On Sun, Aug 9, 2020 at 5:20 AM Jonathan Cameron <jic23@xxxxxxxxxx> wrote: > > From: Jonathan Cameron <Jonathan.Cameron@xxxxxxxxxx> > > Simple binding conversion. Only addition was #io-channel-cells to > allow for potential consumers of the channels on this device. > > Signed-off-by: Jonathan Cameron <Jonathan.Cameron@xxxxxxxxxx> > Cc: Akinobu Mita <akinobu.mita@xxxxxxxxx> > --- > .../bindings/iio/adc/ti,adc12138.yaml | 85 +++++++++++++++++++ > .../bindings/iio/adc/ti-adc12138.txt | 37 -------- > 2 files changed, 85 insertions(+), 37 deletions(-) > > diff --git a/Documentation/devicetree/bindings/iio/adc/ti,adc12138.yaml b/Documentation/devicetree/bindings/iio/adc/ti,adc12138.yaml > new file mode 100644 > index 000000000000..3e8c43aa8ef3 > --- /dev/null > +++ b/Documentation/devicetree/bindings/iio/adc/ti,adc12138.yaml > @@ -0,0 +1,85 @@ > +# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause) > +%YAML 1.2 > +--- > +$id: http://devicetree.org/schemas/iio/adc/ti,adc12138.yaml# > +$schema: http://devicetree.org/meta-schemas/core.yaml# > + > +title: Texas Instruments ADC12138 and similar self-calibrating ADCs > + > +maintainers: > + - Akinobu Mita <akinobu.mita@xxxxxxxxx> > + > +description: | > + 13 bit ADCs with 1, 2 or 8 inputs and self calibrating circuitry to > + correct for linearity, zero and full scale errors. > + > +properties: > + compatible: > + enum: > + - ti,adc12130 > + - ti,adc12132 > + - ti,adc12138 > + > + reg: > + maxItems: 1 > + > + interrupts: > + maxItems: 1 > + description: End of Conversion (EOC) interrupt > + > + clocks: > + maxItems: 1 > + description: Conversion clock input. > + > + spi-max-frequency: true > + > + vref-p-supply: > + description: The regulator supply for positive analog voltage reference > + > + vref-n-suppy: typo > + description: | > + The regulator supply for negative analog voltage reference > + (Note that this must not go below GND or exceed vref-p) > + If not specified, this is assumed to be analog ground. > + > + ti,acquisition-time: > + $ref: /schemas/types.yaml#/definitions/uint32 > + enum: [ 6, 10, 18, 34] Inconsistent spacing for brackets. 0 or 1 space is fine. > + description: | > + The number of conversion clock periods for the S/H's acquisition time. > + For high source impedances, this value can be increased to 18 or 34. > + For less ADC accuracy and/or slower CCLK frequencies this value may be > + decreased to 6. See section 6.0 INPUT SOURCE RESISTANCE in the > + datasheet for details. > + > + "#io-channel-cells": > + const: 1 > + > +required: > + - compatible > + - reg > + - interrupts > + - clocks > + - vref-p-supply > + > +additionalProperties: false > + > +examples: > + - | > + spi { > + #address-cells = <1>; > + #size-cells = <0>; > + > + adc@0 { > + compatible = "ti,adc12138"; > + reg = <0>; > + interrupts = <28 IRQ_TYPE_EDGE_RISING>; > + interrupt-parent = <&gpio1>; > + clocks = <&cclk>; > + vref-p-supply = <&ldo4_reg>; > + spi-max-frequency = <5000000>; > + ti,acquisition-time = <6>; > + #io-channel-cells = <1>; > + }; > + }; > +... > diff --git a/Documentation/devicetree/bindings/iio/adc/ti-adc12138.txt b/Documentation/devicetree/bindings/iio/adc/ti-adc12138.txt > deleted file mode 100644 > index 049a1d36f013..000000000000 > --- a/Documentation/devicetree/bindings/iio/adc/ti-adc12138.txt > +++ /dev/null > @@ -1,37 +0,0 @@ > -* Texas Instruments' ADC12130/ADC12132/ADC12138 > - > -Required properties: > - - compatible: Should be one of > - * "ti,adc12130" > - * "ti,adc12132" > - * "ti,adc12138" > - - reg: SPI chip select number for the device > - - interrupts: Should contain interrupt for EOC (end of conversion) > - - clocks: phandle to conversion clock input > - - spi-max-frequency: Definision as per > - Documentation/devicetree/bindings/spi/spi-bus.txt > - - vref-p-supply: The regulator supply for positive analog voltage reference > - > -Optional properties: > - - vref-n-supply: The regulator supply for negative analog voltage reference > - (Note that this must not go below GND or exceed vref-p) > - If not specified, this is assumed to be analog ground. > - - ti,acquisition-time: The number of conversion clock periods for the S/H's > - acquisition time. Should be one of 6, 10, 18, 34. If not specified, > - default value of 10 is used. > - For high source impedances, this value can be increased to 18 or 34. > - For less ADC accuracy and/or slower CCLK frequencies this value may be > - decreased to 6. See section 6.0 INPUT SOURCE RESISTANCE in the > - datasheet for details. > - > -Example: > -adc@0 { > - compatible = "ti,adc12138"; > - reg = <0>; > - interrupts = <28 IRQ_TYPE_EDGE_RISING>; > - interrupt-parent = <&gpio1>; > - clocks = <&cclk>; > - vref-p-supply = <&ldo4_reg>; > - spi-max-frequency = <5000000>; > - ti,acquisition-time = <6>; > -}; > -- > 2.28.0 >
