On Mon, 2024-09-09 at 14:17 -0400, Frank Li wrote:
> On Mon, Sep 09, 2024 at 05:36:07PM +0100, Martyn Welch wrote:
> > The ls1028ardb uses the TI ina220 power monitor. This device has an
> > IIO and
> > hwmon drivers, but can't be used with both at the same time.
>
> > To enable us
> > to utilise the iio framework, but also access power information via
> > the
> > hwmon framework, add an iio-hwmon map. This allows the IIO driver
> > to be
> > used for the ina220, with the iio-hwmon driver mapping the data
> > from the
> > IIO framework into hwmon.
>
> Can you simply said:
>
> Add an iio-hwmon map to utilise the iio framework and access power
> information via the hwmon framework at the same time.
>
> Frank
>
Sure
Martyn
> > Signed-off-by: Martyn Welch <martyn.welch@xxxxxxxxxxxxx>
> > ---
> > arch/arm64/boot/dts/freescale/fsl-ls1028a-rdb.dts | 9 ++++++++-
> > 1 file changed, 8 insertions(+), 1 deletion(-)
> >
> > diff --git a/arch/arm64/boot/dts/freescale/fsl-ls1028a-rdb.dts
> > b/arch/arm64/boot/dts/freescale/fsl-ls1028a-rdb.dts
> > index ecd2c1e..b062de5 100644
> > --- a/arch/arm64/boot/dts/freescale/fsl-ls1028a-rdb.dts
> > +++ b/arch/arm64/boot/dts/freescale/fsl-ls1028a-rdb.dts
> > @@ -94,6 +94,12 @@ simple-audio-card,codec {
> > system-clock-frequency = <25000000>;
> > };
> > };
> > +
> > + iio-hwmon {
> > + compatible = "iio-hwmon";
> > + io-channels = <&ina220 0>, <&ina220 1>,
> > + <&ina220 2>, <&ina220 3>;
> > + };
> > };
> >
> > &can0 {
> > @@ -222,8 +228,9 @@ i2c@2 {
> > #size-cells = <0>;
> > reg = <0x02>;
> >
> > - current-monitor@40 {
> > + ina220: current-monitor@40 {
> > compatible = "ti,ina220";
> > + #io-channel-cells = <1>;
> > reg = <0x40>;
> > shunt-resistor = <500>;
> > };
