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Date: Sat, 12 Oct 2019 10:44:37 +0100
From: Jonathan Cameron <jic23@...nel.org>
To: Rob Herring <robh@...nel.org>
Cc: devicetree@...r.kernel.org, linux-kernel@...r.kernel.org,
Neil Armstrong <narmstrong@...libre.com>,
Kevin Hilman <khilman@...libre.com>,
Krzysztof Kozlowski <krzk@...nel.org>,
Kishon Vijay Abraham I <kishon@...com>,
Liam Girdwood <lgirdwood@...il.com>,
Mark Brown <broonie@...nel.org>, linux-iio@...r.kernel.org
Subject: Re: [PATCH] dt-bindings: Clean-up regulator '-supply' schemas
On Fri, 11 Oct 2019 14:02:31 -0500
Rob Herring <robh@...nel.org> wrote:
> Regulator '*-supply' properties are always a single phandle, so
> 'maxItems: 1' or a $ref is not necessary. All that's needed is either
> 'true' or an optional 'description'. Following this clean-up, the
> meta-schema will enforce this pattern.
>
> There's one case in tree with 'innolux,n156bge-l21' having 2 phandles.
> This appears to be a mistake or abuse of simple-panel as it's 2 different
> voltage rails connected to 'power-supply'.
Nice to centralise bits of schema like this, though perhaps it does
make everything feel a bit unpredictable as not obvious to someone writing
a binding that a particular corner has been centralized but others haven't.
Oh well, I guess they should look at the relevant docs for each bit.
Acked-by: Jonathan Cameron <Jonathan.Cameron@...wei.com> # for iio
Thanks,
Jonathan
>
> Cc: Neil Armstrong <narmstrong@...libre.com>
> Cc: Kevin Hilman <khilman@...libre.com>
> Cc: Jonathan Cameron <jic23@...nel.org>
> Cc: Krzysztof Kozlowski <krzk@...nel.org>
> Cc: Kishon Vijay Abraham I <kishon@...com>
> Cc: Liam Girdwood <lgirdwood@...il.com>
> Cc: Mark Brown <broonie@...nel.org>
> Cc: linux-iio@...r.kernel.org
> Signed-off-by: Rob Herring <robh@...nel.org>
> ---
> .../devicetree/bindings/display/amlogic,meson-dw-hdmi.yaml | 2 --
> Documentation/devicetree/bindings/gpu/arm,mali-bifrost.yaml | 3 +--
> Documentation/devicetree/bindings/gpu/arm,mali-midgard.yaml | 3 +--
> Documentation/devicetree/bindings/gpu/arm,mali-utgard.yaml | 3 +--
> Documentation/devicetree/bindings/iio/adc/adi,ad7124.yaml | 3 ---
> Documentation/devicetree/bindings/iio/adc/adi,ad7606.yaml | 5 +----
> Documentation/devicetree/bindings/iio/adc/adi,ad7780.yaml | 1 -
> Documentation/devicetree/bindings/iio/adc/avia-hx711.yaml | 1 -
> .../devicetree/bindings/iio/adc/samsung,exynos-adc.yaml | 4 +---
> .../devicetree/bindings/iio/chemical/plantower,pms7003.yaml | 1 -
> Documentation/devicetree/bindings/iio/pressure/bmp085.yaml | 2 --
> .../devicetree/bindings/phy/amlogic,meson-g12a-usb2-phy.yaml | 1 -
> .../devicetree/bindings/regulator/fixed-regulator.yaml | 1 -
> 13 files changed, 5 insertions(+), 25 deletions(-)
>
> diff --git a/Documentation/devicetree/bindings/display/amlogic,meson-dw-hdmi.yaml b/Documentation/devicetree/bindings/display/amlogic,meson-dw-hdmi.yaml
> index fb747682006d..0da42ab8fd3a 100644
> --- a/Documentation/devicetree/bindings/display/amlogic,meson-dw-hdmi.yaml
> +++ b/Documentation/devicetree/bindings/display/amlogic,meson-dw-hdmi.yaml
> @@ -79,8 +79,6 @@ properties:
>
