Commit | Line | Data |
---|---|---|
078abcf9 RP |
1 | /* |
2 | * Battery and Power Management code for the Sharp SL-C7xx and SL-Cxx00 | |
3 | * series of PDAs | |
4 | * | |
5 | * Copyright (c) 2004-2005 Richard Purdie | |
6 | * | |
7 | * Based on code written by Sharp for 2.4 kernels | |
8 | * | |
9 | * This program is free software; you can redistribute it and/or modify | |
10 | * it under the terms of the GNU General Public License version 2 as | |
11 | * published by the Free Software Foundation. | |
12 | * | |
13 | */ | |
14 | ||
15 | #undef DEBUG | |
16 | ||
17 | #include <linux/module.h> | |
078abcf9 | 18 | #include <linux/kernel.h> |
078abcf9 | 19 | #include <linux/interrupt.h> |
c5e1ae97 | 20 | #include <linux/platform_device.h> |
61fde514 | 21 | #include <linux/apm-emulation.h> |
78731d33 | 22 | #include <linux/timer.h> |
78731d33 DES |
23 | #include <linux/delay.h> |
24 | #include <linux/leds.h> | |
25 | #include <linux/suspend.h> | |
d5af2778 | 26 | #include <linux/gpio.h> |
23019a73 | 27 | #include <linux/io.h> |
078abcf9 | 28 | |
078abcf9 | 29 | #include <asm/mach-types.h> |
a09e64fb | 30 | #include <mach/pm.h> |
78731d33 | 31 | #include <mach/pxa2xx-regs.h> |
78731d33 | 32 | #include <mach/regs-rtc.h> |
78731d33 DES |
33 | #include <mach/sharpsl_pm.h> |
34 | ||
35 | /* | |
36 | * Constants | |
37 | */ | |
38 | #define SHARPSL_CHARGE_ON_TIME_INTERVAL (msecs_to_jiffies(1*60*1000)) /* 1 min */ | |
39 | #define SHARPSL_CHARGE_FINISH_TIME (msecs_to_jiffies(10*60*1000)) /* 10 min */ | |
40 | #define SHARPSL_BATCHK_TIME (msecs_to_jiffies(15*1000)) /* 15 sec */ | |
41 | #define SHARPSL_BATCHK_TIME_SUSPEND (60*10) /* 10 min */ | |
42 | ||
43 | #define SHARPSL_WAIT_CO_TIME 15 /* 15 sec */ | |
44 | #define SHARPSL_WAIT_DISCHARGE_ON 100 /* 100 msec */ | |
45 | #define SHARPSL_CHECK_BATTERY_WAIT_TIME_TEMP 10 /* 10 msec */ | |
46 | #define SHARPSL_CHECK_BATTERY_WAIT_TIME_VOLT 10 /* 10 msec */ | |
47 | #define SHARPSL_CHECK_BATTERY_WAIT_TIME_ACIN 10 /* 10 msec */ | |
48 | #define SHARPSL_CHARGE_WAIT_TIME 15 /* 15 msec */ | |
49 | #define SHARPSL_CHARGE_CO_CHECK_TIME 5 /* 5 msec */ | |
50 | #define SHARPSL_CHARGE_RETRY_CNT 1 /* eqv. 10 min */ | |
51 | ||
52 | /* | |
53 | * Prototypes | |
54 | */ | |
55 | #ifdef CONFIG_PM | |
56 | static int sharpsl_off_charge_battery(void); | |
57 | static int sharpsl_check_battery_voltage(void); | |
78731d33 DES |
58 | #endif |
59 | static int sharpsl_check_battery_temp(void); | |
60 | static int sharpsl_ac_check(void); | |
61 | static int sharpsl_average_value(int ad); | |
62 | static void sharpsl_average_clear(void); | |
63 | static void sharpsl_charge_toggle(struct work_struct *private_); | |
64 | static void sharpsl_battery_thread(struct work_struct *private_); | |
65 | ||
66 | ||
67 | /* | |
68 | * Variables | |
69 | */ | |
70 | struct sharpsl_pm_status sharpsl_pm; | |
d48898a3 DES |
71 | static DECLARE_DELAYED_WORK(toggle_charger, sharpsl_charge_toggle); |
72 | static DECLARE_DELAYED_WORK(sharpsl_bat, sharpsl_battery_thread); | |
78731d33 DES |
73 | DEFINE_LED_TRIGGER(sharpsl_charge_led_trigger); |
74 | ||
75 | ||
078abcf9 | 76 | |
0ba01ebc | 77 | struct battery_thresh sharpsl_battery_levels_acin[] = { |
078abcf9 RP |
78 | { 213, 100}, |
79 | { 212, 98}, | |
80 | { 211, 95}, | |
81 | { 210, 93}, | |
82 | { 209, 90}, | |
83 | { 208, 88}, | |
84 | { 207, 85}, | |
85 | { 206, 83}, | |
86 | { 205, 80}, | |
87 | { 204, 78}, | |
88 | { 203, 75}, | |
89 | { 202, 73}, | |
90 | { 201, 70}, | |
91 | { 200, 68}, | |
92 | { 199, 65}, | |
93 | { 198, 63}, | |
94 | { 197, 60}, | |
95 | { 196, 58}, | |
96 | { 195, 55}, | |
97 | { 194, 53}, | |
98 | { 193, 50}, | |
99 | { 192, 48}, | |
100 | { 192, 45}, | |
101 | { 191, 43}, | |
102 | { 191, 40}, | |
103 | { 190, 38}, | |
104 | { 190, 35}, | |
105 | { 189, 33}, | |
106 | { 188, 30}, | |
107 | { 187, 28}, | |
108 | { 186, 25}, | |
109 | { 185, 23}, | |
110 | { 184, 20}, | |
111 | { 183, 18}, | |
112 | { 182, 15}, | |
113 | { 181, 13}, | |
114 | { 180, 10}, | |
115 | { 179, 8}, | |
116 | { 178, 5}, | |
117 | { 0, 0}, | |
118 | }; | |
119 | ||
0ba01ebc | 120 | struct battery_thresh sharpsl_battery_levels_noac[] = { |
078abcf9 RP |
121 | { 213, 100}, |
122 | { 212, 98}, | |
123 | { 211, 95}, | |
124 | { 210, 93}, | |
125 | { 209, 90}, | |
126 | { 208, 88}, | |
127 | { 207, 85}, | |
128 | { 206, 83}, | |
129 | { 205, 80}, | |
130 | { 204, 78}, | |
131 | { 203, 75}, | |
132 | { 202, 73}, | |
133 | { 201, 70}, | |
