| Message ID | 20191016025220.td3xb7oxlfkznxl6@smtp.gmail.com (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
| Series | iio: adc: Add driver support for AD7292 | expand |
On Tue, Oct 15, 2019 at 11:52:23PM -0300, Marcelo Schmitt wrote: > Add a device tree binding doc for AD7292 monitor and control system. > > Signed-off-by: Marcelo Schmitt <marcelo.schmitt1@gmail.com> > --- > .../bindings/iio/adc/adi,ad7292.yaml | 107 ++++++++++++++++++ > MAINTAINERS | 1 + > 2 files changed, 108 insertions(+) > create mode 100644 Documentation/devicetree/bindings/iio/adc/adi,ad7292.yaml > > diff --git a/Documentation/devicetree/bindings/iio/adc/adi,ad7292.yaml b/Documentation/devicetree/bindings/iio/adc/adi,ad7292.yaml > new file mode 100644 > index 000000000000..40028332d9e2 > --- /dev/null > +++ b/Documentation/devicetree/bindings/iio/adc/adi,ad7292.yaml > @@ -0,0 +1,107 @@ > +# SPDX-License-Identifier: GPL-2.0 > +%YAML 1.2 > +--- > +$id: http://devicetree.org/schemas/iio/adc/adi,ad7292.yaml# > +$schema: http://devicetree.org/meta-schemas/core.yaml# > + > +title: Analog Devices AD7292 10-Bit Monitor and Control System > + > +maintainers: > + - Marcelo Schmitt <marcelo.schmitt1@gmail.com> > + > +description: | > + Analog Devices AD7292 10-Bit Monitor and Control System with ADC, DACs, > + Temperature Sensor, and GPIOs > + > + Specifications about the part can be found at: > + https://www.analog.com/media/en/technical-documentation/data-sheets/ad7292.pdf > + > +properties: > + compatible: > + enum: > + - adi,ad7292 > + > + reg: > + maxItems: 1 > + > + vref-supply: > + description: | > + The regulator supply for ADC and DAC reference voltage. > + maxItems: 1 Not necessary, regulator supplies are always 1 item, so drop maxItems. > + > + spi-cpha: > + description: | > + See Documentation/devicetree/bindings/spi/spi-controller.yaml > + maxItems: 1 This is just wrong because spi-cpha is a boolean. Just 'spi-cpha: true' is sufficient. If this device needs this property, then it should probably be required. > + > + '#address-cells': > + const: 1 > + > + '#size-cells': > + const: 0 > + > +required: > + - compatible > + - reg > + > +patternProperties: > + "^channel@[0-7]$": > + type: object > + description: | > + Represents the external channels which are connected to the ADC. > + See Documentation/devicetree/bindings/iio/adc/adc.txt. > + > + properties: > + reg: > + description: | > + The channel number. It can have up to 8 channels numbered from 0 to 7. > + maxItems: 1 > + > + diff-channels: > + description: see Documentation/devicetree/bindings/iio/adc/adc.txt > + maxItems: 1 > + > + required: > + - reg > + > +examples: > + - | > + spi { > + #address-cells = <1>; > + #size-cells = <0>; > + > + ad7292: ad7292@0 { adc@0 > + compatible = "adi,ad7292"; > + reg = <0>; > + > + #address-cells = <1>; > + #size-cells = <0>; > + > + spi-max-frequency = <25000000>; > + vref-supply = <&adc_vref>; > + spi-cpha; > + > + channel@0 { > + reg = <0>; > + diff-channels = <0 1>; > + }; > + channel@2 { > + reg = <2>; > + }; > + channel@3 { > + reg = <3>; > + }; > + channel@4 { > + reg = <4>; > + }; > + channel@5 { > + reg = <5>; > + }; > + channel@6 { > + reg = <6>; > + }; > + channel@7 { > + reg = <7>; > + }; > + }; > + } Missing ';'. Make sure this builds with 'make -k dt_binding_check'. The '-k' is due to some other breakage ATM. Rob
