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>
diff --git a/drivers/input/touchscreen/tsc2007.c b/drivers/input/touchscreen/tsc2007.c
index 3714d19..7ef0d14 100644
--- a/drivers/input/touchscreen/tsc2007.c
+++ b/drivers/input/touchscreen/tsc2007.c
@@ -319,15 +319,17 @@
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: