diff options
author | Richard Röjfors <richard.rojfors.ext@mocean-labs.com> | 2009-08-05 01:34:10 -0400 |
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committer | Dmitry Torokhov <dmitry.torokhov@gmail.com> | 2009-08-05 01:35:49 -0400 |
commit | cf5f439b48f82c230dcd81d0061e00664cbb6d39 (patch) | |
tree | 3fb4c4854b1191ede62007a6616921ce4be2e1bd /drivers/input/touchscreen/tsc2007.c | |
parent | d570e9ef84e559b09e729f27f5381b6868f6cc5f (diff) |
Input: tsc2007 - check if I2C communication works during probe
Check the result when sending the power down command to the controller.
Signed-off-by: Richard Röjfors <richard.rojfors.ext@mocean-labs.com>
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
Diffstat (limited to 'drivers/input/touchscreen/tsc2007.c')
-rw-r--r-- | drivers/input/touchscreen/tsc2007.c | 8 |
1 files changed, 5 insertions, 3 deletions
diff --git a/drivers/input/touchscreen/tsc2007.c b/drivers/input/touchscreen/tsc2007.c index 3714d19f1027..7ef0d1420d3c 100644 --- a/drivers/input/touchscreen/tsc2007.c +++ b/drivers/input/touchscreen/tsc2007.c | |||
@@ -319,15 +319,17 @@ static int __devinit tsc2007_probe(struct i2c_client *client, | |||
319 | goto err_free_mem; | 319 | goto err_free_mem; |
320 | } | 320 | } |
321 | 321 | ||
322 | /* Prepare for touch readings - power down ADC and enable PENIRQ */ | ||
323 | err = tsc2007_xfer(ts, PWRDOWN); | ||
324 | if (err < 0) | ||
325 | goto err_free_irq; | ||
326 | |||
322 | err = input_register_device(input_dev); | 327 | err = input_register_device(input_dev); |
323 | if (err) | 328 | if (err) |
324 | goto err_free_irq; | 329 | goto err_free_irq; |
325 | 330 | ||
326 | i2c_set_clientdata(client, ts); | 331 | i2c_set_clientdata(client, ts); |
327 | 332 | ||
328 | /* Prepare for touch readings - power down ADC and enable PENIRQ */ | ||
329 | tsc2007_xfer(ts, PWRDOWN); | ||
330 | |||
331 | return 0; | 333 | return 0; |
332 | 334 | ||
333 | err_free_irq: | 335 | err_free_irq: |