Hi Rob Thanks for the review. I'm having some trouble with the DTC. I installed the DT tool from https://github.com/robherring/dt-schema. Running make -k dt_binding_check goes through all the checks (CHKDT), producing the .example.dts files but then gives errors like: DTC Documentation/devicetree/bindings/arm/calxeda.example.dt.yaml FATAL ERROR: Unknown output format "yaml" make[1]: *** [scripts/Makefile.lib:314: Documentation/devicetree/bindings/arm/calxeda.example.dt.yaml] Error 1 make[1]: *** Deleting file 'Documentation/devicetree/bindings/arm/calxeda.example.dt.yaml' My pip3 installation has: jsonschema jsonschema-3.1.2.dev6+g0d827f3 rfc3987 1.3.8 $HOME/.local/bin is listed in my shell's PATH variable. I was trying to follow the documentation at: Documentation/devicetree/writing-schema.rst Are there any other DTC dependencies that I am missing? On 10/17, Rob Herring wrote: > On Tue, Oct 15, 2019 at 11:52:23PM -0300, Marcelo Schmitt wrote: > > Add a device tree binding doc for AD7292 monitor and control system. > > > > Signed-off-by: Marcelo Schmitt <marcelo.schmitt1@gmail.com> > > --- > > .../bindings/iio/adc/adi,ad7292.yaml | 107 ++++++++++++++++++ > > MAINTAINERS | 1 + > > 2 files changed, 108 insertions(+) > > create mode 100644 Documentation/devicetree/bindings/iio/adc/adi,ad7292.yaml > > > > diff --git a/Documentation/devicetree/bindings/iio/adc/adi,ad7292.yaml b/Documentation/devicetree/bindings/iio/adc/adi,ad7292.yaml > > new file mode 100644 > > index 000000000000..40028332d9e2 > > --- /dev/null > > +++ b/Documentation/devicetree/bindings/iio/adc/adi,ad7292.yaml > > @@ -0,0 +1,107 @@ > > +# SPDX-License-Identifier: GPL-2.0 > > +%YAML 1.2 > > +--- > > +$id: http://devicetree.org/schemas/iio/adc/adi,ad7292.yaml# > > +$schema: http://devicetree.org/meta-schemas/core.yaml# > > + > > +title: Analog Devices AD7292 10-Bit Monitor and Control System > > + > > +maintainers: > > + - Marcelo Schmitt <marcelo.schmitt1@gmail.com> > > + > > +description: | > > + Analog Devices AD7292 10-Bit Monitor and Control System with ADC, DACs, > > + Temperature Sensor, and GPIOs > > + > > + Specifications about the part can be found at: > > + https://www.analog.com/media/en/technical-documentation/data-sheets/ad7292.pdf > > + > > +properties: > > + compatible: > > + enum: > > + - adi,ad7292 > > + > > + reg: > > + maxItems: 1 > > + > > + vref-supply: > > + description: | > > + The regulator supply for ADC and DAC reference voltage. > > + maxItems: 1 > > Not necessary, regulator supplies are always 1 item, so drop maxItems. > > > + > > + spi-cpha: > > + description: | > > + See Documentation/devicetree/bindings/spi/spi-controller.yaml > > + maxItems: 1 > > This is just wrong because spi-cpha is a boolean. Just 'spi-cpha: true' > is sufficient. If this device needs this property, then it should > probably be required. > > > + > > + '#address-cells': > > + const: 1 > > + > > + '#size-cells': > > + const: 0 > > + > > +required: > > + - compatible > > + - reg > > + > > +patternProperties: > > + "^channel@[0-7]$": > > + type: object > > + description: | > > + Represents the external channels which are connected to the ADC. > > + See Documentation/devicetree/bindings/iio/adc/adc.txt. > > + > > + properties: > > + reg: > > + description: | > > + The channel number. It can have up to 8 channels numbered from 0 to 7. > > + maxItems: 1 > > + > > + diff-channels: > > + description: see Documentation/devicetree/bindings/iio/adc/adc.txt > > + maxItems: 1 > > + > > + required: > > + - reg > > + > > +examples: > > + - | > > + spi { > > + #address-cells = <1>; > > + #size-cells = <0>; > > + > > + ad7292: ad7292@0 { > > adc@0 > > > + compatible = "adi,ad7292"; > > + reg = <0>; > > + > > + #address-cells = <1>; > > + #size-cells = <0>; > > + > > + spi-max-frequency = <25000000>; > > + vref-supply = <&adc_vref>; > > + spi-cpha; > > + > > + channel@0 { > > + reg = <0>; > > + diff-channels = <0 1>; > > + }; > > + channel@2 { > > + reg = <2>; > > + }; > > + channel@3 { > > + reg = <3>; > > + }; > > + channel@4 { > > + reg = <4>; > > + }; > > + channel@5 { > > + reg = <5>; > > + }; > > + channel@6 { > > + reg = <6>; > > + }; > > + channel@7 { > > + reg = <7>; > > + }; > > + }; > > + } > > Missing ';'. Make sure this builds with 'make -k dt_binding_check'. The > '-k' is due to some other breakage ATM. > > Rob
On Sat, Oct 19, 2019 at 10:07 AM Marcelo Schmitt <marcelo.schmitt1@gmail.com> wrote: > > Hi Rob > > Thanks for the review. > > I'm having some trouble with the DTC. > I installed the DT tool from https://github.com/robherring/dt-schema. > Running make -k dt_binding_check goes through all the checks (CHKDT), producing > the .example.dts files but then gives errors like: > > DTC Documentation/devicetree/bindings/arm/calxeda.example.dt.yaml > FATAL ERROR: Unknown output format "yaml" > make[1]: *** [scripts/Makefile.lib:314: Documentation/devicetree/bindings/arm/calxeda.example.dt.yaml] Error 1 > make[1]: *** Deleting file 'Documentation/devicetree/bindings/arm/calxeda.example.dt.yaml' > > My pip3 installation has: > jsonschema jsonschema-3.1.2.dev6+g0d827f3 > rfc3987 1.3.8 > > $HOME/.local/bin is listed in my shell's PATH variable. > > I was trying to follow the documentation at: > Documentation/devicetree/writing-schema.rst > > Are there any other DTC dependencies that I am missing? Yes, libyaml. See Documentation/devicetree/writing-schema.rst. Rob
Hi, I ran the DTC and CHECK for AD7292 schema however, the target '__build' did not run due to errors found in regulator/fixed-regulator.yaml and arm/allwinner,sun4i-a10-csi.yaml. I recall seeing something about the maxItems requirement over regulator supplies being changed on the iio mailing list, so I updated my repo locally, cloned and reinstalled the dt-schema toolset. However, I still can't make it go through the '__build' target. Python 3.7.5rc1 is my default python and I got the following pip3 packages installed: ruamel.yaml 0.16.5 ruamel.yaml.clib 0.2.0 rfc3987 1.3.8 jsonschema 3.0.1 dtschema 0.0.1 at $HOME/<iio repo dir>/dt-schema Debian Bullseye packages installed: python3-yaml/testing,now 5.1.2-1 libyaml-dev/testing,now 0.2.2-1 I was only able to run DTC after installing the libyaml-dev package, so I think it might be worth to add it to the project dependencies at https://github.com/robherring/dt-schema. apt-get install libyaml-dev Thanks, Marcelo On 10/20, Rob Herring wrote: > On Sat, Oct 19, 2019 at 10:07 AM Marcelo Schmitt > <marcelo.schmitt1@gmail.com> wrote: > > > > Hi Rob > > > > Thanks for the review. > > > > I'm having some trouble with the DTC. > > I installed the DT tool from https://github.com/robherring/dt-schema. > > Running make -k dt_binding_check goes through all the checks (CHKDT), producing > > the .example.dts files but then gives errors like: > > > > DTC Documentation/devicetree/bindings/arm/calxeda.example.dt.yaml > > FATAL ERROR: Unknown output format "yaml" > > make[1]: *** [scripts/Makefile.lib:314: Documentation/devicetree/bindings/arm/calxeda.example.dt.yaml] Error 1 > > make[1]: *** Deleting file 'Documentation/devicetree/bindings/arm/calxeda.example.dt.yaml' > > > > My pip3 installation has: > > jsonschema jsonschema-3.1.2.dev6+g0d827f3 > > rfc3987 1.3.8 > > > > $HOME/.local/bin is listed in my shell's PATH variable. > > > > I was trying to follow the documentation at: > > Documentation/devicetree/writing-schema.rst > > > > Are there any other DTC dependencies that I am missing? > > Yes, libyaml. See Documentation/devicetree/writing-schema.rst. > > Rob
On Tue, Oct 22, 2019 at 9:06 AM Marcelo Schmitt <marcelo.schmitt1@gmail.com> wrote: > > Hi, > > I ran the DTC and CHECK for AD7292 schema however, the target '__build' > did not run due to errors found in regulator/fixed-regulator.yaml and > arm/allwinner,sun4i-a10-csi.yaml. Fixes for those are still pending in -next. Use 'make -k' and ignore those. > > I recall seeing something about the maxItems requirement over regulator > supplies being changed on the iio mailing list, so I updated my repo > locally, cloned and reinstalled the dt-schema toolset. However, I still > can't make it go through the '__build' target. > > Python 3.7.5rc1 is my default python and I got the following pip3 > packages installed: > > ruamel.yaml 0.16.5 > ruamel.yaml.clib 0.2.0 > rfc3987 1.3.8 > jsonschema 3.0.1 > dtschema 0.0.1 at $HOME/<iio repo dir>/dt-schema > > Debian Bullseye packages installed: > python3-yaml/testing,now 5.1.2-1 > libyaml-dev/testing,now 0.2.2-1 > > I was only able to run DTC after installing the libyaml-dev package, so > I think it might be worth to add it to the project dependencies at > https://github.com/robherring/dt-schema. Strictly speaking, it's not a dependency for dt-schema. It's documented in Documentation/devicetree/writing-schema.rst. I've added a pointer to that in bindings/submitting-patches.txt. I'm not sure how else to make it more obvious. BTW, You will get a useful error message if libyaml is missing when building 'make dtbs_check'. I need to make that work for dt_binding_check. > apt-get install libyaml-dev You need the lib too, but that tends to already be installed. IIRC, installing the headers doesn't install the lib automatically. In any case, I wanted to avoid putting in distro specific instructions in the kernel. Rob
Hi Rob, OK, thanks for the explanation. I indeed missed some details from the documentation. I will be more careful on my next readings. I see there are other documentation files at Documentation/devicetree/ and Documentation/devicetree/bindings/. Besides these, would you recommend other documentation and/or material for those who want to write dt-bindings that validate with dt-schema? Thanks in advance, Marcelo On 10/22, Rob Herring wrote: > On Tue, Oct 22, 2019 at 9:06 AM Marcelo Schmitt > <marcelo.schmitt1@gmail.com> wrote: > > > > Hi, > > > > I ran the DTC and CHECK for AD7292 schema however, the target '__build' > > did not run due to errors found in regulator/fixed-regulator.yaml and > > arm/allwinner,sun4i-a10-csi.yaml. > > Fixes for those are still pending in -next. Use 'make -k' and ignore those. > > > > > I recall seeing something about the maxItems requirement over regulator > > supplies being changed on the iio mailing list, so I updated my repo > > locally, cloned and reinstalled the dt-schema toolset. However, I still > > can't make it go through the '__build' target. > > > > Python 3.7.5rc1 is my default python and I got the following pip3 > > packages installed: > > > > ruamel.yaml 0.16.5 > > ruamel.yaml.clib 0.2.0 > > rfc3987 1.3.8 > > jsonschema 3.0.1 > > dtschema 0.0.1 at $HOME/<iio repo dir>/dt-schema > > > > Debian Bullseye packages installed: > > python3-yaml/testing,now 5.1.2-1 > > libyaml-dev/testing,now 0.2.2-1 > > > > I was only able to run DTC after installing the libyaml-dev package, so > > I think it might be worth to add it to the project dependencies at > > https://github.com/robherring/dt-schema. > > Strictly speaking, it's not a dependency for dt-schema. It's > documented in Documentation/devicetree/writing-schema.rst. I've added > a pointer to that in bindings/submitting-patches.txt. I'm not sure how > else to make it more obvious. > > BTW, You will get a useful error message if libyaml is missing when > building 'make dtbs_check'. I need to make that work for > dt_binding_check. > > > apt-get install libyaml-dev > > You need the lib too, but that tends to already be installed. IIRC, > installing the headers doesn't install the lib automatically. > > In any case, I wanted to avoid putting in distro specific instructions > in the kernel. > > Rob > > -- > You received this message because you are subscribed to the Google Groups "Kernel USP" group. > To unsubscribe from this group and stop receiving emails from it, send an email to kernel-usp+unsubscribe@googlegroups.com. > To view this discussion on the web visit https://groups.google.com/d/msgid/kernel-usp/CAL_JsqLf8kpOu0MQN-TAhQkiZCGfMKWmztnHNo%2B2BAVqfX8yGQ%40mail.gmail.com.
