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authorLinus Torvalds <torvalds@linux-foundation.org>2011-07-27 12:24:56 -0400
committerLinus Torvalds <torvalds@linux-foundation.org>2011-07-27 12:24:56 -0400
commit70a3eff5768350c0313a9ae70a15da113171d0ab (patch)
tree9c2558f92e567bcb35c79f59bc7ebc9cf6fdc9d3 /drivers/input/touchscreen/wm9712.c
parent9ed3689bdceb0064ee6faf0e76f6467122794970 (diff)
parentaa7eb8e78d8ecd6cd0475d86ea8385ff9cb47ece (diff)
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input: (53 commits) Input: synaptics - fix reporting of min coordinates Input: tegra-kbc - enable key autorepeat Input: kxtj9 - fix locking typo in kxtj9_set_poll() Input: kxtj9 - fix bug in probe() Input: intel-mid-touch - remove pointless checking for variable 'found' Input: hp_sdc - staticize hp_sdc_kicker() Input: pmic8xxx-keypad - fix a leak of the IRQ during init failure Input: cy8ctmg110_ts - set reset_pin and irq_pin from platform data Input: cy8ctmg110_ts - constify i2c_device_id table Input: cy8ctmg110_ts - fix checking return value of i2c_master_send Input: lifebook - make dmi callback functions return 1 Input: atkbd - make dmi callback functions return 1 Input: gpio_keys - switch to using SIMPLE_DEV_PM_OPS Input: gpio_keys - add support for device-tree platform data Input: aiptek - remove double define Input: synaptics - set minimum coordinates as reported by firmware Input: synaptics - process button bits in AGM packets Input: synaptics - rename set_slot to be more descriptive Input: synaptics - fuzz position for touchpad with reduced filtering Input: synaptics - set resolution for MT_POSITION_X/Y axes ...
Diffstat (limited to 'drivers/input/touchscreen/wm9712.c')
-rw-r--r--drivers/input/touchscreen/wm9712.c27
1 files changed, 14 insertions, 13 deletions
diff --git a/drivers/input/touchscreen/wm9712.c b/drivers/input/touchscreen/wm9712.c
index 2bc2fb801009..6e743e3dfda4 100644
--- a/drivers/input/touchscreen/wm9712.c
+++ b/drivers/input/touchscreen/wm9712.c
@@ -255,8 +255,9 @@ static inline int is_pden(struct wm97xx *wm)
255static int wm9712_poll_sample(struct wm97xx *wm, int adcsel, int *sample) 255static int wm9712_poll_sample(struct wm97xx *wm, int adcsel, int *sample)
256{ 256{
257 int timeout = 5 * delay; 257 int timeout = 5 * delay;
258 bool wants_pen = adcsel & WM97XX_PEN_DOWN;
258 259
259 if (!wm->pen_probably_down) { 260 if (wants_pen && !wm->pen_probably_down) {
260 u16 data = wm97xx_reg_read(wm, AC97_WM97XX_DIGITISER_RD); 261 u16 data = wm97xx_reg_read(wm, AC97_WM97XX_DIGITISER_RD);
261 if (!(data & WM97XX_PEN_DOWN)) 262 if (!(data & WM97XX_PEN_DOWN))
262 return RC_PENUP; 263 return RC_PENUP;
@@ -264,13 +265,10 @@ static int wm9712_poll_sample(struct wm97xx *wm, int adcsel, int *sample)
264 } 265 }
265 266
266 /* set up digitiser */ 267 /* set up digitiser */
267 if (adcsel & 0x8000)
268 adcsel = ((adcsel & 0x7fff) + 3) << 12;
269
270 if (wm->mach_ops && wm->mach_ops->pre_sample) 268 if (wm->mach_ops && wm->mach_ops->pre_sample)
271 wm->mach_ops->pre_sample(adcsel); 269 wm->mach_ops->pre_sample(adcsel);
272 wm97xx_reg_write(wm, AC97_WM97XX_DIGITISER1, 270 wm97xx_reg_write(wm, AC97_WM97XX_DIGITISER1, (adcsel & WM97XX_ADCSEL_MASK)
273 adcsel | WM97XX_POLL | WM97XX_DELAY(delay)); 271 | WM97XX_POLL | WM97XX_DELAY(delay));
274 272
275 /* wait 3 AC97 time slots + delay for conversion */ 273 /* wait 3 AC97 time slots + delay for conversion */
276 poll_delay(delay); 274 poll_delay(delay);
@@ -296,13 +294,14 @@ static int wm9712_poll_sample(struct wm97xx *wm, int adcsel, int *sample)
296 wm->mach_ops->post_sample(adcsel); 294 wm->mach_ops->post_sample(adcsel);
297 295
298 /* check we have correct sample */ 296 /* check we have correct sample */
299 if ((*sample & WM97XX_ADCSEL_MASK) != adcsel) { 297 if ((*sample ^ adcsel) & WM97XX_ADCSEL_MASK) {
300 dev_dbg(wm->dev, "adc wrong sample, read %x got %x", adcsel, 298 dev_dbg(wm->dev, "adc wrong sample, wanted %x got %x",
301 *sample & WM97XX_ADCSEL_MASK); 299 adcsel & WM97XX_ADCSEL_MASK,
300 *sample & WM97XX_ADCSEL_MASK);
302 return RC_PENUP; 301 return RC_PENUP;
303 } 302 }
304 303
305 if (!(*sample & WM97XX_PEN_DOWN)) { 304 if (wants_pen && !(*sample & WM97XX_PEN_DOWN)) {
306 wm->pen_probably_down = 0; 305 wm->pen_probably_down = 0;
307 return RC_PENUP; 306 return RC_PENUP;
308 } 307 }
@@ -387,16 +386,18 @@ static int wm9712_poll_touch(struct wm97xx *wm, struct wm97xx_data *data)
387 if (rc != RC_VALID) 386 if (rc != RC_VALID)
388 return rc; 387 return rc;
389 } else { 388 } else {
390 rc = wm9712_poll_sample(wm, WM97XX_ADCSEL_X, &data->x); 389 rc = wm9712_poll_sample(wm, WM97XX_ADCSEL_X | WM97XX_PEN_DOWN,
390 &data->x);
391 if (rc != RC_VALID) 391 if (rc != RC_VALID)
392 return rc; 392 return rc;
393 393
394 rc = wm9712_poll_sample(wm, WM97XX_ADCSEL_Y, &data->y); 394 rc = wm9712_poll_sample(wm, WM97XX_ADCSEL_Y | WM97XX_PEN_DOWN,
395 &data->y);
395 if (rc != RC_VALID) 396 if (rc != RC_VALID)
396 return rc; 397 return rc;
397 398
398 if (pil && !five_wire) { 399 if (pil && !five_wire) {
399 rc = wm9712_poll_sample(wm, WM97XX_ADCSEL_PRES, 400 rc = wm9712_poll_sample(wm, WM97XX_ADCSEL_PRES | WM97XX_PEN_DOWN,
400 &data->p); 401 &data->p);
401 if (rc != RC_VALID) 402 if (rc != RC_VALID)
402 return rc; 403 return rc;