG_2, | |
408 | APDS9960_REG_CONFIG_2_GGAIN_MASK, | |
409 | idx << APDS9960_REG_CONFIG_2_GGAIN_MASK_SHIFT); | |
410 | if (!ret) | |
411 | data->pxs_gain = idx; | |
412 | mutex_unlock(&data->lock); | |
413 | break; | |
414 | } | |
415 | } | |
416 | ||
417 | return ret; | |
418 | } | |
419 | ||
420 | static int apds9960_set_als_gain(struct apds9960_data *data, int val) | |
421 | { | |
422 | int ret = -EINVAL; | |
423 | int idx; | |
424 | ||
425 | for (idx = 0; idx < ARRAY_SIZE(apds9960_als_gain_map); idx++) { | |
426 | if (apds9960_als_gain_map[idx] == val) { | |
427 | mutex_lock(&data->lock); | |
428 | ret = regmap_update_bits(data->regmap, | |
429 | APDS9960_REG_CONTROL, | |
430 | APDS9960_REG_CONTROL_AGAIN_MASK, idx); | |
431 | if (!ret) | |
432 | data->als_gain = idx; | |
433 | mutex_unlock(&data->lock); | |
434 | break; | |
435 | } | |
436 | } | |
437 | ||
438 | return ret; | |
439 | } | |
440 | ||
441 | #ifdef CONFIG_PM | |
442 | static int apds9960_set_power_state(struct apds9960_data *data, bool on) | |
443 | { | |
444 | struct device *dev = &data->client->dev; | |
445 | int ret = 0; | |
446 | ||
447 | mutex_lock(&data->lock); | |
448 | ||
449 | if (on) { | |
450 | int suspended; | |
451 | ||
452 | suspended = pm_runtime_suspended(dev); | |
453 | ret = pm_runtime_get_sync(dev); | |
454 | ||
455 | /* Allow one integration cycle before allowing a reading */ | |
456 | if (suspended) | |
457 | usleep_range(data->als_adc_int_us, | |
458 | APDS9960_MAX_INT_TIME_IN_US); | |
459 | } else { | |
8386c275 | 460 | pm_runtime_mark_last_busy(dev); |
aff268cd MR |
461 | ret = pm_runtime_put_autosuspend(dev); |
462 | } | |
463 | ||
464 | mutex_unlock(&data->lock); | |
465 | ||
466 | return ret; | |
467 | } | |
468 | #else | |
469 | static int apds9960_set_power_state(struct apds9960_data *data, bool on) | |
470 | { | |
471 | return 0; | |
472 | } | |
473 | #endif | |
474 | ||
475 | static int apds9960_read_raw(struct iio_dev *indio_dev, | |
476 | struct iio_chan_spec const *chan, | |
477 | int *val, int *val2, long mask) | |
478 | { | |
479 | struct apds9960_data *data = iio_priv(indio_dev); | |
801ab335 | 480 | __le16 buf; |
aff268cd MR |
481 | int ret = -EINVAL; |
482 | ||
483 | if (data->gesture_mode_running) | |
484 | return -EBUSY; | |
485 | ||
486 | switch (mask) { | |
487 | case IIO_CHAN_INFO_RAW: | |
488 | apds9960_set_power_state(data, true); | |
489 | switch (chan->type) { | |
490 | case IIO_PROXIMITY: | |
491 | ret = regmap_read(data->regmap, chan->address, val); | |
492 | if (!ret) | |
493 | ret = IIO_VAL_INT; | |
494 | break; | |
495 | case IIO_INTENSITY: | |
496 | ret = regmap_bulk_read(data->regmap, chan->address, | |
497 | &buf, 2); | |
f2112259 | 498 | if (!ret) { |
aff268cd | 499 | ret = IIO_VAL_INT; |
f2112259 DC |
500 | *val = le16_to_cpu(buf); |
501 | } | |
aff268cd MR |
502 | break; |
503 | default: | |
504 | ret = -EINVAL; | |
