linux-kernel - Re: [PATCH 1/2] dt-bindings: regulator: extend tps65218 bindings

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Date:   Fri, 28 Dec 2018 16:51:23 -0600
From:   Rob Herring <robh@...nel.org>
To:     Christian Hohnstaedt <Christian.Hohnstaedt@...o.com>
Cc:     Lee Jones <lee.jones@...aro.org>,
        Liam Girdwood <lgirdwood@...il.com>,
        Mark Brown <broonie@...nel.org>,
        Mark Rutland <mark.rutland@....com>,
        Tony Lindgren <tony@...mide.com>, linux-kernel@...r.kernel.org,
        devicetree@...r.kernel.org, linux-omap@...r.kernel.org
Subject: Re: [PATCH 1/2] dt-bindings: regulator: extend tps65218 bindings

On Tue, Dec 18, 2018 at 09:05:55AM +0100, Christian Hohnstaedt wrote:
> Add input voltage configuration options
> 
> Signed-off-by: Christian Hohnstaedt <Christian.Hohnstaedt@...o.com>
> ---
>  Documentation/devicetree/bindings/regulator/tps65218.txt | 10 ++++++++++
>  1 file changed, 10 insertions(+)
> 
> diff --git a/Documentation/devicetree/bindings/regulator/tps65218.txt b/Documentation/devicetree/bindings/regulator/tps65218.txt
> index 02f0e9b..a9ee377 100644
> --- a/Documentation/devicetree/bindings/regulator/tps65218.txt
> +++ b/Documentation/devicetree/bindings/regulator/tps65218.txt
> @@ -16,12 +16,22 @@ Required properties:
>    regulator-dcdc5, regulator-dcdc6, regulator-ldo1, regulator-ls3.
>    Each regulator is defined using the standard binding for regulators.
>  
> +Optional properties:
> +  If any of these properties is absent, the setting will not be touched.
> +- strict-supply-voltage: <1|0> Set/Reset STRICT flag in CONFIG1
> +- under-voltage-limit: Select 2.75, 2.95, 3.25 or 3.35V as UVLO in CONFIG1
> +- under-voltage-hysteresis: Select 200mV or 400mV UVLOHYS in CONFIG2

These need vendor prefixes and unit suffixes (as defined in 
property-units.txt).

> +
>  Example:
>  tps65218: tps65218@24 {
>  	reg = <0x24>;
>  	compatible = "ti,tps65218";
>  	interrupts = <GIC_SPI 7 IRQ_TYPE_NONE>; /* NMIn */
>  	interrupt-controller;
> +	strict-supply-voltage = <1>;
> +	under-voltage-hysteresis = <400000>;
> +	under-voltage-limit = <3350000>;
> +
>  	#interrupt-cells = <2>;
>  
>  	dcdc1: regulator-dcdc1 {
> -- 
> 2.7.4
>