Commit | Line | Data |
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d2912cb1 | 1 | // SPDX-License-Identifier: GPL-2.0-only |
078abcf9 RP |
2 | /* |
3 | * Battery and Power Management code for the Sharp SL-C7xx and SL-Cxx00 | |
4 | * series of PDAs | |
5 | * | |
6 | * Copyright (c) 2004-2005 Richard Purdie | |
7 | * | |
8 | * Based on code written by Sharp for 2.4 kernels | |
078abcf9 RP |
9 | */ |
10 | ||
11 | #undef DEBUG | |
12 | ||
13 | #include <linux/module.h> | |
078abcf9 | 14 | #include <linux/kernel.h> |
078abcf9 | 15 | #include <linux/interrupt.h> |
c5e1ae97 | 16 | #include <linux/platform_device.h> |
61fde514 | 17 | #include <linux/apm-emulation.h> |
78731d33 | 18 | #include <linux/timer.h> |
78731d33 DES |
19 | #include <linux/delay.h> |
20 | #include <linux/leds.h> | |
21 | #include <linux/suspend.h> | |
d5af2778 | 22 | #include <linux/gpio.h> |
23019a73 | 23 | #include <linux/io.h> |
078abcf9 | 24 | |
078abcf9 | 25 | #include <asm/mach-types.h> |
4c25c5d2 | 26 | #include "pm.h" |
78731d33 | 27 | #include <mach/pxa2xx-regs.h> |
4c25c5d2 AB |
28 | #include "regs-rtc.h" |
29 | #include "sharpsl_pm.h" | |
78731d33 DES |
30 | |
31 | /* | |
32 | * Constants | |
33 | */ | |
34 | #define SHARPSL_CHARGE_ON_TIME_INTERVAL (msecs_to_jiffies(1*60*1000)) /* 1 min */ | |
35 | #define SHARPSL_CHARGE_FINISH_TIME (msecs_to_jiffies(10*60*1000)) /* 10 min */ | |
36 | #define SHARPSL_BATCHK_TIME (msecs_to_jiffies(15*1000)) /* 15 sec */ | |
37 | #define SHARPSL_BATCHK_TIME_SUSPEND (60*10) /* 10 min */ | |
38 | ||
39 | #define SHARPSL_WAIT_CO_TIME 15 /* 15 sec */ | |
40 | #define SHARPSL_WAIT_DISCHARGE_ON 100 /* 100 msec */ | |
41 | #define SHARPSL_CHECK_BATTERY_WAIT_TIME_TEMP 10 /* 10 msec */ | |
42 | #define SHARPSL_CHECK_BATTERY_WAIT_TIME_VOLT 10 /* 10 msec */ | |
43 | #define SHARPSL_CHECK_BATTERY_WAIT_TIME_ACIN 10 /* 10 msec */ | |
44 | #define SHARPSL_CHARGE_WAIT_TIME 15 /* 15 msec */ | |
45 | #define SHARPSL_CHARGE_CO_CHECK_TIME 5 /* 5 msec */ | |
46 | #define SHARPSL_CHARGE_RETRY_CNT 1 /* eqv. 10 min */ | |
47 | ||
48 | /* | |
49 | * Prototypes | |
50 | */ | |
51 | #ifdef CONFIG_PM | |
52 | static int sharpsl_off_charge_battery(void); | |
53 | static int sharpsl_check_battery_voltage(void); | |
78731d33 DES |
54 | #endif |
55 | static int sharpsl_check_battery_temp(void); | |
56 | static int sharpsl_ac_check(void); | |
57 | static int sharpsl_average_value(int ad); | |
58 | static void sharpsl_average_clear(void); | |
59 | static void sharpsl_charge_toggle(struct work_struct *private_); | |
60 | static void sharpsl_battery_thread(struct work_struct *private_); | |
61 | ||
62 | ||
63 | /* | |
64 | * Variables | |
65 | */ | |
66 | struct sharpsl_pm_status sharpsl_pm; | |
d48898a3 DES |
67 | static DECLARE_DELAYED_WORK(toggle_charger, sharpsl_charge_toggle); |
68 | static DECLARE_DELAYED_WORK(sharpsl_bat, sharpsl_battery_thread); | |
78731d33 DES |
69 | DEFINE_LED_TRIGGER(sharpsl_charge_led_trigger); |
70 | ||
71 | ||
078abcf9 | 72 | |
0ba01ebc | 73 | struct battery_thresh sharpsl_battery_levels_acin[] = { |
078abcf9 RP |
74 | { 213, 100}, |
75 | { 212, 98}, | |
76 | { 211, 95}, | |
77 | { 210, 93}, | |
78 | { 209, 90}, | |
79 | { 208, 88}, | |
80 | { 207, 85}, | |
81 | { 206, 83}, | |
82 | { 205, 80}, | |
83 | { 204, 78}, | |
84 | { 203, 75}, | |
85 | { 202, 73}, | |
86 | { 201, 70}, | |
87 | { 200, 68}, | |
88 | { 199, 65}, | |
89 | { 198, 63}, | |
90 | { 197, 60}, | |
91 | { 196, 58}, | |
92 | { 195, 55}, | |
93 | { 194, 53}, | |
94 | { 193, 50}, | |
95 | { 192, 48}, | |
96 | { 192, 45}, | |
97 | { 191, 43}, | |
98 | { 191, 40}, | |
99 | { 190, 38}, | |
100 | { 190, 35}, | |
101 | { 189, 33}, | |
102 | { 188, 30}, | |
103 | { 187, 28}, | |
104 | { 186, 25}, | |
105 | { 185, 23}, | |
106 | { 184, 20}, | |
107 | { 183, 18}, | |
108 | { 182, 15}, | |
109 | { 181, 13}, | |
110 | { 180, 10}, | |
111 | { 179, 8}, | |
112 | { 178, 5}, | |
113 | { 0, 0}, | |
114 | }; | |
115 | ||
0ba01ebc | 116 | struct battery_thresh sharpsl_battery_levels_noac[] = { |
078abcf9 RP |
117 | { 213, 100}, |
118 | { 212, 98}, | |
119 | { 211, 95}, | |
120 | { 210, 93}, | |
121 | { 209, 90}, | |
122 | { 208, 88}, | |
123 | { 207, 85}, | |
124 | { 206, 83}, | |
125 | { 205, 80}, | |
126 | { 204, 78}, | |
127 | { 203, 75}, | |
128 | { 202, 73}, | |
129 | { 201, 70}, | |
130 | { 200, 68}, | |
131 | { 199, 65}, | |
132 | { 198, 63}, | |
133 | { 197, 60}, | |
134 | { 196, 58}, | |
135 | { 195, 55}, | |
136 | { 194, 53}, | |
137 | { 193, 50}, | |
138 | { 192, 48}, | |
139 | { 191, 45}, | |
140 | { 190, 43}, | |
141 | { 189, 40}, | |
142 | { 188, 38}, | |
143 | { 187, 35}, | |
144 | { 186, 33}, | |
145 | { 185, 30}, | |
146 | { 184, 28}, | |
147 | { 183, 25}, | |
148 | { 182, 23}, | |
149 | { 181, 20}, | |
150 | { 180, 18}, | |
151 | { 179, 15}, | |
152 | { 178, 13}, | |
153 | { 177, 10}, | |
154 | { 176, 8}, | |
155 | { 175, 5}, | |
156 | { 0, 0}, | |
157 | }; | |
158 | ||
25af3b0f | 159 | /* MAX1111 Commands */ |
b64b0b76 PM |
160 | #define MAXCTRL_PD0 (1u << 0) |
161 | #define MAXCTRL_PD1 (1u << 1) | |
162 | #define MAXCTRL_SGL (1u << 2) | |
163 | #define MAXCTRL_UNI (1u << 3) | |
25af3b0f | 164 | #define MAXCTRL_SEL_SH 4 |
b64b0b76 | 165 | #define MAXCTRL_STR (1u << 7) |
25af3b0f | 166 | |
438d7dc2 | 167 | extern int max1111_read_channel(int); |
078abcf9 RP |
168 | /* |
169 | * Read MAX1111 ADC | |
170 | */ | |
b7557de4 | 171 | int sharpsl_pm_pxa_read_max1111(int channel) |
078abcf9 | 172 | { |
b64b0b76 PM |
173 | /* Ugly, better move this function into another module */ |
174 | if (machine_is_tosa()) | |
f8703dc8 RP |
175 | return 0; |
176 | ||
f16177c2 EM |
177 | /* max1111 accepts channels from 0-3, however, |
178 | * it is encoded from 0-7 here in the code. | |
179 | */ | |
180 | return max1111_read_channel(channel >> 1); | |
078abcf9 RP |
181 | } |
182 | ||
78731d33 DES |
183 | static int get_percentage(int voltage) |
184 | { | |
185 | int i = sharpsl_pm.machinfo->bat_levels - 1; | |
186 | int bl_status = sharpsl_pm.machinfo->backlight_get_status ? sharpsl_pm.machinfo->backlight_get_status() : 0; | |
187 | struct battery_thresh *thresh; | |
188 | ||
189 | if (sharpsl_pm.charge_mode == CHRG_ON) | |
190 | thresh = bl_status ? sharpsl_pm.machinfo->bat_levels_acin_bl : sharpsl_pm.machinfo->bat_levels_acin; | |
191 | else | |
192 | thresh = bl_status ? sharpsl_pm.machinfo->bat_levels_noac_bl : sharpsl_pm.machinfo->bat_levels_noac; | |
193 | ||
194 | while (i > 0 && (voltage > thresh[i].voltage)) | |
195 | i--; | |
196 | ||
197 | return thresh[i].percentage; | |
198 | } | |
199 | ||
200 | static int get_apm_status(int voltage) | |
201 | { | |
202 | int low_thresh, high_thresh; | |
203 | ||
204 | if (sharpsl_pm.charge_mode == CHRG_ON) { | |
205 | high_thresh = sharpsl_pm.machinfo->status_high_acin; | |
206 | low_thresh = sharpsl_pm.machinfo->status_low_acin; | |
207 | } else { | |
208 | high_thresh = sharpsl_pm.machinfo->status_high_noac; | |
209 | low_thresh = sharpsl_pm.machinfo->status_low_noac; | |
210 | } | |
211 | ||
212 | if (voltage >= high_thresh) | |
213 | return APM_BATTERY_STATUS_HIGH; | |
214 | if (voltage >= low_thresh) | |
215 | return APM_BATTERY_STATUS_LOW; | |
216 | return APM_BATTERY_STATUS_CRITICAL; | |
217 | } | |
218 | ||
219 | void sharpsl_battery_kick(void) | |
220 | { | |
221 | schedule_delayed_work(&sharpsl_bat, msecs_to_jiffies(125)); | |
222 | } | |
223 | EXPORT_SYMBOL(sharpsl_battery_kick); | |
224 | ||
225 | ||
226 | static void sharpsl_battery_thread(struct work_struct *private_) | |
227 | { | |
b64b0b76 | 228 | int voltage, percent, apm_status, i; |
78731d33 DES |
229 | |
230 | if (!sharpsl_pm.machinfo) | |
231 | return; | |
232 | ||
233 | sharpsl_pm.battstat.ac_status = (sharpsl_pm.machinfo->read_devdata(SHARPSL_STATUS_ACIN) ? APM_AC_ONLINE : APM_AC_OFFLINE); | |
234 | ||
235 | /* Corgi cannot confirm when battery fully charged so periodically kick! */ | |
236 | if (!sharpsl_pm.machinfo->batfull_irq && (sharpsl_pm.charge_mode == CHRG_ON) | |
237 | && time_after(jiffies, sharpsl_pm.charge_start_time + SHARPSL_CHARGE_ON_TIME_INTERVAL)) | |
238 | schedule_delayed_work(&toggle_charger, 0); | |
239 | ||
b64b0b76 | 240 | for (i = 0; i < 5; i++) { |
78731d33 | 241 | voltage = sharpsl_pm.machinfo->read_devdata(SHARPSL_BATT_VOLT); |
b64b0b76 | 242 | if (voltage > 0) |
78731d33 | 243 | break; |
b64b0b76 PM |
244 | } |
245 | if (voltage <= 0) { | |
246 | voltage = sharpsl_pm.machinfo->bat_levels_noac[0].voltage; | |
247 | dev_warn(sharpsl_pm.dev, "Warning: Cannot read main battery!\n"); | |
78731d33 DES |
248 | } |
249 | ||
250 | voltage = sharpsl_average_value(voltage); | |
251 | apm_status = get_apm_status(voltage); | |
252 | percent = get_percentage(voltage); | |
253 | ||
254 | /* At low battery voltages, the voltage has a tendency to start | |
b64b0b76 PM |
255 | creeping back up so we try to avoid this here */ |
256 | if ((sharpsl_pm.battstat.ac_status == APM_AC_ONLINE) | |
257 | || (apm_status == APM_BATTERY_STATUS_HIGH) | |
258 | || percent <= sharpsl_pm.battstat.mainbat_percent) { | |
78731d33 DES |
259 | sharpsl_pm.battstat.mainbat_voltage = voltage; |
260 | sharpsl_pm.battstat.mainbat_status = apm_status; | |
261 | sharpsl_pm.battstat.mainbat_percent = percent; | |
262 | } | |
263 | ||
264 | dev_dbg(sharpsl_pm.dev, "Battery: voltage: %d, status: %d, percentage: %d, time: %ld\n", voltage, | |
265 | sharpsl_pm.battstat.mainbat_status, sharpsl_pm.battstat.mainbat_percent, jiffies); | |
266 | ||
78731d33 DES |
267 | /* Suspend if critical battery level */ |
268 | if ((sharpsl_pm.battstat.ac_status != APM_AC_ONLINE) | |
b64b0b76 PM |
269 | && (sharpsl_pm.battstat.mainbat_status == APM_BATTERY_STATUS_CRITICAL) |
270 | && !(sharpsl_pm.flags & SHARPSL_APM_QUEUED)) { | |
78731d33 DES |
271 | sharpsl_pm.flags |= SHARPSL_APM_QUEUED; |
272 | dev_err(sharpsl_pm.dev, "Fatal Off\n"); | |
273 | apm_queue_event(APM_CRITICAL_SUSPEND); | |
274 | } | |
275 | ||
276 | schedule_delayed_work(&sharpsl_bat, SHARPSL_BATCHK_TIME); | |
277 | } | |
278 | ||
279 | void sharpsl_pm_led(int val) | |
280 | { | |
281 | if (val == SHARPSL_LED_ERROR) { | |
282 | dev_err(sharpsl_pm.dev, "Charging Error!\n"); | |
283 | } else if (val == SHARPSL_LED_ON) { | |
284 | dev_dbg(sharpsl_pm.dev, "Charge LED On\n"); | |
285 | led_trigger_event(sharpsl_charge_led_trigger, LED_FULL); | |
286 | } else { | |
287 | dev_dbg(sharpsl_pm.dev, "Charge LED Off\n"); | |
288 | led_trigger_event(sharpsl_charge_led_trigger, LED_OFF); | |
289 | } | |
290 | } | |
291 | ||
292 | static void sharpsl_charge_on(void) | |
293 | { | |
294 | dev_dbg(sharpsl_pm.dev, "Turning Charger On\n"); | |
295 | ||
296 | sharpsl_pm.full_count = 0; | |
297 | sharpsl_pm.charge_mode = CHRG_ON; | |
298 | schedule_delayed_work(&toggle_charger, msecs_to_jiffies(250)); | |
299 | schedule_delayed_work(&sharpsl_bat, msecs_to_jiffies(500)); | |
300 | } | |
301 | ||
302 | static void sharpsl_charge_off(void) | |
303 | { | |
304 | dev_dbg(sharpsl_pm.dev, "Turning Charger Off\n"); | |
305 | ||
306 | sharpsl_pm.machinfo->charge(0); | |
307 | sharpsl_pm_led(SHARPSL_LED_OFF); | |
308 | sharpsl_pm.charge_mode = CHRG_OFF; | |
309 | ||
310 | schedule_delayed_work(&sharpsl_bat, 0); | |
311 | } | |
312 | ||
313 | static void sharpsl_charge_error(void) | |
314 | { | |
315 | sharpsl_pm_led(SHARPSL_LED_ERROR); | |
316 | sharpsl_pm.machinfo->charge(0); | |
317 | sharpsl_pm.charge_mode = CHRG_ERROR; | |
318 | } | |
319 | ||
320 | static void sharpsl_charge_toggle(struct work_struct *private_) | |
321 | { | |
b64b0b76 | 322 | dev_dbg(sharpsl_pm.dev, "Toggling Charger at time: %lx\n", jiffies); |
78731d33 DES |
323 | |
324 | if (!sharpsl_pm.machinfo->read_devdata(SHARPSL_STATUS_ACIN)) { | |
325 | sharpsl_charge_off(); | |
326 | return; | |
327 | } else if ((sharpsl_check_battery_temp() < 0) || (sharpsl_ac_check() < 0)) { | |
328 | sharpsl_charge_error(); | |
329 | return; | |
330 | } | |
331 | ||
332 | sharpsl_pm_led(SHARPSL_LED_ON); | |
333 | sharpsl_pm.machinfo->charge(0); | |
334 | mdelay(SHARPSL_CHARGE_WAIT_TIME); | |
335 | sharpsl_pm.machinfo->charge(1); | |
336 | ||
337 | sharpsl_pm.charge_start_time = jiffies; | |
338 | } | |
339 | ||
96d13082 | 340 | static void sharpsl_ac_timer(struct timer_list *unused) |
78731d33 DES |
341 | { |
342 | int acin = sharpsl_pm.machinfo->read_devdata(SHARPSL_STATUS_ACIN); | |
343 | ||
b64b0b76 | 344 | dev_dbg(sharpsl_pm.dev, "AC Status: %d\n", acin); |
78731d33 DES |
345 | |
346 | sharpsl_average_clear(); | |
347 | if (acin && (sharpsl_pm.charge_mode != CHRG_ON)) | |
348 | sharpsl_charge_on(); | |
349 | else if (sharpsl_pm.charge_mode == CHRG_ON) | |
350 | sharpsl_charge_off(); | |
351 | ||
352 | schedule_delayed_work(&sharpsl_bat, 0); | |
353 | } | |
354 | ||
355 | ||
d48898a3 | 356 | static irqreturn_t sharpsl_ac_isr(int irq, void *dev_id) |
78731d33 DES |
357 | { |
358 | /* Delay the event slightly to debounce */ | |
359 | /* Must be a smaller delay than the chrg_full_isr below */ | |
360 | mod_timer(&sharpsl_pm.ac_timer, jiffies + msecs_to_jiffies(250)); | |
361 | ||
362 | return IRQ_HANDLED; | |
363 | } | |
364 | ||
96d13082 | 365 | static void sharpsl_chrg_full_timer(struct timer_list *unused) |
78731d33 DES |
366 | { |
367 | dev_dbg(sharpsl_pm.dev, "Charge Full at time: %lx\n", jiffies); | |
368 | ||
369 | sharpsl_pm.full_count++; | |
370 | ||
