* Zubair Lutfullah | 2013-08-13 21:05:03 [+0100]: >diff --git a/drivers/iio/adc/ti_am335x_adc.c b/drivers/iio/adc/ti_am335x_adc.c >index 3ceac3e..0d7e313 100644 >--- a/drivers/iio/adc/ti_am335x_adc.c >+++ b/drivers/iio/adc/ti_am335x_adc.c … >+static int tiadc_buffer_postdisable(struct iio_dev *indio_dev) >+{ >+ struct tiadc_device *adc_dev = iio_priv(indio_dev); >+ int config; >+ >+ tiadc_step_config(indio_dev); >+ if (adc_dev->mfd_tscadc->tsc_cell == -1) { >+ config = tiadc_readl(adc_dev, REG_CTRL); >+ tiadc_writel(adc_dev, REG_CTRL, (config | CNTRLREG_TSCSSENB)); >+ } This kind of check is bad. The tsc cell may have been created but the driver not enabled or loaded. Further you should document why you need to enable / disable the ADC in this places and only if the TSC part is not active. Sebastian -- To unsubscribe from this list: send the line "unsubscribe linux-input" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html