linux-kernel - Re: [PATCH v5 2/2] dt-bindings: mfd: update TI tps6105x chip bindings

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Message-ID: <20191216110939.GJ3601@dell>
Date:   Mon, 16 Dec 2019 11:09:39 +0000
From:   Lee Jones <lee.jones@...aro.org>
To:     Sven Van Asbroeck <thesven73@...il.com>
Cc:     Pavel Machek <pavel@....cz>,
        Linus Walleij <linus.walleij@...aro.org>,
        Grigoryev Denis <grigoryev@...twel.ru>,
        Axel Lin <axel.lin@...ics.com>,
        Jacek Anaszewski <jacek.anaszewski@...il.com>,
        Dan Murphy <dmurphy@...com>, Rob Herring <robh+dt@...nel.org>,
        Mark Rutland <mark.rutland@....com>,
        devicetree@...r.kernel.org, linux-kernel@...r.kernel.org,
        linux-leds@...r.kernel.org
Subject: Re: [PATCH v5 2/2] dt-bindings: mfd: update TI tps6105x chip bindings

On Mon, 09 Dec 2019, Sven Van Asbroeck wrote:

> The driver has been extended to optionally get its operational
> mode, regulator init data and LED naming from the devicetree.
> 
> Tree: next-20191118

Please refrain from putting this in the commit message.

> Acked-by: Jacek Anaszewski <jacek.anaszewski@...il.com>
> Reviewed-by: Rob Herring <robh@...nel.org>
> Signed-off-by: Sven Van Asbroeck <TheSven73@...il.com>
> ---

... if you really want to put that in, place it here, so it doesn't
become part of the kernel's Git history.

>  .../devicetree/bindings/mfd/tps6105x.txt      | 47 ++++++++++++++++++-
>  1 file changed, 46 insertions(+), 1 deletion(-)
> 
> diff --git a/Documentation/devicetree/bindings/mfd/tps6105x.txt b/Documentation/devicetree/bindings/mfd/tps6105x.txt
> index 93602c7a19c8..d15763740a3f 100644
> --- a/Documentation/devicetree/bindings/mfd/tps6105x.txt
> +++ b/Documentation/devicetree/bindings/mfd/tps6105x.txt
> @@ -7,11 +7,56 @@ Required properties:
>  - compatible:		"ti,tps61050" or "ti,tps61052"
>  - reg:			Specifies the I2C slave address
>  
> -Example:
> +Optional sub-node:
> +
> +This subnode selects the chip's operational mode.
> +There can be at most one single available subnode.
> +
> +- regulator: presence of this sub-node puts the chip in regulator mode.
> +	see Documentation/devicetree/bindings/regulator/regulator.txt

Relative paths are preferred.

> +- led: presence of this sub-node puts the chip in led mode.
> +	Optional properties:
> +	- function : see ../leds/common.txt
> +	- color    : see ../leds/common.txt
> +	- label    : see ../leds/common.txt

Yes, like this.

> +			(deprecated)
> +
> +Example (GPIO operation only):
> +
> +i2c0 {
> +	tps61052@33 {
> +		compatible = "ti,tps61052";
> +		reg = <0x33>;
> +	};
> +};
> +
> +Example (GPIO + regulator operation):
>  
>  i2c0 {
>  	tps61052@33 {
>  		compatible = "ti,tps61052";
>  		reg = <0x33>;
> +
> +		regulator {
> +			regulator-min-microvolt = <5000000>;
> +			regulator-max-microvolt = <5000000>;
> +			regulator-always-on;
> +		};
> +	};
> +};
> +
> +Example (GPIO + led operation):
> +
> +#include <dt-bindings/leds/common.h>
> +
> +i2c0 {
> +	tps61052@33 {
> +		compatible = "ti,tps61052";
> +		reg = <0x33>;
> +
> +		led {
> +			color = <LED_COLOR_ID_WHITE>;
> +		};
>  	};
>  };

-- 
Lee Jones [李琼斯]
Linaro Services Technical Lead
Linaro.org │ Open source software for ARM SoCs
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