371 | if (!sharpsl_pm.machinfo->read_devdata(SHARPSL_STATUS_ACIN)) { | |
372 | dev_dbg(sharpsl_pm.dev, "Charge Full: AC removed - stop charging!\n"); | |
373 | if (sharpsl_pm.charge_mode == CHRG_ON) | |
374 | sharpsl_charge_off(); | |
375 | } else if (sharpsl_pm.full_count < 2) { | |
376 | dev_dbg(sharpsl_pm.dev, "Charge Full: Count too low\n"); | |
377 | schedule_delayed_work(&toggle_charger, 0); | |
378 | } else if (time_after(jiffies, sharpsl_pm.charge_start_time + SHARPSL_CHARGE_FINISH_TIME)) { | |
379 | dev_dbg(sharpsl_pm.dev, "Charge Full: Interrupt generated too slowly - retry.\n"); | |
380 | schedule_delayed_work(&toggle_charger, 0); | |
381 | } else { | |
382 | sharpsl_charge_off(); | |
383 | sharpsl_pm.charge_mode = CHRG_DONE; | |
384 | dev_dbg(sharpsl_pm.dev, "Charge Full: Charging Finished\n"); | |
385 | } | |
386 | } | |
387 | ||
388 | /* Charging Finished Interrupt (Not present on Corgi) */ | |
389 | /* Can trigger at the same time as an AC status change so | |
390 | delay until after that has been processed */ | |
d48898a3 | 391 | static irqreturn_t sharpsl_chrg_full_isr(int irq, void *dev_id) |
78731d33 DES |
392 | { |
393 | if (sharpsl_pm.flags & SHARPSL_SUSPENDED) | |
394 | return IRQ_HANDLED; | |
395 | ||
396 | /* delay until after any ac interrupt */ | |
397 | mod_timer(&sharpsl_pm.chrg_full_timer, jiffies + msecs_to_jiffies(500)); | |
398 | ||
399 | return IRQ_HANDLED; | |
400 | } | |
401 | ||
d48898a3 | 402 | static irqreturn_t sharpsl_fatal_isr(int irq, void *dev_id) |
78731d33 DES |
403 | { |
404 | int is_fatal = 0; | |
405 | ||
406 | if (!sharpsl_pm.machinfo->read_devdata(SHARPSL_STATUS_LOCK)) { | |
407 | dev_err(sharpsl_pm.dev, "Battery now Unlocked! Suspending.\n"); | |
408 | is_fatal = 1; | |
409 | } | |
410 | ||
411 | if (!sharpsl_pm.machinfo->read_devdata(SHARPSL_STATUS_FATAL)) { | |
412 | dev_err(sharpsl_pm.dev, "Fatal Batt Error! Suspending.\n"); | |
413 | is_fatal = 1; | |
414 | } | |
415 | ||
416 | if (!(sharpsl_pm.flags & SHARPSL_APM_QUEUED) && is_fatal) { | |
417 | sharpsl_pm.flags |= SHARPSL_APM_QUEUED; | |
418 | apm_queue_event(APM_CRITICAL_SUSPEND); | |
419 | } | |
420 | ||
421 | return IRQ_HANDLED; | |
422 | } | |
423 | ||
424 | /* | |
425 | * Maintain an average of the last 10 readings | |
426 | */ | |
427 | #define SHARPSL_CNV_VALUE_NUM 10 | |
428 | static int sharpsl_ad_index; | |
429 | ||
430 | static void sharpsl_average_clear(void) | |
431 | { | |
432 | sharpsl_ad_index = 0; | |
433 | } | |
434 | ||
435 | static int sharpsl_average_value(int ad) | |
436 | { | |
437 | int i, ad_val = 0; | |
438 | static int sharpsl_ad[SHARPSL_CNV_VALUE_NUM+1]; | |
439 | ||
440 | if (sharpsl_pm.battstat.mainbat_status != APM_BATTERY_STATUS_HIGH) { | |
441 | sharpsl_ad_index = 0; | |
442 | return ad; | |
443 | } | |
444 | ||
445 | sharpsl_ad[sharpsl_ad_index] = ad; | |
446 | sharpsl_ad_index++; | |
447 | if (sharpsl_ad_index >= SHARPSL_CNV_VALUE_NUM) { | |
b64b0b76 | 448 | for (i = 0; i < (SHARPSL_CNV_VALUE_NUM-1); i++) |
78731d33 DES |
449 | sharpsl_ad[i] = sharpsl_ad[i+1]; |
450 | sharpsl_ad_index = SHARPSL_CNV_VALUE_NUM - 1; | |
451 | } | |
b64b0b76 | 452 | for (i = 0; i < sharpsl_ad_index; i++) |
78731d33 DES |
453 | ad_val += sharpsl_ad[i]; |
454 | ||
b64b0b76 | 455 | return ad_val / sharpsl_ad_index; |
78731d33 DES |
456 | } |
457 | ||
458 | /* | |
459 | * Take an array of 5 integers, remove the maximum and minimum values | |
460 | * and return the average. | |
461 | */ | |
462 | static int get_select_val(int *val) | |
463 | { | |
464 | int i, j, k, temp, sum = 0; | |
465 | ||
466 | /* Find MAX val */ | |
467 | temp = val[0]; | |
b64b0b76 PM |
468 | j = 0; |
469 | for (i = 1; i < 5; i++) { | |
78731d33 DES |
470 | if (temp < val[i]) { |
471 | temp = val[i]; | |
472 | j = i; | |
473 | } | |
474 | } | |
475 | ||
476 | /* Find MIN val */ | |
477 | temp = val[4]; | |
b64b0b76 PM |
478 | k = 4; |
479 | for (i = 3; i >= 0; i--) { | |
78731d33 DES |
480 | if (temp > val[i]) { |
481 | temp = val[i]; | |
482 | k = i; | |
483 | } | |
484 | } | |
485 | ||
b64b0b76 PM |
486 | for (i = 0; i < 5; i++) |
487 | if (i != j && i != k) | |
78731d33 DES |
488 | sum += val[i]; |
489 | ||
490 | dev_dbg(sharpsl_pm.dev, "Average: %d from values: %d, %d, %d, %d, %d\n", sum/3, val[0], val[1], val[2], val[3], val[4]); | |
491 | ||
b64b0b76 | 492 | return sum/3; |
78731d33 DES |
493 | } |
494 | ||
495 | static int sharpsl_check_battery_temp(void) | |
496 | { | |
497 | int val, i, buff[5]; | |
