From e7b61fc4ca5e7c6869f224d56c5c585fea884c94 Mon Sep 17 00:00:00 2001 From: Jonathan Cameron Date: Sun, 9 Aug 2020 12:17:53 +0100 Subject: [PATCH] dt-bindings: iio: adc: ti,tlc4541 binding conversion Simple binding so easy to convert. Dropped the stated value of maximum spi bus frequency as it does not seem to correspond to the datasheet. The value of 200kHz is the max sampling frequency of the ADC, not the clock frequency of the SPI bus. Added #io-channel-cells to allow use as a provider of channels to other devices via the consumer binding. Signed-off-by: Jonathan Cameron Reviewed-by: Rob Herring Reviewed-By: Phil Reid Cc: Phil Reid Link: https://lore.kernel.org/r/20200809111753.156236-14-jic23@kernel.org --- .../devicetree/bindings/iio/adc/ti,tlc4541.yaml | 52 ++++++++++++++++++++++ .../devicetree/bindings/iio/adc/ti-tlc4541.txt | 17 ------- 2 files changed, 52 insertions(+), 17 deletions(-) create mode 100644 Documentation/devicetree/bindings/iio/adc/ti,tlc4541.yaml delete mode 100644 Documentation/devicetree/bindings/iio/adc/ti-tlc4541.txt diff --git a/Documentation/devicetree/bindings/iio/adc/ti,tlc4541.yaml b/Documentation/devicetree/bindings/iio/adc/ti,tlc4541.yaml new file mode 100644 index 0000000..6c2539b --- /dev/null +++ b/Documentation/devicetree/bindings/iio/adc/ti,tlc4541.yaml @@ -0,0 +1,52 @@ +# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/iio/adc/ti,tlc4541.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: Texas Instruments TLC4541 and similar ADCs + +maintainers: + - Phil Reid + +description: | + 14/16bit single channel ADC with SPI interface. + +properties: + compatible: + enum: + - ti,tlc3541 + - ti,tlc4541 + + reg: + maxItems: 1 + + spi-max-frequency: true + + vref-supply: true + + "#io-channel-cells": + const: 1 + +required: + - compatible + - reg + - vref-supply + +additionalProperties: false + +examples: + - | + spi { + #address-cells = <1>; + #size-cells = <0>; + + adc@0 { + compatible = "ti,tlc4541"; + reg = <0>; + vref-supply = <&vdd_supply>; + spi-max-frequency = <200000>; + #io-channel-cells = <1>; + }; + }; +... diff --git a/Documentation/devicetree/bindings/iio/adc/ti-tlc4541.txt b/Documentation/devicetree/bindings/iio/adc/ti-tlc4541.txt deleted file mode 100644 index 6b26927..0000000 --- a/Documentation/devicetree/bindings/iio/adc/ti-tlc4541.txt +++ /dev/null @@ -1,17 +0,0 @@ -* Texas Instruments' TLC4541 - -Required properties: - - compatible: Should be one of - * "ti,tlc4541" - * "ti,tlc3541" - - reg: SPI chip select number for the device - - vref-supply: The regulator supply for ADC reference voltage - - spi-max-frequency: Max SPI frequency to use (<= 200000) - -Example: -adc@0 { - compatible = "ti,tlc4541"; - reg = <0>; - vref-supply = <&vdd_supply>; - spi-max-frequency = <200000>; -}; -- 2.7.4