505 | } | |
506 | apds9960_set_power_state(data, false); | |
507 | break; | |
508 | case IIO_CHAN_INFO_INT_TIME: | |
509 | /* RGB + ALS sensors only have integration time */ | |
510 | mutex_lock(&data->lock); | |
511 | switch (chan->type) { | |
512 | case IIO_INTENSITY: | |
513 | *val = 0; | |
514 | *val2 = data->als_adc_int_us; | |
515 | ret = IIO_VAL_INT_PLUS_MICRO; | |
516 | break; | |
517 | default: | |
518 | ret = -EINVAL; | |
519 | } | |
520 | mutex_unlock(&data->lock); | |
521 | break; | |
522 | case IIO_CHAN_INFO_SCALE: | |
523 | mutex_lock(&data->lock); | |
524 | switch (chan->type) { | |
525 | case IIO_PROXIMITY: | |
526 | *val = apds9960_pxs_gain_map[data->pxs_gain]; | |
527 | ret = IIO_VAL_INT; | |
528 | break; | |
529 | case IIO_INTENSITY: | |
530 | *val = apds9960_als_gain_map[data->als_gain]; | |
531 | ret = IIO_VAL_INT; | |
532 | break; | |
533 | default: | |
534 | ret = -EINVAL; | |
535 | } | |
536 | mutex_unlock(&data->lock); | |
537 | break; | |
538 | } | |
539 | ||
540 | return ret; | |
541 | }; | |
542 | ||
543 | static int apds9960_write_raw(struct iio_dev *indio_dev, | |
544 | struct iio_chan_spec const *chan, | |
545 | int val, int val2, long mask) | |
546 | { | |
547 | struct apds9960_data *data = iio_priv(indio_dev); | |
548 | ||
549 | switch (mask) { | |
550 | case IIO_CHAN_INFO_INT_TIME: | |
551 | /* RGB + ALS sensors only have int time */ | |
552 | switch (chan->type) { | |
553 | case IIO_INTENSITY: | |
554 | if (val != 0) | |
555 | return -EINVAL; | |
556 | return apds9960_set_it_time(data, val2); | |
557 | default: | |
558 | return -EINVAL; | |
559 | } | |
560 | case IIO_CHAN_INFO_SCALE: | |
561 | if (val2 != 0) | |
562 | return -EINVAL; | |
563 | switch (chan->type) { | |
564 | case IIO_PROXIMITY: | |
565 | return apds9960_set_pxs_gain(data, val); | |
566 | case IIO_INTENSITY: | |
567 | return apds9960_set_als_gain(data, val); | |
568 | default: | |
569 | return -EINVAL; | |
570 | } | |
571 | default: | |
572 | return -EINVAL; | |
573 | }; | |
574 | ||
575 | return 0; | |
576 | } | |
577 | ||
578 | static inline int apds9960_get_thres_reg(const struct iio_chan_spec *chan, | |
579 | enum iio_event_direction dir, | |
580 | u8 *reg) | |
581 | { | |
582 | switch (dir) { | |
583 | case IIO_EV_DIR_RISING: | |
584 | switch (chan->type) { | |
585 | case IIO_PROXIMITY: | |
586 | *reg = APDS9960_REG_PIHT; | |
587 | break; | |
588 | case IIO_INTENSITY: | |
589 | *reg = APDS9960_REG_AIHTL; | |
590 | break; | |
591 | default: | |
592 | return -EINVAL; | |
593 | } | |
594 | break; | |
595 | case IIO_EV_DIR_FALLING: | |
596 | switch (chan->type) { | |
597 | case IIO_PROXIMITY: | |
598 | *reg = APDS9960_REG_PILT; | |
599 | break; | |
600 | case IIO_INTENSITY: | |
601 | *reg = APDS9960_REG_AILTL; | |
602 | break; | |
603 | default: | |
604 | return -EINVAL; | |
605 | } | |
606 | break; | |
607 | default: | |