498 | ||
499 | /* Check battery temperature */ | |
b64b0b76 | 500 | for (i = 0; i < 5; i++) { |
78731d33 DES |
501 | mdelay(SHARPSL_CHECK_BATTERY_WAIT_TIME_TEMP); |
502 | sharpsl_pm.machinfo->measure_temp(1); | |
503 | mdelay(SHARPSL_CHECK_BATTERY_WAIT_TIME_TEMP); | |
504 | buff[i] = sharpsl_pm.machinfo->read_devdata(SHARPSL_BATT_TEMP); | |
505 | sharpsl_pm.machinfo->measure_temp(0); | |
506 | } | |
507 | ||
508 | val = get_select_val(buff); | |
509 | ||
510 | dev_dbg(sharpsl_pm.dev, "Temperature: %d\n", val); | |
511 | if (val > sharpsl_pm.machinfo->charge_on_temp) { | |
512 | printk(KERN_WARNING "Not charging: temperature out of limits.\n"); | |
513 | return -1; | |
514 | } | |
515 | ||
516 | return 0; | |
517 | } | |
518 | ||
519 | #ifdef CONFIG_PM | |
520 | static int sharpsl_check_battery_voltage(void) | |
521 | { | |
522 | int val, i, buff[5]; | |
523 | ||
524 | /* disable charge, enable discharge */ | |
525 | sharpsl_pm.machinfo->charge(0); | |
526 | sharpsl_pm.machinfo->discharge(1); | |
527 | mdelay(SHARPSL_WAIT_DISCHARGE_ON); | |
528 | ||
529 | if (sharpsl_pm.machinfo->discharge1) | |
530 | sharpsl_pm.machinfo->discharge1(1); | |
531 | ||
532 | /* Check battery voltage */ | |
b64b0b76 | 533 | for (i = 0; i < 5; i++) { |
78731d33 DES |
534 | buff[i] = sharpsl_pm.machinfo->read_devdata(SHARPSL_BATT_VOLT); |
535 | mdelay(SHARPSL_CHECK_BATTERY_WAIT_TIME_VOLT); | |
536 | } | |
537 | ||
538 | if (sharpsl_pm.machinfo->discharge1) | |
539 | sharpsl_pm.machinfo->discharge1(0); | |
540 | ||
541 | sharpsl_pm.machinfo->discharge(0); | |
542 | ||
543 | val = get_select_val(buff); | |
544 | dev_dbg(sharpsl_pm.dev, "Battery Voltage: %d\n", val); | |
545 | ||
546 | if (val < sharpsl_pm.machinfo->charge_on_volt) | |
547 | return -1; | |
548 | ||
549 | return 0; | |
550 | } | |
551 | #endif | |
552 | ||
553 | static int sharpsl_ac_check(void) | |
554 | { | |
555 | int temp, i, buff[5]; | |
556 | ||
b64b0b76 | 557 | for (i = 0; i < 5; i++) { |
78731d33 DES |
558 | buff[i] = sharpsl_pm.machinfo->read_devdata(SHARPSL_ACIN_VOLT); |
559 | mdelay(SHARPSL_CHECK_BATTERY_WAIT_TIME_ACIN); | |
560 | } | |
561 | ||
562 | temp = get_select_val(buff); | |
b64b0b76 | 563 | dev_dbg(sharpsl_pm.dev, "AC Voltage: %d\n", temp); |
78731d33 DES |
564 | |
565 | if ((temp > sharpsl_pm.machinfo->charge_acin_high) || (temp < sharpsl_pm.machinfo->charge_acin_low)) { | |
b64b0b76 | 566 | dev_err(sharpsl_pm.dev, "Error: AC check failed: voltage %d.\n", temp); |
78731d33 DES |
567 | return -1; |
568 | } | |
569 | ||
570 | return 0; | |
571 | } | |
572 | ||
573 | #ifdef CONFIG_PM | |
574 | static int sharpsl_pm_suspend(struct platform_device *pdev, pm_message_t state) | |
575 | { | |
576 | sharpsl_pm.flags |= SHARPSL_SUSPENDED; | |
43829731 TH |
577 | flush_delayed_work(&toggle_charger); |
578 | flush_delayed_work(&sharpsl_bat); | |
78731d33 DES |
579 | |
580 | if (sharpsl_pm.charge_mode == CHRG_ON) | |
581 | sharpsl_pm.flags |= SHARPSL_DO_OFFLINE_CHRG; | |
582 | else | |
583 | sharpsl_pm.flags &= ~SHARPSL_DO_OFFLINE_CHRG; | |
584 | ||
585 | return 0; | |
586 | } | |
587 | ||
588 | static int sharpsl_pm_resume(struct platform_device *pdev) | |
589 | { | |
590 | /* Clear the reset source indicators as they break the bootloader upon reboot */ | |
591 | RCSR = 0x0f; | |
592 | sharpsl_average_clear(); | |
593 | sharpsl_pm.flags &= ~SHARPSL_APM_QUEUED; | |
594 | sharpsl_pm.flags &= ~SHARPSL_SUSPENDED; | |
595 | ||
596 | return 0; | |
597 | } | |
598 | ||
599 | static void corgi_goto_sleep(unsigned long alarm_time, unsigned int alarm_enable, suspend_state_t state) | |
600 | { | |
b64b0b76 | 601 | dev_dbg(sharpsl_pm.dev, "Time is: %08x\n", RCNR); |
78731d33 | 602 | |
b64b0b76 | 603 | dev_dbg(sharpsl_pm.dev, "Offline Charge Activate = %d\n", sharpsl_pm.flags & SHARPSL_DO_OFFLINE_CHRG); |
78731d33 DES |
604 | /* not charging and AC-IN! */ |
605 | ||
606 | if ((sharpsl_pm.flags & SHARPSL_DO_OFFLINE_CHRG) && (sharpsl_pm.machinfo->read_devdata(SHARPSL_STATUS_ACIN))) { | |
607 | dev_dbg(sharpsl_pm.dev, "Activating Offline Charger...\n"); | |
608 | sharpsl_pm.charge_mode = CHRG_OFF; | |
609 | sharpsl_pm.flags &= ~SHARPSL_DO_OFFLINE_CHRG; | |
610 | sharpsl_off_charge_battery(); | |
611 | } | |
612 | ||
613 | sharpsl_pm.machinfo->presuspend(); | |
614 | ||
615 | PEDR = 0xffffffff; /* clear it */ | |
616 | ||
617 | sharpsl_pm.flags &= ~SHARPSL_ALARM_ACTIVE; | |