134 | { 200, 68}, | |
135 | { 199, 65}, | |
136 | { 198, 63}, | |
137 | { 197, 60}, | |
138 | { 196, 58}, | |
139 | { 195, 55}, | |
140 | { 194, 53}, | |
141 | { 193, 50}, | |
142 | { 192, 48}, | |
143 | { 191, 45}, | |
144 | { 190, 43}, | |
145 | { 189, 40}, | |
146 | { 188, 38}, | |
147 | { 187, 35}, | |
148 | { 186, 33}, | |
149 | { 185, 30}, | |
150 | { 184, 28}, | |
151 | { 183, 25}, | |
152 | { 182, 23}, | |
153 | { 181, 20}, | |
154 | { 180, 18}, | |
155 | { 179, 15}, | |
156 | { 178, 13}, | |
157 | { 177, 10}, | |
158 | { 176, 8}, | |
159 | { 175, 5}, | |
160 | { 0, 0}, | |
161 | }; | |
162 | ||
25af3b0f | 163 | /* MAX1111 Commands */ |
b64b0b76 PM |
164 | #define MAXCTRL_PD0 (1u << 0) |
165 | #define MAXCTRL_PD1 (1u << 1) | |
166 | #define MAXCTRL_SGL (1u << 2) | |
167 | #define MAXCTRL_UNI (1u << 3) | |
25af3b0f | 168 | #define MAXCTRL_SEL_SH 4 |
b64b0b76 | 169 | #define MAXCTRL_STR (1u << 7) |
25af3b0f | 170 | |
438d7dc2 | 171 | extern int max1111_read_channel(int); |
078abcf9 RP |
172 | /* |
173 | * Read MAX1111 ADC | |
174 | */ | |
b7557de4 | 175 | int sharpsl_pm_pxa_read_max1111(int channel) |
078abcf9 | 176 | { |
b64b0b76 PM |
177 | /* Ugly, better move this function into another module */ |
178 | if (machine_is_tosa()) | |
f8703dc8 RP |
179 | return 0; |
180 | ||
f16177c2 EM |
181 | /* max1111 accepts channels from 0-3, however, |
182 | * it is encoded from 0-7 here in the code. | |
183 | */ | |
184 | return max1111_read_channel(channel >> 1); | |
078abcf9 RP |
185 | } |
186 | ||
78731d33 DES |
187 | static int get_percentage(int voltage) |
188 | { | |
189 | int i = sharpsl_pm.machinfo->bat_levels - 1; | |
190 | int bl_status = sharpsl_pm.machinfo->backlight_get_status ? sharpsl_pm.machinfo->backlight_get_status() : 0; | |
191 | struct battery_thresh *thresh; | |
192 | ||
193 | if (sharpsl_pm.charge_mode == CHRG_ON) | |
194 | thresh = bl_status ? sharpsl_pm.machinfo->bat_levels_acin_bl : sharpsl_pm.machinfo->bat_levels_acin; | |
195 | else | |
196 | thresh = bl_status ? sharpsl_pm.machinfo->bat_levels_noac_bl : sharpsl_pm.machinfo->bat_levels_noac; | |
197 | ||
198 | while (i > 0 && (voltage > thresh[i].voltage)) | |
199 | i--; | |
200 | ||
201 | return thresh[i].percentage; | |
202 | } | |
203 | ||
204 | static int get_apm_status(int voltage) | |
205 | { | |
206 | int low_thresh, high_thresh; | |
207 | ||
208 | if (sharpsl_pm.charge_mode == CHRG_ON) { | |
209 | high_thresh = sharpsl_pm.machinfo->status_high_acin; | |
210 | low_thresh = sharpsl_pm.machinfo->status_low_acin; | |
211 | } else { | |
212 | high_thresh = sharpsl_pm.machinfo->status_high_noac; | |
213 | low_thresh = sharpsl_pm.machinfo->status_low_noac; | |
214 | } | |
215 | ||
216 | if (voltage >= high_thresh) | |
217 | return APM_BATTERY_STATUS_HIGH; | |
218 | if (voltage >= low_thresh) | |
219 | return APM_BATTERY_STATUS_LOW; | |
220 | return APM_BATTERY_STATUS_CRITICAL; | |
221 | } | |
222 | ||
223 | void sharpsl_battery_kick(void) | |
224 | { | |
225 | schedule_delayed_work(&sharpsl_bat, msecs_to_jiffies(125)); | |
226 | } | |
227 | EXPORT_SYMBOL(sharpsl_battery_kick); | |
228 | ||
229 | ||
230 | static void sharpsl_battery_thread(struct work_struct *private_) | |
231 | { | |
b64b0b76 | 232 | int voltage, percent, apm_status, i; |
78731d33 DES |
233 | |
234 | if (!sharpsl_pm.machinfo) | |
235 | return; | |
236 | ||
237 | sharpsl_pm.battstat.ac_status = (sharpsl_pm.machinfo->read_devdata(SHARPSL_STATUS_ACIN) ? APM_AC_ONLINE : APM_AC_OFFLINE); | |
238 | ||
239 | /* Corgi cannot confirm when battery fully charged so periodically kick! */ | |
240 | if (!sharpsl_pm.machinfo->batfull_irq && (sharpsl_pm.charge_mode == CHRG_ON) | |
241 | && time_after(jiffies, sharpsl_pm.charge_start_time + SHARPSL_CHARGE_ON_TIME_INTERVAL)) | |
242 | schedule_delayed_work(&toggle_charger, 0); | |
243 | ||
b64b0b76 | 244 | for (i = 0; i < 5; i++) { |
78731d33 | 245 | voltage = sharpsl_pm.machinfo->read_devdata(SHARPSL_BATT_VOLT); |
b64b0b76 | 246 | if (voltage > 0) |
78731d33 | 247 | break; |
b64b0b76 PM |
248 | } |
249 | if (voltage <= 0) { | |
250 | voltage = sharpsl_pm.machinfo->bat_levels_noac[0].voltage; | |
251 | dev_warn(sharpsl_pm.dev, "Warning: Cannot read main battery!\n"); | |
78731d33 DES |
252 | } |
253 | ||
254 | voltage = sharpsl_average_value(voltage); | |
255 | apm_status = get_apm_status(voltage); | |
256 | percent = get_percentage(voltage); | |
257 | ||
258 | /* At low battery voltages, the voltage has a tendency to start | |