608 | return -EINVAL; | |
609 | } | |
610 | ||
611 | return 0; | |
612 | } | |
613 | ||
614 | static int apds9960_read_event(struct iio_dev *indio_dev, | |
615 | const struct iio_chan_spec *chan, | |
616 | enum iio_event_type type, | |
617 | enum iio_event_direction dir, | |
618 | enum iio_event_info info, | |
619 | int *val, int *val2) | |
620 | { | |
621 | u8 reg; | |
801ab335 | 622 | __le16 buf; |
aff268cd MR |
623 | int ret = 0; |
624 | struct apds9960_data *data = iio_priv(indio_dev); | |
625 | ||
626 | if (info != IIO_EV_INFO_VALUE) | |
627 | return -EINVAL; | |
628 | ||
629 | ret = apds9960_get_thres_reg(chan, dir, ®); | |
630 | if (ret < 0) | |
631 | return ret; | |
632 | ||
633 | if (chan->type == IIO_PROXIMITY) { | |
634 | ret = regmap_read(data->regmap, reg, val); | |
635 | if (ret < 0) | |
636 | return ret; | |
637 | } else if (chan->type == IIO_INTENSITY) { | |
638 | ret = regmap_bulk_read(data->regmap, reg, &buf, 2); | |
639 | if (ret < 0) | |
640 | return ret; | |
641 | *val = le16_to_cpu(buf); | |
642 | } else | |
643 | return -EINVAL; | |
644 | ||
645 | *val2 = 0; | |
646 | ||
647 | return IIO_VAL_INT; | |
648 | } | |
649 | ||
650 | static int apds9960_write_event(struct iio_dev *indio_dev, | |
651 | const struct iio_chan_spec *chan, | |
652 | enum iio_event_type type, | |
653 | enum iio_event_direction dir, | |
654 | enum iio_event_info info, | |
655 | int val, int val2) | |
656 | { | |
657 | u8 reg; | |
801ab335 | 658 | __le16 buf; |
aff268cd MR |
659 | int ret = 0; |
660 | struct apds9960_data *data = iio_priv(indio_dev); | |
661 | ||
662 | if (info != IIO_EV_INFO_VALUE) | |
663 | return -EINVAL; | |
664 | ||
665 | ret = apds9960_get_thres_reg(chan, dir, ®); | |
666 | if (ret < 0) | |
667 | return ret; | |
668 | ||
669 | if (chan->type == IIO_PROXIMITY) { | |
670 | if (val < 0 || val > APDS9960_MAX_PXS_THRES_VAL) | |
671 | return -EINVAL; | |
672 | ret = regmap_write(data->regmap, reg, val); | |
673 | if (ret < 0) | |
674 | return ret; | |
675 | } else if (chan->type == IIO_INTENSITY) { | |
676 | if (val < 0 || val > APDS9960_MAX_ALS_THRES_VAL) | |
677 | return -EINVAL; | |
678 | buf = cpu_to_le16(val); | |
679 | ret = regmap_bulk_write(data->regmap, reg, &buf, 2); | |
680 | if (ret < 0) | |
681 | return ret; | |
682 | } else | |
683 | return -EINVAL; | |
684 | ||
685 | return 0; | |
686 | } | |
687 | ||
688 | static int apds9960_read_event_config(struct iio_dev *indio_dev, | |
689 | const struct iio_chan_spec *chan, | |
690 | enum iio_event_type type, | |
691 | enum iio_event_direction dir) | |
692 | { | |
693 | struct apds9960_data *data = iio_priv(indio_dev); | |
694 | ||
695 | switch (chan->type) { | |
696 | case IIO_PROXIMITY: | |
697 | return data->pxs_int; | |
698 | case IIO_INTENSITY: | |
699 | return data->als_int; | |
700 | default: | |
701 | return -EINVAL; | |
702 | } | |
703 | ||
704 | return 0; | |
705 | } | |
706 | ||