618 | if ((sharpsl_pm.charge_mode == CHRG_ON) && ((alarm_enable && ((alarm_time - RCNR) > (SHARPSL_BATCHK_TIME_SUSPEND + 30))) || !alarm_enable)) { | |
619 | RTSR &= RTSR_ALE; | |
620 | RTAR = RCNR + SHARPSL_BATCHK_TIME_SUSPEND; | |
b64b0b76 | 621 | dev_dbg(sharpsl_pm.dev, "Charging alarm at: %08x\n", RTAR); |
78731d33 DES |
622 | sharpsl_pm.flags |= SHARPSL_ALARM_ACTIVE; |
623 | } else if (alarm_enable) { | |
624 | RTSR &= RTSR_ALE; | |
625 | RTAR = alarm_time; | |
b64b0b76 | 626 | dev_dbg(sharpsl_pm.dev, "User alarm at: %08x\n", RTAR); |
78731d33 DES |
627 | } else { |
628 | dev_dbg(sharpsl_pm.dev, "No alarms set.\n"); | |
629 | } | |
630 | ||
631 | pxa_pm_enter(state); | |
632 | ||
633 | sharpsl_pm.machinfo->postsuspend(); | |
634 | ||
b64b0b76 | 635 | dev_dbg(sharpsl_pm.dev, "Corgi woken up from suspend: %08x\n", PEDR); |
78731d33 DES |
636 | } |
637 | ||
638 | static int corgi_enter_suspend(unsigned long alarm_time, unsigned int alarm_enable, suspend_state_t state) | |
639 | { | |
b64b0b76 | 640 | if (!sharpsl_pm.machinfo->should_wakeup(!(sharpsl_pm.flags & SHARPSL_ALARM_ACTIVE) && alarm_enable)) { |
78731d33 DES |
641 | if (!(sharpsl_pm.flags & SHARPSL_ALARM_ACTIVE)) { |
642 | dev_dbg(sharpsl_pm.dev, "No user triggered wakeup events and not charging. Strange. Suspend.\n"); | |
643 | corgi_goto_sleep(alarm_time, alarm_enable, state); | |
644 | return 1; | |
645 | } | |
b64b0b76 | 646 | if (sharpsl_off_charge_battery()) { |
78731d33 DES |
647 | dev_dbg(sharpsl_pm.dev, "Charging. Suspend...\n"); |
648 | corgi_goto_sleep(alarm_time, alarm_enable, state); | |
649 | return 1; | |
650 | } | |
651 | dev_dbg(sharpsl_pm.dev, "User triggered wakeup in offline charger.\n"); | |
652 | } | |
653 | ||
99f329a2 PM |
654 | if ((!sharpsl_pm.machinfo->read_devdata(SHARPSL_STATUS_LOCK)) || |
655 | (!sharpsl_pm.machinfo->read_devdata(SHARPSL_STATUS_FATAL))) { | |
78731d33 DES |
656 | dev_err(sharpsl_pm.dev, "Fatal condition. Suspend.\n"); |
657 | corgi_goto_sleep(alarm_time, alarm_enable, state); | |
658 | return 1; | |
659 | } | |
660 | ||
661 | return 0; | |
662 | } | |
663 | ||
664 | static int corgi_pxa_pm_enter(suspend_state_t state) | |
665 | { | |
666 | unsigned long alarm_time = RTAR; | |
667 | unsigned int alarm_status = ((RTSR & RTSR_ALE) != 0); | |
668 | ||
669 | dev_dbg(sharpsl_pm.dev, "SharpSL suspending for first time.\n"); | |
670 | ||
671 | corgi_goto_sleep(alarm_time, alarm_status, state); | |
672 | ||
b64b0b76 | 673 | while (corgi_enter_suspend(alarm_time, alarm_status, state)) |
78731d33 DES |
674 | {} |
675 | ||
676 | if (sharpsl_pm.machinfo->earlyresume) | |
677 | sharpsl_pm.machinfo->earlyresume(); | |
678 | ||
679 | dev_dbg(sharpsl_pm.dev, "SharpSL resuming...\n"); | |
680 | ||
681 | return 0; | |
682 | } | |
683 | ||
78731d33 DES |
684 | static int sharpsl_off_charge_error(void) |
685 | { | |
686 | dev_err(sharpsl_pm.dev, "Offline Charger: Error occurred.\n"); | |
687 | sharpsl_pm.machinfo->charge(0); | |
688 | sharpsl_pm_led(SHARPSL_LED_ERROR); | |
689 | sharpsl_pm.charge_mode = CHRG_ERROR; | |
690 | return 1; | |
691 | } | |
692 | ||
693 | /* | |
694 | * Charging Control while suspended | |
695 | * Return 1 - go straight to sleep | |
696 | * Return 0 - sleep or wakeup depending on other factors | |
697 | */ | |
698 | static int sharpsl_off_charge_battery(void) | |
699 | { | |
700 | int time; | |
701 | ||
702 | dev_dbg(sharpsl_pm.dev, "Charge Mode: %d\n", sharpsl_pm.charge_mode); | |
703 | ||
704 | if (sharpsl_pm.charge_mode == CHRG_OFF) { | |
705 | dev_dbg(sharpsl_pm.dev, "Offline Charger: Step 1\n"); | |
706 | ||
707 | /* AC Check */ | |
708 | if ((sharpsl_ac_check() < 0) || (sharpsl_check_battery_temp() < 0)) | |
709 | return sharpsl_off_charge_error(); | |
710 | ||
711 | /* Start Charging */ | |
712 | sharpsl_pm_led(SHARPSL_LED_ON); | |
713 | sharpsl_pm.machinfo->charge(0); | |
714 | mdelay(SHARPSL_CHARGE_WAIT_TIME); | |
715 | sharpsl_pm.machinfo->charge(1); | |
716 | ||
717 | sharpsl_pm.charge_mode = CHRG_ON; | |
718 | sharpsl_pm.full_count = 0; | |
719 | ||
720 | return 1; | |
721 | } else if (sharpsl_pm.charge_mode != CHRG_ON) { | |
722 | return 1; | |
723 | } | |
724 | ||
725 | if (sharpsl_pm.full_count == 0) { | |
726 | int time; | |
727 | ||
728 | dev_dbg(sharpsl_pm.dev, "Offline Charger: Step 2\n"); | |
729 | ||
730 | if ((sharpsl_check_battery_temp() < 0) || (sharpsl_check_battery_voltage() < 0)) | |
731 | return sharpsl_off_charge_error(); | |
732 | ||
733 | sharpsl_pm.machinfo->charge(0); | |
