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| author | Dmitry Torokhov <dmitry.torokhov@gmail.com> | 2009-08-27 22:00:20 -0700 |
|---|---|---|
| committer | Dmitry Torokhov <dmitry.torokhov@gmail.com> | 2009-08-27 22:00:20 -0700 |
| commit | 4b61bb575b1fb42ab1df228ae7812e5135f656da (patch) | |
| tree | 03456466e6f678456ea462a7da4b352d1aa03aa3 /drivers/input/touchscreen/ucb1400_ts.c | |
| parent | 805423e84e900e56c834aadee61a020b0d5092c3 (diff) | |
| parent | 326ba5010a5429a5a528b268b36a5900d4ab0eba (diff) | |
Merge commit 'v2.6.31-rc8' into next
Diffstat (limited to 'drivers/input/touchscreen/ucb1400_ts.c')
| -rw-r--r-- | drivers/input/touchscreen/ucb1400_ts.c | 17 |
1 files changed, 13 insertions, 4 deletions
diff --git a/drivers/input/touchscreen/ucb1400_ts.c b/drivers/input/touchscreen/ucb1400_ts.c index e85483578bd..095f84b1f56 100644 --- a/drivers/input/touchscreen/ucb1400_ts.c +++ b/drivers/input/touchscreen/ucb1400_ts.c @@ -171,11 +171,11 @@ static void ucb1400_handle_pending_irq(struct ucb1400_ts *ucb) ucb1400_reg_write(ucb->ac97, UCB_IE_CLEAR, isr); ucb1400_reg_write(ucb->ac97, UCB_IE_CLEAR, 0); - if (isr & UCB_IE_TSPX) { + if (isr & UCB_IE_TSPX) ucb1400_ts_irq_disable(ucb->ac97); - enable_irq(ucb->irq); - } else - printk(KERN_ERR "ucb1400: unexpected IE_STATUS = %#x\n", isr); + else + dev_dbg(&ucb->ts_idev->dev, "ucb1400: unexpected IE_STATUS = %#x\n", isr); + enable_irq(ucb->irq); } static int ucb1400_ts_thread(void *_ucb) @@ -346,6 +346,7 @@ static int ucb1400_ts_detect_irq(struct ucb1400_ts *ucb) static int ucb1400_ts_probe(struct platform_device *dev) { int error, x_res, y_res; + u16 fcsr; struct ucb1400_ts *ucb = dev->dev.platform_data; ucb->ts_idev = input_allocate_device(); @@ -383,6 +384,14 @@ static int ucb1400_ts_probe(struct platform_device *dev) ucb->ts_idev->evbit[0] = BIT_MASK(EV_ABS) | BIT_MASK(EV_KEY); ucb->ts_idev->keybit[BIT_WORD(BTN_TOUCH)] = BIT_MASK(BTN_TOUCH); + /* + * Enable ADC filter to prevent horrible jitter on Colibri. + * This also further reduces jitter on boards where ADCSYNC + * pin is connected. + */ + fcsr = ucb1400_reg_read(ucb->ac97, UCB_FCSR); + ucb1400_reg_write(ucb->ac97, UCB_FCSR, fcsr | UCB_FCSR_AVE); + ucb1400_adc_enable(ucb->ac97); x_res = ucb1400_ts_read_xres(ucb); y_res = ucb1400_ts_read_yres(ucb); |