[PATCH 0/3] mxs-lradc: Add support for current sources
Stefan Wahren
stefan.wahren at i2se.com
Fri Apr 29 08:12:53 PDT 2016
Hi Harald,
Am 22.04.2016 um 15:52 schrieb Harald Geyer:
> Patch 1/3 changes the driver and updates the binding documentation
> (I guess it is still in staging.)
>
> Patches 2/3 and 3/3 add the devicetree nodes to imx23 and imx28 boards.
> I'd like to get input whether this is actually desired. On boards where
> these regulators would never be enabled this costs a few extra bytes of
> RAM for allocation of the device data, because the nodes can't be easily
> removed in .dts files which are including the .dtsi files. The alternative
> is to add the new nodes to many .dts files, which would be a lot code
> duplication.
if i get it right the real intention of this patch series is to make the
mxs-lradc provide resistance values instead of voltages. So how about
dropping the whole regulator stuff and provide the values as
IIO_RESISTANCE via iio interface?
Btw this feature should be only added to dts files where is actually used.
Regards
Stefan
>
> Harald Geyer (3):
> iio: mxs-lradc: Add regulators for current sources
> ARM: dts: imx23: Provide regulators for the current sources of the
> LRADC
> ARM: dts: imx28: Provide regulators for the current sources of the
> LRADC
>
> .../bindings/staging/iio/adc/mxs-lradc.txt | 29 ++++
> arch/arm/boot/dts/imx23.dtsi | 8 ++
> arch/arm/boot/dts/imx28.dtsi | 8 ++
> drivers/iio/adc/Kconfig | 1 +
> drivers/iio/adc/mxs-lradc.c | 152 +++++++++++++++++++++
> 5 files changed, 198 insertions(+)
>
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