* 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
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