linux-kernel - Re: [PATCH v2 01/13] dt-bindings: gpio: add common schema for GPIO controllers

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Date:   Sun, 20 Sep 2020 21:39:15 +0200
From:   Krzysztof Kozlowski <krzk@...nel.org>
To:     Rob Herring <robh+dt@...nel.org>
Cc:     Linus Walleij <linus.walleij@...aro.org>,
        Bartosz Golaszewski <bgolaszewski@...libre.com>,
        Ray Jui <rjui@...adcom.com>,
        Scott Branden <sbranden@...adcom.com>,
        "maintainer:BROADCOM BCM7XXX ARM ARCHITECTURE" 
        <bcm-kernel-feedback-list@...adcom.com>,
        Shawn Guo <shawnguo@...nel.org>,
        Sascha Hauer <s.hauer@...gutronix.de>,
        Pengutronix Kernel Team <kernel@...gutronix.de>,
        Fabio Estevam <festevam@...il.com>,
        NXP Linux Team <linux-imx@....com>,
        "open list:GPIO SUBSYSTEM" <linux-gpio@...r.kernel.org>,
        devicetree@...r.kernel.org,
        linux-arm-kernel <linux-arm-kernel@...ts.infradead.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        linux-unisoc@...ts.infradead.org,
        linux-arm-msm <linux-arm-msm@...r.kernel.org>,
        linux-riscv <linux-riscv@...ts.infradead.org>,
        Linux Media Mailing List <linux-media@...r.kernel.org>,
        Linux-ALSA <alsa-devel@...a-project.org>,
        "moderated list:ARM/STM32 ARCHITECTURE" 
        <linux-stm32@...md-mailman.stormreply.com>,
        "moderated list:ARM/Mediatek SoC support" 
        <linux-mediatek@...ts.infradead.org>,
        "open list:MEDIA DRIVERS FOR RENESAS - FCP" 
        <linux-renesas-soc@...r.kernel.org>
Subject: Re: [PATCH v2 01/13] dt-bindings: gpio: add common schema for GPIO
 controllers

On Fri, Sep 18, 2020 at 08:30:02AM -0600, Rob Herring wrote:
> On Thu, Sep 17, 2020 at 10:53 AM Krzysztof Kozlowski <krzk@...nel.org> wrote:
> >
> > Convert parts of gpio.txt bindings into common dtschema file for GPIO
> > controllers.  The schema enforces proper naming of GPIO controller nodes
> > and GPIO hogs.
> 
> Did you not see my previous reply about a common schema? We already
> have a common GPIO and hog schema in dtschema. Please add to it
> whatever is missing.

Indeed, I'll enhance the dt-schema.

The trouble is that each in-kernel YAML file still has to mention
possible gpio-hogs nodes. Is the proper solution to put them in common
YAML inside kernel sources?

> 
> My goal is all common schema end up in dtschema, but I haven't pushed
> folks to do that yet. Ones I've done are there though. One issue is
> what's in dtschema should be GPL/BSD and the existing text bindings
> are default GPL, so there's a relicensing exercise. In some cases, the
> schema is there but I haven't copied over the descriptions.

Right, I'll skip the descriptions when posting to dt-schema.

Best regards,
Krzysztof