707 | static int apds9960_write_event_config(struct iio_dev *indio_dev, | |
708 | const struct iio_chan_spec *chan, | |
709 | enum iio_event_type type, | |
710 | enum iio_event_direction dir, | |
711 | int state) | |
712 | { | |
713 | struct apds9960_data *data = iio_priv(indio_dev); | |
714 | int ret; | |
715 | ||
716 | state = !!state; | |
717 | ||
718 | switch (chan->type) { | |
719 | case IIO_PROXIMITY: | |
720 | if (data->pxs_int == state) | |
721 | return -EINVAL; | |
722 | ||
723 | ret = regmap_field_write(data->reg_int_pxs, state); | |
724 | if (ret) | |
725 | return ret; | |
726 | data->pxs_int = state; | |
727 | apds9960_set_power_state(data, state); | |
728 | break; | |
729 | case IIO_INTENSITY: | |
730 | if (data->als_int == state) | |
731 | return -EINVAL; | |
732 | ||
733 | ret = regmap_field_write(data->reg_int_als, state); | |
734 | if (ret) | |
735 | return ret; | |
736 | data->als_int = state; | |
737 | apds9960_set_power_state(data, state); | |
738 | break; | |
739 | default: | |
740 | return -EINVAL; | |
741 | } | |
742 | ||
743 | return 0; | |
744 | } | |
745 | ||
746 | static const struct iio_info apds9960_info = { | |
747 | .driver_module = THIS_MODULE, | |
748 | .attrs = &apds9960_attribute_group, | |
749 | .read_raw = apds9960_read_raw, | |
750 | .write_raw = apds9960_write_raw, | |
751 | .read_event_value = apds9960_read_event, | |
752 | .write_event_value = apds9960_write_event, | |
753 | .read_event_config = apds9960_read_event_config, | |
754 | .write_event_config = apds9960_write_event_config, | |
755 | ||
756 | }; | |
757 | ||
758 | static inline int apds9660_fifo_is_empty(struct apds9960_data *data) | |
759 | { | |
760 | int cnt; | |
761 | int ret; | |
762 | ||
763 | ret = regmap_read(data->regmap, APDS9960_REG_GFLVL, &cnt); | |
764 | if (ret) | |
765 | return ret; | |
766 | ||
767 | return cnt; | |
768 | } | |
769 | ||
770 | static void apds9960_read_gesture_fifo(struct apds9960_data *data) | |
771 | { | |
772 | int ret, cnt = 0; | |
773 | ||
774 | mutex_lock(&data->lock); | |
775 | data->gesture_mode_running = 1; | |
776 | ||
655048a0 | 777 | while (cnt || (cnt = apds9660_fifo_is_empty(data) > 0)) { |
aff268cd MR |
778 | ret = regmap_bulk_read(data->regmap, APDS9960_REG_GFIFO_BASE, |
779 | &data->buffer, 4); | |
780 | ||
781 | if (ret) | |
782 | goto err_read; | |
783 | ||
784 | iio_push_to_buffers(data->indio_dev, data->buffer); | |
655048a0 | 785 | cnt--; |
aff268cd MR |
786 | } |
787 | ||
788 | err_read: | |
789 | data->gesture_mode_running = 0; | |
790 | mutex_unlock(&data->lock); | |
791 | } | |
792 | ||
793 | static irqreturn_t apds9960_interrupt_handler(int irq, void *private) | |
794 | { | |
795 | struct iio_dev *indio_dev = private; | |
796 | struct apds9960_data *data = iio_priv(indio_dev); | |
797 | int ret, status; | |
798 | ||
799 | ret = regmap_read(data->regmap, APDS9960_REG_STATUS, &status); | |
