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Message-ID: <20200712122219.6c9e1e62@archlinux>
Date: Sun, 12 Jul 2020 12:22:19 +0100
From: Jonathan Cameron <jic23@...nel.org>
To: Artur Rojek <contact@...ur-rojek.eu>
Cc: Dmitry Torokhov <dmitry.torokhov@...il.com>,
Rob Herring <robh+dt@...nel.org>,
Mark Rutland <mark.rutland@....com>,
Paul Cercueil <paul@...pouillou.net>,
Andy Shevchenko <andy.shevchenko@...il.com>,
Heiko Stuebner <heiko@...ech.de>,
Ezequiel Garcia <ezequiel@...guardiasur.com.ar>,
devicetree@...r.kernel.org, linux-iio@...r.kernel.org,
linux-kernel@...r.kernel.org, Rob Herring <robh@...nel.org>
Subject: Re: [PATCH v8 1/6] dt-bindings: iio/adc: Convert ingenic-adc docs
to YAML.
On Thu, 9 Jul 2020 17:21:55 +0200
Artur Rojek <contact@...ur-rojek.eu> wrote:
> Convert the textual documentation of Device Tree bindings for the
> Ingenic JZ47xx SoCs ADC controller to YAML.
>
> The `interrupts` property is now explicitly listed and marked as
> required. While missing from the previous textual documentation, this
> property has been used with all the boards which probe this driver.
>
> Signed-off-by: Artur Rojek <contact@...ur-rojek.eu>
> Tested-by: Paul Cercueil <paul@...pouillou.net>
> Reviewed-by: Rob Herring <robh@...nel.org>
Given this is a good change on it's own. I'll apply it before even
reading the rest of the series. If we do need to go to a v9 at least
it'll be shorter ;)
Applied to the togreg branch of iio.git and pushed out as testing
for the autobuilders to poke at it.
Thanks,
Jonathan
> ---
>
> Changes:
>
> v6: new patch
>
> v7: - specify `maxItems: 1` for single entry properties
> - get rid of redundant descriptions of said properties
>
> v8: no change
>
> .../bindings/iio/adc/ingenic,adc.txt | 49 -------------
> .../bindings/iio/adc/ingenic,adc.yaml | 71 +++++++++++++++++++
> 2 files changed, 71 insertions(+), 49 deletions(-)
> delete mode 100644 Documentation/devicetree/bindings/iio/adc/ingenic,adc.txt
> create mode 100644 Documentation/devicetree/bindings/iio/adc/ingenic,adc.yaml
>
> diff --git a/Documentation/devicetree/bindings/iio/adc/ingenic,adc.txt b/Documentation/devicetree/bindings/iio/adc/ingenic,adc.txt
> deleted file mode 100644
> index cd9048cf9dcf..000000000000
> --- a/Documentation/devicetree/bindings/iio/adc/ingenic,adc.txt
> +++ /dev/null
> @@ -1,49 +0,0 @@
> -* Ingenic JZ47xx ADC controller IIO bindings
> -
> -Required properties:
> -
> -- compatible: Should be one of:
> - * ingenic,jz4725b-adc
> - * ingenic,jz4740-adc
> - * ingenic,jz4770-adc
> -- reg: ADC controller registers location and length.
> -- clocks: phandle to the SoC's ADC clock.
> -- clock-names: Must be set to "adc".
> -- #io-channel-cells: Must be set to <1> to indicate channels are selected
> - by index.
> -
> -ADC clients must use the format described in iio-bindings.txt, giving
> -a phandle and IIO specifier pair ("io-channels") to the ADC controller.
> -
> -Example:
> -
> -#include <dt-bindings/iio/adc/ingenic,adc.h>
> -
> -adc: adc@...70000 {
> - compatible = "ingenic,jz4740-adc";
> - #io-channel-cells = <1>;
> -
> - reg = <0x10070000 0x30>;
> -
> - clocks = <&cgu JZ4740_CLK_ADC>;
> - clock-names = "adc";
> -
> - interrupt-parent = <&intc>;
> - interrupts = <18>;
> -};
> -
> -adc-keys {
> - ...
> - compatible = "adc-keys";
> - io-channels = <&adc INGENIC_ADC_AUX>;
> - io-channel-names = "buttons";
> - ...
> -};
> -
> -battery {
> - ...
> - compatible = "ingenic,jz4740-battery";
> - io-channels = <&adc INGENIC_ADC_BATTERY>;
> - io-channel-names = "battery";
> - ...
> -};
> diff --git a/Documentation/devicetree/bindings/iio/adc/ingenic,adc.yaml b/Documentation/devicetree/bindings/iio/adc/ingenic,adc.yaml
> new file mode 100644
> index 000000000000..9f414dbdae86
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/iio/adc/ingenic,adc.yaml
> @@ -0,0 +1,71 @@
> +# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
> +# Copyright 2019-2020 Artur Rojek
> +%YAML 1.2
> +---
> +$id: "http://devicetree.org/schemas/iio/adc/ingenic,adc.yaml#"
> +$schema: "http://devicetree.org/meta-schemas/core.yaml#"
> +
> +title: Ingenic JZ47xx ADC controller IIO bindings
> +
> +maintainers:
> + - Artur Rojek <contact@...ur-rojek.eu>
> +
> +description: >
> + Industrial I/O subsystem bindings for ADC controller found in
> + Ingenic JZ47xx SoCs.
> +
> + ADC clients must use the format described in iio-bindings.txt, giving
> + a phandle and IIO specifier pair ("io-channels") to the ADC controller.
> +
> +properties:
> + compatible:
> + enum:
> + - ingenic,jz4725b-adc
> + - ingenic,jz4740-adc
> + - ingenic,jz4770-adc
> +
> + '#io-channel-cells':
> + const: 1
> + description:
> + Must be set to <1> to indicate channels are selected by index.
> +
> + reg:
> + maxItems: 1
> +
> + clocks:
> + maxItems: 1
> +
> + clock-names:
> + items:
> + - const: adc
> +
> + interrupts:
> + maxItems: 1
> +
> +required:
> + - compatible
> + - '#io-channel-cells'
> + - reg
> + - clocks
> + - clock-names
> + - interrupts
> +
> +additionalProperties: false
> +
> +examples:
> + - |
> + #include <dt-bindings/clock/jz4740-cgu.h>
> + #include <dt-bindings/iio/adc/ingenic,adc.h>
> +
> + adc@...70000 {
> + compatible = "ingenic,jz4740-adc";
> + #io-channel-cells = <1>;
> +
> + reg = <0x10070000 0x30>;
> +
> + clocks = <&cgu JZ4740_CLK_ADC>;
> + clock-names = "adc";
> +
> + interrupt-parent = <&intc>;
> + interrupts = <18>;
> + };
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