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0499220d6d
DT properties which can have multiple entries need to specify what the entries are and define how many entries there can be. In the case of only a single entry, just 'maxItems: 1' is sufficient. Add the missing entry constraints. These were found with a modified meta-schema. Unfortunately, there are a few cases where the size constraints are not defined such as common bindings, so the meta-schema can't be part of the normal checks. Cc: Jens Axboe <axboe@kernel.dk> Cc: Stephen Boyd <sboyd@kernel.org> Cc: Thierry Reding <thierry.reding@gmail.com> Cc: MyungJoo Ham <myungjoo.ham@samsung.com> Cc: Chanwoo Choi <cw00.choi@samsung.com> Cc: Linus Walleij <linus.walleij@linaro.org> Cc: Bartosz Golaszewski <bgolaszewski@baylibre.com> Cc: Jonathan Cameron <jic23@kernel.org> Cc: Dmitry Torokhov <dmitry.torokhov@gmail.com> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Marc Zyngier <maz@kernel.org> Cc: Mauro Carvalho Chehab <mchehab@kernel.org> Cc: Chen-Yu Tsai <wens@csie.org> Cc: Ulf Hansson <ulf.hansson@linaro.org> Cc: "David S. Miller" <davem@davemloft.net> Cc: Jakub Kicinski <kuba@kernel.org> Cc: Sebastian Reichel <sre@kernel.org> Cc: Ohad Ben-Cohen <ohad@wizery.com> Cc: Bjorn Andersson <bjorn.andersson@linaro.org> Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Acked-by: Sebastian Reichel <sre@kernel.org> Acked-by: Jonathan Cameron <Jonathan.Cameron@huawei.com> #for-iio Acked-by: Chanwoo Choi <cw00.choi@samsung.com> Reviewed-by: Suman Anna <s-anna@ti.com> Acked-by: Paul Cercueil <paul@crapouillou.net> Acked-by: Dmitry Torokhov <dmitry.torokhov@gmail.com> Acked-by: Bartosz Golaszewski <bgolaszewski@baylibre.com> Reviewed-by: Linus Walleij <linus.walleij@linaro.org> Link: https://lore.kernel.org/r/20210104230253.2805217-1-robh@kernel.org Signed-off-by: Rob Herring <robh@kernel.org>
125 lines
2.5 KiB
YAML
125 lines
2.5 KiB
YAML
# SPDX-License-Identifier: GPL-2.0
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%YAML 1.2
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---
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$id: http://devicetree.org/schemas/iio/adc/adi,ad7768-1.yaml#
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$schema: http://devicetree.org/meta-schemas/core.yaml#
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title: Analog Devices AD7768-1 ADC device driver
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maintainers:
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- Michael Hennerich <michael.hennerich@analog.com>
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description: |
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Datasheet at:
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https://www.analog.com/media/en/technical-documentation/data-sheets/ad7768-1.pdf
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properties:
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compatible:
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const: adi,ad7768-1
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reg:
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maxItems: 1
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clocks:
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maxItems: 1
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clock-names:
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const: mclk
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interrupts:
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maxItems: 1
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'#address-cells':
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const: 1
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'#size-cells':
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const: 0
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vref-supply:
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description:
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ADC reference voltage supply
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adi,sync-in-gpios:
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maxItems: 1
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description:
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Enables synchronization of multiple devices that require simultaneous
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sampling. A pulse is always required if the configuration is changed
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in any way, for example if the filter decimation rate changes.
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As the line is active low, it should be marked GPIO_ACTIVE_LOW.
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reset-gpios:
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maxItems: 1
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spi-max-frequency: true
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spi-cpol: true
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spi-cpha: true
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"#io-channel-cells":
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const: 1
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required:
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- compatible
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- reg
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- clocks
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- clock-names
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- vref-supply
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- spi-cpol
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- spi-cpha
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- adi,sync-in-gpios
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patternProperties:
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"^channel@([0-9]|1[0-5])$":
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type: object
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description: |
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Represents the external channels which are connected to the device.
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properties:
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reg:
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maxItems: 1
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description: |
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The channel number.
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label:
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description: |
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Unique name to identify which channel this is.
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required:
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- reg
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additionalProperties: false
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additionalProperties: false
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examples:
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- |
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#include <dt-bindings/interrupt-controller/irq.h>
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#include <dt-bindings/gpio/gpio.h>
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spi {
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#address-cells = <1>;
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#size-cells = <0>;
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adc@0 {
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compatible = "adi,ad7768-1";
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reg = <0>;
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spi-max-frequency = <2000000>;
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spi-cpol;
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spi-cpha;
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vref-supply = <&adc_vref>;
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interrupts = <25 IRQ_TYPE_EDGE_RISING>;
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interrupt-parent = <&gpio>;
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adi,sync-in-gpios = <&gpio 22 GPIO_ACTIVE_LOW>;
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reset-gpios = <&gpio 27 GPIO_ACTIVE_LOW>;
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clocks = <&ad7768_mclk>;
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clock-names = "mclk";
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#address-cells = <1>;
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#size-cells = <0>;
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channel@0 {
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reg = <0>;
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label = "channel_0";
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};
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};
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};
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...
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