800 | if (ret < 0) { | |
801 | dev_err(&data->client->dev, "irq status reg read failed\n"); | |
802 | return IRQ_HANDLED; | |
803 | } | |
804 | ||
805 | if ((status & APDS9960_REG_STATUS_ALS_INT) && data->als_int) { | |
806 | iio_push_event(indio_dev, | |
807 | IIO_UNMOD_EVENT_CODE(IIO_INTENSITY, 0, | |
808 | IIO_EV_TYPE_THRESH, | |
809 | IIO_EV_DIR_EITHER), | |
810 | iio_get_time_ns()); | |
811 | regmap_write(data->regmap, APDS9960_REG_CICLEAR, 1); | |
812 | } | |
813 | ||
814 | if ((status & APDS9960_REG_STATUS_PS_INT) && data->pxs_int) { | |
815 | iio_push_event(indio_dev, | |
816 | IIO_UNMOD_EVENT_CODE(IIO_PROXIMITY, 0, | |
817 | IIO_EV_TYPE_THRESH, | |
818 | IIO_EV_DIR_EITHER), | |
819 | iio_get_time_ns()); | |
820 | regmap_write(data->regmap, APDS9960_REG_PICLEAR, 1); | |
821 | } | |
822 | ||
823 | if (status & APDS9960_REG_STATUS_GINT) | |
824 | apds9960_read_gesture_fifo(data); | |
825 | ||
826 | return IRQ_HANDLED; | |
827 | } | |
828 | ||
829 | static int apds9960_set_powermode(struct apds9960_data *data, bool state) | |
830 | { | |
831 | return regmap_update_bits(data->regmap, APDS9960_REG_ENABLE, 1, state); | |
832 | } | |
833 | ||
834 | static int apds9960_buffer_postenable(struct iio_dev *indio_dev) | |
835 | { | |
836 | struct apds9960_data *data = iio_priv(indio_dev); | |
837 | int ret; | |
838 | ||
839 | ret = regmap_field_write(data->reg_int_ges, 1); | |
840 | if (ret) | |
841 | return ret; | |
842 | ||
843 | ret = regmap_field_write(data->reg_enable_ges, 1); | |
844 | if (ret) | |
845 | return ret; | |
846 | ||
847 | pm_runtime_get_sync(&data->client->dev); | |
848 | ||
849 | return 0; | |
850 | } | |
851 | ||
852 | static int apds9960_buffer_predisable(struct iio_dev *indio_dev) | |
853 | { | |
854 | struct apds9960_data *data = iio_priv(indio_dev); | |
855 | int ret; | |
856 | ||
857 | ret = regmap_field_write(data->reg_enable_ges, 0); | |
858 | if (ret) | |
859 | return ret; | |
860 | ||
861 | ret = regmap_field_write(data->reg_int_ges, 0); | |
862 | if (ret) | |
863 | return ret; | |
864 | ||
865 | pm_runtime_put_autosuspend(&data->client->dev); | |
866 | ||
867 | return 0; | |
868 | } | |
869 | ||
870 | static const struct iio_buffer_setup_ops apds9960_buffer_setup_ops = { | |
871 | .postenable = apds9960_buffer_postenable, | |
872 | .predisable = apds9960_buffer_predisable, | |
873 | }; | |
874 | ||
875 | static int apds9960_regfield_init(struct apds9960_data *data) | |
876 | { | |
877 | struct device *dev = &data->client->dev; | |
878 | struct regmap *regmap = data->regmap; | |
879 | ||
880 | data->reg_int_als = devm_regmap_field_alloc(dev, regmap, | |
881 | apds9960_reg_field_int_als); | |
882 | if (IS_ERR(data->reg_int_als)) { | |
883 | dev_err(dev, "INT ALS reg field init failed\n"); | |
884 | return PTR_ERR(data->reg_int_als); | |
885 | } | |
886 | ||
887 | data->reg_int_ges = devm_regmap_field_alloc(dev, regmap, | |