> hdmi-supply:
> description: phandle to an external 5V regulator to power the HDMI logic
> - allOf:
> - - $ref: /schemas/types.yaml#/definitions/phandle
>
> port@0:
> type: object
> diff --git a/Documentation/devicetree/bindings/gpu/arm,mali-bifrost.yaml b/Documentation/devicetree/bindings/gpu/arm,mali-bifrost.yaml
> index 5f1fd6d7ee0f..e50a0cc78fff 100644
> --- a/Documentation/devicetree/bindings/gpu/arm,mali-bifrost.yaml
> +++ b/Documentation/devicetree/bindings/gpu/arm,mali-bifrost.yaml
> @@ -37,8 +37,7 @@ properties:
> clocks:
> maxItems: 1
>
> - mali-supply:
> - maxItems: 1
> + mali-supply: true
>
> operating-points-v2: true
>
> diff --git a/Documentation/devicetree/bindings/gpu/arm,mali-midgard.yaml b/Documentation/devicetree/bindings/gpu/arm,mali-midgard.yaml
> index 47bc1ac36426..5c576e5019c6 100644
> --- a/Documentation/devicetree/bindings/gpu/arm,mali-midgard.yaml
> +++ b/Documentation/devicetree/bindings/gpu/arm,mali-midgard.yaml
> @@ -69,8 +69,7 @@ properties:
> - const: core
> - const: bus
>
> - mali-supply:
> - maxItems: 1
> + mali-supply: true
>
> resets:
> minItems: 1
> diff --git a/Documentation/devicetree/bindings/gpu/arm,mali-utgard.yaml b/Documentation/devicetree/bindings/gpu/arm,mali-utgard.yaml
> index c5d93c5839d3..afde81be3c29 100644
> --- a/Documentation/devicetree/bindings/gpu/arm,mali-utgard.yaml
> +++ b/Documentation/devicetree/bindings/gpu/arm,mali-utgard.yaml
> @@ -97,8 +97,7 @@ properties:
>
> memory-region: true
>
> - mali-supply:
> - maxItems: 1
> + mali-supply: true
>
> power-domains:
> maxItems: 1
> diff --git a/Documentation/devicetree/bindings/iio/adc/adi,ad7124.yaml b/Documentation/devicetree/bindings/iio/adc/adi,ad7124.yaml
> index 9692b7f719f5..e932d5aed02f 100644
> --- a/Documentation/devicetree/bindings/iio/adc/adi,ad7124.yaml
> +++ b/Documentation/devicetree/bindings/iio/adc/adi,ad7124.yaml
> @@ -45,15 +45,12 @@ properties:
>
> refin1-supply:
> description: refin1 supply can be used as reference for conversion.
> - maxItems: 1
>
> refin2-supply:
> description: refin2 supply can be used as reference for conversion.
> - maxItems: 1
>
> avdd-supply:
> description: avdd supply can be used as reference for conversion.
> - maxItems: 1
>
> required:
> - compatible
> diff --git a/Documentation/devicetree/bindings/iio/adc/adi,ad7606.yaml b/Documentation/devicetree/bindings/iio/adc/adi,ad7606.yaml
> index cc544fdc38be..6eb33207a167 100644
> --- a/Documentation/devicetree/bindings/iio/adc/adi,ad7606.yaml
> +++ b/Documentation/devicetree/bindings/iio/adc/adi,ad7606.yaml
> @@ -31,10 +31,7 @@ properties:
>
> spi-cpha: true
>
> - avcc-supply:
> - description:
> - Phandle to the Avcc power supply
> - maxItems: 1
> + avcc-supply: true
>
> interrupts:
> maxItems: 1
> diff --git a/Documentation/devicetree/bindings/iio/adc/adi,ad7780.yaml b/Documentation/devicetree/bindings/iio/adc/adi,ad7780.yaml
> index d1109416963c..9acde6d2e2d9 100644
> --- a/Documentation/devicetree/bindings/iio/adc/adi,ad7780.yaml
> +++ b/Documentation/devicetree/bindings/iio/adc/adi,ad7780.yaml
> @@ -39,7 +39,6 @@ properties:
> avdd-supply:
> description:
> The regulator supply for the ADC reference voltage.
