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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>
This commit is contained in:
Richard Röjfors 2009-08-04 22:34:10 -07:00 committed by Dmitry Torokhov
parent d570e9ef84
commit cf5f439b48
1 changed files with 5 additions and 3 deletions
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8
drivers/input/touchscreen/tsc2007.c
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@ -319,15 +319,17 @@ static int __devinit tsc2007_probe(struct i2c_client *client,
goto err_free_mem;
}
/* Prepare for touch readings - power down ADC and enable PENIRQ */
err = tsc2007_xfer(ts, PWRDOWN);
if (err < 0)
goto err_free_irq;
err = input_register_device(input_dev);
if (err)
goto err_free_irq;
i2c_set_clientdata(client, ts);
/* Prepare for touch readings - power down ADC and enable PENIRQ */
tsc2007_xfer(ts, PWRDOWN);
return 0;
err_free_irq: