diff options
Diffstat (limited to 'drivers/mfd/ucb1x00-ts.c')
-rw-r--r-- | drivers/mfd/ucb1x00-ts.c | 34 |
1 files changed, 6 insertions, 28 deletions
diff --git a/drivers/mfd/ucb1x00-ts.c b/drivers/mfd/ucb1x00-ts.c index 40ec3c118868..63a3cbdfa3f3 100644 --- a/drivers/mfd/ucb1x00-ts.c +++ b/drivers/mfd/ucb1x00-ts.c | |||
@@ -47,7 +47,6 @@ struct ucb1x00_ts { | |||
47 | u16 x_res; | 47 | u16 x_res; |
48 | u16 y_res; | 48 | u16 y_res; |
49 | 49 | ||
50 | unsigned int restart:1; | ||
51 | unsigned int adcsync:1; | 50 | unsigned int adcsync:1; |
52 | }; | 51 | }; |
53 | 52 | ||
@@ -207,15 +206,17 @@ static int ucb1x00_thread(void *_ts) | |||
207 | { | 206 | { |
208 | struct ucb1x00_ts *ts = _ts; | 207 | struct ucb1x00_ts *ts = _ts; |
209 | DECLARE_WAITQUEUE(wait, current); | 208 | DECLARE_WAITQUEUE(wait, current); |
209 | bool frozen, ignore = false; | ||
210 | int valid = 0; | 210 | int valid = 0; |
211 | 211 | ||
212 | set_freezable(); | 212 | set_freezable(); |
213 | add_wait_queue(&ts->irq_wait, &wait); | 213 | add_wait_queue(&ts->irq_wait, &wait); |
214 | while (!kthread_should_stop()) { | 214 | while (!kthread_freezable_should_stop(&frozen)) { |
215 | unsigned int x, y, p; | 215 | unsigned int x, y, p; |
216 | signed long timeout; | 216 | signed long timeout; |
217 | 217 | ||
218 | ts->restart = 0; | 218 | if (frozen) |
219 | ignore = true; | ||
219 | 220 | ||
220 | ucb1x00_adc_enable(ts->ucb); | 221 | ucb1x00_adc_enable(ts->ucb); |
221 | 222 | ||
@@ -258,7 +259,7 @@ static int ucb1x00_thread(void *_ts) | |||
258 | * space. We therefore leave it to user space | 259 | * space. We therefore leave it to user space |
259 | * to do any filtering they please. | 260 | * to do any filtering they please. |
260 | */ | 261 | */ |
261 | if (!ts->restart) { | 262 | if (!ignore) { |
262 | ucb1x00_ts_evt_add(ts, p, x, y); | 263 | ucb1x00_ts_evt_add(ts, p, x, y); |
263 | valid = 1; | 264 | valid = 1; |
264 | } | 265 | } |
@@ -267,8 +268,6 @@ static int ucb1x00_thread(void *_ts) | |||
267 | timeout = HZ / 100; | 268 | timeout = HZ / 100; |
268 | } | 269 | } |
269 | 270 | ||
270 | try_to_freeze(); | ||
271 | |||
272 | schedule_timeout(timeout); | 271 | schedule_timeout(timeout); |
273 | } | 272 | } |
274 | 273 | ||
@@ -340,26 +339,6 @@ static void ucb1x00_ts_close(struct input_dev *idev) | |||
340 | ucb1x00_disable(ts->ucb); | 339 | ucb1x00_disable(ts->ucb); |
341 | } | 340 | } |
342 | 341 | ||
343 | #ifdef CONFIG_PM | ||
344 | static int ucb1x00_ts_resume(struct ucb1x00_dev *dev) | ||
345 | { | ||
346 | struct ucb1x00_ts *ts = dev->priv; | ||
347 | |||
348 | if (ts->rtask != NULL) { | ||
349 | /* | ||
350 | * Restart the TS thread to ensure the | ||
351 | * TS interrupt mode is set up again | ||
352 | * after sleep. | ||
353 | */ | ||
354 | ts->restart = 1; | ||
355 | wake_up(&ts->irq_wait); | ||
356 | } | ||
357 | return 0; | ||
358 | } | ||
359 | #else | ||
360 | #define ucb1x00_ts_resume NULL | ||
361 | #endif | ||
362 | |||
363 | 342 | ||
364 | /* | 343 | /* |
365 | * Initialisation. | 344 | * Initialisation. |
@@ -382,7 +361,7 @@ static int ucb1x00_ts_add(struct ucb1x00_dev *dev) | |||
382 | ts->adcsync = adcsync ? UCB_SYNC : UCB_NOSYNC; | 361 | ts->adcsync = adcsync ? UCB_SYNC : UCB_NOSYNC; |
383 | 362 | ||
384 | idev->name = "Touchscreen panel"; | 363 | idev->name = "Touchscreen panel"; |
385 | idev->id.product = ts->ucb->id->driver_data; | 364 | idev->id.product = ts->ucb->id; |
386 | idev->open = ucb1x00_ts_open; | 365 | idev->open = ucb1x00_ts_open; |
387 | idev->close = ucb1x00_ts_close; | 366 | idev->close = ucb1x00_ts_close; |
388 | 367 | ||
@@ -425,7 +404,6 @@ static void ucb1x00_ts_remove(struct ucb1x00_dev *dev) | |||
425 | static struct ucb1x00_driver ucb1x00_ts_driver = { | 404 | static struct ucb1x00_driver ucb1x00_ts_driver = { |
426 | .add = ucb1x00_ts_add, | 405 | .add = ucb1x00_ts_add, |
427 | .remove = ucb1x00_ts_remove, | 406 | .remove = ucb1x00_ts_remove, |
428 | .resume = ucb1x00_ts_resume, | ||
429 | }; | 407 | }; |
430 | 408 | ||
431 | static int __init ucb1x00_ts_init(void) | 409 | static int __init ucb1x00_ts_init(void) |