> - maxItems: 1
>
> powerdown-gpios:
> description:
> diff --git a/Documentation/devicetree/bindings/iio/adc/avia-hx711.yaml b/Documentation/devicetree/bindings/iio/adc/avia-hx711.yaml
> index d76ece97c76c..91ab9c842273 100644
> --- a/Documentation/devicetree/bindings/iio/adc/avia-hx711.yaml
> +++ b/Documentation/devicetree/bindings/iio/adc/avia-hx711.yaml
> @@ -41,7 +41,6 @@ properties:
> avdd-supply:
> description:
> Definition of the regulator used as analog supply
> - maxItems: 1
>
> clock-frequency:
> minimum: 20000
> diff --git a/Documentation/devicetree/bindings/iio/adc/samsung,exynos-adc.yaml b/Documentation/devicetree/bindings/iio/adc/samsung,exynos-adc.yaml
> index b4c6c26681d9..9218b2efa62f 100644
> --- a/Documentation/devicetree/bindings/iio/adc/samsung,exynos-adc.yaml
> +++ b/Documentation/devicetree/bindings/iio/adc/samsung,exynos-adc.yaml
> @@ -46,9 +46,7 @@ properties:
> "#io-channel-cells":
> const: 1
>
> - vdd-supply:
> - description: VDD input supply
> - maxItems: 1
> + vdd-supply: true
>
> samsung,syscon-phandle:
> $ref: '/schemas/types.yaml#/definitions/phandle'
> diff --git a/Documentation/devicetree/bindings/iio/chemical/plantower,pms7003.yaml b/Documentation/devicetree/bindings/iio/chemical/plantower,pms7003.yaml
> index a551d3101f93..19e53930ebf6 100644
> --- a/Documentation/devicetree/bindings/iio/chemical/plantower,pms7003.yaml
> +++ b/Documentation/devicetree/bindings/iio/chemical/plantower,pms7003.yaml
> @@ -25,7 +25,6 @@ properties:
>
> vcc-supply:
> description: regulator that provides power to the sensor
> - maxItems: 1
>
> plantower,set-gpios:
> description: GPIO connected to the SET line
> diff --git a/Documentation/devicetree/bindings/iio/pressure/bmp085.yaml b/Documentation/devicetree/bindings/iio/pressure/bmp085.yaml
> index c6721a7e8938..519137e5c170 100644
> --- a/Documentation/devicetree/bindings/iio/pressure/bmp085.yaml
> +++ b/Documentation/devicetree/bindings/iio/pressure/bmp085.yaml
> @@ -28,12 +28,10 @@ properties:
> vddd-supply:
> description:
> digital voltage regulator (see regulator/regulator.txt)
> - maxItems: 1
>
> vdda-supply:
> description:
> analog voltage regulator (see regulator/regulator.txt)
> - maxItems: 1
>
> reset-gpios:
> description:
> diff --git a/Documentation/devicetree/bindings/phy/amlogic,meson-g12a-usb2-phy.yaml b/Documentation/devicetree/bindings/phy/amlogic,meson-g12a-usb2-phy.yaml
> index 51254b4e65dd..57d8603076bd 100644
> --- a/Documentation/devicetree/bindings/phy/amlogic,meson-g12a-usb2-phy.yaml
> +++ b/Documentation/devicetree/bindings/phy/amlogic,meson-g12a-usb2-phy.yaml
> @@ -36,7 +36,6 @@ properties:
> const: 0
>
> phy-supply:
> - maxItems: 1
> description:
> Phandle to a regulator that provides power to the PHY. This
> regulator will be managed during the PHY power on/off sequence.
> diff --git a/Documentation/devicetree/bindings/regulator/fixed-regulator.yaml b/Documentation/devicetree/bindings/regulator/fixed-regulator.yaml
> index a78150c47aa2..e56d97b233f4 100644
> --- a/Documentation/devicetree/bindings/regulator/fixed-regulator.yaml
> +++ b/Documentation/devicetree/bindings/regulator/fixed-regulator.yaml
> @@ -64,7 +64,6 @@ properties:
>
> vin-supply:
> description: Input supply phandle.
> - $ref: /schemas/types.yaml#/definitions/phandle
>
> required:
> - compatible
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