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From:   Felipe Balbi <balbi@kernel.org>
To:     Linus Walleij <linus.walleij@linaro.org>,
        Drew Fustini <drew@beagleboard.org>
Cc:     Grygorii Strashko <grygorii.strashko@ti.com>,
        =?utf-8?Q?Beno=C3=AEt?= Cousson <bcousson@baylibre.com>,
        Tony Lindgren <tony@atomide.com>,
        Rob Herring <robh+dt@kernel.org>,
        Linux-OMAP <linux-omap@vger.kernel.org>,
        "open list\:OPEN FIRMWARE AND FLATTENED DEVICE TREE BINDINGS" 
        <devicetree@vger.kernel.org>,
        "linux-kernel\@vger.kernel.org" <linux-kernel@vger.kernel.org>,
        Jason Kridner <jkridner@beagleboard.org>,
        Robert Nelson <robertcnelson@beagleboard.org>
Subject: Re: [PATCH] arm: dts: am33xx-bone-common: add gpio-line-names
In-Reply-To: <CACRpkdb+ZP6rfjGg6Ef9_wYvNf6qmSc7LZyYBVKA3XWCtxPfqQ@mail.gmail.com>
References: <20200508165821.GA14555@x1> <CACRpkdb+ZP6rfjGg6Ef9_wYvNf6qmSc7LZyYBVKA3XWCtxPfqQ@mail.gmail.com>
Date:   Mon, 18 May 2020 11:18:38 +0300
Message-ID: <875zcty7tt.fsf@kernel.org>
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Linus Walleij <linus.walleij@linaro.org> writes:
>> gpiochip0 - 32 lines:
>>         line   0:   "ethernet"       unused   input  active-high
>>         line   1:   "ethernet"       unused   input  active-high
>
> Why are the ethernet lines not tagged with respective signal name
> when right below the SPI lines are explicitly tagged with
> sclk, cs0 etc?
>
> Ethernet is usually RGMII and has signal names like
> tx_clk, tx_d0, tx_en etc.
>
> Also some lines seem to be tagged with the pin number
> like P9_22, P2_21 below, it seems a bit inconsistent
> to have much information on some pins and very sketchy
> information on some.

the pin names match the beagle bone documentation and would help users
figure out which pins on the expansion headers match to a gpio signal.

=2D-=20
balbi

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