b64b0b76 PM |
259 | creeping back up so we try to avoid this here */ |
260 | if ((sharpsl_pm.battstat.ac_status == APM_AC_ONLINE) | |
261 | || (apm_status == APM_BATTERY_STATUS_HIGH) | |
262 | || percent <= sharpsl_pm.battstat.mainbat_percent) { | |
78731d33 DES |
263 | sharpsl_pm.battstat.mainbat_voltage = voltage; |
264 | sharpsl_pm.battstat.mainbat_status = apm_status; | |
265 | sharpsl_pm.battstat.mainbat_percent = percent; | |
266 | } | |
267 | ||
268 | dev_dbg(sharpsl_pm.dev, "Battery: voltage: %d, status: %d, percentage: %d, time: %ld\n", voltage, | |
269 | sharpsl_pm.battstat.mainbat_status, sharpsl_pm.battstat.mainbat_percent, jiffies); | |
270 | ||
78731d33 DES |
271 | /* Suspend if critical battery level */ |
272 | if ((sharpsl_pm.battstat.ac_status != APM_AC_ONLINE) | |
b64b0b76 PM |
273 | && (sharpsl_pm.battstat.mainbat_status == APM_BATTERY_STATUS_CRITICAL) |
274 | && !(sharpsl_pm.flags & SHARPSL_APM_QUEUED)) { | |
78731d33 DES |
275 | sharpsl_pm.flags |= SHARPSL_APM_QUEUED; |
276 | dev_err(sharpsl_pm.dev, "Fatal Off\n"); | |
277 | apm_queue_event(APM_CRITICAL_SUSPEND); | |
278 | } | |
279 | ||
280 | schedule_delayed_work(&sharpsl_bat, SHARPSL_BATCHK_TIME); | |
281 | } | |
282 | ||
283 | void sharpsl_pm_led(int val) | |
284 | { | |
285 | if (val == SHARPSL_LED_ERROR) { | |
286 | dev_err(sharpsl_pm.dev, "Charging Error!\n"); | |
287 | } else if (val == SHARPSL_LED_ON) { | |
288 | dev_dbg(sharpsl_pm.dev, "Charge LED On\n"); | |
289 | led_trigger_event(sharpsl_charge_led_trigger, LED_FULL); | |
290 | } else { | |
291 | dev_dbg(sharpsl_pm.dev, "Charge LED Off\n"); | |
292 | led_trigger_event(sharpsl_charge_led_trigger, LED_OFF); | |
293 | } | |
294 | } | |
295 | ||
296 | static void sharpsl_charge_on(void) | |
297 | { | |
298 | dev_dbg(sharpsl_pm.dev, "Turning Charger On\n"); | |
299 | ||
300 | sharpsl_pm.full_count = 0; | |
301 | sharpsl_pm.charge_mode = CHRG_ON; | |
302 | schedule_delayed_work(&toggle_charger, msecs_to_jiffies(250)); | |
303 | schedule_delayed_work(&sharpsl_bat, msecs_to_jiffies(500)); | |
304 | } | |
305 | ||
306 | static void sharpsl_charge_off(void) | |
307 | { | |
308 | dev_dbg(sharpsl_pm.dev, "Turning Charger Off\n"); | |
309 | ||
310 | sharpsl_pm.machinfo->charge(0); | |
311 | sharpsl_pm_led(SHARPSL_LED_OFF); | |
312 | sharpsl_pm.charge_mode = CHRG_OFF; | |
313 | ||
314 | schedule_delayed_work(&sharpsl_bat, 0); | |
315 | } | |
316 | ||
317 | static void sharpsl_charge_error(void) | |
318 | { | |
319 | sharpsl_pm_led(SHARPSL_LED_ERROR); | |
320 | sharpsl_pm.machinfo->charge(0); | |
321 | sharpsl_pm.charge_mode = CHRG_ERROR; | |
322 | } | |
323 | ||
324 | static void sharpsl_charge_toggle(struct work_struct *private_) | |
325 | { | |
b64b0b76 | 326 | dev_dbg(sharpsl_pm.dev, "Toggling Charger at time: %lx\n", jiffies); |
78731d33 DES |
327 | |
328 | if (!sharpsl_pm.machinfo->read_devdata(SHARPSL_STATUS_ACIN)) { | |
329 | sharpsl_charge_off(); | |
330 | return; | |
331 | } else if ((sharpsl_check_battery_temp() < 0) || (sharpsl_ac_check() < 0)) { | |
332 | sharpsl_charge_error(); | |
333 | return; | |
334 | } | |
335 | ||
336 | sharpsl_pm_led(SHARPSL_LED_ON); | |
337 | sharpsl_pm.machinfo->charge(0); | |
338 | mdelay(SHARPSL_CHARGE_WAIT_TIME); | |
339 | sharpsl_pm.machinfo->charge(1); | |
340 | ||
341 | sharpsl_pm.charge_start_time = jiffies; | |
342 | } | |
343 | ||
344 | static void sharpsl_ac_timer(unsigned long data) | |
345 | { | |
346 | int acin = sharpsl_pm.machinfo->read_devdata(SHARPSL_STATUS_ACIN); | |
347 | ||
b64b0b76 | 348 | dev_dbg(sharpsl_pm.dev, "AC Status: %d\n", acin); |
78731d33 DES |
349 | |
350 | sharpsl_average_clear(); | |
351 | if (acin && (sharpsl_pm.charge_mode != CHRG_ON)) | |
352 | sharpsl_charge_on(); | |
353 | else if (sharpsl_pm.charge_mode == CHRG_ON) | |
354 | sharpsl_charge_off(); | |
355 | ||
356 | schedule_delayed_work(&sharpsl_bat, 0); | |
357 | } | |
358 | ||
359 | ||
d48898a3 | 360 | static irqreturn_t sharpsl_ac_isr(int irq, void *dev_id) |
78731d33 DES |
361 | { |
362 | /* Delay the event slightly to debounce */ | |
363 | /* Must be a smaller delay than the chrg_full_isr below */ | |
364 | mod_timer(&sharpsl_pm.ac_timer, jiffies + msecs_to_jiffies(250)); | |
365 | ||
366 | return IRQ_HANDLED; | |
367 | } | |
368 | ||
369 | static void sharpsl_chrg_full_timer(unsigned long data) | |
370 | { | |
371 | dev_dbg(sharpsl_pm.dev, "Charge Full at time: %lx\n", jiffies); | |
372 | ||
