linux-kernel - Re: [PATCH v2] extcon: palmas: Modified the compatible type to *ti,palmas-usb-vid*

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Message-ID: <520EA5D6.3040409@wwwdotorg.org>
Date:	Fri, 16 Aug 2013 16:21:10 -0600
From:	Stephen Warren <swarren@...dotorg.org>
To:	Kishon Vijay Abraham I <kishon@...com>
CC:	bcousson@...libre.com, tony@...mide.com, myungjoo.ham@...sung.com,
	cw00.choi@...sung.com, rob.herring@...xeda.com, pawel.moll@....com,
	mark.rutland@....com, ian.campbell@...rix.com, rob@...dley.net,
	george.cherian@...com, gregkh@...uxfoundation.org,
	linux-doc@...r.kernel.org, linux-omap@...r.kernel.org,
	devicetree@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
	linux@....linux.org.uk, linux-kernel@...r.kernel.org, balbi@...com
Subject: Re: [PATCH v2] extcon: palmas: Modified the compatible type to *ti,palmas-usb-vid*

On 08/16/2013 04:20 AM, Kishon Vijay Abraham I wrote:
> The Palmas device contains only a USB VID detector, so modified the
> compatible type to *ti,palmas-usb-vid*.

> diff --git a/Documentation/devicetree/bindings/extcon/extcon-palmas.txt b/Documentation/devicetree/bindings/extcon/extcon-palmas.txt

>  PALMAS USB COMPARATOR
>  Required Properties:
> - - compatible : Should be "ti,palmas-usb" or "ti,twl6035-usb"
> + - compatible : Should be "ti,palmas-usb-vid".

Has the old value been published in a release kernel? If so, it makes
sense to document both values, but say the old one is deprecated, and ...

> diff --git a/drivers/extcon/extcon-palmas.c b/drivers/extcon/extcon-palmas.c

>  static struct of_device_id of_palmas_match_tbl[] = {
> -	{ .compatible = "ti,palmas-usb", },
> -	{ .compatible = "ti,twl6035-usb", },
> +	{ .compatible = "ti,palmas-usb-vid", },

... perhaps just add the new value here, and don't remove the old values?

If not, ignore this.

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