| Message ID | 20181115135013.30723-2-fe@dev.tdt.de (mailing list archive) |
|---|---|
| State | Superseded |
| Headers | show |
| Series | hwmon: Add device tree support for adcxx | expand |
On Thu, Nov 15, 2018 at 02:50:12PM +0100, Florian Eckert wrote: > Document the devicetree bindings for the adcxx. > > Signed-off-by: Florian Eckert <fe@dev.tdt.de> > --- > Documentation/devicetree/bindings/hwmon/adcxx.txt | 24 +++++++++++++++++++++++ > 1 file changed, 24 insertions(+) > create mode 100644 Documentation/devicetree/bindings/hwmon/adcxx.txt > > diff --git a/Documentation/devicetree/bindings/hwmon/adcxx.txt b/Documentation/devicetree/bindings/hwmon/adcxx.txt > new file mode 100644 > index 000000000000..a94a5fe21b6d > --- /dev/null > +++ b/Documentation/devicetree/bindings/hwmon/adcxx.txt > @@ -0,0 +1,24 @@ > +adcxx properties Needs a better description of what this h/w is. ADCs go in iio/adc/ > + > +Required properties: > +- compatible: Must be one of the following: > + - "national,adcxx1s" for adcxx1s > + - "national,adcxx2s" for adcxx2s > + - "national,adcxx4s" for adcxx4s > + - "national,adcxx8s" for adcxx8s Don't use wildcards in compatible strings. > +- reg: SPI address for chip > + > +Optional properties: > + > +- vref-supply > + The external reference in microvolt for this device is set to this value. > + If it does not exists the reference will be set to 3300000uV (3.3V). > + > +Example: > + > +adc@6 { > + compatible = "national,adcxx2s"; > + reg = <6 0>; ? SPI addresses are a single cell. > + spi-max-frequency = <1000000>; > + vref-supply = <&vref>; > +}; > -- > 2.11.0 >
On Sat, Nov 17, 2018 at 08:40:41AM -0600, Rob Herring wrote: > On Thu, Nov 15, 2018 at 02:50:12PM +0100, Florian Eckert wrote: > > Document the devicetree bindings for the adcxx. > > > > Signed-off-by: Florian Eckert <fe@dev.tdt.de> > > --- > > Documentation/devicetree/bindings/hwmon/adcxx.txt | 24 +++++++++++++++++++++++ > > 1 file changed, 24 insertions(+) > > create mode 100644 Documentation/devicetree/bindings/hwmon/adcxx.txt > > > > diff --git a/Documentation/devicetree/bindings/hwmon/adcxx.txt b/Documentation/devicetree/bindings/hwmon/adcxx.txt > > new file mode 100644 > > index 000000000000..a94a5fe21b6d > > --- /dev/null > > +++ b/Documentation/devicetree/bindings/hwmon/adcxx.txt > > @@ -0,0 +1,24 @@ > > +adcxx properties > > Needs a better description of what this h/w is. > > ADCs go in iio/adc/ > FWIW, the hwmon driver for this chip series would be a perfect candidate for a conversion to an iio driver. The driver predates the existence of iio. Florian, any interest doing that ? It is quite likely that the chip isn't used for hardware monitoring. > > + > > +Required properties: > > +- compatible: Must be one of the following: > > + - "national,adcxx1s" for adcxx1s > > + - "national,adcxx2s" for adcxx2s > > + - "national,adcxx4s" for adcxx4s > > + - "national,adcxx8s" for adcxx8s > > Don't use wildcards in compatible strings. > Should we list all of them ? ADC121S021 ADC121S051 ADC121S101 ADC101S021 ADC101S051 ADC101S101 ADC081S021 ADC081S051 ADC081S101 ADC121S625 ADC121S655 ADC121S705 ADC122S021 ADC122S051 ADC122S101 ADC102S021 ADC102S051 ADC102S101 ADC082S021 ADC082S051 ADC082S101 ADC122S625 ADC122S655 ADC122S706 ADC124S021 ADC124S051 ADC124S101 ADC104S021 ADC104S051 ADC104S101 ADC084S021 ADC084S051 ADC084S101 ADC128S022 ADC128S052 ADC128S102 I hope I didn't miss any. Guenter > > +- reg: SPI address for chip > > + > > +Optional properties: > > + > > +- vref-supply > > + The external reference in microvolt for this device is set to this value. > > + If it does not exists the reference will be set to 3300000uV (3.3V). > > + > > +Example: > > + > > +adc@6 { > > + compatible = "national,adcxx2s"; > > + reg = <6 0>; > > ? SPI addresses are a single cell. > > > + spi-max-frequency = <1000000>; > > + vref-supply = <&vref>; > > +}; > > -- > > 2.11.0 > >
Hello Guenter, >> >> Needs a better description of what this h/w is. >> >> ADCs go in iio/adc/ >> > FWIW, the hwmon driver for this chip series would be a perfect > candidate > for a conversion to an iio driver. The driver predates the existence of > iio. > > Florian, any interest doing that ? It is quite likely that the chip > isn't > used for hardware monitoring. I will have a look on the next week about your suggestion to port this device to iio/adc. - Florian
diff --git a/Documentation/devicetree/bindings/hwmon/adcxx.txt b/Documentation/devicetree/bindings/hwmon/adcxx.txt new file mode 100644 index 000000000000..a94a5fe21b6d --- /dev/null +++ b/Documentation/devicetree/bindings/hwmon/adcxx.txt @@ -0,0 +1,24 @@ +adcxx properties + +Required properties: +- compatible: Must be one of the following: + - "national,adcxx1s" for adcxx1s + - "national,adcxx2s" for adcxx2s + - "national,adcxx4s" for adcxx4s + - "national,adcxx8s" for adcxx8s +- reg: SPI address for chip + +Optional properties: + +- vref-supply + The external reference in microvolt for this device is set to this value. + If it does not exists the reference will be set to 3300000uV (3.3V). + +Example: + +adc@6 { + compatible = "national,adcxx2s"; + reg = <6 0>; + spi-max-frequency = <1000000>; + vref-supply = <&vref>; +};
Document the devicetree bindings for the adcxx. Signed-off-by: Florian Eckert <fe@dev.tdt.de> --- Documentation/devicetree/bindings/hwmon/adcxx.txt | 24 +++++++++++++++++++++++ 1 file changed, 24 insertions(+) create mode 100644 Documentation/devicetree/bindings/hwmon/adcxx.txt