373 | sharpsl_pm.full_count++; | |
374 | ||
375 | if (!sharpsl_pm.machinfo->read_devdata(SHARPSL_STATUS_ACIN)) { | |
376 | dev_dbg(sharpsl_pm.dev, "Charge Full: AC removed - stop charging!\n"); | |
377 | if (sharpsl_pm.charge_mode == CHRG_ON) | |
378 | sharpsl_charge_off(); | |
379 | } else if (sharpsl_pm.full_count < 2) { | |
380 | dev_dbg(sharpsl_pm.dev, "Charge Full: Count too low\n"); | |
381 | schedule_delayed_work(&toggle_charger, 0); | |
382 | } else if (time_after(jiffies, sharpsl_pm.charge_start_time + SHARPSL_CHARGE_FINISH_TIME)) { | |
383 | dev_dbg(sharpsl_pm.dev, "Charge Full: Interrupt generated too slowly - retry.\n"); | |
384 | schedule_delayed_work(&toggle_charger, 0); | |
385 | } else { | |
386 | sharpsl_charge_off(); | |
387 | sharpsl_pm.charge_mode = CHRG_DONE; | |
388 | dev_dbg(sharpsl_pm.dev, "Charge Full: Charging Finished\n"); | |
389 | } | |
390 | } | |
391 | ||
392 | /* Charging Finished Interrupt (Not present on Corgi) */ | |
393 | /* Can trigger at the same time as an AC status change so | |
394 | delay until after that has been processed */ | |
d48898a3 | 395 | static irqreturn_t sharpsl_chrg_full_isr(int irq, void *dev_id) |
78731d33 DES |
396 | { |
397 | if (sharpsl_pm.flags & SHARPSL_SUSPENDED) | |
398 | return IRQ_HANDLED; | |
399 | ||
400 | /* delay until after any ac interrupt */ | |
401 | mod_timer(&sharpsl_pm.chrg_full_timer, jiffies + msecs_to_jiffies(500)); | |
402 | ||
403 | return IRQ_HANDLED; | |
404 | } | |
405 | ||
d48898a3 | 406 | static irqreturn_t sharpsl_fatal_isr(int irq, void *dev_id) |
78731d33 DES |
407 | { |
408 | int is_fatal = 0; | |
409 | ||
410 | if (!sharpsl_pm.machinfo->read_devdata(SHARPSL_STATUS_LOCK)) { | |
411 | dev_err(sharpsl_pm.dev, "Battery now Unlocked! Suspending.\n"); | |
412 | is_fatal = 1; | |
413 | } | |
414 | ||
415 | if (!sharpsl_pm.machinfo->read_devdata(SHARPSL_STATUS_FATAL)) { | |
416 | dev_err(sharpsl_pm.dev, "Fatal Batt Error! Suspending.\n"); | |
417 | is_fatal = 1; | |
418 | } | |
419 | ||
420 | if (!(sharpsl_pm.flags & SHARPSL_APM_QUEUED) && is_fatal) { | |
421 | sharpsl_pm.flags |= SHARPSL_APM_QUEUED; | |
422 | apm_queue_event(APM_CRITICAL_SUSPEND); | |
423 | } | |
424 | ||
425 | return IRQ_HANDLED; | |
426 | } | |
427 | ||
428 | /* | |
429 | * Maintain an average of the last 10 readings | |
430 | */ | |
431 | #define SHARPSL_CNV_VALUE_NUM 10 | |
432 | static int sharpsl_ad_index; | |
433 | ||
434 | static void sharpsl_average_clear(void) | |
435 | { | |
436 | sharpsl_ad_index = 0; | |
437 | } | |
438 | ||
439 | static int sharpsl_average_value(int ad) | |
440 | { | |
441 | int i, ad_val = 0; | |
442 | static int sharpsl_ad[SHARPSL_CNV_VALUE_NUM+1]; | |
443 | ||
444 | if (sharpsl_pm.battstat.mainbat_status != APM_BATTERY_STATUS_HIGH) { | |
445 | sharpsl_ad_index = 0; | |
446 | return ad; | |
447 | } | |
448 | ||
449 | sharpsl_ad[sharpsl_ad_index] = ad; | |
450 | sharpsl_ad_index++; | |
451 | if (sharpsl_ad_index >= SHARPSL_CNV_VALUE_NUM) { | |
b64b0b76 | 452 | for (i = 0; i < (SHARPSL_CNV_VALUE_NUM-1); i++) |
78731d33 DES |
453 | sharpsl_ad[i] = sharpsl_ad[i+1]; |
454 | sharpsl_ad_index = SHARPSL_CNV_VALUE_NUM - 1; | |
455 | } | |
b64b0b76 | 456 | for (i = 0; i < sharpsl_ad_index; i++) |
78731d33 DES |
457 | ad_val += sharpsl_ad[i]; |
458 | ||
b64b0b76 | 459 | return ad_val / sharpsl_ad_index; |
78731d33 DES |
460 | } |
461 | ||
462 | /* | |
463 | * Take an array of 5 integers, remove the maximum and minimum values | |
464 | * and return the average. | |
465 | */ | |
466 | static int get_select_val(int *val) | |
467 | { | |
468 | int i, j, k, temp, sum = 0; | |
469 | ||
470 | /* Find MAX val */ | |
471 | temp = val[0]; | |
b64b0b76 PM |
472 | j = 0; |
473 | for (i = 1; i < 5; i++) { | |
78731d33 DES |
474 | if (temp < val[i]) { |
475 | temp = val[i]; | |
476 | j = i; | |
477 | } | |
478 | } | |
479 | ||
480 | /* Find MIN val */ | |
481 | temp = val[4]; | |
b64b0b76 PM |
482 | k = 4; |
483 | for (i = 3; i >= 0; i--) { | |
78731d33 DES |
484 | if (temp > val[i]) { |
485 | temp = val[i]; | |
486 | k = i; | |
487 | } | |
488 | } | |
489 | ||
b64b0b76 PM |
490 | for (i = 0; i < 5; i++) |
491 | if (i != j && i != k) | |
78731d33 DES |
492 | sum += val[i]; |
493 | ||
494 | 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]); | |
495 | ||
b64b0b76 | 496 | return sum/3; |
78731d33 DES |
497 | } |
498 | ||
499 | static int sharpsl_check_battery_temp(void) | |
500 | { | |
501 | int val, i, buff[5]; | |
502 | ||