888 | apds9960_reg_field_int_ges); | |
889 | if (IS_ERR(data->reg_int_ges)) { | |
890 | dev_err(dev, "INT gesture reg field init failed\n"); | |
891 | return PTR_ERR(data->reg_int_ges); | |
892 | } | |
893 | ||
894 | data->reg_int_pxs = devm_regmap_field_alloc(dev, regmap, | |
895 | apds9960_reg_field_int_pxs); | |
896 | if (IS_ERR(data->reg_int_pxs)) { | |
897 | dev_err(dev, "INT pxs reg field init failed\n"); | |
898 | return PTR_ERR(data->reg_int_pxs); | |
899 | } | |
900 | ||
901 | data->reg_enable_als = devm_regmap_field_alloc(dev, regmap, | |
902 | apds9960_reg_field_enable_als); | |
903 | if (IS_ERR(data->reg_enable_als)) { | |
904 | dev_err(dev, "Enable ALS reg field init failed\n"); | |
905 | return PTR_ERR(data->reg_enable_als); | |
906 | } | |
907 | ||
908 | data->reg_enable_ges = devm_regmap_field_alloc(dev, regmap, | |
909 | apds9960_reg_field_enable_ges); | |
910 | if (IS_ERR(data->reg_enable_ges)) { | |
911 | dev_err(dev, "Enable gesture reg field init failed\n"); | |
912 | return PTR_ERR(data->reg_enable_ges); | |
913 | } | |
914 | ||
915 | data->reg_enable_pxs = devm_regmap_field_alloc(dev, regmap, | |
916 | apds9960_reg_field_enable_pxs); | |
917 | if (IS_ERR(data->reg_enable_pxs)) { | |
918 | dev_err(dev, "Enable PXS reg field init failed\n"); | |
919 | return PTR_ERR(data->reg_enable_pxs); | |
920 | } | |
921 | ||
922 | return 0; | |
923 | } | |
924 | ||
925 | static int apds9960_chip_init(struct apds9960_data *data) | |
926 | { | |
927 | int ret; | |
928 | ||
929 | /* Default IT for ALS of 28 ms */ | |
930 | ret = apds9960_set_it_time(data, 28000); | |
931 | if (ret) | |
932 | return ret; | |
933 | ||
934 | /* Ensure gesture interrupt is OFF */ | |
935 | ret = regmap_field_write(data->reg_int_ges, 0); | |
936 | if (ret) | |
937 | return ret; | |
938 | ||
939 | /* Disable gesture sensor, since polling is useless from user-space */ | |
940 | ret = regmap_field_write(data->reg_enable_ges, 0); | |
941 | if (ret) | |
942 | return ret; | |
943 | ||
944 | /* Ensure proximity interrupt is OFF */ | |
945 | ret = regmap_field_write(data->reg_int_pxs, 0); | |
946 | if (ret) | |
947 | return ret; | |
948 | ||
949 | /* Enable proximity sensor for polling */ | |
950 | ret = regmap_field_write(data->reg_enable_pxs, 1); | |
951 | if (ret) | |
952 | return ret; | |
953 | ||
954 | /* Ensure ALS interrupt is OFF */ | |
955 | ret = regmap_field_write(data->reg_int_als, 0); | |
956 | if (ret) | |
957 | return ret; | |
958 | ||
959 | /* Enable ALS sensor for polling */ | |
960 | ret = regmap_field_write(data->reg_enable_als, 1); | |
961 | if (ret) | |
962 | return ret; | |
963 | /* | |
964 | * When enabled trigger an interrupt after 3 readings | |
965 | * outside threshold for ALS + PXS | |
966 | */ | |
967 | ret = regmap_write(data->regmap, APDS9960_REG_PERS, | |
968 | APDS9960_DEFAULT_PERS); | |
969 | if (ret) | |