734 | mdelay(SHARPSL_CHARGE_WAIT_TIME); | |
735 | sharpsl_pm.machinfo->charge(1); | |
736 | sharpsl_pm.charge_mode = CHRG_ON; | |
737 | ||
738 | mdelay(SHARPSL_CHARGE_CO_CHECK_TIME); | |
739 | ||
740 | time = RCNR; | |
b64b0b76 | 741 | while (1) { |
78731d33 | 742 | /* Check if any wakeup event had occurred */ |
ca26475b | 743 | if (sharpsl_pm.machinfo->charger_wakeup()) |
78731d33 DES |
744 | return 0; |
745 | /* Check for timeout */ | |
746 | if ((RCNR - time) > SHARPSL_WAIT_CO_TIME) | |
747 | return 1; | |
748 | if (sharpsl_pm.machinfo->read_devdata(SHARPSL_STATUS_CHRGFULL)) { | |
749 | dev_dbg(sharpsl_pm.dev, "Offline Charger: Charge full occurred. Retrying to check\n"); | |
750 | sharpsl_pm.full_count++; | |
751 | sharpsl_pm.machinfo->charge(0); | |
752 | mdelay(SHARPSL_CHARGE_WAIT_TIME); | |
753 | sharpsl_pm.machinfo->charge(1); | |
754 | return 1; | |
755 | } | |
756 | } | |
757 | } | |
758 | ||
759 | dev_dbg(sharpsl_pm.dev, "Offline Charger: Step 3\n"); | |
760 | ||
761 | mdelay(SHARPSL_CHARGE_CO_CHECK_TIME); | |
762 | ||
763 | time = RCNR; | |
b64b0b76 | 764 | while (1) { |
78731d33 | 765 | /* Check if any wakeup event had occurred */ |
b64b0b76 | 766 | if (sharpsl_pm.machinfo->charger_wakeup()) |
78731d33 DES |
767 | return 0; |
768 | /* Check for timeout */ | |
769 | if ((RCNR-time) > SHARPSL_WAIT_CO_TIME) { | |
770 | if (sharpsl_pm.full_count > SHARPSL_CHARGE_RETRY_CNT) { | |
771 | dev_dbg(sharpsl_pm.dev, "Offline Charger: Not charged sufficiently. Retrying.\n"); | |
772 | sharpsl_pm.full_count = 0; | |
773 | } | |
774 | sharpsl_pm.full_count++; | |
775 | return 1; | |
776 | } | |
777 | if (sharpsl_pm.machinfo->read_devdata(SHARPSL_STATUS_CHRGFULL)) { | |
778 | dev_dbg(sharpsl_pm.dev, "Offline Charger: Charging complete.\n"); | |
779 | sharpsl_pm_led(SHARPSL_LED_OFF); | |
780 | sharpsl_pm.machinfo->charge(0); | |
781 | sharpsl_pm.charge_mode = CHRG_DONE; | |
782 | return 1; | |
783 | } | |
784 | } | |
785 | } | |
786 | #else | |
787 | #define sharpsl_pm_suspend NULL | |
788 | #define sharpsl_pm_resume NULL | |
789 | #endif | |
790 | ||
791 | static ssize_t battery_percentage_show(struct device *dev, struct device_attribute *attr, char *buf) | |
792 | { | |
b64b0b76 | 793 | return sprintf(buf, "%d\n", sharpsl_pm.battstat.mainbat_percent); |
78731d33 DES |
794 | } |
795 | ||
796 | static ssize_t battery_voltage_show(struct device *dev, struct device_attribute *attr, char *buf) | |
797 | { | |
b64b0b76 | 798 | return sprintf(buf, "%d\n", sharpsl_pm.battstat.mainbat_voltage); |
78731d33 DES |
799 | } |
800 | ||
c828a892 JP |
801 | static DEVICE_ATTR_RO(battery_percentage); |
802 | static DEVICE_ATTR_RO(battery_voltage); | |
78731d33 DES |
803 | |
804 | extern void (*apm_get_power_status)(struct apm_power_info *); | |
805 | ||
806 | static void sharpsl_apm_get_power_status(struct apm_power_info *info) | |
807 | { | |
808 | info->ac_line_status = sharpsl_pm.battstat.ac_status; | |
809 | ||
810 | if (sharpsl_pm.charge_mode == CHRG_ON) | |
811 | info->battery_status = APM_BATTERY_STATUS_CHARGING; | |
812 | else | |
813 | info->battery_status = sharpsl_pm.battstat.mainbat_status; | |
814 | ||
815 | info->battery_flag = (1 << info->battery_status); | |
816 | info->battery_life = sharpsl_pm.battstat.mainbat_percent; | |
817 | } | |
818 | ||
819 | #ifdef CONFIG_PM | |
2f55ac07 | 820 | static const struct platform_suspend_ops sharpsl_pm_ops = { |
51cdd928 PM |
821 | .prepare = pxa_pm_prepare, |
822 | .finish = pxa_pm_finish, | |
78731d33 DES |
823 | .enter = corgi_pxa_pm_enter, |
824 | .valid = suspend_valid_only_mem, | |
825 | }; | |
826 | #endif | |
827 | ||
351a102d | 828 | static int sharpsl_pm_probe(struct platform_device *pdev) |
78731d33 | 829 | { |
74595e17 | 830 | int ret, irq; |
78731d33 DES |
831 | |
832 | if (!pdev->dev.platform_data) | |
833 | return -EINVAL; | |
834 | ||
835 | sharpsl_pm.dev = &pdev->dev; | |
836 | sharpsl_pm.machinfo = pdev->dev.platform_data; | |
837 | sharpsl_pm.charge_mode = CHRG_OFF; | |
838 | sharpsl_pm.flags = 0; | |
839 | ||
96d13082 | 840 | timer_setup(&sharpsl_pm.ac_timer, sharpsl_ac_timer, 0); |
78731d33 | 841 | |
96d13082 | 842 | timer_setup(&sharpsl_pm.chrg_full_timer, sharpsl_chrg_full_timer, 0); |
78731d33 DES |
843 | |
844 | led_trigger_register_simple("sharpsl-charge", &sharpsl_charge_led_trigger); | |
845 | ||
846 | sharpsl_pm.machinfo->init(); | |
847 | ||
d5af2778 DES |
848 | gpio_request(sharpsl_pm.machinfo->gpio_acin, "AC IN"); |