503 | /* Check battery temperature */ | |
b64b0b76 | 504 | for (i = 0; i < 5; i++) { |
78731d33 DES |
505 | mdelay(SHARPSL_CHECK_BATTERY_WAIT_TIME_TEMP); |
506 | sharpsl_pm.machinfo->measure_temp(1); | |
507 | mdelay(SHARPSL_CHECK_BATTERY_WAIT_TIME_TEMP); | |
508 | buff[i] = sharpsl_pm.machinfo->read_devdata(SHARPSL_BATT_TEMP); | |
509 | sharpsl_pm.machinfo->measure_temp(0); | |
510 | } | |
511 | ||
512 | val = get_select_val(buff); | |
513 | ||
514 | dev_dbg(sharpsl_pm.dev, "Temperature: %d\n", val); | |
515 | if (val > sharpsl_pm.machinfo->charge_on_temp) { | |
516 | printk(KERN_WARNING "Not charging: temperature out of limits.\n"); | |
517 | return -1; | |
518 | } | |
519 | ||
520 | return 0; | |
521 | } | |
522 | ||
523 | #ifdef CONFIG_PM | |
524 | static int sharpsl_check_battery_voltage(void) | |
525 | { | |
526 | int val, i, buff[5]; | |
527 | ||
528 | /* disable charge, enable discharge */ | |
529 | sharpsl_pm.machinfo->charge(0); | |
530 | sharpsl_pm.machinfo->discharge(1); | |
531 | mdelay(SHARPSL_WAIT_DISCHARGE_ON); | |
532 | ||
533 | if (sharpsl_pm.machinfo->discharge1) | |
534 | sharpsl_pm.machinfo->discharge1(1); | |
535 | ||
536 | /* Check battery voltage */ | |
b64b0b76 | 537 | for (i = 0; i < 5; i++) { |
78731d33 DES |
538 | buff[i] = sharpsl_pm.machinfo->read_devdata(SHARPSL_BATT_VOLT); |
539 | mdelay(SHARPSL_CHECK_BATTERY_WAIT_TIME_VOLT); | |
540 | } | |
541 | ||
542 | if (sharpsl_pm.machinfo->discharge1) | |
543 | sharpsl_pm.machinfo->discharge1(0); | |
544 | ||
545 | sharpsl_pm.machinfo->discharge(0); | |
546 | ||
547 | val = get_select_val(buff); | |
548 | dev_dbg(sharpsl_pm.dev, "Battery Voltage: %d\n", val); | |
549 | ||
550 | if (val < sharpsl_pm.machinfo->charge_on_volt) | |
551 | return -1; | |
552 | ||
553 | return 0; | |
554 | } | |
555 | #endif | |
556 | ||
557 | static int sharpsl_ac_check(void) | |
558 | { | |
559 | int temp, i, buff[5]; | |
560 | ||
b64b0b76 | 561 | for (i = 0; i < 5; i++) { |
78731d33 DES |
562 | buff[i] = sharpsl_pm.machinfo->read_devdata(SHARPSL_ACIN_VOLT); |
563 | mdelay(SHARPSL_CHECK_BATTERY_WAIT_TIME_ACIN); | |
564 | } | |
565 | ||
566 | temp = get_select_val(buff); | |
b64b0b76 | 567 | dev_dbg(sharpsl_pm.dev, "AC Voltage: %d\n", temp); |
78731d33 DES |
568 | |
569 | if ((temp > sharpsl_pm.machinfo->charge_acin_high) || (temp < sharpsl_pm.machinfo->charge_acin_low)) { | |
b64b0b76 | 570 | dev_err(sharpsl_pm.dev, "Error: AC check failed: voltage %d.\n", temp); |
78731d33 DES |
571 | return -1; |
572 | } | |
573 | ||
574 | return 0; | |
575 | } | |
576 | ||
577 | #ifdef CONFIG_PM | |
578 | static int sharpsl_pm_suspend(struct platform_device *pdev, pm_message_t state) | |
579 | { | |
580 | sharpsl_pm.flags |= SHARPSL_SUSPENDED; | |
43829731 TH |
581 | flush_delayed_work(&toggle_charger); |
582 | flush_delayed_work(&sharpsl_bat); | |
78731d33 DES |
583 | |
584 | if (sharpsl_pm.charge_mode == CHRG_ON) | |
585 | sharpsl_pm.flags |= SHARPSL_DO_OFFLINE_CHRG; | |
586 | else | |
587 | sharpsl_pm.flags &= ~SHARPSL_DO_OFFLINE_CHRG; | |
588 | ||
589 | return 0; | |
590 | } | |
591 | ||
592 | static int sharpsl_pm_resume(struct platform_device *pdev) | |
593 | { | |
594 | /* Clear the reset source indicators as they break the bootloader upon reboot */ | |
595 | RCSR = 0x0f; | |
596 | sharpsl_average_clear(); | |
597 | sharpsl_pm.flags &= ~SHARPSL_APM_QUEUED; | |
598 | sharpsl_pm.flags &= ~SHARPSL_SUSPENDED; | |
599 | ||
600 | return 0; | |
601 | } | |
602 | ||
603 | static void corgi_goto_sleep(unsigned long alarm_time, unsigned int alarm_enable, suspend_state_t state) | |
604 | { | |
b64b0b76 | 605 | dev_dbg(sharpsl_pm.dev, "Time is: %08x\n", RCNR); |
78731d33 | 606 | |
b64b0b76 | 607 | dev_dbg(sharpsl_pm.dev, "Offline Charge Activate = %d\n", sharpsl_pm.flags & SHARPSL_DO_OFFLINE_CHRG); |
78731d33 DES |
608 | /* not charging and AC-IN! */ |
609 | ||
610 | if ((sharpsl_pm.flags & SHARPSL_DO_OFFLINE_CHRG) && (sharpsl_pm.machinfo->read_devdata(SHARPSL_STATUS_ACIN))) { | |
611 | dev_dbg(sharpsl_pm.dev, "Activating Offline Charger...\n"); | |
612 | sharpsl_pm.charge_mode = CHRG_OFF; | |
613 | sharpsl_pm.flags &= ~SHARPSL_DO_OFFLINE_CHRG; | |
614 | sharpsl_off_charge_battery(); | |
615 | } | |
616 | ||
617 | sharpsl_pm.machinfo->presuspend(); | |
618 | ||
619 | PEDR = 0xffffffff; /* clear it */ | |
620 | ||
621 | sharpsl_pm.flags &= ~SHARPSL_ALARM_ACTIVE; | |
622 | if ((sharpsl_pm.charge_mode == CHRG_ON) && ((alarm_enable && ((alarm_time - RCNR) > (SHARPSL_BATCHK_TIME_SUSPEND + 30))) || !alarm_enable)) { | |