970 | return ret; | |
971 | ||
972 | /* | |
973 | * Wait for 4 event outside gesture threshold to prevent interrupt | |
974 | * flooding. | |
975 | */ | |
976 | ret = regmap_update_bits(data->regmap, APDS9960_REG_GCONF_1, | |
977 | APDS9960_REG_GCONF_1_GFIFO_THRES_MASK, | |
978 | BIT(0) << APDS9960_REG_GCONF_1_GFIFO_THRES_MASK_SHIFT); | |
979 | if (ret) | |
980 | return ret; | |
981 | ||
982 | /* Default ENTER and EXIT thresholds for the GESTURE engine. */ | |
983 | ret = regmap_write(data->regmap, APDS9960_REG_GPENTH, | |
984 | APDS9960_DEFAULT_GPENTH); | |
985 | if (ret) | |
986 | return ret; | |
987 | ||
988 | ret = regmap_write(data->regmap, APDS9960_REG_GEXTH, | |
989 | APDS9960_DEFAULT_GEXTH); | |
990 | if (ret) | |
991 | return ret; | |
992 | ||
ebe5c543 | 993 | return apds9960_set_powermode(data, 1); |
aff268cd MR |
994 | } |
995 | ||
996 | static int apds9960_probe(struct i2c_client *client, | |
997 | const struct i2c_device_id *id) | |
998 | { | |
999 | struct apds9960_data *data; | |
1000 | struct iio_buffer *buffer; | |
1001 | struct iio_dev *indio_dev; | |
1002 | int ret; | |
1003 | ||
1004 | indio_dev = devm_iio_device_alloc(&client->dev, sizeof(*data)); | |
1005 | if (!indio_dev) | |
1006 | return -ENOMEM; | |
1007 | ||
1008 | buffer = devm_iio_kfifo_allocate(&client->dev); | |
1009 | if (!buffer) | |
1010 | return -ENOMEM; | |
1011 | ||
1012 | iio_device_attach_buffer(indio_dev, buffer); | |
1013 | ||
590b92a3 | 1014 | indio_dev->dev.parent = &client->dev; |
aff268cd MR |
1015 | indio_dev->info = &apds9960_info; |
1016 | indio_dev->name = APDS9960_DRV_NAME; | |
1017 | indio_dev->channels = apds9960_channels; | |
1018 | indio_dev->num_channels = ARRAY_SIZE(apds9960_channels); | |
1019 | indio_dev->available_scan_masks = apds9960_scan_masks; | |
1020 | indio_dev->modes = (INDIO_BUFFER_SOFTWARE | INDIO_DIRECT_MODE); | |
1021 | indio_dev->setup_ops = &apds9960_buffer_setup_ops; | |
1022 | ||
1023 | data = iio_priv(indio_dev); | |
1024 | i2c_set_clientdata(client, indio_dev); | |
1025 | ||
1026 | data->regmap = devm_regmap_init_i2c(client, &apds9960_regmap_config); | |
1027 | if (IS_ERR(data->regmap)) { | |
1028 | dev_err(&client->dev, "regmap initialization failed.\n"); | |
1029 | return PTR_ERR(data->regmap); | |
1030 | } | |
1031 | ||
1032 | data->client = client; | |
1033 | data->indio_dev = indio_dev; | |
1034 | mutex_init(&data->lock); | |
1035 | ||
1036 | ret = pm_runtime_set_active(&client->dev); | |
1037 | if (ret) | |
1038 | goto error_power_down; | |
1039 | ||
1040 | pm_runtime_enable(&client->dev); | |
1041 | pm_runtime_set_autosuspend_delay(&client->dev, 5000); | |
1042 | pm_runtime_use_autosuspend(&client->dev); | |
1043 | ||
1044 | apds9960_set_power_state(data, true); | |
1045 | ||
1046 | ret = apds9960_regfield_init(data); | |
1047 | if (ret) | |
1048 | goto error_power_down; | |
1049 | ||