849 | gpio_direction_input(sharpsl_pm.machinfo->gpio_acin); | |
850 | gpio_request(sharpsl_pm.machinfo->gpio_batfull, "Battery Full"); | |
851 | gpio_direction_input(sharpsl_pm.machinfo->gpio_batfull); | |
852 | gpio_request(sharpsl_pm.machinfo->gpio_batlock, "Battery Lock"); | |
853 | gpio_direction_input(sharpsl_pm.machinfo->gpio_batlock); | |
d48898a3 DES |
854 | |
855 | /* Register interrupt handlers */ | |
74595e17 | 856 | irq = gpio_to_irq(sharpsl_pm.machinfo->gpio_acin); |
ed7936f9 | 857 | if (request_irq(irq, sharpsl_ac_isr, IRQF_TRIGGER_RISING | IRQF_TRIGGER_FALLING, "AC Input Detect", sharpsl_ac_isr)) { |
74595e17 | 858 | dev_err(sharpsl_pm.dev, "Could not get irq %d.\n", irq); |
d48898a3 | 859 | } |
d48898a3 | 860 | |
74595e17 | 861 | irq = gpio_to_irq(sharpsl_pm.machinfo->gpio_batlock); |
ed7936f9 | 862 | if (request_irq(irq, sharpsl_fatal_isr, IRQF_TRIGGER_FALLING, "Battery Cover", sharpsl_fatal_isr)) { |
74595e17 | 863 | dev_err(sharpsl_pm.dev, "Could not get irq %d.\n", irq); |
d48898a3 | 864 | } |
d48898a3 DES |
865 | |
866 | if (sharpsl_pm.machinfo->gpio_fatal) { | |
74595e17 | 867 | irq = gpio_to_irq(sharpsl_pm.machinfo->gpio_fatal); |
ed7936f9 | 868 | if (request_irq(irq, sharpsl_fatal_isr, IRQF_TRIGGER_FALLING, "Fatal Battery", sharpsl_fatal_isr)) { |
74595e17 | 869 | dev_err(sharpsl_pm.dev, "Could not get irq %d.\n", irq); |
d48898a3 | 870 | } |
d48898a3 DES |
871 | } |
872 | ||
b64b0b76 | 873 | if (sharpsl_pm.machinfo->batfull_irq) { |
d48898a3 | 874 | /* Register interrupt handler. */ |
74595e17 | 875 | irq = gpio_to_irq(sharpsl_pm.machinfo->gpio_batfull); |
ed7936f9 | 876 | if (request_irq(irq, sharpsl_chrg_full_isr, IRQF_TRIGGER_RISING, "CO", sharpsl_chrg_full_isr)) { |
74595e17 | 877 | dev_err(sharpsl_pm.dev, "Could not get irq %d.\n", irq); |
d48898a3 | 878 | } |
d48898a3 DES |
879 | } |
880 | ||
78731d33 DES |
881 | ret = device_create_file(&pdev->dev, &dev_attr_battery_percentage); |
882 | ret |= device_create_file(&pdev->dev, &dev_attr_battery_voltage); | |
883 | if (ret != 0) | |
884 | dev_warn(&pdev->dev, "Failed to register attributes (%d)\n", ret); | |
885 | ||
886 | apm_get_power_status = sharpsl_apm_get_power_status; | |
887 | ||
888 | #ifdef CONFIG_PM | |
889 | suspend_set_ops(&sharpsl_pm_ops); | |
890 | #endif | |
891 | ||
892 | mod_timer(&sharpsl_pm.ac_timer, jiffies + msecs_to_jiffies(250)); | |
893 | ||
894 | return 0; | |
895 | } | |
896 | ||
897 | static int sharpsl_pm_remove(struct platform_device *pdev) | |
898 | { | |
899 | suspend_set_ops(NULL); | |
900 | ||
901 | device_remove_file(&pdev->dev, &dev_attr_battery_percentage); | |
902 | device_remove_file(&pdev->dev, &dev_attr_battery_voltage); | |
903 | ||
904 | led_trigger_unregister_simple(sharpsl_charge_led_trigger); | |
905 | ||
74595e17 RH |
906 | free_irq(gpio_to_irq(sharpsl_pm.machinfo->gpio_acin), sharpsl_ac_isr); |
907 | free_irq(gpio_to_irq(sharpsl_pm.machinfo->gpio_batlock), sharpsl_fatal_isr); | |
d48898a3 DES |
908 | |
909 | if (sharpsl_pm.machinfo->gpio_fatal) | |
74595e17 | 910 | free_irq(gpio_to_irq(sharpsl_pm.machinfo->gpio_fatal), sharpsl_fatal_isr); |
d48898a3 DES |
911 | |
912 | if (sharpsl_pm.machinfo->batfull_irq) | |
74595e17 | 913 | free_irq(gpio_to_irq(sharpsl_pm.machinfo->gpio_batfull), sharpsl_chrg_full_isr); |
d48898a3 | 914 | |
d5af2778 DES |
915 | gpio_free(sharpsl_pm.machinfo->gpio_batlock); |
916 | gpio_free(sharpsl_pm.machinfo->gpio_batfull); | |
917 | gpio_free(sharpsl_pm.machinfo->gpio_acin); | |
918 | ||
d48898a3 DES |
919 | if (sharpsl_pm.machinfo->exit) |
920 | sharpsl_pm.machinfo->exit(); | |
78731d33 DES |
921 | |
922 | del_timer_sync(&sharpsl_pm.chrg_full_timer); | |
923 | del_timer_sync(&sharpsl_pm.ac_timer); | |
924 | ||
925 | return 0; | |
926 | } | |
927 | ||
928 | static struct platform_driver sharpsl_pm_driver = { | |
929 | .probe = sharpsl_pm_probe, | |
930 | .remove = sharpsl_pm_remove, | |
931 | .suspend = sharpsl_pm_suspend, | |
932 | .resume = sharpsl_pm_resume, | |
933 | .driver = { | |
934 | .name = "sharpsl-pm", | |
935 | }, | |
936 | }; | |
937 | ||
351a102d | 938 | static int sharpsl_pm_init(void) |
78731d33 DES |
939 | { |
940 | return platform_driver_register(&sharpsl_pm_driver); | |
941 | } | |
942 | ||
943 | static void sharpsl_pm_exit(void) | |
944 | { | |
945 | platform_driver_unregister(&sharpsl_pm_driver); | |
946 | } | |
947 | ||
948 | late_initcall(sharpsl_pm_init); | |
949 | module_exit(sharpsl_pm_exit); |