623 | RTSR &= RTSR_ALE; | |
624 | RTAR = RCNR + SHARPSL_BATCHK_TIME_SUSPEND; | |
b64b0b76 | 625 | dev_dbg(sharpsl_pm.dev, "Charging alarm at: %08x\n", RTAR); |
78731d33 DES |
626 | sharpsl_pm.flags |= SHARPSL_ALARM_ACTIVE; |
627 | } else if (alarm_enable) { | |
628 | RTSR &= RTSR_ALE; | |
629 | RTAR = alarm_time; | |
b64b0b76 | 630 | dev_dbg(sharpsl_pm.dev, "User alarm at: %08x\n", RTAR); |
78731d33 DES |
631 | } else { |
632 | dev_dbg(sharpsl_pm.dev, "No alarms set.\n"); | |
633 | } | |
634 | ||
635 | pxa_pm_enter(state); | |
636 | ||
637 | sharpsl_pm.machinfo->postsuspend(); | |
638 | ||
b64b0b76 | 639 | dev_dbg(sharpsl_pm.dev, "Corgi woken up from suspend: %08x\n", PEDR); |
78731d33 DES |
640 | } |
641 | ||
642 | static int corgi_enter_suspend(unsigned long alarm_time, unsigned int alarm_enable, suspend_state_t state) | |
643 | { | |
b64b0b76 | 644 | if (!sharpsl_pm.machinfo->should_wakeup(!(sharpsl_pm.flags & SHARPSL_ALARM_ACTIVE) && alarm_enable)) { |
78731d33 DES |
645 | if (!(sharpsl_pm.flags & SHARPSL_ALARM_ACTIVE)) { |
646 | dev_dbg(sharpsl_pm.dev, "No user triggered wakeup events and not charging. Strange. Suspend.\n"); | |
647 | corgi_goto_sleep(alarm_time, alarm_enable, state); | |
648 | return 1; | |
649 | } | |
b64b0b76 | 650 | if (sharpsl_off_charge_battery()) { |
78731d33 DES |
651 | dev_dbg(sharpsl_pm.dev, "Charging. Suspend...\n"); |
652 | corgi_goto_sleep(alarm_time, alarm_enable, state); | |
653 | return 1; | |
654 | } | |
655 | dev_dbg(sharpsl_pm.dev, "User triggered wakeup in offline charger.\n"); | |
656 | } | |
657 | ||
99f329a2 PM |
658 | if ((!sharpsl_pm.machinfo->read_devdata(SHARPSL_STATUS_LOCK)) || |
659 | (!sharpsl_pm.machinfo->read_devdata(SHARPSL_STATUS_FATAL))) { | |
78731d33 DES |
660 | dev_err(sharpsl_pm.dev, "Fatal condition. Suspend.\n"); |
661 | corgi_goto_sleep(alarm_time, alarm_enable, state); | |
662 | return 1; | |
663 | } | |
664 | ||
665 | return 0; | |
666 | } | |
667 | ||
668 | static int corgi_pxa_pm_enter(suspend_state_t state) | |
669 | { | |
670 | unsigned long alarm_time = RTAR; | |
671 | unsigned int alarm_status = ((RTSR & RTSR_ALE) != 0); | |
672 | ||
673 | dev_dbg(sharpsl_pm.dev, "SharpSL suspending for first time.\n"); | |
674 | ||
675 | corgi_goto_sleep(alarm_time, alarm_status, state); | |
676 | ||
b64b0b76 | 677 | while (corgi_enter_suspend(alarm_time, alarm_status, state)) |
78731d33 DES |
678 | {} |
679 | ||
680 | if (sharpsl_pm.machinfo->earlyresume) | |
681 | sharpsl_pm.machinfo->earlyresume(); | |
682 | ||
683 | dev_dbg(sharpsl_pm.dev, "SharpSL resuming...\n"); | |
684 | ||
685 | return 0; | |
686 | } | |
687 | ||
78731d33 DES |
688 | static int sharpsl_off_charge_error(void) |
689 | { | |
690 | dev_err(sharpsl_pm.dev, "Offline Charger: Error occurred.\n"); | |
691 | sharpsl_pm.machinfo->charge(0); | |
692 | sharpsl_pm_led(SHARPSL_LED_ERROR); | |
693 | sharpsl_pm.charge_mode = CHRG_ERROR; | |
694 | return 1; | |
695 | } | |
696 | ||
697 | /* | |
698 | * Charging Control while suspended | |
699 | * Return 1 - go straight to sleep | |
700 | * Return 0 - sleep or wakeup depending on other factors | |
701 | */ | |
702 | static int sharpsl_off_charge_battery(void) | |
703 | { | |
704 | int time; | |
705 | ||
706 | dev_dbg(sharpsl_pm.dev, "Charge Mode: %d\n", sharpsl_pm.charge_mode); | |
707 | ||
708 | if (sharpsl_pm.charge_mode == CHRG_OFF) { | |
709 | dev_dbg(sharpsl_pm.dev, "Offline Charger: Step 1\n"); | |
710 | ||
711 | /* AC Check */ | |
712 | if ((sharpsl_ac_check() < 0) || (sharpsl_check_battery_temp() < 0)) | |
713 | return sharpsl_off_charge_error(); | |
714 | ||
715 | /* Start Charging */ | |
716 | sharpsl_pm_led(SHARPSL_LED_ON); | |
717 | sharpsl_pm.machinfo->charge(0); | |
718 | mdelay(SHARPSL_CHARGE_WAIT_TIME); | |
719 | sharpsl_pm.machinfo->charge(1); | |
720 | ||
721 | sharpsl_pm.charge_mode = CHRG_ON; | |
722 | sharpsl_pm.full_count = 0; | |
723 | ||
724 | return 1; | |
725 | } else if (sharpsl_pm.charge_mode != CHRG_ON) { | |
726 | return 1; | |
727 | } | |
728 | ||
729 | if (sharpsl_pm.full_count == 0) { | |
730 | int time; | |
731 | ||
732 | dev_dbg(sharpsl_pm.dev, "Offline Charger: Step 2\n"); | |
733 | ||
734 | if ((sharpsl_check_battery_temp() < 0) || (sharpsl_check_battery_voltage() < 0)) | |
735 | return sharpsl_off_charge_error(); | |
736 | ||
737 | sharpsl_pm.machinfo->charge(0); | |
738 | mdelay(SHARPSL_CHARGE_WAIT_TIME); | |
