Thomas Betker schrieb am 15.04.2015 um 21:11: > From: Thomas Betker <thomas.betker@xxxxxxxxxxxxxxxxx> > > The scaling factor for VREFP is 3.0/4096, not 1.0/4096; fix this to get > correct readings. > Hi Thomas, I just had a look at the datasheet [1], table 3-1 on page 37, and get the feeling that this scaling factor also applies to the VREFN channel. What is your opinion? Thanks, Hartmut [1] http://www.xilinx.com/support/documentation/user_guides/ug480_7Series_XADC.pdf > Signed-off-by: Thomas Betker <thomas.betker@xxxxxxxxxxxxxxxxx> > --- > drivers/iio/adc/xilinx-xadc-core.c | 1 + > 1 file changed, 1 insertion(+) > > diff --git a/drivers/iio/adc/xilinx-xadc-core.c b/drivers/iio/adc/xilinx-xadc-core.c > index 0ad7b50..6fa629b 100644 > --- a/drivers/iio/adc/xilinx-xadc-core.c > +++ b/drivers/iio/adc/xilinx-xadc-core.c > @@ -856,6 +856,7 @@ static int xadc_read_raw(struct iio_dev *indio_dev, > switch (chan->address) { > case XADC_REG_VCCINT: > case XADC_REG_VCCAUX: > + case XADC_REG_VREFP: > case XADC_REG_VCCBRAM: > case XADC_REG_VCCPINT: > case XADC_REG_VCCPAUX: > -- To unsubscribe from this list: send the line "unsubscribe linux-iio" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