diff --git a/Documentation/devicetree/bindings/iio/adc/adi,ad7292.yaml b/Documentation/devicetree/bindings/iio/adc/adi,ad7292.yaml new file mode 100644 index 000000000000..40028332d9e2 --- /dev/null +++ b/Documentation/devicetree/bindings/iio/adc/adi,ad7292.yaml @@ -0,0 +1,107 @@ +# SPDX-License-Identifier: GPL-2.0 +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/iio/adc/adi,ad7292.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: Analog Devices AD7292 10-Bit Monitor and Control System + +maintainers: + - Marcelo Schmitt <marcelo.schmitt1@gmail.com> + +description: | + Analog Devices AD7292 10-Bit Monitor and Control System with ADC, DACs, + Temperature Sensor, and GPIOs + + Specifications about the part can be found at: + https://www.analog.com/media/en/technical-documentation/data-sheets/ad7292.pdf + +properties: + compatible: + enum: + - adi,ad7292 + + reg: + maxItems: 1 + + vref-supply: + description: | + The regulator supply for ADC and DAC reference voltage. + maxItems: 1 + + spi-cpha: + description: | + See Documentation/devicetree/bindings/spi/spi-controller.yaml + maxItems: 1 + + '#address-cells': + const: 1 + + '#size-cells': + const: 0 + +required: + - compatible + - reg + +patternProperties: + "^channel@[0-7]$": + type: object + description: | + Represents the external channels which are connected to the ADC. + See Documentation/devicetree/bindings/iio/adc/adc.txt. + + properties: + reg: + description: | + The channel number. It can have up to 8 channels numbered from 0 to 7. + maxItems: 1 + + diff-channels: + description: see Documentation/devicetree/bindings/iio/adc/adc.txt + maxItems: 1 + + required: + - reg + +examples: + - | + spi { + #address-cells = <1>; + #size-cells = <0>; + + ad7292: ad7292@0 { + compatible = "adi,ad7292"; + reg = <0>; + + #address-cells = <1>; + #size-cells = <0>; + + spi-max-frequency = <25000000>; + vref-supply = <&adc_vref>; + spi-cpha; + + channel@0 { + reg = <0>; + diff-channels = <0 1>; + }; + channel@2 { + reg = <2>; + }; + channel@3 { + reg = <3>; + }; + channel@4 { + reg = <4>; + }; + channel@5 { + reg = <5>; + }; + channel@6 { + reg = <6>; + }; + channel@7 { + reg = <7>; + }; + }; + } diff --git a/MAINTAINERS b/MAINTAINERS index e78317a5f4f1..5941cfc0d6f7 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -819,6 +819,7 @@ L: linux-iio@vger.kernel.org W: http://ez.analog.com/community/linux-device-drivers S: Supported F: drivers/iio/adc/ad7292.c +F: Documentation/devicetree/bindings/iio/adc/adi,ad7292.yaml ANALOG DEVICES INC AD7606 DRIVER M: Stefan Popa <stefan.popa@analog.com>
Add a device tree binding doc for AD7292 monitor and control system. Signed-off-by: Marcelo Schmitt <marcelo.schmitt1@gmail.com> --- .../bindings/iio/adc/adi,ad7292.yaml | 107 ++++++++++++++++++ MAINTAINERS | 1 + 2 files changed, 108 insertions(+) create mode 100644 Documentation/devicetree/bindings/iio/adc/adi,ad7292.yaml