739 | sharpsl_pm.machinfo->charge(1); | |
740 | sharpsl_pm.charge_mode = CHRG_ON; | |
741 | ||
742 | mdelay(SHARPSL_CHARGE_CO_CHECK_TIME); | |
743 | ||
744 | time = RCNR; | |
b64b0b76 | 745 | while (1) { |
78731d33 DES |
746 | /* Check if any wakeup event had occurred */ |
747 | if (sharpsl_pm.machinfo->charger_wakeup() != 0) | |
748 | return 0; | |
749 | /* Check for timeout */ | |
750 | if ((RCNR - time) > SHARPSL_WAIT_CO_TIME) | |
751 | return 1; | |
752 | if (sharpsl_pm.machinfo->read_devdata(SHARPSL_STATUS_CHRGFULL)) { | |
753 | dev_dbg(sharpsl_pm.dev, "Offline Charger: Charge full occurred. Retrying to check\n"); | |
754 | sharpsl_pm.full_count++; | |
755 | sharpsl_pm.machinfo->charge(0); | |
756 | mdelay(SHARPSL_CHARGE_WAIT_TIME); | |
757 | sharpsl_pm.machinfo->charge(1); | |
758 | return 1; | |
759 | } | |
760 | } | |
761 | } | |
762 | ||
763 | dev_dbg(sharpsl_pm.dev, "Offline Charger: Step 3\n"); | |
764 | ||
765 | mdelay(SHARPSL_CHARGE_CO_CHECK_TIME); | |
766 | ||
767 | time = RCNR; | |
b64b0b76 | 768 | while (1) { |
78731d33 | 769 | /* Check if any wakeup event had occurred */ |
b64b0b76 | 770 | if (sharpsl_pm.machinfo->charger_wakeup()) |
78731d33 DES |
771 | return 0; |
772 | /* Check for timeout */ | |
773 | if ((RCNR-time) > SHARPSL_WAIT_CO_TIME) { | |
774 | if (sharpsl_pm.full_count > SHARPSL_CHARGE_RETRY_CNT) { | |
775 | dev_dbg(sharpsl_pm.dev, "Offline Charger: Not charged sufficiently. Retrying.\n"); | |
776 | sharpsl_pm.full_count = 0; | |
777 | } | |
778 | sharpsl_pm.full_count++; | |
779 | return 1; | |
780 | } | |
781 | if (sharpsl_pm.machinfo->read_devdata(SHARPSL_STATUS_CHRGFULL)) { | |
782 | dev_dbg(sharpsl_pm.dev, "Offline Charger: Charging complete.\n"); | |
783 | sharpsl_pm_led(SHARPSL_LED_OFF); | |
784 | sharpsl_pm.machinfo->charge(0); | |
785 | sharpsl_pm.charge_mode = CHRG_DONE; | |
786 | return 1; | |
787 | } | |
788 | } | |
789 | } | |
790 | #else | |
791 | #define sharpsl_pm_suspend NULL | |
792 | #define sharpsl_pm_resume NULL | |
793 | #endif | |
794 | ||
795 | static ssize_t battery_percentage_show(struct device *dev, struct device_attribute *attr, char *buf) | |
796 | { | |
b64b0b76 | 797 | return sprintf(buf, "%d\n", sharpsl_pm.battstat.mainbat_percent); |
78731d33 DES |
798 | } |
799 | ||
800 | static ssize_t battery_voltage_show(struct device *dev, struct device_attribute *attr, char *buf) | |
801 | { | |
b64b0b76 | 802 | return sprintf(buf, "%d\n", sharpsl_pm.battstat.mainbat_voltage); |
78731d33 DES |
803 | } |
804 | ||
805 | static DEVICE_ATTR(battery_percentage, 0444, battery_percentage_show, NULL); | |
806 | static DEVICE_ATTR(battery_voltage, 0444, battery_voltage_show, NULL); | |
807 | ||
808 | extern void (*apm_get_power_status)(struct apm_power_info *); | |
809 | ||
810 | static void sharpsl_apm_get_power_status(struct apm_power_info *info) | |
811 | { | |
812 | info->ac_line_status = sharpsl_pm.battstat.ac_status; | |
813 | ||
814 | if (sharpsl_pm.charge_mode == CHRG_ON) | |
815 | info->battery_status = APM_BATTERY_STATUS_CHARGING; | |
816 | else | |
817 | info->battery_status = sharpsl_pm.battstat.mainbat_status; | |
818 | ||
819 | info->battery_flag = (1 << info->battery_status); | |
820 | info->battery_life = sharpsl_pm.battstat.mainbat_percent; | |
821 | } | |
822 | ||
823 | #ifdef CONFIG_PM | |
2f55ac07 | 824 | static const struct platform_suspend_ops sharpsl_pm_ops = { |
51cdd928 PM |
825 | .prepare = pxa_pm_prepare, |
826 | .finish = pxa_pm_finish, | |
78731d33 DES |
827 | .enter = corgi_pxa_pm_enter, |
828 | .valid = suspend_valid_only_mem, | |
829 | }; | |
830 | #endif | |
831 | ||
351a102d | 832 | static int sharpsl_pm_probe(struct platform_device *pdev) |
78731d33 | 833 | { |
74595e17 | 834 | int ret, irq; |
78731d33 DES |
835 | |
836 | if (!pdev->dev.platform_data) | |
837 | return -EINVAL; | |
838 | ||
839 | sharpsl_pm.dev = &pdev->dev; | |
840 | sharpsl_pm.machinfo = pdev->dev.platform_data; | |
841 | sharpsl_pm.charge_mode = CHRG_OFF; | |
842 | sharpsl_pm.flags = 0; | |
843 | ||
844 | init_timer(&sharpsl_pm.ac_timer); | |
845 | sharpsl_pm.ac_timer.function = sharpsl_ac_timer; | |
846 | ||
847 | init_timer(&sharpsl_pm.chrg_full_timer); | |
848 | sharpsl_pm.chrg_full_timer.function = sharpsl_chrg_full_timer; | |
849 | ||
850 | led_trigger_register_simple("sharpsl-charge", &sharpsl_charge_led_trigger); | |
851 | ||
852 | sharpsl_pm.machinfo->init(); | |
853 | ||
d5af2778 DES |
854 | gpio_request(sharpsl_pm.machinfo->gpio_acin, "AC IN"); |