1050 | ret = apds9960_chip_init(data); | |
1051 | if (ret) | |
1052 | goto error_power_down; | |
1053 | ||
1054 | if (client->irq <= 0) { | |
1055 | dev_err(&client->dev, "no valid irq defined\n"); | |
1056 | ret = -EINVAL; | |
1057 | goto error_power_down; | |
1058 | } | |
1059 | ret = devm_request_threaded_irq(&client->dev, client->irq, | |
1060 | NULL, apds9960_interrupt_handler, | |
1061 | IRQF_TRIGGER_FALLING | IRQF_ONESHOT, | |
1062 | "apds9960_event", | |
1063 | indio_dev); | |
1064 | if (ret) { | |
1065 | dev_err(&client->dev, "request irq (%d) failed\n", client->irq); | |
1066 | goto error_power_down; | |
1067 | } | |
1068 | ||
1069 | ret = iio_device_register(indio_dev); | |
1070 | if (ret) | |
1071 | goto error_power_down; | |
1072 | ||
1073 | apds9960_set_power_state(data, false); | |
1074 | ||
1075 | return 0; | |
1076 | ||
1077 | error_power_down: | |
1078 | apds9960_set_power_state(data, false); | |
1079 | ||
1080 | return ret; | |
1081 | } | |
1082 | ||
1083 | static int apds9960_remove(struct i2c_client *client) | |
1084 | { | |
1085 | struct iio_dev *indio_dev = i2c_get_clientdata(client); | |
1086 | struct apds9960_data *data = iio_priv(indio_dev); | |
1087 | ||
1088 | iio_device_unregister(indio_dev); | |
1089 | pm_runtime_disable(&client->dev); | |
1090 | pm_runtime_set_suspended(&client->dev); | |
1091 | apds9960_set_powermode(data, 0); | |
1092 | ||
1093 | return 0; | |
1094 | } | |
1095 | ||
1096 | #ifdef CONFIG_PM | |
1097 | static int apds9960_runtime_suspend(struct device *dev) | |
1098 | { | |
1099 | struct apds9960_data *data = | |
1100 | iio_priv(i2c_get_clientdata(to_i2c_client(dev))); | |
1101 | ||
1102 | return apds9960_set_powermode(data, 0); | |
1103 | } | |
1104 | ||
1105 | static int apds9960_runtime_resume(struct device *dev) | |
1106 | { | |
1107 | struct apds9960_data *data = | |
1108 | iio_priv(i2c_get_clientdata(to_i2c_client(dev))); | |
1109 | ||
1110 | return apds9960_set_powermode(data, 1); | |
1111 | } | |
1112 | #endif | |
1113 | ||
1114 | static const struct dev_pm_ops apds9960_pm_ops = { | |
1115 | SET_RUNTIME_PM_OPS(apds9960_runtime_suspend, | |
1116 | apds9960_runtime_resume, NULL) | |
1117 | }; | |
1118 | ||
1119 | static const struct i2c_device_id apds9960_id[] = { | |
1120 | { "apds9960", 0 }, | |
1121 | {} | |
1122 | }; | |
1123 | MODULE_DEVICE_TABLE(i2c, apds9960_id); | |
1124 | ||
1125 | static struct i2c_driver apds9960_driver = { | |
1126 | .driver = { | |
1127 | .name = APDS9960_DRV_NAME, | |
1128 | .pm = &apds9960_pm_ops, | |
aff268cd MR |
1129 | }, |
1130 | .probe = apds9960_probe, | |
1131 | .remove = apds9960_remove, | |
1132 | .id_table = apds9960_id, | |
1133 | }; | |
1134 | module_i2c_driver(apds9960_driver); | |
1135 | ||
1136 | MODULE_AUTHOR("Matt Ranostay <mranostay@gmail.com>"); | |
1137 | MODULE_DESCRIPTION("ADPS9960 Gesture/RGB/ALS/Proximity sensor"); | |
1138 | MODULE_LICENSE("GPL"); |