855 | gpio_direction_input(sharpsl_pm.machinfo->gpio_acin); | |
856 | gpio_request(sharpsl_pm.machinfo->gpio_batfull, "Battery Full"); | |
857 | gpio_direction_input(sharpsl_pm.machinfo->gpio_batfull); | |
858 | gpio_request(sharpsl_pm.machinfo->gpio_batlock, "Battery Lock"); | |
859 | gpio_direction_input(sharpsl_pm.machinfo->gpio_batlock); | |
d48898a3 DES |
860 | |
861 | /* Register interrupt handlers */ | |
74595e17 RH |
862 | irq = gpio_to_irq(sharpsl_pm.machinfo->gpio_acin); |
863 | if (request_irq(irq, sharpsl_ac_isr, IRQF_DISABLED | IRQF_TRIGGER_RISING | IRQF_TRIGGER_FALLING, "AC Input Detect", sharpsl_ac_isr)) { | |
864 | dev_err(sharpsl_pm.dev, "Could not get irq %d.\n", irq); | |
d48898a3 | 865 | } |
d48898a3 | 866 | |
74595e17 RH |
867 | irq = gpio_to_irq(sharpsl_pm.machinfo->gpio_batlock); |
868 | if (request_irq(irq, sharpsl_fatal_isr, IRQF_DISABLED | IRQF_TRIGGER_FALLING, "Battery Cover", sharpsl_fatal_isr)) { | |
869 | dev_err(sharpsl_pm.dev, "Could not get irq %d.\n", irq); | |
d48898a3 | 870 | } |
d48898a3 DES |
871 | |
872 | if (sharpsl_pm.machinfo->gpio_fatal) { | |
74595e17 RH |
873 | irq = gpio_to_irq(sharpsl_pm.machinfo->gpio_fatal); |
874 | if (request_irq(irq, sharpsl_fatal_isr, IRQF_DISABLED | IRQF_TRIGGER_FALLING, "Fatal Battery", sharpsl_fatal_isr)) { | |
875 | dev_err(sharpsl_pm.dev, "Could not get irq %d.\n", irq); | |
d48898a3 | 876 | } |
d48898a3 DES |
877 | } |
878 | ||
b64b0b76 | 879 | if (sharpsl_pm.machinfo->batfull_irq) { |
d48898a3 | 880 | /* Register interrupt handler. */ |
74595e17 RH |
881 | irq = gpio_to_irq(sharpsl_pm.machinfo->gpio_batfull); |
882 | if (request_irq(irq, sharpsl_chrg_full_isr, IRQF_DISABLED | IRQF_TRIGGER_RISING, "CO", sharpsl_chrg_full_isr)) { | |
883 | dev_err(sharpsl_pm.dev, "Could not get irq %d.\n", irq); | |
d48898a3 | 884 | } |
d48898a3 DES |
885 | } |
886 | ||
78731d33 DES |
887 | ret = device_create_file(&pdev->dev, &dev_attr_battery_percentage); |
888 | ret |= device_create_file(&pdev->dev, &dev_attr_battery_voltage); | |
889 | if (ret != 0) | |
890 | dev_warn(&pdev->dev, "Failed to register attributes (%d)\n", ret); | |
891 | ||
892 | apm_get_power_status = sharpsl_apm_get_power_status; | |
893 | ||
894 | #ifdef CONFIG_PM | |
895 | suspend_set_ops(&sharpsl_pm_ops); | |
896 | #endif | |
897 | ||
898 | mod_timer(&sharpsl_pm.ac_timer, jiffies + msecs_to_jiffies(250)); | |
899 | ||
900 | return 0; | |
901 | } | |
902 | ||
903 | static int sharpsl_pm_remove(struct platform_device *pdev) | |
904 | { | |
905 | suspend_set_ops(NULL); | |
906 | ||
907 | device_remove_file(&pdev->dev, &dev_attr_battery_percentage); | |
908 | device_remove_file(&pdev->dev, &dev_attr_battery_voltage); | |
909 | ||
910 | led_trigger_unregister_simple(sharpsl_charge_led_trigger); | |
911 | ||
74595e17 RH |
912 | free_irq(gpio_to_irq(sharpsl_pm.machinfo->gpio_acin), sharpsl_ac_isr); |
913 | free_irq(gpio_to_irq(sharpsl_pm.machinfo->gpio_batlock), sharpsl_fatal_isr); | |
d48898a3 DES |
914 | |
915 | if (sharpsl_pm.machinfo->gpio_fatal) | |
74595e17 | 916 | free_irq(gpio_to_irq(sharpsl_pm.machinfo->gpio_fatal), sharpsl_fatal_isr); |
d48898a3 DES |
917 | |
918 | if (sharpsl_pm.machinfo->batfull_irq) | |
74595e17 | 919 | free_irq(gpio_to_irq(sharpsl_pm.machinfo->gpio_batfull), sharpsl_chrg_full_isr); |
d48898a3 | 920 | |
d5af2778 DES |
921 | gpio_free(sharpsl_pm.machinfo->gpio_batlock); |
922 | gpio_free(sharpsl_pm.machinfo->gpio_batfull); | |
923 | gpio_free(sharpsl_pm.machinfo->gpio_acin); | |
924 | ||
d48898a3 DES |
925 | if (sharpsl_pm.machinfo->exit) |
926 | sharpsl_pm.machinfo->exit(); | |
78731d33 DES |
927 | |
928 | del_timer_sync(&sharpsl_pm.chrg_full_timer); | |
929 | del_timer_sync(&sharpsl_pm.ac_timer); | |
930 | ||
931 | return 0; | |
932 | } | |
933 | ||
934 | static struct platform_driver sharpsl_pm_driver = { | |
935 | .probe = sharpsl_pm_probe, | |
936 | .remove = sharpsl_pm_remove, | |
937 | .suspend = sharpsl_pm_suspend, | |
938 | .resume = sharpsl_pm_resume, | |
939 | .driver = { | |
940 | .name = "sharpsl-pm", | |
941 | }, | |
942 | }; | |
943 | ||
351a102d | 944 | static int sharpsl_pm_init(void) |
78731d33 DES |
945 | { |
946 | return platform_driver_register(&sharpsl_pm_driver); | |
947 | } | |
948 | ||
949 | static void sharpsl_pm_exit(void) | |
950 | { | |
951 | platform_driver_unregister(&sharpsl_pm_driver); | |
952 | } | |
953 | ||
954 | late_initcall(sharpsl_pm_init); | |
955 | module_exit(sharpsl_pm_exit); |